JP6744235B2 - Notification device, notification method, and notification program - Google Patents

Description

The present invention relates to a notification device, a notification method, and a notification program that notify information related to communication.

2. Description of the Related Art Conventionally, a device that supports communication performed by a plurality of people is known. For example, Patent Literature 1 has an event function for a plurality of users to exchange information, and recommends a user terminal based on the affinity between the event and the user, thereby increasing the opportunity for communication of the user. There is disclosed a device for causing the problem.

JP, 2014-78182, A

By the way, the device described in Patent Document 1 corresponds to a service that provides online communication provided via a network such as the Internet, and is used in an actual space such as a social gathering place where a plurality of people communicate. It does not support communication, that is, offline communication. On the other hand, even if multiple communications occur in the real space, the participant who is going to newly participate in the communication cannot grasp the details of the multiple communications, and which communication should be attended. There is a problem that it is difficult to judge.

Therefore, the present invention has been made in view of these points, and provides a notification device, a notification method, and a notification program capable of supporting the participation of a new participant in a communication that occurs in a real space. The purpose is to

The notification device according to the first aspect of the present invention includes a communication specifying unit that specifies communication performed offline among a plurality of participants existing in a predetermined venue, and the predetermined venue of the specified communication. A position specifying unit that specifies a position in the above, a topic specifying unit that specifies a specified topic of communication, and a notification unit that notifies notification information including the specified position and topic.

The plurality of participants have a wireless communication device that transmits a radio wave, and a plurality of receiving devices that receive the radio wave transmitted by the wireless communication device are installed in the predetermined venue, and the communication specifying unit is Alternatively, the reception status information indicating the reception status of the radio wave in each of the plurality of reception apparatuses may be acquired from the plurality of reception apparatuses, and the communication may be specified based on the reception status information.

The predetermined venue is provided with a plurality of voice input devices that receive voice input, and the communication identification unit identifies the communication based on a voice input situation in each of the plurality of voice input devices. Good.

The plurality of participants have a wireless communication device that emits radio waves, a plurality of receiving devices that receive radio waves are installed in the predetermined venue, and the position specifying unit includes a plurality of receiving devices. The position of the communication may be specified based on the position where each is installed and the information indicating the reception status of the radio wave in each of the plurality of receiving devices.

The notification device further includes a participant identification unit that identifies a participant participating in the identified communication, and the notification unit notifies the notification information including information about the identified participant. Good.

The predetermined venue is provided with a plurality of voice input devices that receive voice input, and the topic identification unit converts voice information indicating voice received by the voice input device into text information, and the text information. Based on, the topic of the identified communication may be identified.

The topic specifying unit specifies a characteristic word indicating a characteristic of the text indicated by the text information by performing a morphological analysis of the text information, and specifies the specified communication topic based on the characteristic word. Good.

The notification device may further include a status specifying unit that specifies the specified communication status, and the notification unit may notify the notification information that includes status information indicating the specified status.

The predetermined venue is provided with a plurality of voice input devices that receive voice input, and the state identification unit is identified based on the voice received by the voice input device corresponding to the identified communication. The degree of excitement of communication may be specified, and the degree of excitement may be specified as the state.

The state identifying unit identifies, based on the voice received by the voice input device corresponding to the identified communication, whether the utterances of the plurality of participants participating in the identified communication are one-way. Alternatively, whether the utterance is in one direction may be specified as the state.

The state identification unit converts the voice information indicating the voice received by the voice input device corresponding to the identified communication into text information, and based on the text information, indicates a degree indicating the specialty of the identified communication. You may specify and the degree may be specified as said state.
The state specifying unit may specify the elapsed time from the time when the communication is specified as the state.

The notification device is information indicating the interest of a new participant who newly participates in the communication, the topic corresponding to the communication in which the new participant has participated in the past, or the communication in which the new participant has participated in the past. Further comprising a selection unit for selecting a communication that encourages the new participant to participate, based on the participant, the topic corresponding to the communication specified by the communication specifying unit, the participant, or the state, The notification unit may notify the terminal owned by the new participant of the notification information corresponding to the selected communication.

When the notification unit receives a selection of at least one of the communication specified by the communication specifying unit from a terminal possessed by a new participant who newly participates in communication, the topic and the participation corresponding to the selected communication are received. The relevant information of at least one of the persons may be specified and the relevant information may be notified to the terminal.

A notification method according to a second aspect of the present invention is a computer-executed step of identifying a communication performed offline between a plurality of participants existing in a predetermined venue, The method includes the steps of specifying a position in a predetermined venue, specifying a specified topic of communication, and notifying notification information including the specified position and topic.

A notification program according to a third aspect of the present invention is configured such that a computer uses a computer to specify a communication that is performed offline between a plurality of participants existing in a predetermined venue, the predetermined communication of the specified communication. The position specifying unit for specifying the position in the venue, the topic specifying unit for specifying the specified communication topic, and the notification unit for notifying the notification information including the specified position and topic.

According to the present invention, there is an effect that it is possible to support the participation of a new participant in the communication occurring in the real space.

It is a figure which shows the outline of the notification system which concerns on 1st Embodiment. It is a figure which shows the structure of the notification apparatus which concerns on 1st Embodiment. It is a figure which shows the example of calculation of the specialty degree of each characteristic word which concerns on 1st Embodiment. It is a figure which shows the example of a display of the notification information which concerns on 1st Embodiment. It is a figure which shows the structure of the notification apparatus which concerns on 2nd Embodiment.

<First Embodiment>
[Outline of Notification System S]
FIG. 1 is a diagram showing an outline of a notification system S according to the first embodiment. FIG. 2 is a diagram showing the configuration of the notification device 1 according to the first embodiment. The notification system S is a system for notifying a participant or the like who newly participates in communication of the position and topic of communication that is performed offline among a plurality of participants existing in the predetermined venue P. Here, the predetermined venue P is a place where a plurality of participants actually meet and communicate with each other, such as a party venue.

As shown in FIG. 2, the notification system S includes a notification device 1, a plurality of receiving devices 2, a plurality of wireless communication devices 3, and a plurality of microphones 4. The fixed venue P is provided with equipment fixed to the venue such as a table, and each of the plurality of receiving devices 2 is installed on the table or the like. The plurality of wireless communication devices 3 emit radio waves for short-distance wireless communication such as Bluetooth (registered trademark). In the first embodiment, each of the plurality of participants existing in the predetermined venue P has the wireless communication device 3. Each of the receiving devices 2 receives the radio waves transmitted by the plurality of wireless communication devices 3. Each of the plurality of microphones 4 is installed near the receiving device 2. Each of the plurality of microphones 4 functions as a voice input device, and receives the input of the voice uttered by each of the plurality of participants existing in the predetermined venue P.

The notification device 1 is a server that can communicate with other devices via a communication network such as a LAN (Local Area Network). The notification device 1 specifies communication based on the reception status of radio waves in each of the plurality of reception devices 2 ((1) in FIG. 1), and specifies the communication position based on the reception status (((1) in FIG. 1). 2)). The notification device 1 identifies the topic of communication based on the voice received by the microphone 4 ((3) in FIG. 1).

The notification device 1 displays the notification information including the position and topic of communication on the display unit 12 and the like included in the notification device 1 to notify the position and topic of communication to the participants who newly participate in the communication. ((4) in FIG. 1). By doing so, the notification device 1 can support the participation of a new participant in the communication occurring in the predetermined venue P as the actual space.

[Configuration Example of Notification Device 1]
Next, the configuration of the notification device 1 will be described.
As shown in FIG. 2, the notification device 1 includes a communication unit 11, a display unit 12, a storage unit 13, and a control unit 14.

The communication unit 11 is a communication interface for connecting to a communication network, and includes, for example, a LAN controller. The communication unit 11 communicates with the plurality of receiving devices 2 and the plurality of wireless communication devices 3.
The display unit 12 is a display, and is installed in, for example, a predetermined venue P. The display unit 12 displays the notification information under the control of the control unit 14.

The storage unit 13 is, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory). The storage unit 13 stores various programs for causing the notification device 1 to function. For example, the storage unit 13 functions as the communication identification unit 141, the participant identification unit 142, the position identification unit 143, the topic identification unit 144, the state identification unit 145, and the notification unit 146, which will be described later, using the control unit 14 of the notification device 1. The notification program to be stored is stored.

The control unit 14 is, for example, a CPU (Central Processing Unit). The control unit 14 controls various functions of the notification device 1 by executing various programs stored in the storage unit 13. By executing the notification program stored in the storage unit 13, the control unit 14 executes the communication specifying unit 141, the participant specifying unit 142, the position specifying unit 143, the topic specifying unit 144, the state specifying unit 145, and the notification unit. Function as 146.

The communication specifying unit 141 specifies the communication being performed among the plurality of participants existing in the predetermined venue P. Specifically, the communication identifying unit 141 acquires the reception status information from the plurality of receiving devices 2 via the communication unit 11.

The reception status information is information indicating the reception status of the radio wave transmitted by the wireless communication device 3 in each of the plurality of receiving devices 2 that receive the radio wave. The reception status information includes receiving device identification information that identifies the receiving device 2, received radio wave intensity that indicates the intensity of the radio wave that the receiving device 2 has received from each of the plurality of wireless communication devices 3, and the wireless communication device that has transmitted the radio wave. 3 includes the communication device identification information and the time when the radio wave is received.

The communication identifying unit 141 identifies that communication is being performed based on the reception status information. For example, the communication identifying unit 141 indicates that the reception status information acquired from one receiving device 2 indicates that the radio waves transmitted by each of the plurality of wireless communication devices 3 are continuously received, and that the reception state information is received. When all the radio wave intensities of the radio waves are equal to or higher than the predetermined intensity, it is specified that communication is performed within the predetermined range from the receiving device 2.

When it is specified that the communication is being performed, the participant specifying unit 142 specifies the participant participating in the communication.
For example, the manager or the like of the predetermined venue P can identify the communication device identification information of the wireless communication device 3, the participant identification information indicating the names of the participants who own the wireless communication device 3, and the affiliation and hobbies of the participant. Participant information associated with the participant supplementary information such as is stored in the storage unit 13.

The participant identifying unit 142 refers to the reception status information corresponding to the identified communication, and among the radio waves received within the predetermined time from the current time, the communication device identification information corresponding to the radio wave having the received radio wave intensity of the predetermined intensity or more. Specify. Then, the participant identifying unit 142 refers to the participant information and uses the participant identification information associated with the identified communication device identification information as the participant identification information of the participant participating in the identified communication. Identify. The participant identifying unit 142 may refer to the participant information stored in the storage unit 13 to identify the participant supplementary information associated with the identified participant identification information.

When it is determined that communication is being performed, the position specifying unit 143 specifies the position of the communication in the predetermined venue P. For example, in the storage unit 13, the receiving device identification information of the receiving device 2 and the receiving device position information indicating the position of the receiving device 2 in the predetermined venue P are associated and stored in advance. The position identifying unit 143 identifies the receiving device identification information included in the reception status information corresponding to the identified communication. Then, the position identifying unit 143 refers to the receiving device position information and identifies the position indicated by the position information associated with the identified receiving device identification information as the position in the predetermined venue P of the identified communication.

The position specifying unit 143 specifies the position of communication based on the position where each of the plurality of receiving devices 2 is installed and the reception status information indicating the reception status of the radio wave in each of the plurality of receiving devices 2. You may.

Specifically, the position identifying unit 143 refers to the reception status information corresponding to the identified communication and identifies the wireless communication device 3 owned by the participant who participates in the communication. The position identifying unit 143 refers to the reception status information acquired from each of the plurality of receiving devices 2 and identifies one or more receiving devices 2 that have received the radio waves transmitted by the identified wireless communication device 3. Then, the position specifying unit 143 specifies the position of communication based on the reception status of the radio wave transmitted by the specified wireless communication device 3 in each of the specified one or more receiving devices 2.

For example, it is assumed that each of the first receiving device 2, the second receiving device 2, and the third receiving device 2 receives the radio wave transmitted by the specified wireless communication device 3. In this case, when the reception radio wave intensities of the radio waves are the same in each of the receiving devices 2, the position identifying unit 143 causes the first receiving device 2, the second receiving device 2, and the third receiving device. An intermediate position between 2 and is specified as the specified communication position.

The topic identifying unit 144 identifies the identified topic of communication. Specifically, the topic specifying unit 144 converts the voice information indicating the voice received by the specified communication position or the microphone 4 installed near the position to text information. Then, the topic specifying unit 144 specifies the specified communication topic based on the text information.

More specifically, the topic identifying unit 144 performs a morphological analysis of the text information converted from the voice information, and based on TF (Term Frequency)-IDF (Inverse Document Frequency), identifies the characteristics of the text indicated by the text information. The characteristic word to show is specified. Then, the topic identifying unit 144 identifies the identified communication topic based on the feature word.

The topic specifying unit 144 may classify the text information into predetermined categories and specify the classified categories as topics of communication. In this case, the storage unit 13 stores, for example, category information having a hierarchical structure in which a large category, a medium category that is a keyword belonging to the large category, and a small category that belongs to the medium category are associated with each other. For example, the topic specifying unit 144 uses text information classified into one category included in the category information as teacher data, and performs machine learning using the teacher data to create a learning model in advance. The topic specifying unit 144 specifies one category corresponding to the text information by inputting the text information converted from the voice information into the learning model. Then, the topic identifying unit 144 identifies the identified category as a topic of communication.

The state identifying unit 145 identifies the identified communication state. Here, the state of communication is at least one of the degree of excitement of communication, whether or not the utterance of the participant in communication is one-way, the specialty of communication, and the elapsed time after the communication is first specified.

The state identifying unit 145 identifies the degree of excitement of the communication based on the voice received by the microphone 4 installed at the identified communication position. Specifically, first, the storage unit 13 stores in advance the average values of the utterance intervals, utterance sizes, utterance speeds, and laughter frequencies of participants in a plurality of communications. The state identifying unit 145 analyzes the voice information indicating the voice received by the microphone 4 to calculate the utterance interval, the utterance size, the utterance speed, and the laughter frequency of the participants in the identified communication. The state identifying unit 145, the utterance interval, the utterance size, the utterance speed, the average value of the frequency of laughter stored in the storage unit 13, the calculated utterance interval, the utterance size, and the utterance speed, The degree of excitement is calculated based on the frequency of laughter. For example, the state identifying unit 145 calculates, as the degree of excitement, the total value of the deviation degrees from the respective average values of the calculated utterance interval, utterance size, utterance speed, and laughter frequency. Here, it is assumed that the higher the total value of the divergence, the higher the communication.

The state identifying unit 145 identifies whether or not the utterances of a plurality of participants participating in the communication are unidirectional, based on the voice received by the microphone 4 installed at the identified communication position. Specifically, the state identifying unit 145 calculates the utterance time of each of the plurality of participants participating in the communication, and calculates the variance of the calculated plurality of utterance times. When the calculated variance is equal to or larger than the predetermined value, the state identifying unit 145 identifies that the utterance frequency of some participants is high and that the utterances of the plurality of participants are unidirectional. Further, the state identifying unit 145 identifies that the utterances of the plurality of participants are bidirectional when the calculated variance is less than the predetermined value.

The state identifying unit 145 converts the voice information indicating the voice received by the microphone 4 corresponding to the identified communication into text information, and identifies the degree of indicating the specialty of the identified communication based on the text information. .. Specifically, the state identifying unit 145 calculates in advance the ratio of the appearance frequency of the feature word in the category corresponding to the identified topic and the appearance frequency of the feature word in another category different from the category, and the ratio Is stored in the storage unit 13 as a specialty degree corresponding to the characteristic word.

FIG. 3 is a diagram showing an example of calculating the degree of specialization of each characteristic word according to the first embodiment. In FIG. 3, the case where the specific category is “OS” and the characteristic words are OS_A, OS_B, OS_C, and OS_D is taken as an example. In the example shown in FIG. 3, the appearance frequency of OS_A in the OS category is 1000 times, and the appearance frequency of OS_A in other categories is 8000 times. The state identifying unit 145 divides the appearance frequency of OS_A in the OS category by the appearance frequency of OS_A in other categories, and calculates the specialty degree of OS_A as 0.125. Similarly, the state identifying unit 145 identifies the specialty of OS_B as 0.5, the specialty of OS_C as 2.0, and the specialty of OS_D as 6.0, and stores these specialty in the storage unit 13. ..

It is assumed that the state specifying unit 145 extracts OS_D as the characteristic word five times and OS_C as the three times from the text information converted from the voice received by the microphone 4 corresponding to the specified communication. In this case, the state identifying unit 145 calculates the communication specialty as 36 by summing the multiplication values of the number of appearances and the specialty.

The state identifying unit 145 may identify the elapsed time from the time when the communication is identified. For example, the state identifying unit 145 generates communication identification information that identifies the communication based on the position and topic of the communication in response to the identification of the communication. The state identifying unit 145 associates the generated communication identification information with the time when the communication is identified, and stores the communication identifying information in the storage unit 13 as detailed communication information. In response to the communication being specified, the state identifying unit 145 identifies the elapsed time by referring to the detailed communication information and calculating the elapsed time from the time when the communication was first identified to the current time.

Further, the state identifying unit 145 may store the participant identification information in the detailed communication information. The state identifying unit 145 may calculate the average participation time of the participants in the communication based on the participant identification information included in the detailed communication information.

When the state of communication is identified, the state identifying unit 145 stores the communication detailed information in association with the participant identification information of the participants who participate in the communication, the communication position, the topic, and the information indicating the state.

The notification unit 146 notifies the notification information including the information on the specified communication position, topic, participant and state. Specifically, the notification unit 146 refers to the detailed communication information and acquires information relating to the position, topic, participant and state of the communication identified at the current time. The notification unit 146 generates notification information including the acquired information and causes the display unit 12 to display the notification information.

FIG. 4 is a diagram showing a display example of the notification information according to the first embodiment. In the example shown in FIG. 4, it can be confirmed that information indicating the topic of communication, the participants, and the state is displayed in correspondence with the four positions related to the specified communication on the map indicating the position of the venue.

[Effects of First Embodiment]
As described above, in the notification system S according to the first embodiment, the notification device 1 identifies the communication being performed between the plurality of participants existing in the predetermined venue P, and the predetermined venue of the identified communication. And the topic of communication are specified, and the notification information including the specified position and topic is notified. By doing so, the new participant can confirm the notification information, easily identify the communication suitable for himself, and participate in the communication. Therefore, the notification device 1 can support the participation of the new participant in the communication that is occurring in the predetermined venue P as the actual space.

<Second Embodiment>
[Specify communication based only on information acquired from the wireless communication device 3]
Next, the second embodiment will be described. In the first embodiment, the receiving device 2 is provided on a table or the like installed in the predetermined venue P, and the notification device 1 communicates based on the reception status information received from the receiving device 2. I specified that. On the other hand, in the second embodiment, it is specified that the receiving device 2 is not provided in the predetermined venue P and that communication is performed based only on the information that the notification device 1 acquires from the wireless communication device 3. This is different from the first embodiment in that Hereinafter, the notification system S according to the second embodiment will be described. Note that the description of the same parts as those in the first embodiment will be appropriately omitted.

In the present embodiment, the wireless communication device 3 is a mobile terminal such as a smartphone owned by each of the plurality of participants. The mobile terminal is assumed to be capable of transmitting radio waves for short-range wireless communication. Further, the mobile terminal functions as the microphone 4. It is assumed that each of the plurality of participants downloads the communication application by operating the mobile terminal and stores it in the mobile terminal. It is assumed that the mobile terminal is executing the application before communicating at the predetermined venue P. Although the mobile terminal functions as the wireless communication device 3 and the microphone 4 in the present embodiment, the present invention is not limited to this. The mobile terminal may function as the wireless communication device 3, and a device such as a headset connected to the mobile terminal may function as the microphone 4.

The wireless communication device 3 receives a radio wave from another wireless communication device 3 within a predetermined range within which a radio wave corresponding to short-distance wireless communication from a participant reaches. The wireless communication device 3 transmits reception status information, which is information indicating the reception status of radio waves, to the notification device 1. The reception status information according to the second embodiment includes communication device identification information for identifying the wireless communication device 3 on the radio wave receiving side, communication device position information indicating the position of the wireless communication device 3, and received radio waves. The received radio wave intensity, the communication device identification information of the wireless communication device 3 that transmitted the radio wave, and the time when the radio wave is received are included.

The communication identifying unit 141 according to the second embodiment identifies that communication is being performed based on the reception status information received from each of the plurality of wireless communication devices 3. For example, the communication identifying unit 141 indicates that the reception status information acquired from one wireless communication device 3 indicates that radio waves are continuously received from a plurality of wireless communication devices 3, and When all the radio field intensities are equal to or higher than the predetermined intensity, it is specified that the wireless communication device 3 is communicating within the predetermined range.

Here, when the communication specifying unit 141 specifies the communication based on each of the reception status information received from the plurality of wireless communication devices 3, the communication specifying unit 141 may specify the same communication redundantly based on the plurality of reception status information. is there. Therefore, the communication specifying unit 141 performs communication based on, for example, any one of the reception status information received from each of the plurality of wireless communication devices 3 located within the predetermined range. May be specified. Further, the communication specifying unit 141 may specify that communication is being performed based on the position information of each of the plurality of wireless communication devices 3.

Further, when the wireless communication device 3 receives a radio wave corresponding to a communication means having no directivity such as Bluetooth, the wireless communication device 3 located near the wireless communication device 3 participates in another communication. The user may be receiving radio waves emitted by the wireless communication device 3 possessed by the user. In this case, there is a possibility that a participant in another communication may be erroneously recognized as a participant in the same communication.

Therefore, the communication identifying unit 141 may identify the communication based on the voice input status in the plurality of wireless communication devices 3 functioning as the microphone 4. For example, the communication identifying unit 141 analyzes voice information acquired from a plurality of wireless communication devices 3 located within a predetermined range, and identifies voice information in which the coincidence rate of voice intensities of utterances at the same time is a predetermined value or more. The communication identifying unit 141 identifies the wireless communication device 3 from which the identified voice information is acquired. The communication specifying unit 141 specifies that communication is being performed between the participants who own the specified wireless communication device 3.

When the participant identifying unit 142 identifies that communication is being performed based on the voice information, the participant identifying unit 142 causes the participant who has the wireless communication device 3 from which the identified voice information is acquired to participate in the communication. Identify participants as

[Effects of Second Embodiment]
As described above, in the notification system S according to the second embodiment, the notification device 1 specifies that communication is being performed based on the reception status information received from each of the plurality of wireless communication devices 3. By doing so, the notification device 1 can specify the communication even when the reception device 2 is not provided in the predetermined venue P.

In addition, the notification device 1 identifies communication based on the voice input status in the plurality of wireless communication devices 3 functioning as the microphone 4. By doing so, the notification device 1 can reduce the possibility of erroneously recognizing a participant of another communication as a participant of the same communication.

<Third Embodiment>
[Identify preferred communication for new participants]
Subsequently, a third embodiment will be described. In the notification system S according to the third embodiment, the notification device 1 is different from the first embodiment in that a communication preferable for a new participant to participate in is identified and recommended to the new participant.

FIG. 5: is a figure which shows the structure of the notification apparatus 1 which concerns on 3rd Embodiment. As shown in FIG. 5, the control unit 14 further includes a selection unit 147. The selection unit 147 includes information indicating the interest of a new participant who newly participates in communication, a topic corresponding to a communication in which the new participant has participated in the past, or a participation in which communication in which the new participant has participated in the past. Based on the person, the topic, the participant, or the state corresponding to the communication specified by the communication specifying unit 141, the communication in which the new participant should participate is selected.

Specifically, the storage unit 13 first stores participant-related information related to the participant for each of the plurality of participants. Participant-related information includes interest information that the participant is interested in, topics and states corresponding to the communication in which the participant has participated in the past, and participant identification information that identifies the participant who participated in the communication.

The selection unit 147 refers to the participant-related information, and calculates the degree of similarity x1 between the topic of the communication and the interest information corresponding to the new participant for each of the plurality of communication specified by the communication specifying unit 141. The selection unit 147 calculates the similarity x2 between the interest information corresponding to the new participant and the interest information corresponding to the participant of the communication. The selection unit 147 calculates the communication frequency x3 between the new participant and the participant of the communication. Further, the selection unit 147 sets the deviation value x4 of the index (specialty level, excitement level, directionality, elapsed time) indicating the specified communication state with respect to the index indicating the communication state in which the new participant has participated in the past. calculate.

The selection unit 147 calculates a recommended score for each of the plurality of identified communication based on the calculated similarities x1, x2, frequency x3, and deviation value x4, and a new participant participates based on the recommended score. Select communication that encourages

Although the notification unit 146 calculates the recommended score and selects the communication in which the new participant encourages the participation based on the recommended score, the notification unit 146 is not limited to this. For example, the notification unit 146 uses the calculated similarities x1, x2, communication x3, and deviation value x4 as the feature data, and performs machine learning by using the communication in which the participant participates as a positive example and the communication in which the participant did not participate as a negative example. Thus, a learning model may be generated for each participant. The notification unit 146 may select whether or not the new participant should participate in the identified communication by using the learning model corresponding to the new participant. After the communication is finished, the learning model may be generated by performing machine learning with the communication with high satisfaction from the participants as a positive example and the communication with low satisfaction as a negative example.

In the present embodiment, the wireless communication device 3 is a mobile terminal owned by the participant as in the second embodiment. The notification unit 146 transmits the notification information corresponding to the selected communication to the mobile terminal possessed by the new participant and causes the mobile terminal to display the notification information. By doing so, the new participant can be made to understand the preferred communication.

The notification unit 146 may display the communication position and topic identified by the communication identification unit 141 on the mobile terminal possessed by the new participant. Then, when the notification unit 146 receives the selection of at least one of the specified communication from the mobile terminal, the notification unit 146 specifies the related information of at least one of the topic and the participant corresponding to the selected communication and displays the related information. You may notify a portable terminal.

The notification unit 146 may notify the mobile terminal of the text information converted from the voice information corresponding to the selected communication as the related information. In this case, the state specifying unit 145 stores the text information converted from the voice information corresponding to the communication and the time when the communication is specified in the storage unit 13 in association with each other. By doing so, the new participant can understand what kind of communication is being performed in the selected communication, and thus can easily participate in the communication.

In addition, the notification unit 146 may acquire the information related to the characteristic information included in the text information from the external device via the communication network. For example, the notification unit 146 may input the characteristic information included in the text information to the search engine and acquire the information related to the characteristic information from the search engine. Then, the notification unit 146 may notify the mobile terminal of information related to the characteristic information as related information. By doing this, new participants can confirm what kind of information the characteristic information is before they participate in the communication, even if they do not have knowledge about the characteristic information corresponding to the communication. Because it is possible, it becomes easier to participate in the communication.

The notification unit 146 displays the recommended score in association with each communication position and topic when displaying the communication position and topic identified by the communication identifying unit 141 on the mobile terminal possessed by the new participant. Good. In addition, for a communication having a relatively high recommended score, the recommended score or the color of the topic may be changed to change the display mode so that the communication is noticeable.

[Effects of Third Embodiment]
As described above, in the notification system S according to the third embodiment, the notification device 1 has information indicating the interest of a new participant who newly participates in communication, a topic corresponding to the communication in which the new participant has participated in the past, Or, the communication that the new participant should participate based on the participant who participated in the communication in which the new participant has participated in the past and the topic, participant, or state corresponding to the communication specified by the communication specifying unit 141. Select. By doing so, the notification device 1 can select the communication that suits the user's taste based on the participants, the state of the communication, and the like.

Also, the notification device 1 notifies the mobile terminal of the new participant of the notification information regarding the selected communication. By doing so, when a new participant participates in the communication from the middle, the new participant can participate after understanding the background of the communication and related knowledge.

Although the present invention has been described above using the embodiment, the technical scope of the present invention is not limited to the scope described in the above embodiment. It is apparent to those skilled in the art that the above-described embodiments can be combined and various changes or improvements can be added to the above-mentioned embodiments. For example, in the above-described embodiment, the notification device 1 displays the notification information on its own display unit 12, but the present invention is not limited to this. For example, the notification device 1 may display the notification information on a display device connected to itself. Further, in particular, the specific embodiment of the dispersion/integration of the devices is not limited to the one illustrated above, and any or all of them may be arbitrarily added according to various additions or functional loads. The units can be functionally or physically distributed and integrated.

DESCRIPTION OF SYMBOLS 1... Notification device, 11... Communication part, 12... Display part, 13... Storage part, 14... Control part, 141... Communication identification part, 142... Participant identification Part, 143... position specifying part, 144... topic specifying part, 145... state specifying part, 146... notification part, 147... selecting part, 2... receiving device, 3...・Wireless communication device, 4...Microphone, S...Notification system

Claims (14)

A communication specifying unit that specifies communication that is being performed offline among a plurality of participants existing in a predetermined venue,
A position specifying unit that specifies a position of the specified communication in the predetermined venue,
A topic identification unit that identifies the identified communication topic;
As a state of the specified communication, a state specifying unit that specifies the elapsed time from the time when the communication is specified, and the average participation time of the participants in the communication,
The identified location, the topic, and by displaying the notification information including status information indicating the status on a display unit, a notification unit that notifies the notification information,
A notification device comprising. The plurality of participants have wireless communication devices that emit radio waves,
In the predetermined venue, a plurality of receiving devices for receiving the radio waves transmitted by the wireless communication device are installed,
The communication specifying unit acquires reception status information indicating reception status of radio waves in each of the plurality of receiving apparatuses from the plurality of receiving apparatuses, and specifies the communication based on the reception status information.
The notification device according to claim 1. The predetermined venue is provided with a plurality of voice input devices that receive voice input,
The communication specifying unit specifies the communication based on a voice input situation in each of the plurality of voice input devices,
The notification device according to claim 1 or 2. The plurality of participants have wireless communication devices that emit radio waves,
A plurality of receiving devices for receiving radio waves are installed at the predetermined venue,
The position specifying unit specifies a position of the communication based on a position where each of the plurality of receiving devices is installed and information indicating a reception status of a radio wave in each of the plurality of receiving devices.
The notification device according to any one of claims 1 to 3. Further comprising a participant identification unit that identifies the participants participating in the identified communication,
The notification unit notifies the notification information including information related to the identified participant,
The notification device according to any one of claims 1 to 4. The predetermined venue is provided with a plurality of voice input devices that receive voice input,
The topic identification unit converts voice information indicating a voice received by the voice input device into text information, and identifies the identified communication topic based on the text information.
The notification device according to any one of claims 1 to 5. The topic specifying unit specifies a characteristic word indicating a characteristic of the text indicated by the text information by performing a morphological analysis of the text information, and based on the characteristic word, specifies the specified communication topic.
The notification device according to claim 6. The predetermined venue is provided with a plurality of voice input devices that receive voice input,
The state identification unit identifies the excitement degree of the identified communication based on the voice received by the voice input device corresponding to the identified communication, and identifies the excitement degree as the state,
The notification device according to any one of claims 1 to 7 . The state identifying unit identifies, based on the voice received by the voice input device corresponding to the identified communication, whether the utterances of the plurality of participants participating in the identified communication are one-way. , Specify whether the utterance is one-way as the state,
The notification device according to claim 8 . The state identification unit converts the voice information indicating the voice received by the voice input device corresponding to the identified communication into text information, and based on the text information, indicates a degree indicating the specialty of the identified communication. And specify the degree as the state,
The notification device according to claim 9 . Information indicating the interest of a new participant who newly participates in communication, the topic corresponding to the communication in which the new participant has participated in the past, or the participant in which the new participant has participated in the communication in which the new participant has participated in the past, Further comprising a selection unit for selecting a communication that encourages the new participant to participate, based on the topic, the participant, or the state corresponding to the communication specified by the communication specifying unit,
The notification unit notifies the terminal held by the new participant of the notification information corresponding to the selected communication,
The notification device according to any one of claims 1 to 10 . When the notification unit receives a selection of at least one of the communication specified by the communication specifying unit from a terminal possessed by a new participant who newly participates in communication, the topic and the participation corresponding to the selected communication are received. The relevant information of at least one of the persons, and notifies the relevant information to the terminal,
The notification device according to any one of claims 1 to 11 . Computer running,
Identifying offline communication between multiple participants present in a given venue,
Identifying the location of the identified communication at the predetermined venue,
The step of identifying the identified communication topic,
As a state of the identified communication, a step of identifying an elapsed time from the time when the communication is identified, and an average participation time of the participants in the communication,
The position specified, the topic, and by displaying the notification information including status information indicating the status on the display unit, and notifying the notification information,
Notification method comprising. Computer,
A communication identification unit that identifies offline communication between a plurality of participants present in a predetermined venue,
A position specifying unit that specifies the position of the specified communication in the predetermined venue,
A topic identification unit that identifies the identified communication topic ,
As a state of the identified communication, a state identifying unit that identifies an elapsed time from the time when the communication is identified, and an average participation time of the participants in the communication, and
The position specified, the topic, and by displaying the notification information including status information indicating the status on a display unit, a notification unit that notifies the notification information,
Notification program to function as.

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