JP7294490B1 - CONTENT MANAGEMENT SYSTEM, CONTENT MANAGEMENT PROGRAM AND CONTENT MANAGEMENT METHOD - Google Patents

Abstract

A content management system, a content management program, and a content management method capable of uniformly managing amorphous content are provided. A content management system 10 includes a reception unit, a feature extraction unit, a search unit, and an output unit. The reception unit receives input of content data from a sender device managed by a content sender. The feature extraction unit uses content data and a machine-learned model that outputs concepts contained in the content as features, and associates the content with the features obtained by applying the content to the model. Generate feature data. Using the feature data, the search unit searches for content associated with features corresponding to search conditions input from a user device 60 managed by a user who is planning to use the content. The output unit outputs content information corresponding to the search result to the user device 60 . [Selection drawing] Fig. 1

Description

The present invention relates to a content management system, a content management program, and a content management method.

In recent years, against the background of the promotion of the use of ICT (Information and Communication Technology) in urban functions, the development of a system that provides optimal services to people by collectively managing various information obtained in social life. Development is underway. For example, the system described in Patent Literature 1 collects personal information such as the user's gender and age, and the user's location information for a plurality of users, and provides each user with information for safe movement. .

Japanese Patent Application Laid-Open No. 2021-5166

If information indicating current or past facts such as personal information and location information is to be managed, it is easy to normalize the information into data in a unified format, which facilitates collective management. On the other hand, since content including creative works such as texts, photographs, and videos has various expression formats and data formats, normalization of such content is complicated.

On the other hand, in modern society, a large amount of content is transmitted by a large number of senders via networks through various means. There is a growing demand for providing that information. Therefore, it is desired to develop a system that can manage amorphous contents in a unified manner.

A content management system for solving the above problems includes: a receiving unit for receiving an input of content data from an originator device managed by a content originator; a feature extracting unit that generates feature data that associates the content with features obtained by applying the content to the model, using a machine-learned model so as to output concepts including as features, and the feature data a search unit for searching content associated with a feature corresponding to a search condition input from a user device, which is a device managed by a user who is planning to use the content, and content corresponding to the search result by the search unit and an output unit that outputs content information, which is information indicating to the user device.

A content management program for solving the above problems is provided in one or more computers to receive input of content data from an originator device that is a device managed by a content originator; and using a machine-learned model so as to output concepts included in the contents as features, and generating feature data in which the features obtained by applying the contents to the model are associated with the contents. using the feature data to search for content associated with a feature corresponding to a search condition input from a user device, which is a device managed by a user who is planning to use the content; and outputting content information, which is information indicating content, to the user device.

A content management method for solving the above-mentioned problems comprises: one or more computers accepting input of content data from an originator device managed by a content originator; and using a machine-learned model so as to output concepts included in the contents as features, and generating feature data in which the features obtained by applying the contents to the model are associated with the contents. using the feature data to search for content associated with a feature corresponding to a search condition input from a user device, which is a device managed by a user who is planning to use the content; and outputting content information, which is information indicating content, to the user device.

According to each of the above configurations, content is organized according to the meaning indicated by the content by feature extraction using a machine learning model. Therefore, unified management of amorphous content is possible. Since content with high semantic similarity to the search condition is included in the search results, it is possible to output information related to appropriate content.

In the system described above, the feature data may be data in a high-dimensional vector space in which each of a plurality of contents is represented as a feature vector.
According to the above configuration, it is possible to accurately organize and search content according to semantic similarity.

The system may further include a usage management unit that receives an application for use of content from the user and inquires of the originator device whether or not permission to use the content is permitted.
According to the above configuration, it is possible to reduce the user's load for obtaining the license.

In the above system, the accepting unit accepts input of conditions of use, which are conditions set by the sender regarding the use of the content, in addition to the data of the content, and the output unit accepts, in addition to the content information, The usage conditions of the content corresponding to the content information may be output to the user device.

According to the above configuration, it is easy to adjust the conditions for using the content between the user and the sender. In addition, since the sender can set usage conditions for each content, the use of the content according to the sender's intention is encouraged, and the conditions can be adjusted more smoothly.

The system includes an update management unit that, when receiving from the originator device an update of the content input in the past, notifies the user device of the user currently using the content that the content has been updated. You may have more.

According to the above configuration, the user can quickly reflect the updated content of the source in the content that he or she is using.

The system may further include a history analysis unit that analyzes a usage history of the content.
According to the above configuration, it is possible to analyze topics of high user interest and user activity trends.

According to the present invention, amorphous content can be managed in a unified manner.

The figure which shows the whole structure of the content management system of one Embodiment. The figure which shows the functional structure of the content management system of one Embodiment. FIG. 4 is a diagram showing the procedure of processing in the content organization function and the content search function in the content management system of one embodiment; FIG. 4 is a diagram showing the procedure of processing in the content usage management function in the content management system of one embodiment; FIG. 4 is a diagram showing the procedure of processing in the content update management function in the content management system of one embodiment;

An embodiment of a content management system, a content management program, and a content management method will be described with reference to FIGS. 1 to 5. FIG.
In this embodiment, content is composed of at least one of sentences, images, sounds, and moving images. Content includes creative works. For example, the content is articles, illustrations, photographs, music, videos, etc. posted on the website.

[System Overview]
As shown in FIG. 1, the content management system 10 is connected to each of a plurality of content transmission systems 50 via a network such as the Internet. Also, the content management system 10 is connected to one or more user devices 60 via a network such as the Internet. Various APIs (Application Programming Interfaces) may intervene in data input/output between the content management system 10 and the content transmission system 50 or the user device 60 .

The content transmission system 50 is managed by a content originator and transmits content to the public via a network. A content sender manages the details of the content to be sent and has the right to use the content, or has the authority to manage the right. For example, a content originator includes a content creator.

The content transmission system 50 is composed of one or more information processing devices. One information processing device is a single computer. The content transmission system 50 includes, for example, a server of a website where content is provided, a database storing content data, and a terminal operated by a sender for accessing these servers and databases. Each of these devices included in content delivery system 50 is an example of a sender device.

Specific examples of the content transmission system 50 include a management system for a tourist site of a local government that publishes articles about sightseeing spots and events as content, a management system for a news site that publishes articles about current affairs as content, Examples include a management system for a gourmet site that publishes articles about restaurants.

The user device 60 is managed by a user who plans to use the content. A user device 60 is an information processing device such as a smart phone, a tablet terminal, a personal computer, a server, or a database. A user may be an individual who intends to use content privately, or may be a service provider who intends to provide services using content on their own site or the like. If the user is a service provider, the user device 60 may be a device included in the operating system of the service provided by the service provider. For example, when a service provider provides an information service through an information site, the operating system of the service includes the server of the information site, the database storing the data of the content posted on the information site, and these servers. and terminals operated by service providers to access databases.

The content management system 10 is composed of one or more information processing devices. The content management system 10 includes, for example, servers and databases.
The content management system 10 receives input of content from the content transmission system 50, and organizes the input content according to the meaning indicated by the content. Then, the content management system 10 searches for content corresponding to search conditions input from the user device 60 from among the organized set of content, and outputs content information based on the search result to the user device 60. - 特許庁

[Configuration of content management system]
The configuration of the content management system 10 will be described in detail with reference to FIG. The content management system 10 has a content organization function, a content search function, a content usage management function, a content update management function, and a content usage history analysis function.

The content management system 10 includes electronic circuits, such as CPU, MPU, and GPU, which are arithmetic units, memories such as ROM, RAM, registered memory, and unbuffered memory, and storage such as SSD and HDD. The content management system 10 may comprise an integrated circuit such as ASIC, FPGA. Each process executed by the content management system 10 may be executed by software provided in the content management system 10, or may be realized by a combination of an integrated circuit provided in the content management system 10 and software. The software includes a content management program that causes the computer to execute the processing of each part described below.

As shown in FIG. 2, the content management system 10 includes a receiving unit 20, a feature extracting unit 21, a searching unit 22, an output unit 23, a usage managing unit 24, an update managing unit 25, and a history management unit 25 by executing a content management program. It functions as an analysis unit 26 . The content management system 10 also stores registration data 30 , feature data 31 , and usage history data 32 . That is, the content management system 10 also functions as a storage unit for these data. The processing of each unit will be described below in order.

<Reception Department>
The reception unit 20 receives input of content data from the content transmission system 50 . For input content, no fixed form is required for either the representation format of the content, which is the format recognized by the user, or the data format of the content, which is the format recognized by the computer. That is, the incoming content is amorphous and not normalized. In other words, the plurality of contents input from the plurality of content transmission systems 50 contain contents of different formats.

Also, from the content transmission system 50, usage conditions, which are conditions set by the sender regarding usage of the content, are also input.
The reception unit 20 generates registration data 30 for the input content and stores the registration data 30 . The registration data 30 includes content data and usage conditions.

<Feature extraction part>
The feature extraction unit 21 uses content data and a machine-learned model to output concepts included in the content as features, and extracts features obtained by applying the content to the machine-learning model and the content. to generate feature data 31 associated with . Concepts included in the content are elements that are directly or indirectly related to the topic, purpose, meaning, etc. included in the content.

Specifically, the feature extraction unit 21 expresses the content on a vector space using distributed representation. That is, the feature extraction unit 21 uses a machine learning model to perform feature extraction on the content using various concepts included in the content as a feature, and calculates a feature vector of the content. In this case, features are obtained as feature quantities from the machine learning model, and the content is represented as a feature vector in the feature data 31 by associating the feature with the content. That is, the feature data 31 is data in a high-dimensional vector space in which content is expressed as points indicating feature vectors. In other words, the feature data 31 is an organized set of multiple contents.

As a result, multiple contents are represented on the vector space according to their semantic similarity. For example, among a plurality of contents, contents having a high semantic similarity from a point of view related to a specific concept are embedded at close positions in the vector space when viewed from the point of view corresponding to the above point of view. In this way, for each content, the semantic positional relationship with respect to other content and various keywords is multidimensionally defined.

Known algorithms such as natural language processing, image recognition processing, and voice recognition processing are used for the processing of the feature extraction unit 21 . The feature extraction unit 21 may be provided with a machine learning model according to the technique used. For example, if the content contains sentences, available techniques include averaging word variance representations or a combination of Word2Vec and TF-IDF, Universal Sentence Encoder, Word Rotator's Distance, Sentence-BERT, and others.

Note that the process of the feature extracting unit 21 may be different from the above-described process as long as the machine learning model is used to output the concept included in the content as a feature, and the feature and the content are associated with each other. For example, the association between the feature and the content may be the association between the tag indicating the concept and the content.

<Search section>
The search unit 22 uses the feature data 31 to search for content that is highly semantically similar to the search condition input from the user device 60 . Search conditions are, for example, words, sentences, still images, and moving images. That is, the search unit 22 searches for content associated with features corresponding to the search condition. Specifically, the search unit 22 calculates a feature vector of the search condition and identifies content that is close to the search condition in the vector space of the feature data 31 . The search unit 22 may specify a plurality of contents in order of closeness to the search condition.

<Output part>
The output unit 23 refers to the registration data 30 and outputs the content information Ic and usage conditions of the content specified by the search unit 22 to the user device 60 . The content information Ic is information that identifies the content, such as content data, information that indicates the location of the content such as a site on which the content is posted, or information that indicates the outline of the content. The content information Ic may contain a plurality of these. The content information Ic may be information included in the registration data 30 or may be information generated based on information included in the registration data 30 .

<Usage Management Department>
The usage management unit 24 receives an application for usage of content from a user and manages usage of the content. Such management includes the management of the sender's permission to use the content. The use of content includes secondary use such as quoting and reprinting of content, and commercial use of content for commercial purposes.

The usage management unit 24 sends content usage application information Ia input from the user device 60 to the content transmission system 50 of the target content. The usage application information Ia includes information required for judging whether or not to approve the usage of the content, such as the prospective user of the content and the mode of usage of the content. The usage management unit 24 transmits to the user device 60 the determination result regarding whether or not the content usage permission received from the content transmission system 50 is permitted.

The usage management unit 24 stores the usage status of the content by the user as the usage history data 32 based on the usage application information Ia and the determination result of the usage permission. The usage history data 32 includes information indicating the content that the user is currently using, content that the user has used in the past, and information such as usage patterns and usage periods of such content.

<Update Management Department>
The update management unit 25 manages updating of contents. When receiving a content update notification from the content transmission system 50, the update management unit 25 refers to the usage history data 32 and transmits a content update notification to the user device 60 of the user currently using the target content. .

<History Analysis Department>
The history analysis unit 26 refers to the usage history data 32 and analyzes the usage history of the content. The contents of analysis include, for example, counting the frequency of use of each content by users, cross-use of a plurality of contents by each user, that is, analysis of a combination of a plurality of contents used by the same user.

[Operation of content management system]
The operation of the content management system 10 will be described for each function that the content management system 10 has. The operation of the content management system 10 is thus the method of content management implemented by the content management system 10 .

<Content organization function and content search function>
The content organization function and content search function will be described with reference to FIG.
First, the content organization function will be described. A content organizing function is implemented by the processing of the reception unit 20 and the feature extraction unit 21 .

As shown in FIG. 3, the content transmission system 50 transmits content data and usage conditions to the content management system 10 for content desired to be registered in the content management system 10 (step S10). The information transmitted by the content transmission system 50 may further include information required for content management by the content management system 10, such as information on the sender.

The terms of use include, for example, whether permission is required for the use of the content, how the content is permitted to be used, and which parts of the content can be used, and can be arbitrarily set by the sender. It should be noted that the terms of use can be set so that the sender is allowed to freely use the content.

The content management system 10 generates registration data 30 for the content input from the content transmission system 50, and stores the registration data 30 (step S11). The process of step S11 is a process performed by the reception unit 20, and thus the reception of the content is completed.

In addition to the content data and usage conditions, the registration data 30 includes other information received from the content transmission system 50, such as information on the sender, and content management information based on information from the content transmission system 50. may include information generated for

Subsequently, the content management system 10 analyzes the input content data, extracts features from the content, and associates the obtained features with the content (step S12). Thereby, feature data 31 is generated. The process of step S<b>12 is performed by the feature extraction unit 21 .

Next, the content search function will be explained. A content search function is implemented by the processing of the search unit 22 and the output unit 23 .
When a user searching for content to use inputs search conditions such as keywords related to desired content to the user device 60, the user device 60 transmits the search conditions to the content management system 10 (step S13). If the user is a service provider and the user device 60 is a device that constitutes a service management system, search conditions may be set in advance in the system.

Upon receiving the search conditions, the content management system 10 uses the feature data 31 to search for content highly semantically similar to the search conditions (step S14). The processing of step S<b>14 is processing performed by the search unit 22 .

Subsequently, the content management system 10 refers to the registration data 30, and outputs the content information Ic corresponding to one or a plurality of content specified as a result of the search and usage conditions to the user device 60 (step S15). The process of step S<b>15 is the process of the output unit 23 .

For example, when the content information Ic includes content data, the content is output to the user device 60 . The content management system 10 may process the content into a form different from the form transmitted by the content transmission system 50 and output it as the content information Ic. Examples of content processing include processing into a specific print form such as a booklet, and processing of content display design in accordance with output destination terminals and programs.

Also, when the content information Ic includes information indicating the location of the content, the information indicating the location of the content is output to the user device 60 . Based on this information, the user can check the content by accessing a website or the like operated by the content transmission system 50 . Also, when the content information Ic includes information indicating an outline of the content, the outline of the content is output to the user device 60 . This allows the user to grasp the outline of the content.

When the user is a service provider, a service using content is provided based on the content information Ic, such as posting content on an information site. When the user device 60 is a device that constitutes a service operating system, the user of the service, who is the final consumer of the content, accesses the system using a terminal such as a smartphone or a personal computer. , to receive content.

In the content management system 10, content is organized multidimensionally according to semantic similarity. Search results include content that includes similar concepts. In other words, the closeness of content is determined from different perspectives for each search condition, and different search results are obtained for each perspective. Therefore, the information of the content desired by the user is accurately provided. By updating the characteristic data 31 as new content is input, the most appropriate search results can be obtained at the time when the user inputs search conditions.
Furthermore, by outputting the usage conditions of the content to the user device 60, the user can check the conditions set by the sender regarding the usage of the content. Therefore, the user can select content to be used in consideration of usage conditions.

<Content usage management function>
The content usage management function will be described with reference to FIG. The content usage management function is implemented by processing of the usage management unit 24 .

If the usage conditions require permission to use the content, the user who wishes to use the content in a form that requires permission inputs usage application information Ia to the user device 60 . Based on this, the user device 60 transmits the usage application information Ia to the content management system 10 (step S20).

Note that the form for inputting the usage application information Ia is based on, for example, a notification indicating that the user wishes to use the content sent from the user device 60 to the content management system 10 in accordance with the user's operation. It is sent from the content management system 10 to the user device 60 .

When the usage application information Ia is received, the content management system 10 transmits the usage application information Ia to the content transmission system 50 managed by the sender of the content desired to be used, and inquires whether or not the usage of the content is permitted ( step S21).

The originator confirms the usage application information Ia and determines whether or not to approve the usage of the content. When the determination result of the license is input to the content transmission system 50, the content transmission system 50 transmits the determination result of the license to the content management system 10 (step S22).

The content management system 10 transmits the received license determination result to the user device 60 (step S23). Also, the content management system 10 records the usage status of the content by the user as the usage history data 32 based on the usage application information Ia and the determination result of the usage permission (step S24). The processing of step S21, step S23, and step S24 is the processing of the usage management unit 24. FIG.

Note that the terms of use may be changeable by the caller. When changing the usage conditions, the content management system 10 changes the usage conditions included in the registration data 30 to the new usage conditions based on the transmission of the new usage conditions from the content transmission system 50 to the content management system 10. do. Furthermore, the content management system 10 notifies the new usage conditions to the user device 60 of the user who has been licensed according to the usage conditions before the update. If necessary based on the new terms of use, the user and the originator may re-apply for use and determine whether to approve the use via the content management system 10 .

In addition, the usage history data 32 is not limited to the history of content usage by the user, and user behavior that can be grasped by the content management system 10, such as content search results and content browsing history, may be recorded at any time.

As described above, since the content management system 10 mediates the content license, the burden on the user to obtain the license is reduced. In particular, when a user intends to use a plurality of contents from different senders, the user can input usage application information Ia for each content to the contents management system 10 without contacting each sender. Therefore, it is possible to greatly reduce the load.

In addition, since the usage conditions are set in advance by the sender, it is easy to adjust the conditions for using the content between the user and the sender. Furthermore, since usage conditions can be set for each content, the sender can set different usage conditions for each of the multiple contents that he or she sends. Therefore, since it is possible to set detailed usage conditions suitable for the content, usage of the content according to the sender's intention is promoted, and the above-mentioned conditions can be adjusted more smoothly.

<Content update management function>
The content update management function will be described with reference to FIG. The content update management function is implemented by processing of the update management unit 25 .

When the content transmitted by the content transmission system 50 is updated, the content transmission system 50 transmits update data, which is data of the updated content, to the content management system 10 (step S30).

Upon receiving the update data, the content management system 10 rewrites the content data included in the registration data 30 with the update data (step S31).
Then, the content management system 10 refers to the usage history data 32 and transmits an update notification indicating that the content has been updated to the user device 60 of the user currently using the target content (step S32). The processing of steps S31 and S32 is the processing of the update management unit 25 .

Regarding the content before update, if the content data has been transmitted to the user device 60 as the content information Ic, the content data after the update, that is, the update data may be transmitted to the user device 60 together with the update notification. .

It should be noted that the feature extraction unit 21 may reorganize the content for the updated content, change the terms of use, and change the usage conditions between the user and the caller via the usage management unit 24. Application for use and permission decision may be made.

Further, when the content is first input, the content data may be deleted from the registration data 30 after the feature data 31 is generated. As a result, the amount of data stored by the content management system 10 can be reduced. In this case, the content information Ic output to the user device 60 does not include content data. Then, when the content is updated, a notification indicating that the content has been updated may be sent from the content transmission system 50 to the content management system 10, and update data may not be sent.

As described above, since the update of the content is notified to the user who is using the content, the user can quickly reflect the update of the content at the transmission source to the content which he or she is using. can. Therefore, it is easily possible to keep the content in use up-to-date. It should be noted that updating the content may include deleting the content.

<Content usage history analysis function>
The content usage history analysis function will be explained. The content usage history analysis function is implemented by the processing of the history analysis unit 26 .

The history analysis unit 26 refers to the usage history data 32, analyzes the usage history of the content, and outputs the analysis result. The output destination of the analysis result may be a terminal operated by the administrator of the content management system 10 , the content transmission system 50 or the user device 60 .

The history analysis unit 26 aggregates, for example, the frequency of use by the user for each of the plurality of contents that constitute the feature data 31 . This makes it possible to grasp the content that is frequently used by the user or the content that is rarely used. Therefore, it is possible to grasp topics that are of high interest and usefulness to users, and that information can be used to create content and develop new services.

Further, for example, the history analysis unit 26 may analyze cross-use of a plurality of contents by each user, that is, a combination of a plurality of contents used by the same user. As a result, it is possible to more accurately grasp topics in which users are highly interested and trends in user activities, so that such information can be used to create content and develop new services.

In the content management system 10, a plurality of contents transmitted from mutually different content transmission systems 50 are collectively managed. , analysis of such uses is readily possible.

Further, the analysis by the history analysis unit 26 may take into consideration the semantic similarity of the content specified by the feature data 31 . For example, the history analysis unit 26 may set a set of contents with high semantic similarity as the above-described cross-use analysis target.

If the usage history data 32 includes the user's content search results and content browsing history, the history analysis unit 26 may include such information in the analysis target. As a result, it becomes easier to grasp topics in which the user is highly interested and activity tendencies of the user.
In addition, when the user is a service provider, the usage history data 32 may include the content usage history of the user of the service provided by the service provider. Then, the history analysis unit 26 may analyze the usage history of the content by the service user. The service user's usage history is collected by the content management system 10 by linking the content management system 10 with the user device 60 and the content transmission system 50 as necessary.

As described above, according to this embodiment, the following effects are obtained.
(1) Content is organized according to the meaning indicated by the content by feature extraction using a machine learning model. Therefore, unified management of amorphous content is possible. Since content with high semantic similarity to the search condition is included in the search results, it is possible to provide appropriate content.

(2) If the feature data 31 is data in a high-dimensional vector space in which each of a plurality of contents is represented as a feature vector, it is possible to accurately organize and search the contents according to semantic similarity. .

(3) The content management system 10 accepts an application for use of content from a user, and inquires of the originator whether or not permission to use the content is permitted. Therefore, the user's load for obtaining the license is reduced.

(4) Content usage conditions are registered in the content management system 10 in advance, and the content management system 10 presents the usage conditions to the user. Therefore, it is easy to adjust the conditions for using the content between the user and the caller. In addition, since the sender can set detailed usage conditions for each content, the use of the content according to the sender's intention is encouraged, and the conditions can be adjusted more smoothly.

(5) When the content management system 10 receives a content update notification from a sender, the content management system 10 notifies the user currently using the content of the content update. As a result, the user can quickly reflect the content updates made by the source to the content that he or she is using.

(6) The content management system 10 analyzes the usage history of content by the user. As a result, it is possible to grasp the topics that the user is highly interested in and the user's activity trends.

[Modification]
The above embodiment can be implemented with the following modifications.
- Terms of use may not be set by the caller. In other words, the usage conditions need not be input from the content transmission system 50 to the content management system 10 . Then, the usage management unit 24 may inquire of the originator about whether or not usage is permitted for all of the content that the user desires to use.

・The content management system 10 only needs to have a content organization function and a content search function, and does not have at least one of a content usage management function, a content update management function, and a content usage history analysis function. may

REFERENCE SIGNS LIST 10 content management system 20 reception unit 21 feature extraction unit 22 search unit 23 output unit 24 usage management unit 25 update management unit 26 history analysis unit 30 registration data 31 feature data 32 usage history data 50 Content transmission system 60 User device

Claims (7)

A reception unit that receives input of content data from an originator device managed by an originator of content transmitted to the public via a network, the reception unit receiving an input of content data separately transmitted by a plurality of mutually different originators. the reception unit that receives input of data of the content of
Feature data that associates the content with the features obtained by applying the content to the model, using the content data and a machine-learned model that outputs concepts included in the content as features. a feature extractor that generates
A device managed by a user who is planning to use the content , the device included in the operating system of the service provided using the content is a user device, and a feature corresponding to a search condition input from the user device a search unit that searches for associated content using only the search condition as an input and using the feature data ;
an output unit that outputs content information, which is information indicating content corresponding to a search result by the search unit, to the user device;
The reception unit receives, in addition to the data of the content, input of usage conditions, which are conditions set by the sender regarding usage of the content,
The output unit outputs, in addition to the content information, the usage conditions of content corresponding to the content information to the user device.
Content management system. 2. The content management system according to claim 1, wherein the feature data is data in a high-dimensional vector space in which each of a plurality of contents is represented as a feature vector. 3. The content management system according to claim 1, further comprising a usage management unit that receives an application for usage of the content by the user and inquires of the originator device whether or not the usage of the content is permitted. The update management unit further comprises an update management unit that notifies the user device of the user who is using the content that the content has been updated when receiving from the originator device a notification of an update of the content that was input in the past. 4. The content management system according to any one of 1 to 3 . The content management system according to any one of claims 1 to 4 , further comprising a history analysis unit that analyzes the usage history of the content. on one or more computers,
Accepting input of content data from an originator device, which is a device managed by an originator of content transmitted to the public via a network, wherein a plurality of different originators originate different data accepting input of data for the content;
Feature data that associates the content with the features obtained by applying the content to the model, using the content data and a machine-learned model that outputs concepts included in the content as features. and
A device managed by a user who is planning to use the content , the device included in the operating system of the service provided using the content is a user device, and a feature corresponding to a search condition input from the user device searching for associated content using the feature data with only the search criteria as input ;
outputting content information, which is information indicating content corresponding to the search result, to the user device;
In addition to the data of the content, an input of a usage condition that is a condition set by the sender regarding the usage of the content is received, and in addition to the content information, the usage condition of the content corresponding to the content information is transmitted to the user. outputting to a device;
A content management program that runs one or more computers
Accepting input of content data from an originator device, which is a device managed by an originator of content transmitted to the public via a network, wherein a plurality of different originators originate different data accepting input of data for the content;
Feature data that associates the content with the features obtained by applying the content to the model, using the content data and a machine-learned model that outputs concepts included in the content as features. and
A device managed by a user who is planning to use the content , the device included in the operating system of the service provided using the content is a user device, and a feature corresponding to a search condition input from the user device searching for associated content using the feature data with only the search criteria as input ;
outputting content information, which is information indicating content corresponding to the search result, to the user device;
In addition to the data of the content, an input of a usage condition that is a condition set by the sender regarding the usage of the content is received, and in addition to the content information, the usage condition of the content corresponding to the content information is transmitted to the user. outputting to a device;
content management method that implements

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