TWI822275B - Online learning system and method for establishing learning event and verifying learning effectiveness thereof - Google Patents

Abstract

An online learning system and a method for establishing a learning event and verifying learning effectiveness thereof are provided. The online learning system includes a server that provides a teacher to upload a teaching video via a teacher’s user interface and to define teaching events such as video clips or pictures, and provides a learner to access the teaching video and the teaching events via a learner’s user interface. The video clips or the pictures are created from the teaching video based on the teaching events. The server provides the teaching video for the learner to learn and to enhance his learning through the video clips or pictures. The server can assess learning status of the learner when watching the teaching video, and assesses learning effectiveness of the learner through questions derived from the video clips or pictures. At last, the learning effectiveness of the learner can be verified.

Description

Online learning system and methods for establishing learning events and verifying learning effectiveness

The description discloses an online learning system, specifically an online learning system that provides teachers with the ability to design learning events themselves and then have the system verify students' learning effectiveness, as well as a method for establishing learning events and verifying learning effectiveness.

Many online teaching systems provide teaching content by recording lecturers' video content. In a lengthy video content, post-production software is often used manually to edit important segments, including adding subtitles or designing playback effects, to produce multiple shorter videos. Audio-visual content allows students to choose what to study.

However, if professional post-production personnel are used to assist in editing the teaching video content, it is not easy for the relevant personnel to judge or define the important content in the teaching video content and the clips that need to be cut out; in addition, it is not easy to require the lecturer to edit the teaching video himself, except for the necessary In addition to taking a lot of time, teaching progress may also be delayed.

In response to the need for online teaching systems to record and edit teaching content, the disclosure proposes an online learning system and a method for establishing learning events and verifying learning effectiveness. In addition to providing teachers with the ability to easily edit teaching video content and obtain video clips that enhance learning or In addition to pictures, it can also effectively assess the learner's learning status and assess the learner's learning effectiveness through questions automatically derived from video clips or pictures that enhance learning.

According to an embodiment of the online learning system, the online learning system is provided with a server to provide teachers with the ability to upload teaching audio and video content through the teacher user interface through the Internet, and define at least one teaching event therefrom, and the teaching event is an audio and video clip or a picture. It also provides learners with access to teaching audio and video content through the learner user interface and obtains teaching events; the online learning system has a database to store one or more teaching audio and video content uploaded by teachers, including events that have been defined One or more video clips and one or more pictures derived from one or more teaching video content.

The online learning system executes a method of creating learning events and verifying learning results through the server. In the method, the main steps include first obtaining the teaching audio and video content, and creating the audio and video clip from the teaching audio and video content based on at least one teaching event defined by the teacher. or pictures. After the learner's selection, the teaching video content is provided to the learner, and when the learner watches the teaching video content, the learning is enhanced through video clips or pictures, so that the server can judge the learner's learning status based on the learner's behavior of watching the teaching video content. , and parsing out the content of the video clips or pictures defined by the event, forming at least one question to evaluate the learner's learning effectiveness of the teaching audio and video content, and finally verifying the learner's learning effectiveness based on the learner's response to at least one question.

Furthermore, the above-mentioned video and audio clips obtained after event definition can include a slow-motion playback effect. When the teaching video content is played to the slow-motion event tag position, the slow-motion video and audio clips are played, and another user can be used. The interface displays information such as supplementary text, images, external links, etc.

Furthermore, the above-mentioned picture obtained after the event definition is one or more screenshots of the teaching video content, and a frame or annotation text is added to the picture.

Preferably, by parsing the content of video clips or pictures or supplementing explanatory text through the semantic recognition function in the server, the at least one question including one positive solution and at least one negative solution can be formed through a question generation function.

Further, the parameters defining a learning event include a minimum learning time threshold and a maximum learning time threshold. When the time for the learner to complete the learning event is greater than or equal to the minimum learning time threshold and less than or equal to the maximum learning time threshold, it is determined as A valid learning event, otherwise it is determined as an invalid learning event.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and illustration and are not used to limit the present invention.

The following is a specific example to illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depictions based on actual dimensions, as is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of the present invention.

It should be understood that although terms such as “first”, “second” and “third” may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used in this article shall include any one or combination of more of the associated listed items depending on the actual situation.

In order to achieve a more effective online audio-visual teaching platform, the disclosure proposes an online learning system and a method for establishing learning events and verifying learning effectiveness. It uses computer technology to implement various online tools to allow users (such as teachers) to upload recorded audio and video content. Finally, it can be quickly established to allow learners to absorb important content in the video to enhance learning. One of the ways is to use software tools to define specific video moments or specific video clips as an event, and use intelligent methods in the online learning system Determine the learner's learning status and verify their learning effectiveness.

Figure 1 shows an embodiment diagram of the network architecture of the online learning system, which shows a computer system for implementing the online learning system, including a server 100 and a database 110 located in the cloud.

The database 110 is connected to the server 100 to store data obtained through the server 100, including storing one or more teaching video contents uploaded by teachers, including one or more teaching video contents obtained after event definition. one or more video clips and one or more pictures. The database 110 also records the needs and responses raised by teachers or learners through the server 100 to provide corresponding data. The database 110 is implemented by various storage devices and is used to store user data, audio and video data, and event data. , systematically designed question materials, and various materials for evaluating learner effectiveness.

The server 100 is implemented as a computer system, and uses the processor and memory in the computer system to implement various software tools and user interfaces. It mainly provides teachers with the ability to upload teaching audio and video content through the teacher user interface, and defines at least one teaching event, and provides Learners access teaching audio and video content through the learner user interface and obtain teaching events. For example, a teacher-specific user interface is provided so that teachers can record and upload audio-visual content to the database 110, and an online editing tool is further provided so that users such as teachers or platform operators can easily define teaching audio-visual content. Important clips, including video clips or pictures, are defined as a teaching event so that learners can easily search for interesting video clips or pictures.

When creating a teaching event, the server 100 also uses the software judgment tool to create a specific playback effect to enhance the learning effect. For example, a clip defined as a teaching event is played in slow motion and another user interface is provided to display explanation text; The content defined as a teaching event is a static picture, and auxiliary information such as picture frames, text or video links can be provided on it to help learners effectively absorb the content.

Furthermore, the server 100 can also use software methods to determine the student's learning status based on the student's behavior when watching the teaching video content. For example, when a learner watches a picture teaching event, if the stay time is too short or too long, it means that the learner's learning status is not good.

According to yet another embodiment, the server 100 analyzes the content displayed in the teaching video content (which may include video, picture, voice and/or text recognition) through software methods, such as using text recognition (intelligent model or software method) technology to identify the content. The text is converted into text data, and the positive and negative meanings of various semantics can also be judged, thereby reorganizing the content to generate questions, and the questions can be automatically generated to verify the learners' learning effectiveness.

According to the embodiment of the online learning system, learners can connect to the server 100 through the network 10 through various user devices to obtain teaching video content, video clips or pictures defined as teaching events. The user device is as shown in Figure 1, but It is not limited to this, it can be smart glasses 101, mobile device 102 and computer equipment 103. When learners use these user devices to log in to the server 100, they obtain courses, which may include teaching video content of interest, video clips or pictures defined as teaching events for learning, or independent video and video content. During the learning process, in addition to providing content, the server 100 also judges the learner's learning status at any time and records the learning process.

According to the embodiment of the online learning system proposed in the disclosure, various graphical user interfaces are provided to teachers and learners through servers located in the cloud. The devices used by teachers are mainly devices that can record audio and video content, and then through The computer device uploads the teaching video content to the server, or directly uses the software tool provided by the server to record and upload the teaching video content. Then the teaching event can be defined through the editing tool, and various video clips or pictures can be generated accordingly; while learning Users can use various user devices as shown in Figure 1 to log in to the server and use user interfaces for learners (such as user interfaces generated by browsers, applications, etc.) to access various audio-visual teaching contents, including through event definitions The created video clips and pictures can be interactively operated during the learning process, and the online learning system collects user learning data through the server's software tools.

The online learning system provides a user interface for learning and management. Please refer to the embodiment diagram shown in Figure 2. The example diagram shows a course management interface 20, which provides various function menus 201 and various course functions 205 that can be used according to user permissions. and provide functions and course list 207 that allow teachers to add courses 203.

The functions of the function menu 201 shown in this illustration include account information 211, in which the accounts of system administrators, teachers and learners can be maintained. The management console 212 provides the administrator with various user interface settings. Unit management 213 provides the management interface of each teaching unit. The course management 214 brings out the course management interface 20 as shown in this figure, in which the course list 207 lists the information of multiple courses (such as course one, course two, course three, etc.), including teachers and functions that allow teachers to add Course 203. Video management 215 provides a user interface for teachers to record and upload teaching video content, and can define events and edit video content and pictures; question bank management 216 provides relevant question options for each course, and provides verification after learners complete the course. Questions about learning effectiveness. Finally, the user can be asked to fill in the questionnaire on the learning and teaching side through the option of questionnaire database management 217.

The course management interface 20 provides a course list 207, which provides sorting and filtering functions so that learners can browse courses, and allows administrators or teachers to manage courses according to authority. The course functions 205 provided are as shown in the figure, including course review 251, course announcements 252, chapter management 253, outline editing 254, homework management 255, exam management 256, teaching material management 257 and questionnaire management 258, etc.

What is particularly special is that teachers and learners can browse online courses through the course management interface 20. Teachers can record and upload teaching audio and video content according to permissions through the new course 203 function and the software functions provided by the system, and can also manually (such as the teacher himself, the system administrator or a specific user) defines one or more teaching events.

For related user interface examples, please refer to the online learning system shown in Figure 3, which provides an example diagram of the video editing user interface in the instructor's setting of learning events.

Figure 3 schematically shows that the teacher connects to the server to enter a video editing user interface 30, which includes at least two functions: slow motion 31 and picture explanation 33. The actual editing function is not limited to this figure. A scene at a certain time in the teaching video content is displayed in the user interface of slow motion 31. The system jumps to a specific moment through the slow motion editing function 311 of this user interface, and uses the slow motion function to set the video of a certain time range. The clip is formed into a slow-motion clip 313, and can be matched with a user interface to input supplementary explanatory text, set external images and video content links.

Next, Figure 4 shows an example diagram of the graphic editing user interface provided by the online learning system for the lecturer to set learning events. The function of the above picture explanation 33 is shown in the picture editing interface 40 in the illustration. The editing toolbar 405 is displayed below and the middle part displays In a picture 401 defined by an event in the teaching audio-visual content at a certain moment, the objects in the picture 401 can be automatically marked by manual or software methods. The picture frame 403 shown in the figure is used to mark specific objects in the picture 401, and accordingly the needs are marked. Learners reinforce learning content. In other ways of setting a key image, text content can be added by selecting or automatically identifying image objects in the image 401, and links to external images and audio-visual content can be set.

Next, as shown in Figure 5, the online learning system provides an embodiment diagram of a graphical explanation editing interface in the lecturer's setting of learning events. This figure shows a graphical explanation editing interface 50, in which the freeze-frame image shown in Figure 4 can be displayed, and a software tool is used to mark a or There are a plurality of explanation frames 501, 503 and 505, and explanation texts 502, 504 and 506 are respectively marked near the explanation frames 501, 503 and 505.

When the system obtains the above-mentioned teaching audio-visual content and creates audio-visual clips or pictures based on at least one teaching event defined by the teacher or the software method, these are the content used by the system to provide learners with enhanced learning. Next, reference can be made to an embodiment diagram of playing teaching audio-visual content with multiple teaching events as shown in FIG. 6 .

The online learning system proposed in the disclosure uses a server to allow learners to log in and obtain teaching audio and video content for learning, and the server provides an audio and video playback interface 60 as shown in Figure 6. The figure shows that the audio and video playback interface 60 is playing a teaching The audio and video content 600 has a video event book 601 schematically displayed below, and the teaching events defined at different moments in the video can be marked with thumbnails and times, such as audio and video clips 603 and pictures 605 as shown. For example, when the user plays the teaching audio and video content 600 through the audio and video playback interface 60, when a defined teaching event is played, such as the video and audio clip 603 obtained after the event definition, a slow motion event is created, in which slow motion is set. Therefore, when the teaching video content 600 is played to a position with a slow-motion event tag (corresponding to a certain time), the slow-motion video clip is played, and a user interface displays the supplementary explanatory text input by the teacher, external Links to images and audio-visual content. The picture 605 is schematically represented as a picture event obtained after event definition, and is displayed as one of the screenshots in the teaching audio and video content. When the teaching audio and video content is played to the event label position corresponding to the picture 605, that is, in the audio and video playback interface 60 Play the picture with frame and/or annotation text 605.

The online learning system provides teaching video content to learners by establishing learning events and verifying learning results, and enhances learning through the video clips and/or pictures when learners watch the teaching video content.

According to the online learning system described in the above embodiments and the various learning functions provided to teachers and learners, it is also possible to evaluate the learning status and learning effectiveness of learners. The overall process can be referred to Figure 7 to establish learning events and Flow chart of method embodiment for verifying learning effectiveness.

The flowchart shows that online learning starts from obtaining the teaching audio and video content uploaded by the teacher (step S701). The teaching audio and video content is to be provided to learners for learning on various user devices. Then the intelligent method provided by the teacher or the system can be used according to the The characteristics of the teaching audio and video content define at least one teaching event (step S703). Afterwards, as described in the above embodiment, one or more audio and video clips can be created from the teaching audio and video content according to the defined at least one teaching event, and/or a or multiple pictures (step S705).

After the teaching events are set in the teaching audio and video content, the teaching audio and video content will be provided to the learners. The learners can watch the teaching audio and video content on various user devices, and according to the teaching events, during the playback process, the set event tag position will be displayed. Audio and video clips or static pictures with slow-motion playback effects (such as playback at 0.5 times the normal speed) or static pictures are used to enhance learning (step S707). Among them, when the video clip with slow-motion playback effect is completed, the playback speed will return to the normal speed; when the learner watches the picture defined by the event, the system records the duration of the event picture jumping out of the display, and displays a message indicating the end of viewing. button, allowing the learner to close the image when the event is completed. In one embodiment, if the learner does not click the button to close the event within the minimum and maximum time thresholds set by the system, it is judged that the learner's learning status is not good. , that is, the learning time is too short or too long. Therefore, the online learning system can determine the learner's learning status based on the learner's behavior of watching the teaching video content (step S709).

It should be mentioned here that the above embodiments describe using slow motion events to enhance learning. In order to evaluate whether learners learn effectively, a time threshold mechanism for evaluating effective learning events and ineffective learning events is further proposed. For example, when the system finishes playing the slow-motion picture, the entire system screen can stop and continue playing, and two function buttons will appear on the screen, such as the "Go Next" and "Review" buttons. If the learner Press the "Go Next" button and the video will continue to play. After the slow-motion event ends, the timer will be stopped and a learning time will be calculated. If the learner chooses "Rewatch", the system will calculate the learning time. And jump to the beginning of this slow-motion event and re-watch the slow-motion audio and video clip. At this time, the system will increase the number of views of this slow-motion event and count the times in the future.

Similarly, in the embodiment of using picture events to enhance learning, picture events are used to evaluate whether learners learn effectively, and a time threshold mechanism for viewing pictures can also be set. For example, when playing a stopped picture event, a function button is displayed on the screen, such as a "Go Next" button, allowing learners to press the "Go Next" button to continue playing the teaching video. This can be calculated by calculating A period of study time to assess learning status.

In particular, in order to evaluate the learner's learning status, learning events can be defined as parameters of effective learning events and invalid learning events, including defining a minimum learning time threshold and a maximum learning time threshold, where these two parameters can It is set by teachers and managers based on system operation experience. It can also be set manually or by software after learners learn a certain learning event behavior and add a buffer value after a long period of statistics. When judging whether a learning event is valid or invalid, when the time for the learner to complete the learning event is greater than or equal to the minimum learning time threshold and less than or equal to the maximum learning time threshold, it is determined to be a valid learning event; otherwise, it is determined to be an invalid learning event.

Furthermore, the online learning system can set questions to evaluate the learner's effectiveness based on the characteristics of the videos and pictures in the teaching events defined above. For example, the system can parse the content of video clips or pictures defined by events. The implementation includes performing speech or text recognition from the videos and pictures to form at least one question for evaluating the learner's learning effectiveness of the teaching video content. According to one embodiment, the content of video clips or pictures can be analyzed through image recognition or semantic recognition functions in the server. For example, artificial intelligence tools (AI), content recognition, semantic analysis, reorganization, and pros and cons can be applied. Software tools such as meaning content generation generate at least one question including one positive solution and at least one negative solution through a question generation function.

Therefore, after finishing playing the teaching audio and video content, the system will display at least one question obtained by analyzing the audio and video clips and/or pictures of the above-defined teaching events through the user interface provided to the learner (step S711), requiring learning The learner answers these questions, so the learner's learning effectiveness can be verified based on the learner's response to at least one question (step S713).

According to the embodiment, in the method of evaluating the learner's learning effectiveness, the learning time can be mainly referred to. When the learner completes learning a certain teaching video content, the online learning system can record the record of the learner completing a certain course through the server. Therefore, for learners who have completed the course, the learning time judgment mechanism will not be executed when playing back the teaching video content that has been completed.

Furthermore, the online learning system will be able to evaluate the learner's learning effectiveness based on the learning time. For example, if a learner stays in a certain segment for less than the minimum learning time and jumps out without passing the learning effectiveness verification, the online learning system can record "invalid learning". If the stay time of a learner event is longer than a predefined time threshold, or after big data analysis of all learners' learning time for specific teaching events in a certain teaching audio-visual content plus the buffer value, the learner can be determined to be unavailable. In line with effective learners, learners can be judged to be "ineffective learning". On the contrary, the online learning system records the learner as "effective learning".

In the way of evaluating learners' learning effectiveness based on their responses to questions posed by the system, software tools such as artificial intelligence tools, content identification, semantic analysis, reorganization, and positive and negative content generation in the online learning system are defined as The content of the question is derived from the video clips and pictures of the teaching event. For example, one or more explanation frames and their text on the picture are first identified, and the number and content of the questions are determined based on these identification results. After semantic analysis, the meaning of the text is obtained, and the content of the correct solution can be obtained. The semantic meaning can also be changed into the negative solution, and then randomly arranged and reorganized to form a choice or yes-or-no question for the learner to answer, thereby verifying the learner's knowledge. Learning effectiveness can also be used to determine the results of effective learning or ineffective learning.

In summary, according to the implementation content of the above-mentioned online learning system and the method of establishing learning events and verifying learning effectiveness, the proposed online learning system and method effectively provide teachers with the ability to upload teaching audio and video content, and can define ways to provide learners with enhanced learning The video clips and pictures can be used to effectively evaluate the learner's learning status through the software in the server, and the learner's learning effectiveness can be evaluated through questions automatically derived from the video clips or pictures that enhance learning.

The contents disclosed above are only preferred and feasible embodiments of the present invention, and do not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

10:Internet 100:Server 110:Database 101:Smart Glasses 102:Mobile device 103:Computer equipment 201: Function menu 205: Course functions 203:Add new courses 207:Course List 20: Course management interface 211:Account information 212: Management console 213:Unit Management 214:Course Management 215:Video management 216: Question bank management 217: Questionnaire database management 251:Course View 252:Course Announcement 253:Chapter Management 254:Outline editing 255:Job Management 256:Examination Management 257:Textbook Management 258: Questionnaire Management 30: Video editing user interface 31: Slow motion 311: Slow motion editing function 313: Slow motion clip 33: Picture explanation 40:Picture editing interface 401:Pictures 403: Picture frame 405:Edit toolbar 50: Graphical explanation editing interface 501, 503, 505: Explanation frame 502, 504, 506:Commentary text 60:Video playback interface 600:Teaching video content 601:Video event book 603:Audio and video clips 605:Pictures Steps S701 ~ S713: The process of establishing learning events and verifying learning results

Figure 1 shows an embodiment diagram of the network architecture of the online learning system;

Figure 2 shows an example of a user interface for the online learning system to provide various audio-visual learning contents;

Figure 3 shows an example diagram of the video editing user interface provided by the online learning system for instructors to set learning events;

Figure 4 shows one example of a graphic editing user interface provided by the online learning system for instructors to set learning events;

Figure 5 shows the second embodiment of the graphic editing user interface provided by the online learning system for instructors to set learning events;

Figure 6 shows an embodiment of playing teaching video content with multiple teaching events; and

Figure 7 shows a flow chart of a method embodiment for establishing learning events and verifying learning effectiveness.

(Step S701): Obtain teaching video content

(Step S703): Define at least one teaching event

(Step S705): Create video clips or pictures based on teaching events

(Step S707): Learners watch teaching video content

(Step S709): Determine the learner’s learning status

(Step S711): Analyze the content to form questions to evaluate learning effectiveness

(Step S713): Verify the learning effectiveness based on the learner’s response

Claims (6)

An online learning system includes: a server that provides a teacher to upload a teaching video content through a teacher user interface, and defines at least one teaching event, the teaching event is a video clip or a picture, and provides a learning The user accesses the teaching video content through a learner user interface and obtains the teaching event; and a database is connected to the server to store one or more teaching video content uploaded by the teacher, including One or more video clips and one or more pictures obtained from the one or more teaching video content after the event is defined, wherein each picture obtained after the event is defined is a screenshot of the teaching video content, and in Add a frame or annotation text to each picture; wherein, a method of creating learning events and verifying learning results is executed through the server, including: obtaining the teaching audio and video content; according to the defined at least one teaching event, from the teaching audio and video content Create the audio-visual clip or the picture; provide the teaching audio-visual content to the learner, and use the audio-visual clip or the picture to enhance learning when the learner watches the teaching audio-visual content; according to the learner's viewing of the teaching audio-visual content Behavioral judgment of the learner's learning status; use the semantic recognition function in the server to analyze the content or supplementary explanatory text of the audio-visual clip or the picture in the teaching audio-visual content watched by the learner to form a correct solution and at least one negative solution The at least one question; providing the at least one question for evaluating the learner's learning effectiveness of the teaching video content; and verifying the learner based on the response generated by the learner to the at least one question learning effectiveness. The online learning system as described in claim 1, wherein the video clip obtained after event definition includes a slow-motion playback effect. When the teaching video content is played to a position with a slow-motion event tag, the slow-motion video clip is played. The video clip uses another user interface to display supplementary text, images and external links. The online learning system of claim 1, wherein the parameters defining a learning event include a minimum learning time threshold and a maximum learning time threshold. The online learning system as described in claim 3, wherein when the time for the learner to complete the learning event is greater than or equal to the minimum learning time threshold and less than or equal to the maximum learning time threshold, it is determined to be a valid learning event, and vice versa. It is determined as an invalid learning event. A method for establishing learning events and verifying learning results, running in an online learning system, including: obtaining a teaching video content uploaded to the online learning system by a teacher; and obtaining from the teaching video content based on at least one teaching event defined Create an audio-visual clip or a picture, in which each picture obtained after event definition is a screenshot of the teaching audio-visual content, and add a frame or annotation text to each picture; provide the teaching audio-visual content to a learner When the learner watches the teaching video content, the video clip or the picture is used to enhance learning; the learner's learning status is judged based on the learner's behavior of watching the teaching video content; and the semantic recognition function in the server is used Analyze the content or supplementary explanatory text of the audio-visual clip or picture in the teaching audio-visual content watched by the learner to form at least one question including a correct solution and at least one negative solution; Provide the at least one question for evaluating the learner's learning effectiveness of the teaching video content; and verify the learner's learning effectiveness based on a response generated by the learner to the at least one question. The method for establishing learning events and verifying learning results as described in claim 5, wherein the video clip obtained after event definition includes a slow-motion playback effect. When the teaching video content is played to a position with a slow-motion event tag , play the video clip in slow motion and use another user interface to display supplementary text, images, and external links.

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