JP7463850B2 - Information processing device, information processing system, and program - Google Patents

Description

The present invention relates to an information processing device, an information processing system, and a program.

For example, Patent Document 1 discloses a form management device that manages form updates and the version of the form on which each document is based, and notifies relevant parties when a new version of the form on which a document of interest is based exists.

JP 2018-36835 A

The present invention aims to inform the user of the existence of an updated document even if the document has not been registered in the document management device.

The information processing device according to claim 1 of the present invention has a processor, and the processor is an information processing device that acquires messages exchanged between users via a message service, analyzes the messages to estimate updated documents, and presents information about the estimated documents.

The information processing device according to claim 2 of the present invention is an information processing device in the aspect described in claim 1, in which the processor estimates an update user who updated the document and presents information about the estimated update user.

The information processing device according to claim 3 of the present invention is an information processing device in the aspect of claim 1 or 2, in which the processor extracts and presents messages that indicate grounds for estimating that the document has been updated from the analyzed messages.

The information processing device according to claim 4 of the present invention is an information processing device in the aspect of any one of claims 1 to 3, in which the processor acquires date and time information indicating the date and time when a specified first document was last updated, analyzes the messages exchanged after the date and time indicated by the date and time information, estimates whether the first document was updated after the date and time, and presents information about the first document when it estimates that the first document was updated after the date and time.

The information processing device according to claim 5 of the present invention is an information processing device in the aspect described in claim 4, in which the processor acquires the date and time information of the first document when an operation to search for the first document is accepted from a user, and if it is estimated that the first document was updated after the date and time indicated in the date and time information, presents information about the first document to the user.

The information processing device according to claim 6 of the present invention is an information processing device in the form of any one of claims 1 to 5, in which the processor receives confirmation information from a user who has been presented with information about the document, confirming whether the document has been updated, stores the information in memory, and analyzes the message using the confirmation information.

The information processing system according to claim 7 of the present invention is an information processing system that includes a document management device, an information processing device, and a server device, the document management device registers documents created or updated by users, the server device receives messages from users and sends them to designated users, and any one of the document management device, the information processing device, and the server device acquires messages exchanged between the users via a message service, analyzes the messages to estimate updated documents, and presents information about the estimated documents.

The program according to claim 8 of the present invention is a program that causes a computer having a processor to execute the steps of acquiring messages exchanged between users via a message service, analyzing the messages to estimate updated documents, and presenting information about the estimated documents.

According to the first, seventh and eighth aspects of the present invention, a user can know the existence of an updated document even if the document is not registered in the document management device.
According to the second aspect of the present invention, even if the updated document is not registered in the document management device, the user can know the user who updated the document.
According to the third aspect of the present invention, the user knows the basis for assuming that the document has been updated.
According to the invention of claim 4, the user can know the existence of a document that is presumed to have been updated based on messages exchanged after the date and time the document was last updated.
According to the fifth aspect of the present invention, if it is estimated that the searched document was updated after the date and time of the last update, the user is notified that the document has been updated.
According to the sixth aspect of the present invention, the accuracy of estimating an updated document is improved compared to a case where confirmation as to whether or not a document has been updated is not received from the user.

FIG. 1 is a diagram showing an example of the overall configuration of an information processing system 9. FIG. 2 is a diagram showing an example of the configuration of a document management device 4. FIG. 4 is a diagram showing an example of the configuration of a document DB 421. FIG. 1 is a diagram showing an example of the configuration of an information processing device 1. FIG. 2 is a diagram showing an example of a path DB 121. FIG. 4 is a diagram showing an example of a service DB 122. FIG. 12 shows an example of a message DB 123. FIG. 1 shows an example of a prediction model 124. FIG. 2 shows an example of the configuration of a terminal 2. FIG. 2 is a diagram showing an example of a functional configuration of an information processing device 1. FIG. 11 is a flowchart showing an example of an operational flow for presenting estimated document information. FIG. 13 is a diagram showing an example of messages exchanged between users. 13 is a diagram showing an example of a screen on which terminal 2 accepts an operation for searching for a document from a user. FIG. 11 is a flow diagram showing an example of the operational flow for updating a predictive model. FIG. 13 is a diagram showing an example of a screen for accepting user confirmation information on terminal 2.

<Embodiment>
<Configuration of Information Processing System>
Fig. 1 is a diagram showing an example of the overall configuration of an information processing system 9. The information processing system 9 shown in Fig. 1 is a system that estimates updated documents based on messages exchanged between users via a message service. As shown in Fig. 1, the information processing system 9 includes an information processing device 1, a terminal 2, a communication line 3, a document management device 4, a communication line 5, and a server device 6.

The information processing device 1 is a device that monitors the registration of documents in the document management device 4 and messages exchanged between users in the server device 6, and estimates the state of document updates. The information processing device 1 is, for example, a computer.

The terminal 2 is a terminal device operated by each user of the information processing system 9, such as a smartphone, a personal computer, etc.

The document management device 4 is a device that registers documents created or updated by a user. The document management device 4 obtains documents requested from the terminal 2 operated by the user and registers them. The document management device 4 is, for example, a computer.

The server device 6 is a device that provides a message service to users of the information processing system 9 via the communication line 5. A message service is a service that accepts messages from users and sends them to a specified user, and is, for example, a mail service such as SMS (Short Message Service) or email, or a social network service (SNS), etc.

When using the message service of server device 6, a user can specify not only another user but also himself/herself to send a message. In this case, the contents of the message are read by the user himself/herself, and therefore the message can be used, for example, as a reminder or memorandum. In the following, a detailed description of the configuration of server device 6 will be omitted.

The communication line 3 is a line that communicatively connects the information processing device 1, the terminal 2, the document management device 4, and the communication line 5. The communication line 5 is a line that communicatively connects the server device 6 and the communication line 3. The communication line 3 and the communication line 5 may be, for example, a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or a combination of these. The communication line 3 and the communication line 5 may also include a public switched telephone network (PSTN), an integrated services digital network (ISDN), or the like. The communication line 3 and the communication line 5 may also be a single communication line that is not differentiated.

In the embodiment described below, the communication line 3 is a LAN, the communication line 5 is the Internet, and a gateway device (not shown) is provided between the communication lines 3 and 5. One communication line 3 and the information processing device 1, the terminal 2, and the document management device 4 connected to the communication line 3 all belong to one organization.

The number of information processing devices 1, terminals 2, communication lines 3, document management devices 4, server devices 6, and communication lines 5 in the information processing system 9 is not limited to those shown in FIG. 1. For example, the information processing devices 1, document management devices 4, and server devices 6 may each be configured as a cluster system in which multiple devices share functions. Furthermore, the terminals 2 may be directly connected to the communication lines 5 to exchange information with the server devices 6.

<Configuration of Document Management Device>
Fig. 2 is a diagram showing an example of the configuration of the document management device 4. The document management device 4 shown in Fig. 2 has a processor 41, a memory 42, and an interface 43. In other words, this document management device 4 is an example of a document management device having a memory and a processor. These components are connected to each other so that they can communicate with each other, for example, by a bus.

The processor 41 controls each part of the document management device 4 by reading and executing the programs stored in the memory 42. The processor 41 is, for example, a CPU (Central Processing Unit).

The interface 43 is a communication circuit that communicatively connects the document management device 4 to the terminal 2 and the information processing device 1 via the communication line 3, either wired or wirelessly. The interface 43 is also a communication circuit that communicatively connects the document management device 4 to the server device 6 via the communication line 3 and the communication line 5.

The memory 42 is a storage means for storing the operating system, various programs, data, etc., that are loaded into the processor 41. The memory 42 has a RAM (Random Access Memory) and a ROM (Read Only Memory). The memory 42 may also have a solid state drive, a hard disk drive, etc. The memory 42 also stores a document DB 421.

Figure 3 is a diagram showing an example of the configuration of the document DB 421. The document management device 4 stores a file system with a hierarchical structure shown in Figure 3 as the document DB 421 in the memory 42. This file system has a hierarchical structure with multiple nodes having a parent-child relationship, and each node represents a file or a folder containing a file. A folder may further contain a folder. For example, the root node "/" shown in Figure 3 includes "Folder B", "Folder C", and "Folder D". Furthermore, "Folder B" shown in Figure 3 includes a document (i.e., a file) named "Document A_Revision 1.odt". The location where a document is stored in the memory 42 is called a "path". For example, the path of the above-mentioned document is "/Folder B/Document A_Revision 1.odt".

In this file system constructed by the document DB 421, each node stores its own name and date and time information indicating the date and time when it was created and updated as metadata. In response to a request from the information processing device 1, the processor 41 of the document management device 4 provides the name, path, and date and time information of a document stored in the document DB 421.

<Configuration of information processing device>
Fig. 4 is a diagram showing an example of the configuration of the information processing device 1. The information processing device 1 shown in Fig. 4 has a processor 11, a memory 12, and an interface 13. In other words, this information processing device 1 is an example of an information processing device having a memory and a processor. These components are connected to each other so that they can communicate with each other, for example, by a bus.

The processor 11 controls each part of the information processing device 1 by reading and executing the programs stored in the memory 12. The processor 11 is, for example, a CPU.

The interface 13 is a communication circuit that communicatively connects the information processing device 1 to the terminal 2 and the document management device 4 via the communication line 3, either wired or wirelessly. The interface 13 is also a communication circuit that communicatively connects the information processing device 1 to the server device 6 via the communication line 3 and the communication line 5.

The memory 12 is a storage means for storing the operating system, various programs, data, etc., that are loaded into the processor 11. The memory 12 includes a RAM and a ROM. The memory 12 may also include a solid state drive, a hard disk drive, etc. The memory 12 also stores a path DB 121, a service DB 122, a message DB 123, and a prediction model 124.

Figure 5 is a diagram showing an example of path DB 121. Path DB 121 shown in Figure 5 is a database that stores paths, which are locations where documents are stored in document management device 4. Path DB 121 shown in Figure 5 stores each item of document ID, creation date and time, update date and time, and path in association with each other.

The path DB 121 shown in FIG. 5 stores information about one document per row. In the path DB 121, the document ID is identification information that identifies the corresponding document. The creation date and time is information indicating the date and time when the corresponding document was created. The update date and time is information indicating the date and time when the corresponding document was updated. The path is the path where the corresponding document is stored in the document management device 4. The processor 11 makes a request to the document management device 4 when, for example, the terminal 2 requests the document management device 4 to register a document or when a predetermined condition is satisfied, and obtains this information and stores it in the path DB 121.

FIG. 6 is a diagram showing an example of a service DB 122. The service DB 122 is a database that stores information for the information processing device 1 to use the server device 6. The service DB 122 shown in FIG. 6 has a service table 1221 and a user correspondence table 1222.

The service table 1221 stores the service name, organization name, authentication information, and acquisition destination information in association with each item. The service name is the name of the message service provided by the server device 6. The organization name is a name for identifying the organization to which the information processing device 1 belongs in the corresponding message service. The authentication information is information for authenticating the organization to which the information processing device 1 belongs when the information processing device 1 uses the name of the organization to which the information processing device 1 belongs in the corresponding message service to use the server device 6. The acquisition destination information is information indicating the acquisition destination from which the information processing device 1 acquires messages exchanged by the corresponding message service. This acquisition destination information is, for example, a URI (Uniform Resource Identifier) indicating the location in the server device 6 where messages assigned to the organization to which the information processing device 1 belongs are stored, an API (Application Programming Interface) used to acquire those messages, etc.

User correspondence table 1222 is associated with each service name listed in service table 1221. User correspondence table 1222 is a table that associates identification information that identifies a user in the message service indicated by the associated service name with identification information that identifies a user in information processing device 1. User correspondence table 1222 stores the items of user ID and in-service user ID in association with each other. User ID is identification information of a user in information processing device 1. In-service user ID is identification information of a user in the message service indicated by the service name associated in user correspondence table 1222.

Figure 7 is a diagram showing an example of message DB 123. Message DB 123 is a database that stores messages exchanged between users by the message service provided by server device 6. Message DB 123 shown in Figure 7 includes a service name list 1231 and a message history 1232.

In the message DB 123 shown in FIG. 7, the service name list 1231 is a list of service names. These service names are the same as the service names in the service table 1221 in the service DB 122, and are the names of message services provided by the server device 6 and used by the information processing device 1.

Message history 1232 is associated with each service name listed in service name list 1231. Message history 1232 is a history of messages that information processing device 1 has obtained from server device 6. Message history 1232 stores the message sending date and time, user ID, and each item of message data for each line.

In message history 1232, the sending date and time is information indicating the date and time when the corresponding message was sent. The user ID is identification information in information processing device 1 of the user who sent the corresponding message. This user may be identified in server device 6 by the in-service user ID described above. The information processing device 1 refers to user correspondence table 1222 in service DB 122, converts the in-service user ID to a corresponding user ID, and stores it in message history 1232. Message data is data indicating the content of the corresponding message, and is character strings and attached data included in a message sent by a user to a specified user using a message service, etc.

Figure 8 is a diagram showing an example of a prediction model 124. The prediction model 124 is learning model data used to analyze messages stored in the message DB 123. The prediction model 124 shown in Figure 8 stores extraction conditions and each evaluation item.

The extraction conditions are information indicating the conditions for extracting messages related to document updates from the messages stored in message DB 123. For example, the extraction conditions shown in FIG. 8 are that the message contains the character strings "update" or "modify." The evaluation is information indicating the evaluation of the message extracted with the corresponding extraction conditions. The higher the evaluation, the higher the probability that the message means that the document has been updated.

<Device configuration>
Fig. 9 is a diagram showing an example of the configuration of the terminal 2. The terminal 2 shown in Fig. 9 includes a processor 21, a memory 22, an interface 23, an operation unit 24, and a display unit 25. These components are connected to each other via, for example, a bus so as to be able to communicate with each other.

The processor 21 controls each part of the terminal 2 by reading and executing the programs stored in the memory 22. The processor 21 is, for example, a CPU.

The interface 23 is a communication circuit that communicatively connects the terminal 2 and the information processing device 1 via the communication line 3, either wired or wirelessly. The interface 23 is also a communication circuit that communicatively connects the terminal 2 to the server device 6 via the communication line 3 and the communication line 5. As described above, the interface 23 may be directly connected to the communication line 5, and the terminal 2 may be communicatively connected to the server device 6 via the communication line 5.

The operation unit 24 is equipped with operation buttons, a keyboard, a touch panel, a mouse, and other operators for issuing various instructions, and upon receiving an operation, sends a signal corresponding to the operation to the processor 21.

The display unit 25 has a display screen such as a liquid crystal display, and displays images under the control of the processor 21. A transparent touch panel of the operation unit 24 may be placed on top of the display screen.

The memory 22 is a storage means for storing the operating system, various programs, data, etc., that are loaded into the processor 21. The memory 22 includes a RAM and a ROM. The memory 22 may also include a solid state drive, a hard disk drive, etc.

<Functional configuration of information processing device>
10 is a diagram showing an example of a functional configuration of the information processing device 1. The processor 11 of the information processing device 1 executes a program stored in the memory 12 to function as a first acquisition unit 111, a first reception unit 112, a second acquisition unit 113, an estimation unit 114, a presentation unit 115, a second reception unit 116, and a learning unit 117.

The first acquisition unit 111 acquires information such as the update date and time and the path of the document registered in the document management device 4, and stores this acquired information in the path DB 121.

The first reception unit 112 receives a user operation to search for a document from the terminal 2 via the interface 13 and the communication line 3, and identifies a path having the name and characteristics of the document indicated by the operation from within the path DB 121. The first reception unit 112 then identifies, for example, from among the identified paths, the path with the most recent update date and time, and communicates the update date and time to the second acquisition unit 113.

The second acquisition unit 113 is connected to the server device 6 via the interface 13, the communication line 3, and the communication line 5. The second acquisition unit 113 then acquires, from among the messages exchanged between users by the message service, messages that were exchanged after the update date and time specified by the first reception unit 112 and that are related to the name of a document, etc., indicated by the operation accepted by the first reception unit 112. The second acquisition unit 113 stores the acquired messages in the message DB 123.

The estimation unit 114 evaluates each of the messages acquired by the second acquisition unit 113 and stored in the message DB 123 based on the prediction model 124, and estimates whether the document indicated by the operation accepted by the first acceptance unit 112 was updated after the above-mentioned update date and time.

The presentation unit 115 presents information about the document that is estimated to have been updated by the estimation unit 114. For example, the presentation unit 115 presents the path of the document that is estimated to have been updated, the message that is the basis for the estimation, the identification information of the user who sent the message, etc., by instructing the terminal 2 to display them.

The second reception unit 116 receives information (hereinafter, referred to as confirmation information) from the user to whom the information is presented by the presentation unit 115, indicating that the user has confirmed whether the document has been updated.

The learning unit 117 updates the prediction model 124 to reflect the confirmation information received by the second reception unit 116. By updating the prediction model 124, the accuracy of the estimation by the estimation unit 114 described above is improved.

<Operation of the information processing device>
The information processing device 1 performs an operation of presenting estimated document information and an operation of updating a prediction model. The flow of each operation will be described below with reference to a flow diagram.

<Operation of presenting estimated document information>
11 is a flow diagram showing an example of the flow of operations for presenting estimated document information. The processor 11 of the information processing device 1 judges whether or not an operation to search for a document has been accepted from the terminal 2 via the communication line 3 (step S101). While it is judged that an operation to search for this document has not been accepted (step S101; NO), the processor 11 continues this judgment.

On the other hand, if it is determined that an operation to search for a document has been received (step S101; YES), the processor 11 extracts a path of a document that satisfies conditions such as including the name of the document corresponding to the operation from the path DB 121 that was stored when the document was registered in advance (step S102).

For example, when the information processing device 1 stores the path DB 121 shown in FIG. 5 in the memory 12, when the processor 11 receives an operation to search for documents whose document names include "Document A", the processor 11 extracts paths corresponding to the document IDs "D01", "D02", and "D03" from the path DB 121. This is because all of these paths include "Document A".

Then, among the documents stored in the extracted path, the one with the most recent update date and time is identified (step S103), and messages exchanged after that update date and time are obtained from the server device 6 (step S104).

When processor 11 extracts the above-mentioned path, the one with the most recent update date and time is document ID "D03" at "November 18th, 13:05". Processor 11 then identifies the document identified by document ID "D03" and requests from server device 6 messages exchanged after the update date and time of document ID "November 18th, 13:05".

Figure 12 is a diagram showing an example of messages exchanged between users. In the example shown in Figure 12, the server device 6 provides a message service for users to exchange conversations between each other. For example, the message shown in Figure 12, "Please correct the XX part of document A," was sent by a user identified by user ID "U11" at 15:34 on November 18th. In response to this message, a user identified by user ID "U12" responded with a message saying "Understood. I will correct document A and send it to the client" at 15:40 on November 18th, as shown in Figure 12.

The two messages shown in FIG. 12 were both sent after the above-mentioned "November 18th, 13:05." Therefore, the processor 11 obtains these two messages from the server device 6.

The processor 11 extracts messages that refer to the document indicated by the above-mentioned operation from the messages obtained in step S104 (step S105), and analyzes these messages using the predictive model 124 (step S106).

The two messages shown in FIG. 12 both contain the character string "Document A." In other words, these two messages refer to Document A. Processor 11 analyzes these messages using prediction model 124. For example, if the prediction model 124 mentions the document being searched for together with the words "update" or "modify," it will highly evaluate the possibility that the document has been updated.

As a result of the analysis, processor 11 determines whether the document being searched for may have been updated after the above-mentioned update date and time (step S107). If it is determined that the above-mentioned document may not have been updated (step S107; NO), processor 11 ends the process. On the other hand, if it is determined that the above-mentioned document may have been updated (step S107; YES), processor 11 controls terminal 2 to present information about the document to the user (step S108).

Figure 13 is a diagram showing an example of a screen on which terminal 2 accepts an operation to search for documents from a user. The screen shown in Figure 13 is composed of a dialogue box D1 for dialogue with the user. This dialogue box D1 includes forms F1, F2, and F3, and buttons B1, B2, and B3.

When a user inputs the character string "Document A" into form F1 and then presses button B1, which has the character string "Search" written on it, processor 21 of terminal 2 accepts these operations and sends a control signal indicating the contents to information processing device 1.

When the processor 11 of the information processing device 1 receives the above-mentioned control signal from the terminal 2, it interprets this as meaning that the user is searching for the latest document containing the character string "Document A". The processor 11 then instructs the terminal 2 to extract paths containing the character string "Document A" from the path DB 121 shown in FIG. 5, for example, and to list and display these extracted paths in the form F2.

The path indicating the last updated document among these paths is "FolderD/DocumentA_Revision2.odt". Processor 11 determines that the two messages shown in FIG. 12 were exchanged after "November 18th, 13:05", which is the update date and time of the document stored in this path, and interprets these messages to notify the user that the document indicated by "DocumentA" may have been updated. Specifically, processor 11 instructs terminal 2 to display the character string "U12 may have updated DocumentA at 15:40 on November 18th" in form F3. Processor 11 then instructs terminal 2 to display the contents of the conversation that was the basis for estimating that this document was updated below the above-mentioned character string. This conversation is the message sent at 15:40 on November 18th by the user indicated by user ID "U12" shown in FIG. 12.

Here, processor 11 estimates the user indicated by user ID "U12" as the user who updated the document indicated by "Document A" (referred to as the updating user). Processor 11 then presents information about the estimated updating user to the user of terminal 2. In other words, processor 11 is an example of a processor that estimates the updating user who updated the document and presents information about the estimated updating user. Note that processor 11 may present the user's name, affiliation, email address, account name in a message service, and the like, in addition to the user ID, as information about the updating user. With this configuration, the user can learn the user who is estimated to have updated the document and make inquiries to that user.

Processor 11 also presents to the user of terminal 2 the content of the conversation that was the basis for inferring that the above-mentioned document has been updated. In other words, processor 11 is an example of a processor that extracts and presents messages that indicate the basis for inferring that the document has been updated from the analyzed messages. With this configuration, the user can check the messages that are the basis for inferring that the document has been updated.

The processor 11 also obtains date and time information indicating the date and time when a document (called the first document) specified by the user was last updated in the document management device 4 (i.e., the update date and time), analyzes messages exchanged after this update date and time, and if it is estimated that the first document was updated after this update date and time, presents the above-mentioned conversation content to the user of the terminal 2 as information on the first document. In other words, the processor 11 is an example of a processor that obtains date and time information indicating the date and time when the specified first document was last updated, analyzes messages exchanged after the date and time indicated by this date and time information among messages, estimates whether the first document was updated after this date and time, and presents information on the first document if it is estimated that the first document was updated after this date and time. According to this configuration, when a document having a document name, etc., specified by the user among documents registered in the document management device 4 is updated after the update date and time of the last document, the user can know this fact.

In addition, this processor 11 is an example of a processor that, when it receives an operation from a user to search for a first document, obtains date and time information for the first document, and presents information about the first document to the user if it estimates that the first document was updated after the date and time indicated in the date and time information.

Note that, in this case, the processor 11 analyzes messages exchanged after the update date and time to determine whether the specified first document has been updated, but the update date and time in the document management device 4 does not have to be used. In this case, the processor 11 needs only to analyze all messages that mention the specified first document.

Button B2 shown in FIG. 13 is a button on which the character string "Contact U12" is written. When a user presses this button B2, the processor 21 of the terminal 2 sends an email, a message, etc. to the user identified by the user ID "U12". This message, etc., includes, for example, a standard phrase inquiring as to whether or not document A has been updated.

Button B3 is a button on which the character string "Show other conversations" is written. When the user presses this button B3, processor 21 of terminal 2 requests the contents of the other conversations from information processing device 1. In response to this request, processor 11 of information processing device 1 selects a conversation different from the conversation already displayed on terminal 2 as evidence that the above-mentioned document A may have been updated, and transmits message data indicating the contents of that conversation to terminal 2. Terminal 2 receives this message data transmitted by information processing device 1 in response to the request, and displays it on display unit 25.

The processor 11 that executes this "operation of presenting information on an estimated document" is an example of a processor that acquires messages exchanged between users via a message service, analyzes the messages to estimate updated documents, and presents information on the estimated documents.

<Operation to update the prediction model>
14 is a flow diagram showing an example of the operation flow for updating a prediction model. The processor 11 instructs the terminal 2 to display a display prompting the user to confirm whether a document that is estimated to have been updated has been updated (step S201). The processor 11 then determines whether confirmation information for the document has been received from the terminal 2 (step S202).

Fig. 15 is a diagram showing an example of a screen for accepting user confirmation information on terminal 2. Processor 11 instructs terminal 2 to display dialogue box D2 shown in Fig. 15 on display unit 25. This dialogue box D2 displays the text of the question "Was the document updated?" and buttons B11 and B12 below this text.

Button B11 is a button with the string "Yes" written on it, which indicates that the user has confirmed that "the document has been updated." Button B12 is a button with the string "No" written on it, which indicates that the user has confirmed that "the document has not been updated."

When the user presses button B11 or button B12, terminal 2 transmits this operation to information processing device 1 as the confirmation information described above.

In the operation shown in FIG. 14, while it is determined that confirmation information has not been received from terminal 2 (step S202; NO), processor 11 continues this determination. On the other hand, when it is determined that confirmation information has been received from terminal 2 (step S202; YES), processor 11 acquires the received confirmation information, stores the confirmation information, and uses the confirmation information to update prediction model 124 (step S203). After that, processor 11 uses the updated prediction model 124 to analyze the messages stored in message DB 123.

The processor 11 that executes this "operation of updating the predictive model" is an example of a processor that receives confirmation information from a user who has been presented with document information, confirming whether the document has been updated, stores the confirmation information in memory, and analyzes the message using the confirmation information. With this configuration, the information processing device 1 can perform so-called supervised learning, in which the confirmation information obtained from the user is used as teacher data, to improve the accuracy of estimation using the predictive model 124.

Although the processor 11 prompts the user for confirmation information from the terminal 2, the prediction model 124 may be updated by monitoring the user's operation by the information processing system 9. For example, if the processor 11 presents the user with information about a document that is estimated to have been updated, and then the updated document is registered in the document management device 4, the processor 11 evaluates the estimation positively and updates the prediction model 124. On the other hand, if the above-mentioned document has not been updated and has not been newly registered in the document management device 4 for a predetermined period of time, the processor 11 may evaluate the above-mentioned estimation negatively and update the prediction model 124.

By performing the operations described above, the information processing device 1 of the information processing system 9 determines whether a specified document that is registered in the document management device 4 has been updated since the last update date and time based on the contents of messages exchanged after the most recent update date and time, and if it presumes that the document has been updated, presents information about the document to the user. As a result, the user can learn of the existence of an updated document even if the document is not registered in the document management device.

<Modification>
The above is a description of the embodiment, but the contents of this embodiment may be modified as follows. In addition, the following modifications may be combined with each other.

＜1＞
In the above-described embodiment, the information processing device 1 and the document management device 4 have the processor 11 and the processor 41, respectively, which are configured as CPUs, but the control means for controlling these devices may have other configurations. For example, these devices may have various processors other than a CPU.

Here, processor refers to a processor in a broad sense, including general-purpose processors (such as the CPU mentioned above) and dedicated processors (such as GPU: Graphics Processing Unit, ASIC: Application Specific Integrated Circuit, FPGA: Field Programmable Gate Array, programmable logic device, etc.).

＜2＞
The operations of the processor in the above-described embodiments may be performed not only by a single processor, but also by a plurality of processors located at physically separate locations working together.

In addition, the order of each operation of the processor is not limited to the order described in the above embodiment, but may be changed as appropriate.

＜3＞
In the above-described embodiment, the information processing device 1 is a device separate from the document management device 4, but it may also have the functions of the document management device 4. In this case, the information processing device 1 stores a database corresponding to the above-described document DB 421 in the memory 12, and the processor 11 acquires the name, path, and date and time information of the document stored in this database. In this case, the information processing system 9 does not need to include the document management device 4.

＜4＞
In the above-described embodiment, the processor 11 of the information processing device 1 acquires messages exchanged between users via a message service, analyzes the acquired messages to estimate updated documents, and presents information about the estimated documents; however, any of these processes may be performed by the document management device 4 or the server device 6.

For example, the server device 6 may analyze the messages exchanged and, as a result of the analysis, determine whether the document referred to in the message has been updated. If it is determined that the document has been updated, the server device 6 may notify the user of the terminal 2 of this fact.

In addition, the document management device 4 may, for example, supply a list of documents stored in itself to the server device 6 at a predetermined interval, and the server device 6 may supply a message including the document name shown in the list of documents supplied to the information processing device 1.

In this case, the information processing system 9 has a document management device, an information processing device, and a server device, the document management device registers documents created or updated by users, the server device receives messages from users and sends them to specified users, and any of the document management device, information processing device, and server device acquires messages exchanged between users via a message service, analyzes the messages to estimate updated documents, and presents information on the estimated documents. This is an example of an information processing system.

＜5＞
In the above-described embodiment, the program executed by the processor 11 of the information processing device 1 is an example of a program that causes a computer having a processor to execute the steps of acquiring messages exchanged between users via a message service, analyzing the messages to estimate updated documents, and presenting information about the estimated documents.

This program may be provided in a state where it is stored on a recording medium that can be read by a computer device, such as a magnetic recording medium such as a magnetic tape or a magnetic disk, an optical recording medium such as an optical disk, a magneto-optical recording medium, or a semiconductor memory. This program may also be downloaded via a communication line such as the Internet.

1...information processing device, 11...processor, 111...first acquisition unit, 112...first reception unit, 113...second acquisition unit, 114...estimation unit, 115...presentation unit, 116...second reception unit, 117...learning unit, 12...memory, 121...path DB, 122...service DB, 1221...service table, 1222...user correspondence table, 123...message DB, 1231...service name list, 1232...message history, 124...prediction model, 13 ...Interface, 2...Terminal, 21...Processor, 22...Memory, 23...Interface, 24...Operation unit, 25...Display unit, 3...Communication line, 4...Document management device, 41...Processor, 42...Memory, 421...Document DB, 43...Interface, 5...Communication line, 6...Server device, 9...Information processing system, B1, B2, B3, B11, B12...Button, D1, D2...Dialog box, F1, F2, F3...Form.

Claims (8)

a processor, the processor comprising:
Acquire messages exchanged between users via a message service;
Analyzing the message to infer an updated document;
An information processing device that presents the estimated information of the document. The processor,
An update user is estimated as a user who updated the document;
The information processing apparatus according to claim 1 , further comprising: presenting information on the estimated updated user. The processor,
The information processing apparatus according to claim 1 , further comprising: extracting and presenting a message indicating grounds for estimating that the document has been updated from among the analyzed messages. The processor,
Obtaining date and time information indicating the date and time when the specified first document was last updated;
analyzing messages exchanged after the date and time indicated by the date and time information among the messages, and estimating whether the first document was updated after the date and time;
The information processing apparatus according to claim 1 , further comprising: a display unit configured to display information about the first document when the first document is estimated to have been updated after the date and time. The processor,
When an operation to search for the first document is received from a user, the date and time information of the first document is acquired;
The information processing apparatus according to claim 4 , wherein when it is estimated that the first document was updated after the date and time indicated in the date and time information, information on the first document is presented to the user. The processor,
receiving confirmation information from a user who has been presented with the document information, confirming whether the document has been updated or not, and storing the information in a memory;
The information processing apparatus according to claim 1 , further comprising: an information processing device configured to analyze the message using the confirmation information. The system includes a document management device, an information processing device, and a server device,
The document management device registers a document created or updated by a user,
The server device receives a message from a user and transmits the message to a specified user;
Any one of the document management device, the information processing device, and the server device,
Acquire messages exchanged between said users via a message service;
Analyzing the message to infer an updated document;
An information processing system that presents the estimated information of the document. A computer having a processor,
acquiring messages exchanged between users via a message service;
analyzing the message to infer updated documents;
presenting the inferred information of the document;
A program that executes the following.

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