JP7035655B2 - Educational support methods, educational support programs, and educational equipment - Google Patents

Description

The present invention relates to an educational support method, an educational support program, and an educational device.

Conventionally, there is an educational system called MOOC (Massive Open Online Course) that allows learners to take lectures by having them view videos via the Internet. In addition, there is an educational system called curation learning that makes learners learn about specific themes and conducts thinking training by letting learners conduct research and thinking on specific themes and letting learners output the results of research and thinking. be.

Japanese Unexamined Patent Publication No. 2012-227760 Japanese Unexamined Patent Publication No. 2010-4309 Japanese Unexamined Patent Publication No. 2015-5940

Here, when the learner is allowed to view the video, the educator makes it easier for the learner to output the content of any part of the video based on the results of surveys and thoughts of other learners, and has an educational effect. May be expected to improve. However, with the prior art, the educational effect expected by the educator may not be obtained. For example, if a learner refers to the results of another learner's research or thinking, but the part of the video that the other learner needed for the research or thinking is unclear, the other learner's research or It is difficult to understand the result of thinking and it is difficult to utilize it for one's own learning.

In one aspect, the present invention aims to improve the educational effect of moving images.

According to one embodiment, among the information inputs made by each user of the plurality of users in the past at any of the playback positions of the moving image, a plurality of information inputs related to each other are extracted and extracted. Based on the playback position where each of the multiple information inputs was performed, the amount of video return from the reference position to the playback position before the playback position where any of the multiple information inputs was performed is determined. Educational support methods, educational support programs and educational equipment are proposed.

According to one aspect, it is possible to improve the educational effect of the moving image.

FIG. 1 is an explanatory diagram showing an embodiment of an educational support method according to an embodiment. FIG. 2 is an explanatory diagram showing an example of the education system 200. FIG. 3 is a block diagram showing a hardware configuration example of the educational device 100. FIG. 4 is an explanatory diagram showing an example of the stored contents of the clip information table 400. FIG. 5 is an explanatory diagram showing an example of the stored contents of the group information table 500. FIG. 6 is an explanatory diagram showing an example of the stored contents of the user average value table 600. FIG. 7 is an explanatory diagram showing an example of the stored contents of the group average value table 700. FIG. 8 is a block diagram showing a hardware configuration example of the client device 201. FIG. 9 is a block diagram showing a functional configuration example of the educational device 100. FIG. 10 is an explanatory diagram showing an example in which a user outputs a clip. FIG. 11 is an explanatory diagram showing a first example of determining a moving image return amount. FIG. 12 is an explanatory diagram (No. 1) showing an example of the determined moving image return amount. FIG. 13 is an explanatory diagram (No. 2) showing an example of the determined moving image return amount. FIG. 14 is an explanatory diagram (No. 1) showing a specific example of determining the amount of moving motion back. FIG. 15 is an explanatory diagram (No. 2) showing a specific example of determining the amount of moving motion back. FIG. 16 is an explanatory diagram showing an example of selecting a review reproduction position. FIG. 17 is an explanatory diagram showing a second example of determining the amount of moving motion back. FIG. 18 is an explanatory diagram showing a third example of determining the amount of moving motion back. FIG. 19 is an explanatory diagram showing a fourth example of determining the amount of moving motion back. FIG. 20 is an explanatory diagram showing an example of displaying a moving image. FIG. 21 is an explanatory diagram showing an example of referring to a clip of another user. FIG. 22 is an explanatory diagram showing another example of displaying a moving image. FIG. 23 is a flowchart showing an example of the overall processing procedure.

Hereinafter, embodiments of the educational support method, the educational support program, and the educational device according to the present invention will be described in detail with reference to the drawings.

(Example of educational support method related to the embodiment)
FIG. 1 is an explanatory diagram showing an embodiment of an educational support method according to an embodiment. The educational device 100 is a computer that improves the educational effect of the moving image on the user by controlling how the user views the moving image. The user is, for example, a learner who uses a MOOC. A moving image is, for example, a group of images used by a MOOC and continuously viewed by a user.

Here, by applying curation learning to MOOC, it is conceivable to improve the educational effect by moving images. For example, it is conceivable to have the user conduct a survey or think about the content of the video and have the user output the result of the survey or thought to deepen the learning about the content of the video and perform thinking training.

The survey is, for example, an information retrieval regarding the content of a moving image. Specifically, the survey is information retrieval based on books or information retrieval via the Internet. The results of the survey are, for example, a search keyword used for information retrieval regarding the content of a moving image, a URL (Uniform Resource Locator) obtained as a result of the information retrieval, a book name, and the like. The result of thinking is, for example, a thought sentence or a comment expressing the result of thinking about the content of the moving image. The output is, for example, recording the results of a survey or thought, creating information that summarizes the results of the survey or thought, or publishing the result of a survey or thought and sharing it with others. .. In the following explanation, the output survey or thought result may be referred to as a "clip".

According to this, the user can perform passive learning of viewing the video, and can investigate and think about various things derived from the content of the video, and output the clip. You can do active learning. Therefore, the user can deepen the learning, can perform thinking training, and can improve the ability to output according to the input.

On the other hand, by making it possible for users who view videos to refer to clips of other users, it is possible to support understanding, research and thinking about the contents of videos, make it easier to output clips, and further educate. It may be possible to improve the effect. For example, while viewing a video, it is conceivable that the user can display the clip of another user so that it can be referred to by associating it with the playback position of the video in which the clip of another user was output in the past. ..

However, even in this case, the educational effect expected by the educator may not be obtained. For example, even if a user refers to another user's clip, the part of the video that other users needed to investigate and think when outputting the clip is unclear, so other users. It's hard to understand how the clip was output. Therefore, it is difficult for the user to utilize the clips of other users for his / her own learning.

On the other hand, the part estimated as the part of the video required for research and thinking when other users output the clip, while treating the length of time required for research and thinking by the user as a constant, It may be possible to scrape it to make it reproducible. In this case, for example, the part from the playback position of the video when another user outputs the clip to a certain time ago is the part of the video required for investigation and thinking when the other user outputs the clip. Estimate as a part.

However, even in this case, the accuracy of estimating the part of the video required for research and thinking when other users output the clip is poor, and the user who browses the video is surveyed and thought by other users. It can be difficult to grasp the part of the video required for. For this reason, it is difficult for the user who browses the video to utilize the clips of other users for his / her own learning, and the educational effect expected by the educator may not be obtained.

In reality, the length of time required for research and thinking when a user outputs a clip is not constant, and if research and thinking are easy, the length of time required for research and thinking will be shorter, and research and thinking will be shorter. If is complicated, the length of time required for research and thinking tends to be long. For this reason, if the part from the playback position of the video when another user outputs the clip to a certain time ago is always estimated as the part of the video that the other user needed for research and thinking, the estimation accuracy is correct. Tends to get worse.

For example, the part of the video estimated as the part of the video that other users need for research and thinking may be shorter than the part of the video that other users actually need for research and thinking. In this case, the part of the video that the user picks up, plays, and browses is less than the part of the video that the other user needed to investigate and think, so what kind of reason other users have? It's hard to understand if you created the clip in.

Also, for example, the part of the video estimated as the part of the video that other users needed for research and thinking may be longer than the part of the video that other users actually needed for research and thinking. .. In this case, the part of the video that the user scrapes, plays, and browses includes the part of the video that other users need for research and thinking. For this reason, the user also browses the part that does not need to be browsed, which causes a decrease in learning efficiency.

Therefore, considering that the length of time required for research and thinking when other users output clips is not constant, it is necessary for other users to research and think when outputting clips. It is preferable to improve the accuracy of estimating the required moving image part.

Therefore, in the present embodiment, among the clips output to various time points of the moving image by some users in the past, the moving image is based on the time point when a plurality of clips related to each other are output. Explains how to support education to decide where to play from. According to this, the educational support method allows users who view the video afterwards to accurately grasp the part of the video that was required for research and thinking when some users in the past output the clip. It can be facilitated and it can be facilitated to deepen learning.

In FIG. 1, (1-1) the educational device 100 extracts a plurality of information inputs related to each other from the information inputs performed by the respective users of the plurality of users at any of the playback positions of the moving image. .. The reproduction position is information indicating the time point of the reproduction target in the recording time of the moving image. The playback position is represented by, for example, the elapsed time from the beginning of the moving image. Information input is to input information representing the result of a survey or thought regarding the playback position of any of the moving images into a computer owned by the user. The information input is, for example, the output of a clip.

A plurality of information inputs related to each other are a plurality of information inputs performed by a plurality of users. Multiple information inputs related to each other are judged to be multiple information inputs corresponding to the same or similar results of investigations and thoughts, and are multiple information inputs performed by multiple users for the same part of the video. Judged. The plurality of information inputs related to each other are, for example, a plurality of information inputs of the same type. The type is, for example, one of input of a search keyword related to a moving image, an input of an address related to the moving image, and an input of consideration contents related to the moving image.

Further, the plurality of information inputs related to each other may be, for example, a plurality of information inputs having the same or similar contents. The same or similar content means, for example, that the entered search keywords are the same or similar, that the entered address is the same or similar, and that the entered consideration content is the same or similar. Further, the plurality of information inputs related to each other may be, for example, a plurality of information inputs performed at a time of a predetermined length or less. In the example of FIG. 1, the educational device 100 extracts a plurality of clips 110 related to each other.

(1-2) The educational device 100 is a reproduction position in which any one of the plurality of information inputs is input from the reference position based on the reproduction position in which the information input of each of the extracted plurality of information inputs is performed. Determines the amount of video return to the previous playback position. The reference position is, for example, a reproduction position in which any one of a plurality of information inputs is performed. The reference position may be, for example, a playback position corresponding to the end of the moving image.

The moving image return amount is information for specifying a position where the moving image is started to be played back from the middle. The amount of video return is to start playing the video from the middle in order to scrape the part of the video that is presumed to be the part of the video that the past user needed for research and thinking when outputting the clip and make it playable. Indicates how far before the position is the reference position. The moving image return amount may be information that directly represents the position itself at which the moving image is started to be played back from the middle.

Here, when the user investigates or thinks about the contents of any part of the video, the easier the investigation or thinking is, the shorter the time required for the investigation or thinking tends to be, and the user's ability. The effect of high and low on the time required for research and thinking tends to be small. For this reason, if research and thinking are easy, when multiple users investigate and think about the content of the same part of the video, regardless of the level of ability of each user, it will be researched and thought. The time required tends to be short and difficult to vary.

For example, if each user of multiple users outputs a phrase heard in any part of the video as a search keyword, each user outputs the search keyword immediately after listening to the phrase. Tend to be able. For this reason, the time required for each user to investigate and think tends to be short, and it tends to be easy to organize without variation. As a result, the playback position where each user outputs the search keyword is relatively close to the playback position where each user browsed any part of the video and started researching or thinking, and did not vary. It tends to be easy to get together.

On the other hand, when a user investigates or thinks about the contents of any part of a video, the more complicated the investigation or thinking, the longer the time required for the investigation or thinking tends to be, and the user's ability. The high and low levels tend to have a greater effect on the time required for research and thinking. For this reason, if research and thinking are complicated, when multiple users investigate and think about the contents of the same part of the video, the time required for research and thinking depends on the level of ability of each user. Tends to be long and variable.

For example, when each user of multiple users considers a topic heard in any part of the video and outputs a comment, each user takes time to think after listening to the topic. It will be. Then, users who look ahead while listening to a topic, users who have prior knowledge about the topic they heard, or users who are good at thinking, compare the time required for thinking after listening to the topic. Tends to be shorter. On the other hand, users who do not have prior knowledge about the topic they have heard or who are not good at thinking tend to take a relatively long time to think after listening to the topic. For this reason, the time required for each user to investigate and think tends to be long and variable. As a result, the playback position where each user outputs a comment tends to vary relatively far from the playback position where each user browsed any part of the video and started investigating or thinking. There is.

From these facts, it is considered that the variation in the output time of multiple clips related to each other is an indicator of the difficulty of investigating or thinking about the content of any part of the video. For this reason, the time variation of the outputs of a plurality of clips that are related to each other is considered to be an index indicating the length of time required for investigating or thinking about the contents of any part of the moving image.

In the example of FIG. 1, the educational device 100 determines the length of time required for research and thinking by a past user to output a clip based on the magnitude of the variation of a plurality of clips 110 related to each other. presume. Then, the educational device 100 determines the amount of moving image returned from the reproduction position where the first clip 111 among the plurality of clips 110 is output, based on the estimated length of time.

As a result, the educational device 100 can improve the accuracy of estimating the length of time required for investigation and thinking when the past user outputs the clip, and corresponds to the estimated length of time. It is possible to determine the amount of video return to be performed. As a result, the educational device 100 is a part of the video that the subsequent user (current user) needs to investigate and think when the past user outputs the clip based on the determined video return amount. Can be accurately scraped and made reproducible.

In addition, the educational device 100 can improve the probability that subsequent users can view the part of the video required for research and thinking when the past user outputs the clip without excess or deficiency. can. For this reason, it is easy for subsequent users to understand the reason why the past user created the clip, and it is possible to avoid browsing the part that is not related to the clip of the past user. You can learn efficiently.

Specifically, the educational device 100 makes it possible for subsequent users to refer to the clips of past users when reviewing the video, and it is necessary for the past users to investigate and think when outputting the clips. It is possible to grasp the part of the video that is presumed to be the part of the video. For this reason, the educational device 100 supports the investigation and thinking about the contents of the video of the subsequent users when the subsequent users review the video, and the clip that is difficult to output when the video is first viewed. Can be easily output and the educational effect can be further improved.

In this way, the user can perform passive learning of viewing the video, can investigate and think about various things derived from the content of the video, and actively output clips. You can learn like that. Therefore, the user can deepen the learning, can perform thinking training, and can improve the ability to output according to the input.

Here, it is presumed that the educational device 100 is a part of the video required for investigation and thinking when the past user outputs the clip while the subsequent user can refer to the clip of the past user. The case where the part of the video can be grasped has been explained, but it is not limited to this. For example, the educational device 100 does not make it possible for a subsequent user to refer to a clip of a past user when reviewing the video, and a portion of the video required for investigation or thinking when a past user outputs a clip. It may be possible to grasp the part of the moving image that is presumed to be. In this case, the educational device 100 can enable the subsequent users to grasp which part of the video the past user has investigated or thought about, and the subsequent user's investigation or the investigation. Can support thinking.

Here, the case where the educational device 100 enables the subsequent users to refer to the clips of the past users when reviewing the moving image has been described, but the present invention is not limited to this. For example, the educational device 100 may make it possible for subsequent users to refer to clips of past users when viewing the moving image for the first time. Further, the educational device 100 specifies, for each clip that can be referred to, a part of the moving image that is presumed to be a part of the moving image that the past user required for investigation and thinking when outputting the made referenceable clip. May be playable.

Here, the case where the educational device 100 uses the entire moving image as an extraction source for extracting a plurality of information inputs related to each other has been described, but the present invention is not limited to this. For example, the educational device 100 may limit the extraction source for extracting a plurality of information inputs related to each other to a part of the time of the moving image.

Here, for example, which part of the video is preferable to investigate or think depends on the user. Therefore, even if the educational device 100 specifies a time when the user who intends to play the moving image in the middle does not output the clip, it may be used as an extraction source for extracting a plurality of information inputs related to each other. good.

Further, for example, the video includes the start greeting and the end greeting of the performer, and the user does not have to investigate or think about the part such as the start greeting and the end greeting of the performer. Therefore, the educational device 100 may be used as an extraction source for extracting a plurality of information inputs related to each other by specifying a time other than the start greeting and the end greeting of the performer.

Here, a case has been described in which the educational device 100 does not have to consider the attributes and abilities of the user who input the information of each of the extracted plurality of information inputs when determining the amount of video return. Not limited to. For example, when the educational device 100 determines the amount of video return, it may consider the attributes and abilities of the user who has input the information of each of the extracted plurality of information inputs. Attributes and abilities are, for example, familiarity with research and thinking, or speed of research and thinking.

Here, a case has been described in which the educational device 100 does not have to use information other than the playback position in which the information input of each of the extracted plurality of information inputs is performed when determining the moving image return amount, but the present invention is limited to this. do not have. For example, when the educational device 100 determines the amount of moving image back, it may use information other than the reproduction position where the information input of each of the extracted plurality of information inputs is performed. Specifically, the educational device 100 may detect the break position of the moving image and determine the moving image return amount based on the detected break position. The delimiter position is, for example, a reproduction position where the utterance of the performer shown in the moving image is interrupted, a reproduction position where the projection target in the moving image is switched, a reproduction position where a predetermined screen is shown in the moving image, and the like.

Here, the case where the education device 100 uses the reproduction position in which the output of the clip is fixed is used as the reproduction position in which the information is input, but the present invention is not limited to this. For example, the educational device 100 may use the reproduction position where the output of the clip is started as the reproduction position where the information is input. The playback position where the output of the clip has started is, for example, the playback position where the user has started to output the clip. Specifically, the playback position at which the output of the clip has started is the playback position at which the user has begun to operate and input a keyboard, mouse, or the like in order to output the clip.

(Example of Education System 200)
Next, an example of the education system 200 to which the education device 100 shown in FIG. 1 is applied will be described with reference to FIG.

FIG. 2 is an explanatory diagram showing an example of the education system 200. In FIG. 2, the education system 200 includes an education device 100 and a client device 201.

In the education system 200, the education device 100 and the client device 201 are connected via a wired or wireless network 210. The network 210 is, for example, a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like.

The education device 100 is a computer that stores various tables described later in FIGS. 4 to 7 and controls how the user of the client device 201 is allowed to view the moving image. The educational device 100 may store various tables described later in FIGS. 4 and 5, and may not store various tables described later in FIGS. 6 and 7.

The education device 100 transmits, for example, moving image information to the client device 201 so that the user can view the moving image. The education device 100 receives from the client device 201 the correspondence information in which the clip output by the user who viewed the moving image and the playback position of the moving image from which the clip is output are associated with each other, and the clip described later in FIG. The information table 400 is used for storage. Then, the education device 100 determines the moving image return amount using the clip information table 400 described later in FIG. 4, and based on the determined moving image return amount, how the user of the client device 201 subsequently browses the moving image. Control whether to let it. The education device 100 is, for example, a server, a PC (Personal Computer), or the like.

The client device 201 is a computer that reproduces a moving image based on an operation input from a user. The client device 201 receives the output of the clip for any of the reproduction positions of the moving image being reproduced, and stores the clip and the reproduction position of the moving image from which the clip is output in association with each other. The client device 201 transmits to the education device 100 the correspondence information in which the stored clip is associated with the reproduction position of the moving image from which the clip is output. The client device 201 is, for example, a PC, a notebook PC, a tablet terminal, a smartphone, or the like.

The educational system 200 shown in FIG. 2 may be used, for example, by an educational institution whose purpose is to make a learner view a moving image as a learning act. In this case, for example, the educational device 100 is used by an educator belonging to an educational institution. On the other hand, the client device 201 is used by a learner who browses a moving image.

Specifically, the education system 200 shown in FIG. 2 is applied to a situation in which a user is made to review a moving image after outputting a clip while viewing the moving image. Then, the education system 200 makes it possible for the user to refer to the clip of another user when reviewing the video, uses the clip of the other user as a stimulus for thinking, and investigates when the video is first viewed. The purpose is to make people investigate and think about topics that they did not think about.

Here, the case where the education device 100 determines the amount of moving image back and controls the viewing of the moving image of the user of the client device 201 has been described, but the present invention is not limited to this. For example, there may be an education device 100 that determines a moving image return amount and an education device 100 that controls viewing of a moving image of a user of the client device 201, and the two education devices 100 may cooperate with each other.

Here, the case where the education device 100 and the client device 201 are different devices has been described, but the present invention is not limited to this. For example, the education device 100 may also operate as any of the client devices 201. In the following description, the case where the education system 200 shown in FIG. 2 is used by an educational institution will be described.

Here, the case where the education device 100 transmits the moving image information to the client device 201 has been described, but the present invention is not limited to this. For example, a device different from the educational device 100 may store the moving image information, transmit the moving image information to the client device 201, and allow the user to view the moving image. In this case, the education device 100 controls a device that stores the moving image information, and controls how the user of the client device 201 is allowed to view the moving image.

(Example of hardware configuration of educational device 100)
Next, a hardware configuration example of the education device 100 included in the education system 200 shown in FIG. 2 will be described with reference to FIG.

FIG. 3 is a block diagram showing a hardware configuration example of the educational device 100. In FIG. 3, the education device 100 includes a CPU (Central Processing Unit) 301, a memory 302, a network I / F (Interface) 303, a recording medium I / F 304, and a recording medium 305. Further, each component is connected by a bus 300.

Here, the CPU 301 controls the entire education device 100. The memory 302 includes, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), a flash ROM, and the like. Specifically, for example, a flash ROM or ROM stores various programs, and RAM is used as a work area of CPU 301. The program stored in the memory 302 is loaded into the CPU 301 to cause the CPU 301 to execute the coded process. The memory 302 stores, for example, various tables described later in FIGS. 4 to 7.

The network I / F 303 is connected to the network 210 through a communication line, and is connected to another computer via the network 210. The network I / F 303 controls an internal interface with the network 210 and controls the input / output of data from another computer. For the network I / F 303, for example, a modem, a LAN adapter, or the like can be adopted.

The recording medium I / F 304 controls read / write of data to the recording medium 305 according to the control of the CPU 301. The recording medium I / F 304 is, for example, a disk drive, an SSD (Solid State Drive), a USB (Universal Serial Bus) port, or the like. The recording medium 305 is a non-volatile memory that stores data written under the control of the recording medium I / F 304. The recording medium 305 is, for example, a disk, a semiconductor memory, a USB memory, or the like. The recording medium 305 may be detachable from the educational device 100. For example, the recording medium 305 may store various tables described later in FIGS. 4 to 7 instead of the memory 302.

The educational device 100 may include, for example, a keyboard, a mouse, a display, a printer, a scanner, a microphone, a speaker, and the like, in addition to the above-mentioned components. Further, the educational device 100 may have a plurality of recording media I / F 304 and recording media 305. Further, the educational device 100 does not have to have the recording medium I / F 304 or the recording medium 305.

(Stored contents of clip information table 400)
Next, an example of the stored contents of the clip information table 400 will be described with reference to FIG. The clip information table 400 is realized, for example, by a storage area such as a memory 302 or a recording medium 305 of the educational device 100 shown in FIG.

FIG. 4 is an explanatory diagram showing an example of the stored contents of the clip information table 400. As shown in FIG. 4, the clip information table 400 has a No. , User ID, Time, type, and content. The clip information table 400 stores clip information as a record by setting information in each field for each clip.

No. The record number is set in the field of. In the user ID field, the user ID is set as information for identifying the user who output the clip. In the Time field, the elapsed time from the beginning of the moving image is set as information indicating the playback position where the clip is output. The unit of elapsed time is, for example, sec. The clip type is set in the type field. The type is, for example, a search keyword, a comment, a URL, or the like. The content of the clip is set in the content field.

(Stored contents of group information table 500)
Next, an example of the stored contents of the group information table 500 will be described with reference to FIG. The group information table 500 is realized, for example, by a storage area such as a memory 302 or a recording medium 305 of the educational device 100 shown in FIG.

FIG. 5 is an explanatory diagram showing an example of the stored contents of the group information table 500. As shown in FIG. 5, the group information table 500 includes Gr. No. It has fields of type, content, user, and Time. In the group information table 500, group information is stored as a record by setting information in each field for each clip group.

Gr. No. In the field of, the number of the clip group when the clips are grouped is set. The type of clip included in the clip group is set in the type field. The type is, for example, a search keyword, a comment, a URL, or the like. In the content field, the content of the clip included in the clip group is set.

In the user field, a user ID is set as information for identifying the user who output each clip included in the clip group. In the Time field, the elapsed time from the beginning of the moving image is set as information indicating the playback position where each clip included in the clip group is output. The unit of elapsed time is, for example, sec.

(Stored contents of user average value table 600)
Next, an example of the stored contents of the user average value table 600 will be described with reference to FIG. The user average value table 600 is realized, for example, by a storage area such as a memory 302 or a recording medium 305 of the educational device 100 shown in FIG.

FIG. 6 is an explanatory diagram showing an example of the stored contents of the user average value table 600. As shown in FIG. 6, the user average value table 600 has fields for a user ID, a rank average value, and a proficiency level. In the user average value table 600, the user average value information is stored as a record by setting information in each field for each user.

A user ID is set in the user ID field as information for identifying the user. In the rank average value field, the rank of the playback position where the clip is output is calculated for all the clips performed by the user in the past, and the average value of those ranks is set. The order of the playback position is how early the playback position of the clip of the corresponding user was among the playback positions of each clip output in the same clip group as the clip performed by the user in the past. It is a value that represents the position. For example, each rank is represented by a value in the range of 0-1 and a user whose average rank is close to 0 always outputs a clip faster than other users. Further, the user average value table 600 may store statistical values other than the average value for the rank of the reproduction position. Statistics are, for example, maximum, minimum, median, mode, and so on.

In the proficiency field, the average value of proficiency for the output of the user's clip is set. Proficiency is based on how many clips the user has output in the past. The proficiency level is, for example, a value between 0-1 and the larger the number of clips output by the user in the past, the larger the value. The proficiency level is calculated by comparison with the number of clips of the user, for example, with the proficiency level of the user having the largest number of clips among all users as 1. Further, the user average value table 600 may store statistical values other than the average value for the proficiency level. Statistics are, for example, maximum, minimum, median, mode, and so on.

(Memory contents of group average value table 700)
Next, an example of the stored contents of the group average value table 700 will be described with reference to FIG. 7. The group average value table 700 is realized, for example, by a storage area such as a memory 302 or a recording medium 305 of the educational device 100 shown in FIG.

FIG. 7 is an explanatory diagram showing an example of the stored contents of the group average value table 700. As shown in FIG. 7, the group average value table 700 is based on Gr. No. , And a field of rank average value and proficiency level average value. In the group average value table 700, the group average value information is stored as a record by setting information in each field for each clip group.

Gr. No. In the field of, the number of the clip group when the clips are grouped is set. In the rank average value field, the average value in the clip group of the average value of the rank corresponding to the user who output the clip included in the clip group is set. Further, the group average value table 700 may store statistical values other than the average value for the rank of the reproduction position. Statistics are, for example, maximum, minimum, median, mode, and so on.

In the field of proficiency level average value, the average value in the clip group of the proficiency level average value corresponding to the user who output the clip included in the clip group is set. Further, the group average value table 700 may store statistical values other than the average value for the proficiency level. Statistics are, for example, maximum, minimum, median, mode, and so on.

(Hardware configuration example of client device 201)
Next, a hardware configuration example of the client device 201 included in the education system 200 shown in FIG. 2 will be described with reference to FIG.

FIG. 8 is a block diagram showing a hardware configuration example of the client device 201. In FIG. 8, the client device 201 includes a CPU 801 and a memory 802, a network I / F 803, a recording medium I / F 804, a recording medium 805, a display 806, and an input device 807. Further, each component is connected by a bus 800.

Here, the CPU 801 controls the entire client device 201. The memory 802 includes, for example, a ROM, a RAM, a flash ROM, and the like. Specifically, for example, a flash ROM or ROM stores various programs, and RAM is used as a work area of CPU 801. The program stored in the memory 802 is loaded into the CPU 801 to cause the CPU 801 to execute the coded process.

The network I / F803 is connected to the network 210 through a communication line, and is connected to another computer via the network 210. The network I / F 803 controls the internal interface with the network 210 and controls the input / output of data from another computer. For the network I / F803, for example, a modem, a LAN adapter, or the like can be adopted.

The recording medium I / F 804 controls data read / write to the recording medium 805 according to the control of the CPU 801. The recording medium I / F804 is, for example, a disk drive, an SSD, a USB port, or the like. The recording medium 805 is a non-volatile memory that stores data written under the control of the recording medium I / F 804. The recording medium 805 is, for example, a disk, a semiconductor memory, a USB memory, or the like. The recording medium 805 may be detachable from the client device 201.

The display 806 displays data such as a cursor, an icon, a toolbox, a document, an image, and functional information. As the display 806, for example, a CRT (Cathode Ray Tube), a liquid crystal display, an organic EL (Electroluminescence) display and the like can be adopted. The input device 807 has keys for inputting characters, numbers, various instructions, and the like, and inputs data. The input device 807 may be a keyboard, a mouse, or the like, or may be a touch panel type input pad, a numeric keypad, or the like.

In addition to the above-mentioned components, the client device 201 may include, for example, a printer, a scanner, a microphone, a speaker, and the like. Further, the client device 201 may have a plurality of recording media I / F 804 and recording media 805. Further, the client device 201 may not have the recording medium I / F 804 or the recording medium 805.

(Example of functional configuration of educational device 100)
Next, an example of a functional configuration of the educational device 100 will be described with reference to FIG.

FIG. 9 is a block diagram showing a functional configuration example of the educational device 100. The education device 100 includes a storage unit 900, an acquisition unit 901, a specific unit 902, an extraction unit 903, a determination unit 904, and an output unit 905.

The storage unit 900 is realized by, for example, a storage area such as the memory 302 or the recording medium 305 shown in FIG. Hereinafter, the case where the storage unit 900 is included in the educational device 100 will be described, but the present invention is not limited to this. For example, the storage unit 900 may be included in a device different from the education device 100, and the stored contents of the storage unit 900 may be visible from the education device 100.

The acquisition unit 901 to the output unit 905 function as an example of the control unit. Specifically, the acquisition unit 901 to the output unit 905 may cause the CPU 301 to execute a program stored in a storage area such as the memory 302 or the recording medium 305 shown in FIG. 3, or the network I / F 303. To realize the function. The processing result of each functional unit is stored in a storage area such as the memory 302 or the recording medium 305 shown in FIG. 3, for example.

The storage unit 900 stores various information referred to or updated in the processing of each functional unit. The storage unit 900 may store, for example, information representing a reproduction position in which information has been input by the user. The reproduction position is information indicating the time point of the reproduction target in the recording time of the moving image. The reproduction position is expressed by, for example, the elapsed time from the beginning of the moving image to the time point of the reproduction target. In this case, the unit of the reproduction position is, for example, sec. The reproduction position may be expressed by, for example, the ratio of the elapsed time from the beginning of the moving image to the time point to be reproduced with respect to the recording time of the moving image. The unit of the reproduction position is, for example,%. The information input is, for example, the output of a clip.

Further, the storage unit 900 may store, for example, information indicating the type of information input performed by each user of the plurality of users at any of the reproduction positions of the moving image. The type is one of a search keyword related to the video, an address related to the video, and a consideration content related to the video. The playback position where the information is input is the playback position of the video being played back where the information is input. The playback position where the information is input is the playback position of the stopped video in which the information is input when the user temporarily stops the video and inputs the information. Further, the storage unit 900 may store, for example, information representing the content of information input performed at any of the playback positions of the moving image by each user of the plurality of users.

Further, the storage unit 900 may store, for example, information representing a group in which information inputs are grouped. Further, the storage unit 900 may store, for example, an index value indicating the speed at which information is input to the moving image by the user who has input the information. The index value indicating the speed is, for example, an index value indicating whether the user is a person who always responds quickly / slowly, which is obtained based on the past clip history, not only once for one clip. Specifically, the index value indicating the speed is the rank average value shown in FIG.

Further, the storage unit 900 may store, for example, an index value indicating the skill level of the user who has input the information for the moving image. The index value indicating the proficiency level is, for example, an index value obtained based on the history of past attendance / clip, not limited to one clip. Specifically, the index value representing the proficiency level is the proficiency level shown in FIG. Specifically, the storage unit 900 stores various tables shown in FIGS. 4 to 7.

The acquisition unit 901 acquires various information used for processing of each functional unit and outputs the information to each functional unit. The acquisition unit 901 may acquire various information used for processing of each functional unit from the storage unit 900 and output the information to each functional unit, for example. For example, the acquisition unit 901 may acquire various information used for processing of each functional unit from a device different from the educational device 100 and output the information to each functional unit.

The acquisition unit 901 may acquire, for example, information representing a reproduction position in which information has been input by the user. Further, the acquisition unit 901 may acquire information indicating the type of information input performed at any of the playback positions of the moving image by each user of the plurality of users, for example. Further, the acquisition unit 901 may acquire information representing the content of the information input performed at any of the playback positions of the moving image by each user of the plurality of users, for example.

The specific unit 902 specifies the time to be processed by the extraction unit 903 among the recording times of the moving image. The time to be processed by the extraction unit 903 is the time set as the extraction source for the extraction unit 903 to extract a plurality of information inputs related to each other. As a result, the specific unit 902 can reduce the processing amount of the extraction unit 903. Further, the specific unit 902 limits the time to be processed by the extraction unit 903 in consideration of which part of the video is preferable for the user who browses the video thereafter to investigate or think about. Can be done.

The specifying unit 902 specifies, for example, a time among the recording times of the moving image, which does not include the playback position where the information input of the specific user is performed. A specific user is, for example, a user who browses a video once, outputs a clip, and then reviews the video again. Specifically, the specific unit 902 specifies a time among the recording times of the moving image, which does not include a certain time before and after the playback position where the user who reviews the moving image outputs the clip. As a result, the specific unit 902 is the time when the user who reviews the video does not output the clip, and the time when it is determined that the investigation or thinking is insufficient is the time for the extraction unit 903 to process. Can be specified as.

The specifying unit 902 specifies, for example, a time among the recording times of a moving image, including a playback position in which information of at least one of a plurality of users is input. Specifically, the specific unit 902 specifies a time among the playback times of the moving image, which includes a certain time before and after the playback position where at least one user outputs the clip. As a result, the specific unit 902 excludes the time during which the user does not need to investigate or think, such as the start greeting and the end greeting of the performer of the video, from the processing target of the extraction unit 903. It can be made easier.

Here, the case where the specific unit 902 specifies the time to be processed by the extraction unit 903 has been described, but the present invention is not limited to this. For example, the entire recording time of the moving image may be processed by the extraction unit 903. In this case, the education device 100 does not have to have the specific unit 902.

The extraction unit 903 extracts a plurality of information inputs related to each other from the information inputs made by each user of the plurality of users at any of the playback positions of the moving image. The extraction unit 903, for example, extracts a plurality of clips related to each other from the clips output for any of the playback positions of the moving image by each user of the plurality of users. Multiple clips that are related to each other are, for example, multiple clips that correspond to the same or similar research or thought results, and are output by multiple users for the same part of the video. Judged.

The extraction unit 903 may extract a plurality of information inputs related to each other from the information inputs performed at the time specified by the specific unit 902. The extraction unit 903 extracts, for example, a plurality of clips related to each other from the clips output by the specific unit 902 at the specified time. As a result, the extraction unit 903 can extract a plurality of information inputs related to each other in consideration of which part of the moving image is preferable to investigate or think, and can improve the educational effect. can.

For example, the extraction unit 903 extracts a plurality of information inputs performed at a time equal to or less than a predetermined length in the recording time of the moving image as a plurality of information inputs related to each other. Specifically, the extraction unit 903 extracts a plurality of clips output at reproduction positions close to each other by a predetermined length or less as a plurality of clips related to each other. As a result, the extraction unit 903 can extract a plurality of clips determined to be a plurality of clips output for the same portion of the moving image by a plurality of users.

The extraction unit 903 extracts a plurality of information inputs having the same type, for example, based on the information representing the type of information input performed by each user at any of the playback positions of the moving image. Specifically, the extraction unit 903 refers to the clip information table 400 and extracts a plurality of clips of the same type. As a result, the extraction unit 903 can extract a plurality of clips determined to be a plurality of clips output for the same portion of the moving image by a plurality of users.

The extraction unit 903 extracts a plurality of information inputs having the same or similar contents, for example, based on the information representing the contents of the information inputs made by each user at any of the reproduction positions of the moving image. Specifically, the extraction unit 903 refers to the clip information table 400 and extracts a plurality of clips having the same or similar contents. As a result, the extraction unit 903 can extract a plurality of clips determined to be a plurality of clips output for the same portion of the moving image by a plurality of users.

The determination unit 904 determines the amount of moving image back. The moving image return amount is information for specifying a position where the moving image is started to be played back from the middle. The amount of video return is the position where the video starts playing from the middle in order to scrape the part of the video that is presumed to be the part of the video that was required for research and thinking when the past user entered information and make it playable. Indicates how far before the reference position. The reference position is, for example, a reproduction position in which any one of a plurality of information inputs is performed. The reference position may be, for example, a playback position corresponding to the end of the moving image.

The moving image return amount may be expressed by, for example, the length of time from the reference position to the position where the moving image is started to be played back from the middle. The unit of the moving image return amount is, for example, sec. The moving image return amount may be information that directly represents the position itself at which the moving image is started to be played back from the middle. The moving image return amount may be expressed by, for example, the elapsed time from the beginning of the moving image, which represents the position where the moving image is started to be played back from the middle.

The determination unit 904 is, for example, a reproduction before the reproduction position in which any one of the plurality of information inputs is input from the reference position based on the reproduction position in which the information input of each of the extracted plurality of information inputs is performed. Determine the amount of video return to the position. As a result, the determination unit 904 can scrape and replay the part of the moving image that is presumed to be the part of the moving image that was required for investigation and thinking when the past user inputs information.

The determination unit 904 determines, for example, a moving image return amount so that the larger the variation in the reproduction position where each information is input, the larger the moving image return amount. Specifically, the determination unit 904 calculates the variance of the reproduction position where the clip is output, calculates the standard deviation from the variance, and determines a predetermined multiple of the standard deviation as the moving image return amount. As a result, the determination unit 904 can improve the accuracy of estimating the part of the moving image required for investigation and thinking when the past user inputs information.

The determination unit 904 determines the amount of video return based on, for example, an index value indicating the speed at which information is input to the video by the user who has input the information. Specifically, the determination unit 904 determines the amount of video return so that the faster the information is statistically input to the video, the larger the video return amount for the user who has input each information. .. More specifically, the determination unit 904 refers to the user average value table 600, creates a group average value table 700, and the smaller the rank average value of the group average value table 700, the larger the moving image return amount. Determine the amount of video return.

As a result, the determination unit 904 considers the attributes of the past users who have input information, and improves the accuracy of estimating the part of the video required for investigation and thinking when the past users input information. Can be planned. Therefore, the determination unit 904, for example, looks at the past clip history, not only once, and detects that the user is always a fast / slow person, and for each clip group, in the clip group. The amount of video return can be fine-tuned in consideration of the bias in the reaction speed of the user group.

The determination unit 904 determines, for example, the amount of video return based on the index value indicating the skill level of the user who input the information for the video. Specifically, the determination unit 904 determines the amount of video return so that the higher the skill level of statistically inputting information for the video, the larger the amount of video return for the user who input each information. .. More specifically, the determination unit 904 refers to the user average value table 600, creates a group average value table 700, and the smaller the proficiency average value of the group average value table 700, the smaller the amount of video return. , Determine the amount of video return.

As a result, the determination unit 904 considers the attributes of the past users who have input information, and improves the accuracy of estimating the part of the video required for investigation and thinking when the past users input information. Can be planned. The determination unit 904 detects the user's proficiency level by looking at the past attendance / clip history, for example, not only once for the clip, and the proficiency level of the user group in the clip group is biased for each clip group. The amount of video return can be fine-tuned in consideration of.

The determination unit 904 detects, for example, the break position of the moving image, and determines the moving amount to be returned based on the detected break position. The delimiter position is, for example, a reproduction position where the utterance of the performer shown in the moving image is interrupted, a reproduction position where the projection target in the moving image is switched, or a reproduction position where a predetermined screen is displayed in the moving image. As a result, the decision unit 904 considers the content of the video, and the content of the video that is presumed to be the part of the video required for investigation and thinking when the past user inputs information is not cut off. , It can be made into a part where the contents are summarized.

The determination unit 904 determines the moving image return amount based on the preset playback position. The determination unit 904 determines the moving image return amount so as to return from the reference position to the reproduction position preset by, for example, the creator of the moving image or the educator using the educational device 100. As a result, the determination unit 904 makes it easy for the user to browse the part of the video that the creator of the video or the educator who uses the educational device 100 intends to make the user investigate and think. can do.

The determination unit 904 specifies a start position at which the moving image is started to be played back based on the determined moving image return amount. The determination unit 904 controls the output unit 905, and when the moving image is started to be played back from the specified start position, the determination unit 904 outputs the content of at least one of the extracted information inputs. For example, when the determination unit 904 controls the output unit 905 and causes the client device 201 to start playing the moving image from the specified start position, the determination unit 904 displays at least one of the extracted plurality of clips. As a result, the decision unit 904 can make the user refer to the contents of the information input of the past user, support the investigation and thinking about the part of the moving image, and facilitate the deepening of learning.

The determination unit 904 outputs, for example, the content of each information input having a relatively small degree of similarity to the content of the information input of a specific user who browses the video that has started playback. As a result, the determination unit 904 can make it possible for the user to refer to the content of the information input of the past user who has input the information of the content different from that of the user.

For example, when the information inputs having the same or similar contents are grouped among a plurality of information inputs, the determination unit 904 outputs the contents of one of the information inputs included in the group to which the most information inputs belong. As a result, the determination unit 904 can allow the user to refer to the content of the information input of the past user who is the majority.

When a plurality of moving image return amounts are determined, the determination unit 904 specifies a start position for starting playback of the moving image based on any of the moving image return amounts. When the determination unit 904 determines a plurality of moving image return amounts, the determination unit 904 may specify a plurality of start positions for starting playback of the moving image based on the respective moving image return amounts.

The output unit 905 transmits the moving image information to the client device 201, displays the moving image on the display 806 of the client device 201, and causes the user to view the moving image. Further, the output unit 905 controls how the user views the moving image according to the control of the determination unit 904. The output unit 905 transmits, for example, information specifying the start position specified by the determination unit 904 to the client device 201 so that the moving image can be played back in the middle from the start position specified by the determination unit 904, and sends the moving image to the user. Let me browse.

When the output unit 905 causes the user to view the moving image, the display 806 of the client device 201 may display the content of the information input for any of the playback positions of the moving image, and the user may be allowed to view the content of the information input. .. For example, when the output unit 905 plays a moving image in the middle from the start position specified by the determination unit 904, the output unit 905 transmits a clip corresponding to the part of the moving image starting from the start position specified by the determination unit 904 to the client device 201, and the user To browse the clip.

The output unit 905 may output the processing result of each functional unit. The output format is, for example, display on a display, print output to a printer, transmission to an external device by a network I / F 303, or storage in a storage area such as a memory 302 or a recording medium 305. As a result, the output unit 905 can notify the user of the processing result of each functional unit, and can support the management and operation of the educational device 100, for example, the update of the set value of the educational device 100, and the educational device. It is possible to improve the convenience of 100.

(Operation example of education system 200)
Next, an operation example of the education system 200 will be described with reference to FIGS. 10 to 22. First, with reference to FIG. 10, an example in which a user outputs a clip while viewing a moving image by using the client device 201 will be described.

FIG. 10 is an explanatory diagram showing an example in which a user outputs a clip. In FIG. 10, the education device 100 transmits the moving image information to the client device 201, displays the moving image on the display 806 of the client device 201, and causes the user to view the moving image. The client device 201 receives the moving image information, displays the moving image on the display 806, and receives the clip output by the user. The user outputs the clip while viewing the video. The client device 201 associates the content of the clip with the reproduction position of the moving image when the clip is output, and transmits the clip to the education device 100.

Specifically, the client device 201 receives the moving image information and displays the viewing screen 1000 for viewing the moving image. The browsing screen 1000 includes, for example, a moving image display field 1001. Further, the browsing screen 1000 includes, for example, a search keyword input field 1011 for inputting a search keyword. Further, the browsing screen 1000 includes, for example, a display field 1021 that displays search results using the search keyword entered in the search keyword input field 1011 and a clip button 1022 that outputs any of the searched URLs as a clip. including. Further, the browsing screen 1000 includes, for example, a comment input field 1031 for inputting opinions and considerations.

For example, the user outputs a clip by using the search keyword input field 1011, the clip button 1022, and the comment input field 1031 while viewing the moving image played in the moving image display field 1001. For example, when a search keyword is input to the search keyword input field 1011 of the client device 201, the client device 201 accepts the input search keyword as a clip. Further, the client device 201 accepts, for example, one of the URLs as a clip when the clip button 1022 corresponding to any of the URLs is clicked. Further, for example, when a comment such as an opinion or consideration is input / posted in the comment input field 1031, the client device 201 accepts the input comment as a clip.

In this way, the educational device 100 causes each user of the plurality of users to view the moving image. Then, the education device 100 uses the clip information table 400 to provide information in which the content of the clip output by each of the plurality of users is associated with the playback position of the moving image to which the clip is output. Remember. Next, moving to the description of FIG. 11, the first example in which the educational device 100 determines the moving image return amount based on the clip information table 400 when any user reviews the moving image will be described.

FIG. 11 is an explanatory diagram showing a first example of determining a moving image return amount. In FIG. 11, the educational device 100 determines the playback position where the clip 1110 of the user who reviews the moving image is output and the playback position where the clip 1100 of another user is output, based on the clip information table 400. get. In the following explanation, the user who reviews the video may be referred to as "the person". Further, in the following description, other users may be referred to as "others".

Next, the education device 100 has a section 1120 in which the clips of all the persons including the person and the other person are not longer than the predetermined time in the recording time of the moving image, and the clip of the other person is present but the clip of the person is not longer than the predetermined time. The section 1121 and the section 1122 with the clip of the person himself / herself are specified. In the following description, the section 1120 in which all the clips are not clipped for a predetermined time or more may be referred to as "the section without all clips 1120". In the following description, the section 1121 in which the clip of the person is present but the clip of the person is not present for a predetermined time or more may be referred to as "the section without the clip of the person 1121".

Here, it is judged that there is a high possibility that the non-clip section 1120 for all members includes a section in which the person himself / herself does not need to investigate or think, such as a section for greetings of the performers of the video. Further, it is judged that the section 1121 without a clip of the person is likely to include a section in which another person has investigated or thought, and it is judged that it is preferable that the person conducts the investigation or thought. It is determined that the section 1122 with the clip of the person is likely to include the section in which the person investigated or thought.

Therefore, the education device 100 sets the clipless section 1121 of the person as the processing target section, and extracts a plurality of clips related to each other from the clipless section 1121 of the person. Specifically, the educational device 100 extracts a clip 1100 of another person showing the same search keyword "Vygotsky".

Next, the educational device 100 calculates the variance σ ^ 2 of the reproduction position where the clip 1100 of another person is output, calculates the standard deviation σ from the variance σ ^ 2, and sets the moving image return amount to a value based on σ. decide. Specifically, the moving image return amount is determined to be 3σ. Then, the education device 100 specifies a reproduction position 3σ before the moving image return amount 3σ from the first clip 1101 among the clips 1100 of another person as the review reproduction position 1130.

After that, the educational device 100 replays the moving image from the review reproduction position 1130 in the middle and makes the person browse the clip while referring to the clip of another person. As a result, the person himself / herself can easily pick up and view the part of the video required for research and thinking in order for others to output the clip, and can learn efficiently. Here, the educational device 100 may use, for example, a clip that is a majority as a clip of another person that can be referred to. Further, the educational device 100 may use, for example, a clip of another person whose contents are not similar to the clip of the person himself / herself as a clip of another person to be referred to.

Here, the case where the educational device 100 extracts a plurality of clips related to each other from the clipless section 1121 of the person himself / herself has been described, but the present invention is not limited to this. For example, the educational device 100 may extract a plurality of clips related to each other from the clipped section 1122 of the person himself / herself. In this case, the educational device 100 can refer to, for example, a clip of another person whose content is not similar to that of the person himself / herself, and can easily learn a multifaceted view of the content of the moving image. Next, the description shifts to FIGS. 12 and 13, and how the moving image return amount changes according to the extracted clip will be specifically described.

12 and 13 are explanatory views showing an example of the determined moving image return amount. In the example of FIG. 12, the plurality of clips 1200 of the same group extracted by the educational device 100 have less variation in the reproduction position from which the clips of others are output, as compared with the example of FIG. 13 described later. Here, the fact that the variation in the playback position at which the clip is output is relatively small indicates that the variation in the time required for investigation and thinking to output the clip is relatively small, and the clip is output. It is judged that it indicates that the investigation and thinking of the were relatively easy. Therefore, it is judged that the relatively small variation in the reproduction position indicates that the time required for investigation and thinking for output is relatively short.

Therefore, in the example of FIG. 12, the moving image remand amount 3σ is smaller than that of the example of FIG. 13 described later, and the review reproduction position 1210 is closer to the reproduction position where the plurality of clips 1200 are output. As a result, the educational device 100 aims to reduce the probability of reviewing parts other than the video part required for investigation and thinking in order to output the plurality of clips 1200 in order to grasp the contents of the plurality of clips 1200. You can learn efficiently. Therefore, the user can prevent browsing the part having a small relevance to the clip of the past user, and can learn efficiently. Next, the description proceeds to FIG.

In the example of FIG. 13, the plurality of clips 1200 of the same group extracted by the educational device 100 have a large variation in the reproduction position where the clips of others are output as compared with the example of FIG. Here, the fact that the variation in the playback position at which the clip is output is relatively large indicates that the variation in the time required for investigation and thinking to output the clip is relatively large, and the clip is output. It is judged that the investigation and thinking of the above were relatively complicated. Therefore, it is judged that the relatively large variation in the reproduction position indicates that the time required for investigation and thinking for output is relatively long.

Therefore, in the example of FIG. 13, the moving image remand amount 3σ is larger than that of the example of FIG. 12, and the review reproduction position 1310 is far from the reproduction position where the plurality of clips 1300 are output. As a result, the educational device 100 can easily review the video parts required for research and thinking in order to output the plurality of clips 1300 in order to grasp the contents of the plurality of clips 1300, and can be efficiently reviewed. You can learn. Therefore, the user can easily understand the reason why the past user created the clip, and can learn efficiently. Next, moving to the description of FIGS. 14 and 15, a specific example in which the educational device 100 refers to the clip information table 400 and determines the amount of moving motion back will be described.

14 and 15 are explanatory views showing a specific example of determining the amount of moving motion back. In FIG. 14, the educational device 100 refers to the clip information table 400 and creates a clip group. In the example of FIG. 14, the educational device 100 groups clips having the same type and content. The educational device 100 is, for example, Gr. No. As a clip group of 1, a clip group including a clip of the type "search keyword" and the content "Vygotsky" is created and stored using the group information table 500. Gr. No. The clip group 1 is the clip group 1500 described later in FIG.

Further, the educational device 100 may treat contents having notational fluctuations as the same contents, such as "Vygotsky" and "Vygotsky". Further, the educational device 100 may create a clip group including clips of the type "URL" and having the same contents. Further, the educational device 100 may create a clip group including clips of the type "comment" and having the same or similar contents. For example, if the cosine similarity between clips is equal to or higher than a threshold value, the education device 100 treats that the contents between clips are similar. Next, the process proceeds to the description of FIG.

In FIG. 15, the educational device 100 refers to the group information table 500, and has a standard deviation “1. 9 ”is calculated. The educational device 100 determines "5.7", which is three times the standard deviation, as the video return amount, and subtracts "5.7" from the elapsed time "120" indicating the playback position where the first clip is output to obtain a decimal point. Is truncated to specify the elapsed time "114" that represents the review reproduction position 1510. Next, shifting to the description of FIG. 16, when a plurality of clip groups are created and a plurality of review reproduction positions are specified, an example of selecting the review reproduction position will be described.

FIG. 16 is an explanatory diagram showing an example of selecting a review reproduction position. In FIG. 16, since a plurality of clip groups are created in the educational device 100, the review reproduction position can be specified for each clip group. In this case, the education device 100 specifies the review reproduction positions 1601 to 1603 for each clip group and stores them as candidates for the review reproduction positions.

On the other hand, the education device 100 may determine, for example, the review reproduction position 1601 near the beginning of the moving image as the review reproduction position actually starting from the intermediate reproduction. Thereby, the educational device 100 can enable the user to browse from the review reproduction position 1601 through the review reproduction position 1602 and the review reproduction position 1603. As a result, the user can easily view the part of the video required for research and thinking in order to output the clip of each clip group, and can learn efficiently.

Further, the education device 100 may determine, for example, the review reproduction positions 1601 to 1603 as the review reproduction positions actually starting from the intermediate reproduction. Then, the educational device 100 may selectively display the review reproduction positions 1601 to 1603 corresponding to the clip group for each clip group. As a result, the user can easily pick up and browse the part of the video required for research and thinking in order to output the clip of each clip group, and can learn efficiently.

Further, the education device 100 may determine, for example, a review reproduction position corresponding to a clip group in which the number of clips included in the clip group is a predetermined value or more as a review reproduction position actually starting from intermediate reproduction. .. Further, the educational device 100 may determine, for example, the review reproduction position corresponding to the clip group including the largest number of clips as the review reproduction position actually starting from the intermediate reproduction. Next, the explanation shifts to FIG. 17, and another example of determining the moving image return amount will be described.

FIG. 17 is an explanatory diagram showing a second example of determining the amount of moving motion back. In FIG. 17, the educational device 100 determines the amount of moving image back in consideration of the attributes of the user. In the example of FIG. 17, the attribute of the user is the speed of investigation and thinking of the user. The educational device 100 uses the rank average value as an index of the user's survey and the speed of thinking.

The education device 100 refers to the clip information table 400, calculates the rank average value for each user, and stores it using the user average value table 600. The rank is represented by a value of 0 to 1, for example. Specifically, the ranking is represented by a value obtained by dividing the number assigned to the user's clip in the order of the earliest playback position in which the clip in the clip group 1700 is output by the total number of clips in the clip group 1700. To. The ranking average value is the calculation of the average value of the clip rankings for each clip that the user has performed in the past. As a result, the educational device 100 can grasp the tendency that the corresponding user always conducts the survey or thinking relatively quickly / slowly, and the time required for the survey or thinking is short / long.

Here, when the number of clip groups 1700 is not yet sufficient, there may be a bias in which a relatively large number of clips output by the user, who tend to always have a short time for research and thinking, are included. In this case, at present, the dispersion of the reproduction position of the clip of the clip group 1700 tends to be small, the moving image return amount tends to be small, and the review reproduction position tends to be close to the clip. As a result, the educational device 100 may estimate the part of the video required for research and thinking to output the clip of the clip group 1700 to be shorter than the part required for research and thinking by many users. Conceivable.

In the future, as the number of users watching videos increases and the number of clips in the clip group 1700 becomes large enough, clips of users who take a relatively long time to investigate and think will also be included and distributed. The value of is expected to increase. Therefore, it is preferable that the educational device 100 determines the amount of moving motion back in consideration of the bias of the speed of investigation / thinking of the users of the corresponding clip group.

The educational device 100 refers to the user average value table 600, calculates the average value of the rank average values of the users who output each clip of the clip group 1700 based on the rank average value of each user, and calculates the group. Store using the average value table 700. The smaller the rank average of the group mean table 700, the more the clip group 1700 is biased towards the user's clip, which tends to take less time to investigate and think. Then, the educational device 100 makes the moving image return amount larger as the rank average value of the group average value table 700 becomes smaller.

For example, if the rank average value of the group average value table 700 is 0 or more and less than 0.3, the educational apparatus 100 sets the moving image return amount to 3σ + β. Further, in the education device 100, for example, if the rank average value of the group average value table 700 is 0.3 or more and less than 0.7, the moving image return amount is set to 3σ. Further, in the education device 100, for example, if the rank average value of the group average value table 700 is 0.7 or more and 1.0 or less, the moving image return amount is set to 3σ-β.

In the example of FIG. 17, the educational device 100 sets the video return amount to 3σ + β, and sets the review playback position 1720 before the review playback position 1710 when the video return amount starting from the playback position of the clip 1701 is 3σ. Can be decided.

As a result, in the future, the number of users who use clips included in the clip group 1700 will increase in the educational device 100, and users who tend to spend less time on surveys and thoughts will also tend to spend more time on surveys and thoughts. A user can also determine the corresponding video return amount when the clip is output. As a result, the educational device 100 can improve the probability that the user can view the part of the video required for research and thinking when the past user outputs the clip, without excess or deficiency. .. Next, the explanation shifts to FIG. 18, and another example of determining the moving image return amount will be described.

FIG. 18 is an explanatory diagram showing a third example of determining the amount of moving motion back. In FIG. 18, the educational device 100 determines the amount of moving image back in consideration of the attributes of the user. In the example of FIG. 18, the user attribute is the user's familiarity with clip creation. The educational device 100 uses the proficiency level as an index of familiarity with clip creation.

The education device 100 refers to the clip information table 400, calculates the proficiency level for each user, and stores it using the user average value table 600. The proficiency level is represented by a value of 0 to 1, for example. Specifically, the proficiency level is expressed so that the value approaches 1 as the number of videos viewed by the user increases or the number of clips output by the user increases. Thereby, the educational device 100 can grasp which user is relatively accustomed to creating the clip and tends to take a short time for investigation and thinking.

Here, when the number of clip groups 1800 is not yet sufficient, there may be a bias that a relatively large number of clips output by a user who is accustomed to clips are included. In this case, at present, the dispersion of the reproduction position of the clip of the clip group 1800 tends to be small, the moving image return amount tends to be small, and the review reproduction position tends to be close to the clip. As a result, the educational device 100 may estimate the part of the video required for research and thinking to output the clip of the clip group 1800 to be shorter than the part required for research and thinking by many users. Conceivable. In the future, as the number of users watching videos increases and the number of clips in the clip group 1800 becomes large enough, the clips of users who are not accustomed to clips will also be included, and the value of variance will increase. It is expected to go. Therefore, it is preferable that the educational device 100 determines the amount of moving motion back in consideration of the bias of the proficiency level of the users of the corresponding clip group.

The educational device 100 refers to the user average value table 600, calculates the average value of the proficiency level of the users who output each clip of the clip group 1800 based on the proficiency level of each user, and calculates the group average value. Store using the table 700. The larger the proficiency value of the group average value table 700, the more the clip group 1800 is biased toward the clip of the user who is proficient in the clip. Then, the educational device 100 makes the moving image return amount larger as the proficiency level average value of the group average value table 700 is larger.

For example, if the proficiency level average value of the group average value table 700 is 0 or more and less than 0.3, the educational device 100 sets the moving image return amount to 3σ −γ. Further, in the educational device 100, for example, if the proficiency level average value of the group average value table 700 is 0.3 or more and less than 0.7, the moving image return amount is set to 3σ. Further, in the educational device 100, for example, if the proficiency level average value of the group average value table 700 is 0.7 or more and less than 1.0, the moving image return amount is set to 3σ + γ.

In the example of FIG. 18, the educational device 100 sets the moving image return amount to 3σ + γ, and sets the reviewing reproduction position 1820 before the reviewing reproduction position 1810 when the moving image returning amount starting from the reproduction position of the clip 1801 is 3σ. Can be decided.

As a result, in the future, the educational device 100 can be used for both users who tend to spend less time on surveys and thoughts and users who tend to spend more time on surveys and thoughts when they output clips. The amount of return can be determined. As a result, the educational device 100 can improve the probability that the user can view the part of the video required for research and thinking when the past user outputs the clip, without excess or deficiency. .. Next, the explanation shifts to FIG. 19, and another example of determining the moving image return amount will be described.

FIG. 19 is an explanatory diagram showing a fourth example of determining the amount of moving motion back. In FIG. 19, the educational device 100 determines the moving image return amount in consideration of the moving image dividing position, and determines the review playback position. The delimiter position is, for example, a reproduction position where the utterance of the performer shown in the moving image is interrupted, a reproduction position where the projection target in the moving image is switched, a reproduction position where a predetermined screen is shown in the moving image, and the like. Here, as a result of the educational device 100 setting the moving image return amount to 3σ, the reviewed playback position may be the playback position in the middle of the talk of the performer of the moving image. In this case, the user may have difficulty understanding the topic because he / she has not heard from the beginning of the conversation.

Therefore, the education device 100 performs image analysis or voice analysis of the moving image, and detects a playback position in which the performer's mouth is closed or a playback position in which the performer's mouth is not heard as a dividing position. In the example of FIG. 19, the education device 100 detects the reproduction position of the image 1921 as the division position among the reproduction positions of the images 1921 to 1923. Further, the educational device 100 determines the moving image return amount 3σ based on the clip group 1900, and determines the review reproduction position 1910 3σ before the clip 1901 as the starting point. Then, the educational device 100 determines a new review reproduction position 1930 as a division position before the review reproduction position 1910 and close to the review reproduction position 1910. As a result, the educational device 100 can make it easier for the user to browse the part of the moving image required for research and thinking when the past user outputs the clip.

In the above, the case where the educational device 100 determines the moving image return amount based on the clip group and determines the review playback position is described, but the present invention is not limited to this. For example, the educational device 100 may determine the moving image return amount so as to return from the reference position to the playback position preset by the creator of the moving image, the educator who uses the educational device 100, or the like. .. As a result, the educational device 100 makes it easy for the user to browse the part of the video that the creator of the video, the educator who uses the educational device 100, etc. intends to make the user investigate and think. can do.

At this time, has the educational device 100 already output a clip that is the same as or similar to a clip preset by the creator of the moving image, the educator who uses the educational device 100, or the like, and the user who reviews the moving image? It may be determined whether or not. Then, the education device 100 determines the moving image return amount so as to return from the reference position to the preset playback position when the output has not been completed. As a result, in the educational device 100, the user investigates and thinks about the part of the moving image that the creator of the moving image or the educator who uses the educational device 100 wants the user to investigate and think. If this is done, the burden on the user can be reduced.

At this time, the educational device 100 may allow the user who reviews the moving image to refer to the content of the clip preset by the creator of the moving image, the educator who uses the educational device 100, or the like. Further, the educational device 100 does not require the user who reviews the moving image to refer to the content of the clip preset by the creator of the moving image, the educator who uses the educational device 100, or the like. Next, the description shifts to FIG. 20, and an example in which the client device 201 displays the moving image when the user reviews the moving image will be described.

FIG. 20 is an explanatory diagram showing an example of displaying a moving image. In FIG. 20, the education device 100 transmits the moving image information and the review reproduction position to the client device 201, displays the moving image on the display 806 of the client device 201, and causes the user to view the moving image. The client device 201 receives the moving image information and the reviewing reproduction position, displays the moving image on the display 806 so that the moving image can be reproduced in the middle from the reviewing reproduction position, and receives the clip output by the user. The user outputs the clip while viewing the video. The client device 201 associates the content of the clip with the reproduction position of the moving image when the clip is output, and transmits the clip to the education device 100.

Specifically, the client device 201 displays a browsing screen 2000 for reviewing a moving image. The browsing screen 2000 includes, for example, a moving image display field 2010. Further, the browsing screen 2000 includes, for example, a seek bar 2020 for designating a reproduction position of a moving image. Further, the browsing screen 2000 includes, for example, a display field 2030 for displaying clips output in the past by a user who reviews a moving image. Further, the browsing screen 2000 includes, for example, a display field 2040 for displaying clips output by other users in the past. Further, the browsing screen 2000 includes, for example, a box 2050 for designating whether or not to display a clip in the display field 2040 when reviewing a moving image.

The user, for example, checks "Display" in the box 2050 and clicks the "OK button". When the "OK button" is clicked, the client device 201 displays the review button 2021 indicating the review playback position on the seek bar 2020, and reproduces the moving image. Further, the client device 201 displays the clip in the display field 2040.

After that, the user clicks the review button 2021. When the review button 2021 is clicked, the client device 201 intermediately reproduces the moving image from the review playback position represented by the review button 2021. As a result, the client device 201 makes it possible to refer to the clip of another user when reviewing the moving image, and the moving image is presumed to be a part of the moving image required for investigation and thinking when the other user outputs the clip. The part of can be made playable in the middle.

Therefore, the user can easily investigate and think about the contents of the moving image, can easily output the clip, and can learn efficiently. On the other hand, if you check "Do not display" in the box 2050 and click the "OK button", only the review button 2021 indicating the review playback position and the display field 2030 of your own clip will be displayed, and the display field 2040 will not be displayed. You may do it. Next, the explanation shifts to FIG. 21, and an example in which a user who reviews a moving image refers to a clip of another user and investigates and thinks about the contents of the moving image will be described.

FIG. 21 is an explanatory diagram showing an example of referring to a clip of another user. In FIG. 21, the user can receive the content of the moving image that is played in the middle from the review reproduction position and the clip of another user about the content of the moving image as input. For example, the user scrapes and browses the portion of the elapsed time t = 2:00 to 4:00 from the beginning of the video, and other users output the video based on the portion of t = 2:00 to 4:00. You can browse the clips that are judged to have been dropped. As a result, the educational device 100 can make it easier for the user to output a new clip as compared with the case where the user conducts a survey or thinking alone.

For example, a user browses only a part of t = 3:00 to 4:00, which often occurs in a case where the video playback position is uniformly returned for a predetermined time. Since there is no such thing, you can browse the part of the video that is the basis of the clip without excess or deficiency. Therefore, the user can easily understand what kind of reason the clip was output by other users, learn a multifaceted view of the content of the video, and utilize it for his / her own learning. Then, the user can easily perform new research and thinking, and can easily output a new clip. In this way, the educational device 100 can enhance the educational effect of the moving image. Next, the description proceeds to FIG. 22.

FIG. 22 is an explanatory diagram showing another example of displaying a moving image. In FIG. 22, unlike FIG. 20, the client device 201 may display a viewing screen 2200 for reviewing a moving image, and may display the moving image and a clip superimposed on the viewing screen 2200.

Here, the case where the educational device 100 determines 3σ as the moving image return amount has been described, but the present invention is not limited to this. For example, the educational device 100 may determine 3σ + α as the moving image return amount. Further, for example, the educational device 100 may determine σ or 2σ as the moving image return amount.

(Overall processing procedure)
Next, an example of the overall processing procedure executed by the educational device 100 will be described with reference to FIG. 23. The entire processing is realized by, for example, the CPU 301 shown in FIG. 3, a storage area such as a memory 302 or a recording medium 305, and a network I / F 303.

FIG. 23 is a flowchart showing an example of the overall processing procedure. In FIG. 23, first, the education device 100 detects a processing target section for a moving image viewed by a user (step S2301).

Next, the education device 100 detects a clip of another user in the detected processing target section (step S2302). Then, the education device 100 groups the detected clips of other users and identifies one or more display candidate clips (step S2303). The display candidate clip group corresponds to the clip group described above.

Next, the educational device 100 selects one or more display candidate clips (step S2304). Then, the education device 100 calculates the variance of the clip execution time in the selected display candidate clip group, and calculates the standard deviation (step S2305).

Next, the education device 100 calculates the moving image return amount based on the calculated standard deviation, and identifies the candidate of the review reproduction position based on the calculated moving image return amount (step S2306). Then, the education device 100 determines whether or not all the display candidate clips have been selected (step S2307).

Here, if there is an unselected display candidate clip group (step S2307: No), the education device 100 returns to the process of step S2304. On the other hand, when all the display candidate clips are selected (step S2307: Yes), the education device 100 shifts to the process of step S2308.

In step S2308, the educational device 100 determines a review reproduction position to be browsed by the user based on one or more specified candidates for the review reproduction position (step S2308). Then, the education device 100 ends the whole processing. As a result, the educational device 100 can enable subsequent users to scrape and reproduce the portion of the moving image required for investigation and thinking when the past user inputs information.

As described above, according to the educational device 100, among the information inputs performed by the respective users of the plurality of users at any of the playback positions of the moving image, a plurality of information inputs related to each other are extracted. Can be done. According to the educational device 100, reproduction before the reproduction position in which any one of the plurality of information inputs is performed from the reference position based on the reproduction position in which the information input of each of the extracted plurality of information inputs is performed. The amount of video return to the position can be determined. As a result, the educational device 100 can improve the accuracy of estimating the length of time required for investigation and thinking when the past user inputs information, and corresponds to the estimated length of time. The amount of video return can be determined. As a result, the educational device 100 can scrape and reproduce the part of the video required for the investigation and thinking when the past user inputs information, based on the determined video return amount. Can be done.

According to the educational device 100, the moving image return amount can be determined so that the moving image return amount becomes larger as the variation in the reproduction position where each information input is made is larger. As a result, the educational device 100 can improve the accuracy of estimating the length of time required for investigation and thinking when a past user inputs information.

According to the educational device 100, the time during which the video recording time does not include the playback position where the information input of the specific user is performed is specified, and the information input performed at the specified time is related to each other. Multiple information inputs can be extracted. As a result, the educational device 100 reduces the amount of extraction processing, and limits the time to be extracted in consideration of which part of the moving image is preferable for a specific user to investigate or think about. can do.

According to the educational device 100, among the recording times of the moving image, the time including the playback position where the information input of at least one of the plurality of users is performed is specified, and the information input performed at the specified time. Of these, a plurality of information inputs related to each other can be extracted. As a result, the education device 100 can reduce the amount of extraction processing.

According to the educational device 100, it is possible to extract a plurality of information inputs performed at a time equal to or less than a predetermined length in the recording time of the moving image. As a result, the educational device 100 can extract a plurality of information inputs that are determined to be time-related.

According to the educational device 100, it is possible to extract a plurality of information inputs having the same type based on the information representing the type of information input performed by each user at any of the reproduction positions of the moving image. As a result, the educational device 100 can extract a plurality of information inputs that are determined to be content-related.

According to the educational device 100, any one of a search keyword related to the moving image, an address related to the moving image, and a consideration content related to the moving image can be used as the type. As a result, the educational device 100 can use a plurality of types properly.

According to the educational device 100, it is possible to extract a plurality of information inputs having the same or similar contents based on the information representing the contents of the information inputs performed by each user at any of the playback positions of the moving image. .. As a result, the educational device 100 can extract a plurality of information inputs that are determined to be content-related.

According to the educational device 100, the amount of video return can be determined based on an index value indicating the speed at which information is input to the video by the user who has input the information. As a result, the educational device 100 considers the attributes of the past users who have input the information, and improves the accuracy of estimating the part of the video required for the investigation and thinking when the past users input the information. Can be planned.

According to the educational device 100, it is possible to determine the video return amount so that the video return amount increases as the speed at which information is statistically input to the video increases for the user who has input each information. .. As a result, the educational device 100 can improve the accuracy of estimating the part of the moving image required for investigation and thinking when the past user inputs information.

According to the educational device 100, the amount of video return can be determined based on the index value indicating the skill level of the user who input the information for the video. As a result, the educational device 100 considers the attributes of the past users who have input the information, and improves the accuracy of estimating the part of the video required for the investigation and thinking when the past users input the information. Can be planned.

According to the educational device 100, it is possible to determine the video return amount so that the video return amount increases as the skill level of statistically inputting information to the video increases for the user who has input each information. .. As a result, the educational device 100 can improve the accuracy of estimating the part of the moving image required for investigation and thinking when the past user inputs information.

According to the educational device 100, it is possible to detect the break position of the moving image and determine the amount of returning the moving image based on the detected break position. As a result, the educational device 100 considers the content of the video, and the content of the video, which is presumed to be the part of the video required for investigation and thinking when the past user inputs information, is not cut off. , It can be made into a part where the contents are summarized.

According to the educational device 100, as the delimiter position, a reproduction position in which the utterance of the performer shown in the moving image is interrupted, a reproduction position in which the projection target in the moving image is switched, a reproduction position in which a predetermined screen is displayed in the moving image, and the like can be used. As a result, the educational device 100 can detect various break positions.

According to the educational device 100, when the start position for starting the playback of the video is specified based on the determined video return amount and the video is started to be played from the specified start position, at least one of the plurality of extracted information inputs is used. The contents of information input can be output. As a result, the educational device 100 can refer to the content of the information input and utilize it for the learning of the user.

According to the educational device 100, among the contents of each information input, the contents having a relatively small degree of similarity to the contents of the information input of a specific user who browses the video that has started to be played back can be output. As a result, the educational device 100 can refer to the information input contents of other users who have conducted different surveys and thoughts and can utilize them for the learning of the users.

According to the educational device 100, when information inputs having the same or similar contents are grouped among a plurality of information inputs, the contents of any of the information inputs included in the group to which the most information inputs belong is output. Can be done. As a result, the educational device 100 can refer to the information input contents of other users who are the majority and utilize them for the learning of the users.

According to the educational device 100, when a plurality of moving image return amounts are determined, it is possible to specify the start position at which the moving image is started to be played back based on any of the moving image returning amounts. As a result, the educational device 100 can specify one start position for starting to play the moving image even if there are a plurality of returning amounts of the moving image, and the user selects the starting position for starting playing the moving image. The amount can be reduced.

According to the educational device 100, the moving image return amount can be determined based on the preset playback position. As a result, the educational device 100 makes it easy for the user to browse the part of the video that the creator of the video, the educator who uses the educational device 100, etc. intends to make the user investigate and think. can do.

The educational support method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. The educational support program described in this embodiment is recorded on a computer-readable recording medium such as a hard disk, flexible disk, CD-ROM, MO, or DVD, and is executed by being read from the recording medium by the computer. Further, the education support program described in this embodiment may be distributed via a network such as the Internet.

The following additional notes are further disclosed with respect to the above-described embodiment.

(Appendix 1) The computer
From the information inputs made by each user of the plurality of users at any of the playback positions of the video, a plurality of information inputs related to each other are extracted.
Based on the playback position where each of the extracted information inputs was performed, the moving image is returned from the reference position to the playback position before the playback position where any of the information inputs of the plurality of information inputs was performed. Determine the amount,
An educational support method characterized by performing processing.

(Supplementary note 2) The additional note that the determination process is characterized in that the moving image return amount is determined so that the larger the variation in the reproduction position where the respective information is input is, the larger the moving image return amount is. The educational support method described in 1.

(Appendix 3) The extraction process specifies a time among the recording times of the moving image that does not include the playback position where the information input of a specific user is performed, and among the information input performed at the specified time. , The educational support method according to Appendix 1 or 2, wherein a plurality of information inputs related to each other are extracted.

(Appendix 4) In the extraction process, the time including the playback position in which the information input of at least one of the plurality of users is performed is specified in the recording time of the moving image, and the time is set to the specified time. The educational support method according to any one of Supplementary note 1 to 3, wherein a plurality of information inputs related to each other are extracted from the information inputs performed.

(Appendix 5) The extraction process is any one of the appendices 1 to 4, characterized in that, among the recording times of the moving image, a plurality of information inputs performed at a time equal to or less than a predetermined length are extracted. Educational support method described in.

(Appendix 6) The extraction process extracts a plurality of information inputs having the same type based on the information indicating the type of information input performed by each user at any of the playback positions of the moving image. The educational support method described in any one of the appendices 1 to 5, characterized in that.

(Appendix 7) The educational support according to Appendix 6, wherein the type is one of a search keyword related to the video, an address related to the video, and consideration content related to the video. Method.

(Appendix 8) In the extraction process, a plurality of information inputs having the same or similar contents are input based on the information representing the contents of the information inputs performed by the respective users at any of the playback positions of the moving images. The educational support method according to any one of the appendices 1 to 7, characterized in that it is extracted.

(Appendix 9) The determination process is characterized in that the moving image return amount is determined based on an index value indicating the speed at which information is input to the moving image of the user who has input the information. The educational support method described in any one of the appendices 1 to 8.

(Appendix 10) In the process of determining, the moving image return amount increases as the speed at which information is statistically input to the moving image increases for the user who has input the information. The educational support method according to Appendix 9, which is characterized by determining.

(Appendix 11) The determination process is characterized in that the moving image return amount is determined based on an index value indicating the skill level of the user who has input the information for the moving image. The educational support method described in any one of the appendices 1 to 10.

(Appendix 12) In the process of determining, the moving image return amount increases as the skill level of statistically inputting information to the moving image increases for the user who has input the information. The educational support method according to Appendix 11, wherein the method is determined.

(Appendix 13) The computer
Detect the break position of the moving image, execute the process,
The educational support method according to any one of Supplementary note 1 to 12, wherein the determination process determines the moving image return amount based on the detected break position.

(Appendix 14) The educational support method according to Appendix 13, wherein the delimiter position is a reproduction position in which the utterance of the performer shown in the moving image is interrupted.

(Appendix 15) The educational support method according to Appendix 13 or 14, wherein the delimiter position is a reproduction position at which the projection target in the moving image is switched.

(Appendix 16) The educational support method according to any one of the appendices 13 to 15, wherein the delimiter position is a reproduction position in which a predetermined screen is displayed on the moving image.

(Appendix 17) The computer
Based on the determined video return amount, the start position at which the video starts to be played is specified.
When the moving image is started to be played back from the specified start position, any one of Supplementary note 1 to 16 characterized in that the process of outputting the content of at least one of the extracted information inputs is executed. The educational support method described in one.

(Appendix 18) The output process outputs, among the contents of each of the above-mentioned information inputs, the contents having a relatively small degree of similarity to the contents of the information input of a specific user who browses the video that has started playback. The educational support method according to Appendix 17, which is characterized by the above.

(Appendix 19) The output process is the content of any of the information inputs included in the group to which the most information inputs belong when the information inputs having the same or similar contents are grouped among the plurality of information inputs. The educational support method according to the appendix 17 or 18, characterized in that the above is output.

(Supplementary Note 20) The additional note is that, when a plurality of the moving image return amounts are determined, the specifying process specifies a start position at which the moving image is started to be played back based on any one of the moving image returning amounts. The educational support method described in any one of 17 to 19.

(Supplementary Note 21) The educational support method according to any one of Supplementary note 1 to 20, wherein the determination process determines the moving image return amount based on a preset playback position.

(Appendix 22) To the computer
From the information inputs made by each user of the plurality of users at any of the playback positions of the video, a plurality of information inputs related to each other are extracted.
Based on the playback position where each of the extracted information inputs was performed, the moving image is returned from the reference position to the playback position before the playback position where any of the information inputs of the plurality of information inputs was performed. Determine the amount,
An educational support program characterized by executing processing.

(Appendix 23) From the information inputs performed by each user of the plurality of users at any of the playback positions of the moving image, a plurality of information inputs related to each other are extracted.
Based on the playback position where each of the extracted information inputs was performed, the moving image is returned from the reference position to the playback position before the playback position where any of the information inputs of the plurality of information inputs was performed. Determine the amount,
An educational device characterized by having a control unit.

100 Educational equipment 110,111,1100,1101,1110,1200,1300,1701,1801,1901 Clip 200 Educational system 201 Client equipment 210 Network 300,800 Bus 301,801 CPU
302,802 Memory 303,803 Network I / F
304,804 Recording medium I / F
305,805 Recording medium 400 Clip information table 500 Group information table 600 User average value table 700 Group average value table 806 Display 807 Input device 900 Storage unit 901 Acquisition unit 902 Specific unit 903 Extraction unit 904 Determination unit 905 Output unit 1000, 2000, 2200 Browsing screen 1001, 1021, 2010, 2030, 2040 Display field 1011 Search keyword input field 1022 Clip button 1031 Comment input field 1120 to 1122 Section 1130, 1210, 1310, 1510, 1601 to 1603, 1710, 1720, 1810, 1820, 1910, 1930 Playback position 1500, 1700, 1800, 1900 Clip group 1921 to 1923 Image 2020 Seek bar 2021 Review button 2030 Box

Claims (16)

The computer
From the information inputs made by each user of the past multiple users at any of the playback positions of the video, multiple information inputs related to each other are extracted.
Based on the playback position where each of the extracted information inputs was performed, the moving image is returned from the reference position to the playback position before the playback position where any of the information inputs of the plurality of information inputs was performed. Determine the amount,
An educational support method characterized by performing processing. The process according to claim 1 is characterized in that the moving image return amount is determined so that the moving image return amount becomes larger as the variation in the reproduction position where each of the information inputs is made becomes larger. Education support method. The extraction process identifies the time during which the recording time of the moving image does not include the playback position where the information input of the current specific user is performed, and among the information input performed at the specified time, each other. The educational support method according to claim 1 or 2, wherein a plurality of related information inputs are extracted. The extraction process specifies a time among the recording times of the moving image, including a playback position in which information of at least one of the plurality of users is input, and information performed at the specified time. The educational support method according to any one of claims 1 to 3, wherein a plurality of information inputs related to each other are extracted from the inputs. The extraction process extracts a plurality of information inputs having the same type based on the information representing the type of information input performed by each user at any of the playback positions of the moving image. The educational support method according to any one of claims 1 to 4, which is characteristic. The extraction process is to extract a plurality of information inputs having the same or similar contents based on the information representing the contents of the information inputs performed by the respective users at any of the playback positions of the moving images. The educational support method according to any one of claims 1 to 5, wherein the method is characterized by. Claim 1 is characterized in that the determination process determines the amount of video return based on an index value indicating the speed at which information is input to a video by a user who has input each of the information. The educational support method described in any one of 6 to 6. The process of determining is characterized in that the amount of returning the moving image is determined based on an index value indicating the skill level of the user who has input the information for the moving image. The educational support method described in any one of 7 to 7. The computer
Detect the break position of the moving image, execute the process,
The educational support method according to any one of claims 1 to 8, wherein the determination process determines the moving image return amount based on the detected break position. The computer
Based on the determined video return amount, the start position at which the video starts to be played is specified.
Any of claims 1 to 9, wherein when the moving image is started to be played back from the specified start position, a process of outputting the contents of at least one of the extracted information inputs is executed. The educational support method described in one. The output process outputs the content having a relatively small degree of similarity to the content of the information input of the current specific user who browses the video that has started playback, among the contents of each of the information inputs. The educational support method according to claim 10, which is characterized. The output process outputs the contents of one of the information inputs included in the group to which the most information inputs belong when the information inputs having the same or similar contents are grouped among the plurality of information inputs. The educational support method according to claim 10 or 11, characterized in that. 10. Educational support method described in any one of. The educational support method according to any one of claims 1 to 13, wherein the determination process determines the moving image return amount based on a preset playback position. On the computer
From the information inputs made by each user of the past multiple users at any of the playback positions of the video, multiple information inputs related to each other are extracted.
Based on the playback position where each of the extracted information inputs was performed, the moving image is returned from the reference position to the playback position before the playback position where any of the information inputs of the plurality of information inputs was performed. Determine the amount,
An educational support program characterized by executing processing. From the information inputs made by each user of the past multiple users at any of the playback positions of the video, multiple information inputs related to each other are extracted.
Based on the playback position where each of the extracted information inputs was performed, the moving image is returned from the reference position to the playback position before the playback position where any of the information inputs of the plurality of information inputs was performed. Determine the amount,
An educational device characterized by having a control unit.

Images