JP2008084133A - Comment domain extraction apparatus, program, and comment domain extraction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display a comment by synchronizing with a scene of a content even if a comment becomes a long sentence, while being able to include a link to two or more scenes in one piece of text information. <P>SOLUTION: It has a text information accumulation part 12 which accumulates at least one or more pieces of text information to a text memory unit which includes the link to the scene of the content, and a comment area extracting part 13 which extracts a comment area corresponding to the link to a predetermined scene of the content from an accumulated text information based on a location of the link on the scene. Thereby, a comment area including links from text information to the scenes is extracted based on a location of the link on the scene, even if the comment becomes long sentence, while being able to include the link to two or more scenes in one text information. Accordingly, it can be able to synchronize with the scene of the content and to display the comment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a comment area extraction apparatus, a program, and a comment area extraction method for extracting comment areas such as opinions and opinions about multimedia contents such as videos.

  2. Description of the Related Art In recent years, for video content such as television broadcasts, many methods have been adopted in which comments (annotations) such as comments and opinions are described as text information and published on a network using a blog function or a bulletin board function. In this way, comments such as opinions and opinions on video content can be disclosed to a large number of people using the blog function and bulletin board function, etc., so that communication can be made with a large number of people through comments while viewing the video. Can do.

  In addition, a technique is also adopted in which a comment about which scene is a comment is clearly communicated to a viewer by embedding a link to a scene of the video content in text information for the video content (see, for example, Patent Document 1). ). According to this technique, since the comment about the scene is displayed in conjunction with the video reproduction, the viewer can browse the comment of the scene being viewed while viewing the video.

JP 2004-364184 A

  By the way, according to the technique described in Patent Document 1, one comment is associated with a link to one scene.

  However, when writing comments such as opinions and opinions about video content such as television and movies, it becomes possible to describe comments more freely by embedding links to a plurality of scenes in the text. According to the technique described in the above, there is a problem that it is difficult to describe a comment including links to a plurality of scenes in one sentence.

  Furthermore, when comments such as impressions and opinions about video content are long, there is a problem that it is difficult for the viewer to browse the content and text in synchronization.

  The present invention has been made in view of the above, and when a comment is added to a content scene, one text information can include links to a plurality of scenes, and a comment about the content is long. It is an object of the present invention to provide a comment area extraction device, a program, and a comment area extraction method that can display a comment in synchronization with a content scene.

  In order to solve the above-described problems and achieve the object, the comment area extraction device of the present invention accumulates text information as an annotation added to the content including at least one link to the scene of the content. A text storage unit, and a comment region extraction unit that extracts a comment region corresponding to a link of the content to the predetermined scene based on a position of the link to the scene from the text information stored in the text storage unit And comprising.

  Further, the program of the present invention includes a text information storage function for storing text information as an annotation added to the content including at least one link to a scene of the content in a text storage unit, and a predetermined content of the content A comment area extracting function for extracting a comment area corresponding to the link to the scene from the text information stored in the text storage unit by the text information storing function based on the position of the link to the scene; To run.

  In addition, the comment area extracting method of the present invention includes a text information storing step of storing text information as an annotation added to the content including at least one link to a scene of the content in a text storage unit, and the content A comment area extracting step for extracting a comment area corresponding to a predetermined link to the scene from the text information accumulated in the text storage unit by the text information accumulating step based on a position of the link to the scene; ,including.

  According to the present invention, when a comment is added to a content scene, a link to a plurality of scenes can be included in one text information, and even if a comment about the content is a long sentence, It is possible to display the comment in synchronization with the scene.

  Exemplary embodiments of a comment area extraction device, a program, and a comment area extraction method according to the present invention will be explained below in detail with reference to the accompanying drawings.

[First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS.

[1. System configuration]
FIG. 1 is a schematic diagram showing a system construction example of a comment browsing system 100 according to the first embodiment of the present invention. The comment browsing system 100 is a system for sharing a comment having a link to content, and as shown in FIG. 1, a comment area extraction is a server computer that accumulates a comment having a link to content shared among users. A plurality of comment creating and browsing apparatuses 3 which are client computers for a user to write comments having links to contents are connected to the apparatus 1 via a network 2 such as the Internet using IP (Internet Protocol). Assume a server client system. The comment area extracting device 1 and the comment creating / viewing device 3 are, for example, general personal computers. Actually, there are more comment area extraction apparatuses 1 and comment creation / viewing apparatuses 3, but in order to simplify the explanation in FIG. 1, one comment area extraction apparatus 1 and two comment area extraction apparatuses 1 are provided. The comment creation browsing apparatus 3 is shown. The comment area extraction apparatus 1 may be realized as a bulletin board server or a blog server on the Internet.

  FIG. 2 is a module configuration diagram of the comment area extracting device 1 and the comment creating / viewing device 3. The comment area extracting device 1 and the comment creating / viewing device 3 store a CPU (Central Processing Unit) 101 that performs information processing, a ROM (Read Only Memory) 102 that is a read-only memory storing a BIOS, and various data so as to be rewritable. RAM (Random Access Memory) 103, HDD (Hard Disk Drive) 104 that functions as various databases and stores various programs, and storage medium 110 for storing information, distributing information to the outside, and information from outside A medium drive device 105 such as a DVD drive for obtaining information, a communication control device 106 for communicating information with other external computers via the network 2, and a CRT for displaying processing progress and results to the operator (Cathode Ray Tube), LCD (Liquid Crystal Display) display 107, etc. The input unit 108 is a pointing device such as a keyboard or a mouse for inputting commands and information to the PU 101, and the bus controller 109 operates by arbitrating data transmitted and received between these units.

  In the comment area extraction device 1 and the comment creation / viewing device 3, when the operator turns on the power, the CPU 101 activates a program called a loader in the ROM 102, and the HDD 104 stores computer hardware and software called an OS (Operating System). A program to be managed is read into the RAM 103 and this OS is activated. Such an OS activates a program, reads information, and stores information in response to an operator's operation. As typical OSes, Windows (registered trademark), UNIX (registered trademark), and the like are known. These operation programs running on the OS are called application programs. The application program is not limited to one that runs on a predetermined OS, and may be one that causes the OS to execute some of the various processes described below, or constitutes predetermined application software, an OS, or the like. It may be included as part of a group of program files.

  Here, the comment area extraction apparatus 1 stores a comment area extraction program in the HDD 104 as an application program. In this sense, the HDD 104 functions as a storage medium that stores the comment area extraction program.

  On the other hand, the comment creation / viewing apparatus 3 stores a comment creation / viewing program in the HDD 104 as an application program. In this sense, the HDD 104 functions as a storage medium that stores a comment creation / viewing program.

  In general, application programs installed in the HDD 104 of the comment area extracting device 1 and the comment creating / viewing device 3 are various optical disks such as CD-ROM and DVD, various magnetic disks such as various magneto-optical disks and flexible disks. The operation program recorded in the storage medium 110 such as a disk, a semiconductor memory, or other various types of media is installed in the HDD 104. Therefore, the portable storage medium 110 such as an optical information recording medium such as a CD-ROM or a magnetic medium such as an FD can also be a storage medium for storing an application program. Furthermore, the application program may be imported from the outside via the communication control device 106 and installed in the HDD 104, for example.

  In the comment area extraction device 1, when a comment area extraction program operating on the OS is started, the CPU 101 executes various arithmetic processes according to the comment area extraction program, and centrally controls each unit. On the other hand, in the comment creating / browsing device 3, when a comment creating / browsing program operating on the OS is started, the CPU 101 executes various arithmetic processes according to the comment creating / browsing program to centrally control each unit. Of the various types of arithmetic processing executed by the CPU 101 of the comment area extracting device 1 and the comment creating / viewing device 3, the characteristic processing of this embodiment will be described below.

  Here, FIG. 3 is a configuration diagram showing a functional configuration of the comment browsing system 100. As shown in FIG. 3, the comment area extraction device 1 includes a communication unit 11, a text information storage unit 12, a comment region extraction unit 13, and a comment region storage unit 14 according to a comment region extraction program. On the other hand, as shown in FIG. 3, the comment creation / viewing apparatus 3 includes a text creation unit 31, a communication unit 32, a content storage unit 33, and a comment synchronization playback unit 34 according to the comment creation / viewing program. Each function will be described below.

  The text creation unit 31 of the comment creation / viewing apparatus 3 exhibits a function in which a user writes text information having a link to content. The communication unit 32 of the comment creating / viewing apparatus 3 exhibits a function of communicating with the comment area extracting apparatus 1. The content storage unit 33 of the comment creating / browsing apparatus 3 exhibits a function of storing content in the HDD 104 that functions as a database.

  Moreover, the comment synchronous reproduction | regeneration part 34 of the comment creation browsing apparatus 3 exhibits the function which synchronizes and displays the comment area | region and content which were received from the comment area extraction apparatus 1 by the communication part 32. FIG. The content displayed in synchronization with the comment may be a medium such as a DVD. In this case, the content storage unit 33 is not necessarily required.

  The communication unit 11 of the comment area extracting device 1 exhibits a function of communicating with the comment creating / viewing device 3. The text information accumulating unit 12 of the comment area extracting device 1 has a function of accumulating the text information received from the comment creating / viewing device 3 in the HDD 104 functioning as a text storage unit.

  Further, the comment area extraction unit 13 of the comment area extraction device 1 exhibits a function of extracting a comment area from the text information stored in the HDD 104 by the text information storage unit 12. The comment area accumulation unit 14 of the comment area extraction apparatus 1 exhibits a function of accumulating the comment area extracted by the comment area extraction unit 13 in the HDD 104 functioning as a comment storage unit. When the comment area extracted by the comment area extraction unit 13 is not accumulated but is immediately transmitted to the comment creating / viewing apparatus 3, the comment area accumulation unit 14 is not necessary.

[2. Text creation function of comment creation and browsing device 3]
First, the text creation function of the comment creation / viewing apparatus 3 will be described. The text creation unit 31 of the comment creation / viewing apparatus 3 displays a screen 50 as shown in FIG. 4 on the display unit 107 so that the user can write text information having a link to the content. Provides functionality.

  As shown in FIG. 4, the screen 50 includes a content display unit 51, a content operation unit 52, a text information editing unit 53, a “send” button 54, and a “insert link” button 55.

  The content display unit 51 is a part that reproduces the content data stored in the HDD 104 by the content storage unit 33 and allows the user to browse the content.

  The content operation unit 52 is a part that performs operations for causing the content display unit 51 to reproduce or pause the content, or to change the reproduction speed.

  The text information editing unit 53 is for causing the user to input text information that is an annotation to be added to the content data displayed on the content display unit 51 and displaying the text information that is an annotation. Here, the annotation is a kind of “annotation” added to content (text, image, video, audio, etc.). For example, information such as “a scene where a woman is crying was impressed” is added to content (video). That is, the character input by the input unit 108 or the like is displayed on the text information editing unit 53. When the input is finally confirmed, the “send” button 54 is pushed by the input unit 108 or the like. As a result, the input character string (text information) is transferred to the comment area extraction device 1 through the network 2 and stored as an annotation in the HDD 104 by the text information storage unit 12 of the comment area extraction device 1 together with the time information at that time. Is done.

  The “insert link” button 55 is used when a link to a scene of content is inserted into text information. More specifically, the user operates the playback time of the content with the content operation unit 52, displays the time at which the link to the scene is to be inserted, and selects the “insert link” button 55, thereby selecting the text information editing unit 53. A link to the scene can be inserted at the cursor position. Such a scene link is displayed as a scene link 60 which is an icon in FIG.

  Here, the scene link 60 is inserted into the text information editing unit 53 when the user selects the “insert link” button 55, but the present invention is not limited to this, and when the user enters text information, The scene displayed on the content display unit 51 may be used as the scene link 60. For example, the user pauses the reproduction of the content by the content operation unit 52 and enters a comment about the scene using the input unit 108 or the like. In this case, the entered comment is created as text information in association with the scene link 60 to the scene. That is, when the user who creates the text information pauses and begins to enter a comment, the scene link 60 to the paused scene is inserted at the beginning. In this case, the “insert link” button 55 is not always necessary.

  Also, as shown in FIG. 4, the scene link 60 is displayed as an icon, but the scene link 60 has a content ID for identifying the content and information on the link destination time of the content. An example of information held by the scene link 60 is shown in FIG. As shown in FIG. 5, the scene link 60 includes a content ID 601, a representative time 602, a start time 603, and an end time 604. In this example, the content ID 601 is a link to a scene that starts from 12000 milliseconds from the beginning of the content having the content “1234” and ends in 20000 milliseconds from the beginning, and the representative scene is 15000 milliseconds from the beginning. I know that there is. The representative time 602, which is a representative scene, can be used as a time when the scene link 60 is displayed as a thumbnail (reduced image) of a scene instead of being displayed as an icon.

  In the example of FIG. 5, three times of the representative time 602, the start time 603, and the end time 604 are specified, but these may be the same time. When these are the same time, it may be used as a scene start time when content and comments described later are displayed in synchronization. In this case, the scene link 60 may be composed of only one of the representative time 602, the start time 603, and the end time 604.

  As described above, an example of text information having the scene link 60 to the content is text information as in the text information editing unit 53 of FIG. Then, when the text information is completed, the user selects a “send” button 54 declaring transmission of the text information by using the input unit 108 or the like, and transmits the text information to the comment area extracting apparatus 1. Then, the comment area extracting device 1 receives the text information transmitted from the comment creating / viewing device 3 by the communication unit 11 and stores the text information in the HDD 104 by the text information storage unit 12.

[3. Comment area extracting function of comment area extracting apparatus 1]
Next, the comment area extraction function of the comment area extraction apparatus 1 will be described. The comment area extraction unit 13 of the comment area extraction apparatus 1 extracts a comment area from the text information (annotation) stored in the HDD 104 by the text information storage unit 12. The comment area is extracted based on the position of the scene link 60 inserted by the user.

  First, the comment region extraction unit 13 of the comment region extraction device 1 extracts a certain number of words from the position of the scene link 60 as a peripheral region. For example, 50 characters before and after the position of the scene link 60 can be extracted as a peripheral region. Further, a certain number of sentences before and after the sentence including the scene link 60 as the peripheral area may be set as the peripheral area. For example, it is possible to extract 10 sentences before and after as a peripheral area. This peripheral area is used to limit the processing area in order to reduce the data processing amount, but the entire text may be used as the peripheral area. In this case, the peripheral area and the text information are the same, and the step of extracting the peripheral area is not necessary.

  Note that the length of the surrounding area may be changed according to the time interval from the start time 603 to the end time 604 of the scene link 60. Accordingly, when the content described later and the comment area are displayed in synchronization, the display time is shortened for the scene link 60 with a short time interval, and the display time is lengthened for the scene link 60 with a long time interval. Therefore, when the time interval is long, a long comment area is extracted, and when the time interval is short, the comment area is shortened. It has the effect of making it easier to read.

(Example of comment area extraction 1)
The comment area extraction unit 13 of the comment area extraction device 1 extracts a comment area from the peripheral area. For determining the boundary between the peripheral area and the comment area, a rule for determining a paragraph by general language processing is used, and the boundary before and after the paragraph including the scene link 60 is determined. For example, if a line feed code is included in the peripheral area, the line break code is used for separation, and a part including the scene link 60 is extracted as a comment area. Further, if there is a blank line in the peripheral area, the blank line is divided and a part including the scene link 60 is extracted as a comment area. Furthermore, a keyword used at a paragraph transition can be registered in advance, and a place where the keyword appears can be regarded as a paragraph boundary. For example, when a keyword such as “by the way” is used at the beginning of a sentence, the previous part can be used as a paragraph break.

  The paragraph determination method as described above may be performed by any one or a plurality of methods may be combined. An example of a rule for applying the paragraph determination method as described above is shown in FIG. The rules shown in FIG. 6 are composed of a determination order and a determination method, and are determined in order from the method with the highest determination order. In the rule shown in FIG. 6, the fourth determination method is empty, which means that the paragraphs are not separated by these methods, and the peripheral area extracted by the number of characters (or the number of sentences) is used as a comment area. It shows that it is used.

  FIG. 7 is a schematic diagram illustrating an example of paragraph determination to which the rule illustrated in FIG. 6 is applied. In the example shown in FIG. 7, a comment area for a predetermined scene link 60 is extracted from the text information (annotation) 71 stored in the HDD 104 by the text information storage unit 12. First, a peripheral area 72 for a predetermined scene link 60 is extracted from text information (annotation) 71. In the example shown in FIG. 7, an area having a certain number of sentences (here, 4 sentences) is extracted as a peripheral area 72 before and after the scene link 60.

  Next, a comment area is extracted from the extracted peripheral area 72. First, paragraph determination is performed based on a blank line having the first determination order in the rule shown in FIG. Thereby, a boundary 73 as shown in FIG. 8 is determined as a boundary behind the extracted peripheral region 72. Next, from the extracted peripheral area 72, the keyword “by the way” in the second ranking in the rule shown in FIG. 6 is found, and a boundary 74 as shown in FIG. 8 is determined. As a result, the boundaries 73 and 74 before and after the paragraph including the scene link 60 are determined, and the process is terminated. An example of the comment area 80 extracted by such processing is shown in FIG.

(Example of comment area extraction 2)
When the time information in which each character string is written is held together with the text information (annotation), the comment area can be extracted based on the time information. That is, in the peripheral area, the comment area may be extracted so that only comments written within a certain time before and after the position of the scene link 60 are included. Furthermore, a portion where the passage of time between sentences is greatly increased can be defined as a break. Furthermore, when text information (annotation) is being written while viewing the broadcasted content, the actual broadcast time of the scene link 60 is referred to, and only comments written within a certain period of time are included. As described above, the comment area may be extracted. Note that the time information held in correspondence with the text information (annotation) has been described here as being held in units of sentences, but it may be held in units of characters, and the comment area is extracted in the same manner. can do.

  Here, it is assumed that the entry time shown in FIG. 11 is recorded for each sentence in the peripheral area 72 illustrated in FIG. In this case, it can be seen from FIG. 11 that the entry time when the sentence including the predetermined scene link 60 was entered is “06:06, 2006, 20:35:41”. Therefore, it is possible to extract the comment area so that only sentences entered within a certain time from the entry time of the sentence including the predetermined scene link 60 are included. In this case, for example, when a sentence entered within 2 minutes is set as a comment area, a comment area 80 shown in FIG. 12 can be extracted as a comment area corresponding to a predetermined scene link 60.

  In addition, a position where the time interval of the entry time is significantly larger than the preceding and following time intervals can be set as the boundary of the comment area. For example, for each sentence in the peripheral area 72 illustrated in FIG. 10, as shown in FIG. 13, a time interval with the next sentence in each sentence in the peripheral area 72 is obtained, and the time interval is a certain level or more. It is also possible to extract the comment area at the value of. For example, by extracting a comment area at a time interval of 3 minutes or more, a comment area 80 shown in FIG. 12 is extracted as a comment area corresponding to a comment area for a predetermined scene link 60 as shown in FIG. be able to.

  Note that the time information held in correspondence with the text information (annotation) 71 has been described here as being held in units of sentences, but may be held in units of characters. Can be extracted.

(Example of comment area extraction 3)
In order to extract the comment area including the scene link, the comment area is extracted by calculating the similarity between the representative sentence and the preceding and following sentences (sentences other than the representative sentence) with the sentence including the scene link as a representative sentence. can do.

  As an example of the calculation of the similarity between the representative sentence and the preceding and following sentences, a case where a sentence in the peripheral area as shown in FIG. 14 is extracted will be described as an example. Here, in order to extract the comment area for the predetermined scene link 60 included in the sentence number 5 shown in FIG. 14, the similarity between the sentence of the sentence number 5 and the sentence before and after it is calculated. The similarity between the sentences can be calculated by calculating the similarity so that the more common words included in the sentence, the higher the score. For example, sentence numbers 6, 7, and 8 are given as those having a high degree of similarity with sentence number 5 shown in FIG. The sentence number 5 and the sentence number 6 shown in FIG. 14 have a high similarity because there is a common word “hero”. Also, sentence number 5 and sentence numbers 7 and 8 shown in FIG. 14 have a high similarity because there is a common word “dolphins”. In this way, when the similarity is higher than a certain level, it is possible to extract the comment area by determining that the sentence is in the comment area.

  In the above, it is determined that the sentence is in the comment area based on the similarity with the representative sentence. However, the similarity between a plurality of sentences in the comment area and the preceding and succeeding sentences is calculated, and the similarity is above a certain level. In the case of this value, it is also possible to extract the comment area by adding the sentence in the comment area. In this method, the similarity between sentence number 4 and sentence number 6 is calculated for sentence number 5 shown in FIG. In this case, the similarity is “0” because there is no common word in sentence number 5 and sentence number 4, but the similarity is high because there is a common word “hero” in sentence number 5 and sentence number 6. For this reason, sentence number 5 and sentence number 6 become sentences in the comment area. Subsequently, the degree of similarity between the sentence numbers 4 and 7 of the preceding and following sentences with respect to the sentence numbers 5 and 6 in the comment area is calculated. The similarity with sentence number 4 is “0”, but the similarity between sentence number 7 and the comment area (sentence number 5 and sentence number 6) is high because there is a common word. Therefore, sentence number 7 is added to the comment area, and the comment areas become sentence numbers 5, 6, and 7. In this way, processing continues until a sentence with a certain degree of similarity or more continues, and as a result, a comment area consisting of sentence numbers 5, 6, 7, and 8 is extracted as the comment area of the predetermined scene link 60. It becomes possible to do.

  The comment region extraction method as described above may be performed by any one method, or a plurality of methods may be combined.

  The comment area extraction unit 13 of the comment area extraction device 1 executes the process as described above, so that the comment area is included in all scene links included in the text information (annotation) stored in the HDD 104 by the text information storage unit 12. And the extracted comment area is stored in the HDD 104 by the comment area storage unit 14.

[4. Comment viewing function of comment creating and browsing device 3]
Next, the comment browsing function of the comment creation / viewing apparatus 3 will be described. The comment synchronized playback unit 34 of the comment creating / browsing device 3 displays a screen 90 as shown in FIG. 15 on the display unit 107, so that a user can browse a content and a comment on the content by using a browsing UI (User Interface). Provides functionality.

  As shown in FIG. 15, the screen 90 includes a content display unit 91, a content operation unit 92, and a comment area display unit 93.

  The content display unit 91 is a part that reproduces the content data stored in the HDD 104 by the content storage unit 33 and allows the user to browse the content.

  The content operation unit 92 is a part that performs operations for causing the content display unit 91 to reproduce or pause the content, or to change the reproduction speed.

  The comment area display unit 93 is a part that allows the user to browse the comment area 80 including the scene link 60 as shown in FIGS. 9 and 12 in synchronization with the content displayed on the content display unit 91.

  Here, the browsing procedure of the content and the comment with respect to the said content by using the screen 90 is demonstrated.

  First, the user selects one content stored by the content storage unit 33 from the HDD 104 of the comment creation browsing device 3. At this time, a content ID corresponding to the selected content is transmitted to the comment area extraction device 1 via the communication unit 32. The comment area extracting apparatus 1 selects a comment area having a scene link for the received content ID from the HDD 104 and transmits the selected comment area to the comment creating and browsing apparatus 3.

  The comment synchronization playback unit 34 of the comment creating / viewing apparatus 3 displays the selected content on the content display unit 91 of the screen 90 shown in FIG. 15 and synchronizes with the display of the content displayed on the content display unit 91. In addition, the comment area 80 where the playback time of the content received from the comment area extracting apparatus 1 overlaps the scene link 60 is displayed on the comment area display section 93 of the screen 90. As shown in FIG. 15, a comment may be displayed in the comment area display section 93 of the screen 90 from the start time to the end time described in the scene link 60 included in the comment area 80. It may be displayed for a certain time before and after the representative time of the scene link 60. In addition, when there are a plurality of comment areas 80 having scene links 60 to the same scene, the plurality of comment areas 80 may be displayed on the comment area display section 93 of the screen 90.

  As described above, according to the present embodiment, the comment area corresponding to the link to the predetermined scene of the content is set to the position of the link from the text information as the annotation including at least one link to the scene of the content. When commenting on a scene of content by extracting based on, it is possible to include links to a plurality of scenes in one text information, and even if a comment about the content becomes a long sentence, By extracting the comment area based on the position of the link to the scene, the comment area including the link to the scene can be extracted from the text information, so that the comment can be displayed in synchronization with the content scene. .

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is also omitted.

  The comment area extraction unit 13 of the comment area extraction device 1 of the comment browsing system 100 according to the present embodiment extracts a comment area based on a co-occurrence word that is assumed to be used together in a sentence. This is different from the first embodiment of the present invention.

  Here, FIG. 16 is a block diagram showing a functional configuration of the comment browsing system 100 according to the second embodiment of the present invention. As shown in FIG. 16, the comment area extraction apparatus 1 according to the present embodiment follows the comment area extraction program, so that the communication unit 11, the text information storage unit 12, the comment area described in the first embodiment, In addition to the extraction unit 13 and the comment region storage unit 14, the same scene determination unit 15 and an important word extraction unit 16 are provided.

  The same scene determination unit 15 of the comment area extraction device 1 has a function of selecting another comment area from the HDD 104 that indicates the same scene as the content scene indicated by the scene link 60 as shown in FIG.

  The important word extraction unit 16 of the comment area extraction device 1 extracts an important word (a co-occurrence word that is assumed to be used together in a sentence) from the comment area selected by the same scene determination unit 15. Demonstrate the function.

[1. Comment area extracting function of comment area extracting apparatus 1]
Next, the comment area extraction function of the comment area extraction apparatus 1 will be described. The comment area extraction unit 13 of the comment area extraction apparatus 1 extracts a comment area from the text information (annotation) stored in the HDD 104 by the text information storage unit 12. Here, a comment area extraction method for the scene link 60 included in the text information 71 shown in FIG. 7 will be described.

  First, the same scene determination unit 15 selects from the HDD 104 another comment area indicating the same scene as the content scene indicated by the predetermined scene link 60. The same scene determination unit 15 determines that the comment area including the scene link 60 indicating a certain time period indicates the same scene even if it is not exactly the same as the predetermined scene link 60 being processed. select. For example, a comment area including the scene link 60 having a representative time within 10,000 milliseconds before and after the time indicated by the representative time in the scene link 60 being processed is determined as indicating the same scene. Alternatively, comment areas having overlapping times from the start time to the end time of the scene link 60 are determined to indicate the same scene and are selected. Thereby, a plurality of comment areas extracted from other text information can be selected.

  Next, a co-occurrence word that is an important word (a word that is supposed to be used together in a sentence) is selected from the comment area that is selected as a comment related to the same scene by the same scene determination unit 15 in this way. ). Such an important word can be extracted by calculating the value of TF / IDF in the natural language processing technique for each word and making a word of a certain numerical value more than a certain value as an important word.

  Subsequently, the comment area extraction unit 13 extracts the important word extracted by the same scene determination unit 15 in the peripheral area being processed, and sets a sentence in which the important word appears in the peripheral area as a comment area. This is because the contents of other comment areas may be similar in a certain scene, so that the same word can be expected to be used. For this reason, an area in which an important word appears can be used as a comment area.

  The processing described above will be described below with an example.

  An example of the peripheral area 72 including the scene link 60 is shown in FIG. Here, it is assumed that “sea”, “hero”, and “dolphins” are extracted as important words 75 from other comment areas. In this case, these important words 75 are extracted from the peripheral area 72, and a sentence including the important words 75 is extracted as a comment area. The comment area 80 in the example shown in FIG. 17 is shown in FIG.

  As described above, according to the present embodiment, the comment area corresponding to the link to the predetermined scene of the content is set to the position of the link from the text information as the annotation including at least one link to the scene of the content. When commenting on a scene of content by extracting based on, it is possible to include links to a plurality of scenes in one text information, and even if a comment about the content becomes a long sentence, By extracting the comment area based on the position of the link to the scene, the comment area including the link to the scene can be extracted from the text information, so that the comment can be displayed in synchronization with the content scene. .

  In each embodiment, the comment area extracting device 1 and the comment creating / viewing device 3 have been described as communicating via a network as separate devices here, but the present invention is not limited to this. It may be a device.

  Moreover, in each embodiment, although the comment creation browsing apparatus 3 has a comment creation function and a comment browsing function, it may have only one.

It is a schematic diagram which shows the system construction example of the comment browsing system concerning the 1st Embodiment of this invention. It is a module block diagram of a comment area | region extraction apparatus and a comment preparation browsing apparatus. It is a block diagram which shows the function structure of a comment browsing system. It is a front view which shows writing UI. It is a schematic diagram which shows the example of the information which a scene link has. It is a schematic diagram which shows the example of the rule for applying a paragraph determination method. It is a schematic diagram which shows the example of a paragraph determination to which the rule shown in FIG. 6 is applied. It is a schematic diagram which shows the example of a paragraph determination to which the rule shown in FIG. 6 is applied. It is a schematic diagram which shows the example of the extracted comment area | region. It is a schematic diagram which shows the example of a peripheral region. It is a schematic diagram which shows the entry time of each sentence in the peripheral region illustrated in FIG. It is a schematic diagram which shows the example of the extracted comment area | region. It is a schematic diagram which shows the time interval with the next sentence in each sentence in the peripheral region illustrated in FIG. It is a schematic diagram for demonstrating the similarity of each sentence in the peripheral region illustrated in FIG. It is a front view which shows browsing UI. It is a block diagram which shows the function structure of the comment browsing system concerning the 2nd Embodiment of this invention. It is a schematic diagram which shows the example of the peripheral region containing a scene link. It is a schematic diagram which shows the example of a comment area | region.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Comment area extraction device 12 Text information storage part 13 Comment area extraction part 14 Comment area storage part 15 Same scene determination part 16 Important word extraction part 104 Text storage part, comment storage part

Claims (12)

A text storage unit that stores at least one link to a scene of content and stores text information that is an annotation added to the content;
A comment area extracting unit that extracts a comment area corresponding to a link to the predetermined scene of the content based on the position of the link to the scene from the text information stored in the text storage unit;
A comment area extracting apparatus comprising: A comment region storage unit that stores the comment region extracted by the comment region extraction unit in a comment storage unit;
The comment area extracting apparatus according to claim 1, wherein: The comment area extraction unit extracts a paragraph including a link to a predetermined scene as the comment area by performing a paragraph determination on the text information.
The comment area extracting apparatus according to claim 1 or 2, characterized in that: The comment area extraction unit changes the length of the peripheral area according to the time interval of the scene indicated by the link to the scene.
The comment area extracting apparatus according to claim 3, wherein: The text information storage unit stores time information at which the text information was written together with the text information in the text storage unit,
The comment area extraction unit extracts the comment area so as to include a link to a predetermined scene based on time information in which the text information is written.
The comment area extracting apparatus according to claim 1 or 2, characterized in that: The comment area extraction unit extracts the comment area so that only comments written within a predetermined time before and after the position of a link to the predetermined scene are included.
The comment area extracting apparatus according to claim 5, wherein: The comment area extraction unit obtains a time interval with the next sentence in each sentence of the text information, and extracts the comment area at a value of a certain time or more.
The comment area extracting apparatus according to claim 5, wherein: The comment area extraction unit extracts the comment area based on a similarity between a representative sentence including a link to the scene of the text information and a sentence other than the representative sentence.
The comment area extracting apparatus according to claim 1 or 2, characterized in that: A same scene determination unit that selects, from the comment region storage unit, another comment region indicating a scene that is substantially the same as the scene of the content indicated by the link to the predetermined scene;
An important word extraction unit that extracts a co-occurrence word that is a word assumed to be used together in a sentence from the comment area selected by the same scene determination unit;
Further comprising
The comment area extraction unit extracts, as the comment area, a sentence in which the important word extracted by the same scene determination unit appears.
The comment area extracting apparatus according to claim 2, wherein: The text information stored in the text storage unit by the text information storage unit holds scene information of the content that was displayed when the text information was created,
The comment area extraction unit extracts the comment area for each scene information of the content;
The comment area extracting apparatus according to claim 1, wherein: A text information storage function for storing, in a text storage unit, text information that is an annotation added to the content including at least one link to a scene of the content;
Comment area extraction for extracting a comment area corresponding to a link to a predetermined scene of the content from the text information stored in the text storage unit by the text information storage function based on the position of the link to the scene Function and
A program that causes a computer to execute. A text information accumulating step for accumulating text information as an annotation added to the content including at least one link to a scene of the content in a text storage unit;
Comment area extraction for extracting a comment area corresponding to a link to a predetermined scene of the content from the text information stored in the text storage unit by the text information storage step based on the position of the link to the scene Process,
A comment area extracting method characterized by including:

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