JP7482562B2 - Presentation Support System - Google Patents

Description

This invention relates to a system. More specifically, this invention relates to a system that uses a computer to enable machine-based presentations and allows even ordinary presenters to give effective presentations.

JP 2002-259635 A describes a system that displays keywords from comments made by discussion participants during the discussion process by combining graphic objects and text.

JP 2017-224052 A describes a presentation evaluation device.

JP 2002-259635 A JP 2017-224052 A

The purpose of this invention is to provide a presentation support system that enables machine-based presentations and even ordinary presenters to give effective presentations.

We had multiple MRs, cram school instructors, and salesmen use the same presentation materials (for example, PowerPoint (registered trademark)) to make sales pitches. We found that excellent presenters, such as excellent MRs, excellent cram school instructors, and excellent salesmen, had certain patterns in the order of appearance of keywords on each page of their presentation materials. On the other hand, we found that it was difficult to categorize the order of appearance of keywords for less excellent presenters.

The above problem is basically based on the knowledge that the optimal order in which to use keywords can be determined by recording, etc., a presentation by someone who has given a presentation appropriate to a certain situation for certain presentation materials, analyzing the terms contained in the presentation, and analyzing the order in which keywords appear in the analyzed terms. This invention is based on the knowledge that by clearly indicating the order in which keywords are registered in the explanations of excellent presenters, a certain level of quality can be ensured whether the presentation is given by a machine or an average presenter.

The invention described in this specification relates to a presentation support system. This system uses a computer.

This system includes a display unit 3, a material storage unit 5, an audio storage unit 7, an audio analysis unit 9, a keyword order adjustment unit 11, and a display control unit 13. Each unit in this specification can be realized by each means or element in a computer. They may be realized by software or hardware, or by a combination of software and hardware.

The material storage unit 5 is an element for storing presentation materials and a plurality of keywords relating to the presentation materials.
The audio storage unit 7 is an element for storing a presentation including audio information related to the presentation material.
The voice analysis unit 9 is an element for analyzing terms contained in the presentation stored in the voice storage unit 7 .
The keyword order adjustment unit 11 is an element for analyzing the order of appearance of multiple keywords contained in the voice analyzed by the voice analysis unit 9, and changing the order of the multiple keywords based on the analyzed order of appearance.
The display control unit 13 is an element for controlling the contents to be displayed on the display unit 3. The display control unit 13 controls the display unit 3 to display a plurality of keywords based on the order of the plurality of keywords changed by the keyword order adjustment unit 11.

In a preferred example of this system, the material storage unit 5 further stores an explanatory text about the presentation material. The explanatory text about the presentation material includes a plurality of keywords. The system 1 further includes an explanatory text update unit 15 that updates the explanatory text based on the order of the plurality of keywords changed by the keyword order adjustment unit.

In a preferred example of this system, the material storage unit 5 further stores one or more related words related to each of the plurality of keywords.
The system further includes a keyword adjustment unit 17. The keyword adjustment unit 17 is an element for adjusting the multiple keywords stored in the material storage unit 5, when it is determined that, for each of the multiple keywords, a related word of a certain keyword is used more frequently than a certain keyword included in the multiple keywords based on the terms analyzed by the speech analysis unit, the related word is used as a new keyword instead of the certain keyword.

A preferred example of this system further includes a keyword candidate extraction unit 19. The keyword candidate extraction unit 19 is an element that analyzes the frequency of multiple keywords and terms other than related words for the terms analyzed by the speech analysis unit 9, and extracts frequently occurring terms as new keywords or candidates for new keywords.

In a preferred example of this system, the material storage unit 5 further stores one or more related words related to each of the multiple keywords. Then, this system (or the keyword candidate extraction unit 19 of this system) extracts, for each of the multiple keywords, the related word of a certain keyword that is used more frequently than a certain keyword included in the multiple keywords, as a new keyword candidate, based on the terms analyzed by the speech analysis unit.

A preferred example of this system further includes an alert output unit 21 that outputs an alert when the terms contained in the presentation analyzed by the speech analysis unit 9 differ from the order of the multiple keywords.

One invention described in this specification relates to a computer program. This program is a program for causing a computer to function as the above-mentioned presentation support system. Specifically, this program causes a computer to:
A display means;
a material storage means for storing a presentation material and a plurality of keywords related to the presentation material;
an audio storage means for storing a presentation including audio information relating to the presentation material;
a speech analysis means for analyzing terms contained in the presentation stored in the speech storage means;
a keyword order adjustment means for analyzing an appearance order of a plurality of keywords included in the voice analyzed by the voice analysis means and changing the order of the plurality of keywords based on the analyzed appearance order;
A display control means for controlling the content to be displayed on the display means,
The display control means controls the display means to display the plurality of keywords based on the order of the plurality of keywords changed by the keyword order adjustment means.
This is a program for causing a computer to function as the presentation support system. This program is for causing a computer to function as the above-mentioned system.

The invention described in this specification relates to a computer-readable information recording medium that stores the above-mentioned program.

This invention can provide a presentation support system that enables machine-based presentations and allows even ordinary presenters to give effective presentations.

FIG. 1 is a block diagram showing an example of the configuration of a presentation support system. FIG. 2 is a block diagram showing the basic configuration of a computer. FIG. 3 is a conceptual diagram showing an example of a system according to the present invention. FIG. 4 is a conceptual diagram showing an example of a display of presentation materials. FIG. 5 is a conceptual diagram showing keywords in a word order adjusted by the keyword order adjustment unit. FIG. 6 is a conceptual diagram showing an example of a display screen having an explanatory text display area.

Below, the embodiments for carrying out the present invention will be explained using the drawings. The present invention is not limited to the embodiments described below, but also includes appropriate modifications of the embodiments below within the scope that would be obvious to a person skilled in the art.

The invention described in this specification relates to a presentation support system. This system uses a computer.

Figure 1 is a block diagram showing an example of the configuration of a presentation support system. As shown in Figure 1, this system 1 includes a display unit 3, a material storage unit 5, an audio storage unit 7, an audio analysis unit 9, a keyword order adjustment unit 11, and a display control unit 13. Note that this system may further include an explanatory text update unit 15, a keyword adjustment unit 17, a keyword candidate extraction unit 19, and an alert output unit 21, as shown in Figure 1, and may also include various elements provided in a computer as appropriate.

Each part in this specification can be realized by each means or element in a computer. They may be realized by software or hardware, or by a combination of software and hardware. This system may be implemented by a computer, or by a server-client system using a computer and a server. The computer may be any one of or a combination of two or more of a mobile terminal, a desktop personal computer, and a server. These are usually connected so that information can be exchanged via the Internet (intranet) or the like. Functions may be shared by using multiple computers, such as having some functions assigned to one computer.

Figure 2 is a block diagram showing the basic configuration of a computer. As shown in this figure, the computer has an input unit 31, an output unit 33, a control unit 35, a calculation unit 37, and a storage unit 39, and each element is connected by a bus 41 or the like so as to be able to exchange information. For example, the storage unit may store a control program or various information. When specific information is input from the input unit, the control unit reads out the control program stored in the storage unit. The control unit then reads out the information stored in the storage unit as appropriate and transmits it to the calculation unit. The control unit also transmits the input information as appropriate to the calculation unit. The calculation unit performs calculation processing using the various information received and stores it in the storage unit. The control unit reads out the calculation results stored in the storage unit and outputs them from the output unit. In this way, various processing is performed. The various processing is performed by each means.

Figure 3 is a conceptual diagram showing an example of a system of the present invention. As shown in Figure 3, the system of the present invention (a system including the device of the present invention) may include a mobile terminal 45 connected to the Internet or an intranet 43, and a server 47 connected to the Internet or an intranet 43. Of course, a single computer or mobile terminal may function as the device of the present invention, and multiple servers may exist.

The display unit 3 is an element for displaying various types of information based on a computer. A monitor or display, which is a type of computer output unit 33, or a touch panel of a smartphone functions as the display unit 3. The display unit 3 may be a projector. When giving a presentation, the monitor of a computer or tablet may function as the display unit 3, or the presentation materials may be projected by a projector. In this case, as described below, the monitor may display not only the presentation materials, but also information on the word order of keywords and/or an explanation.

The material storage unit 5 is an element for storing presentation materials and multiple keywords related to the presentation materials. The storage unit of a computer functions as the material storage unit 5. Examples of presentation materials are materials created using PowerPoint (registered trademark) or PDF (registered trademark). Presentation materials can mean a whole series of materials (a certain file) created using software such as PowerPoint (registered trademark), or a specific page. For example, an identification number or ID is assigned to each presentation material. In the material storage unit 5, multiple keywords are stored in association with the assigned information (identification number or ID), or the identification number and page number (slide number). In this way, each presentation material or each page (each slide) of each material is associated with multiple keywords related to each presentation material and stored.

An example of a presentation material is a PowerPoint presentation on a new drug X for diabetes. Examples of multiple keywords related to the presentation material are the keywords related to the PowerPoint material: "diabetes," "X," "dosage," "side effects," "dizziness," "drowsiness," "pregnant women" (for whom the drug should not be administered), and "under 19 years of age" (for whom the drug should not be administered). These are stored in the material storage unit 5, for example, in association with the identification number (and each page number) of the presentation material.

Figure 4 is a conceptual diagram showing an example of the display of presentation materials. In this example, a presentation area 51 that displays a page of presentation materials created using PowerPoint, for example, and a keyword display area 53 that displays keywords are displayed on the display unit 3. For example, the display image of the presentation area 51 is displayed on a projector or the other party's monitor (the other party's display unit). Examples of the other party's display unit are the other party's monitor, a display for multiple students, and a display for multiple audience members.

The audio storage unit 7 is an element for storing a presentation including audio information related to the presentation materials. The storage unit of the computer functions as the audio recording unit 7. The presentation is the audio and video of a presenter giving an explanation based on the presentation materials. The presentation may be audio information that is converted into electrical information and input to the computer via a sound collection device such as a microphone (computer input unit). The presentation may also be video and audio information that is converted into electrical information and input to the computer via a recording device such as a video recorder. In this way, the audio information (and video) input from the computer input unit is stored in the storage unit that serves as the audio storage unit 7.

The voice analysis unit 9 is an element for analyzing terms included in the presentation stored in the voice storage unit 7. The voice analysis unit 9 is implemented, for example, by a control program stored in the storage unit. Voice recognition devices are well known. For this reason, the voice analysis unit can appropriately use a well-known voice recognition device. For example, the voice information of the presentation stored in the voice recording unit 7 is read. Then, the control unit of the computer reads the control program stored in the storage unit and causes the calculation unit to analyze the read voice information. At this time, it is sufficient to read the multiple terms and the voice information of the terms stored in the storage unit and analyze the terms included in the presentation. Then, it is sufficient to store the analyzed terms in the storage unit as appropriate. In this way, the voice analysis unit 9 can analyze the terms included in the presentation stored in the voice storage unit 7.

For example, terms included in the presentation may be analyzed and stored in the memory unit along with information about the person who gave the presentation and the person receiving the presentation. Information about the person who gave the presentation may be stored in the memory unit. Examples of information about the person who gave the presentation include employee number, name, gender, age, sales performance, job title, hometown, evaluation of the presentation, years of service, and years in charge. Examples of information about the person receiving the presentation include the size of the hospital, the region of the hospital, whether it is a lecture or for a single doctor, and (if for a doctor) information about the doctor. Other examples of information about the person receiving the presentation include the region of the lecture, the level of the participants, the grade of the participants, the number of participants, the occupation of the participants, the job content of the participants, the years of service, and the position of the participants.

The keyword order adjustment unit 11 is an element that analyzes the order of appearance of multiple keywords contained in the voice analyzed by the voice analysis unit 9, and changes the order of the multiple keywords based on the analyzed order of appearance. The voice analysis unit 9 analyzes the terms contained in the presentation and stores them in the memory unit. Meanwhile, multiple keywords are also stored in the material memory unit 5. The keyword order adjustment unit reads these and determines whether a term matches multiple keywords, thereby determining the order of appearance of the multiple keywords.

The keyword order adjustment unit 11 may include a machine learning program. It may be configured to automatically analyze the term data stored in the storage unit and automatically adjust the registration order of multiple keywords according to instructions from the machine learning program. Such machine learning programs are well known.

For example, if the keywords appear in the following order in a presentation by a certain presenter, "X," "diabetes," "pregnant woman," "under 19 years old," "side effects," "dizziness," "drowsiness," and "dosage," the order in which these keywords were applied is stored in the memory unit along with information about the presenter. This can be done, for example, by collecting the order in which keywords appear in presentations by medical representatives or cram school instructors who have had good sales results in the Tokyo area, memorizing that word order, and adjusting the order of the keywords before storing it in the memory unit.

Figure 5 is a conceptual diagram showing keywords in the word order adjusted by the keyword order adjustment unit. In this example, the keywords are changed in the order of "X", "diabetes", "pregnant woman", "under 19 years old", "side effects", "dizziness", "drowsiness", and "dosage", and are tagged with "Tokyo area" and "popular MR" and stored together. Since tags are added in this way, it is possible to read out keywords in the above word order, for example, using search information for popular MR. Also, it is possible to read out keywords in the above word order, for example, using search information for "Tokyo area. popular MR".

The display control unit 13 is an element for controlling the content to be displayed on the display unit 3. The display control unit 13 controls the display unit 3 to display multiple keywords based on the order of multiple keywords changed by the keyword order adjustment unit 11. This makes it possible to customize the order of keywords. For example, by using the attributes of the presenter, the order of keywords can be customized to suit various purposes, such as for good speakers and bad speakers, for large hospitals and small hospitals, for specialists and general doctors, for hospitals in Tokyo and hospitals in the countryside, etc. This display control unit 13 makes it possible to produce a display such as that shown in Figure 5.

In a preferred example of this system, the material storage unit 5 further stores an explanatory text about the presentation material. The explanatory text about the presentation material includes a plurality of keywords. The system 1 further includes an explanatory text update unit 15 that updates the explanatory text based on the order of the plurality of keywords changed by the keyword order adjustment unit.

Figure 6 is a conceptual diagram showing an example of a display screen having an explanatory text display area. As shown in Figure 6, in this example, explanatory text is created in the order of the keywords displayed in the keyword display area 53, and is displayed in the explanatory text display area 55. This explanatory text display area 55 may be displayed only on the presenter's display unit 3, or may also be displayed on the other party's display unit, or it may be possible to switch between displaying or not displaying the other party's display. Such control can be easily performed by using a computer that has a program that performs such processing implemented.

For example, if a machine (robot) has an audio output unit, the explanatory text (or the text contained therein) stored in the material storage unit 5 can be output as audio using the audio output unit, allowing the machine to give a presentation. In this way, the use of this invention makes it possible to have the machine give the most optimal presentation.

In a preferred example of this system, the material storage unit 5 further stores one or more related words related to each of the multiple keywords. The related words here include not only terms having the same meaning, but also terms that express a similar meaning by using the same term. The system further includes a keyword adjustment unit 17. The keyword adjustment unit 17 is an element for adjusting the multiple keywords stored in the material storage unit 5 so that, when it is determined that a related word of a certain keyword was used more frequently than a certain keyword included in the multiple keywords based on the terms analyzed by the speech analysis unit, the related word is replaced with the certain keyword and becomes a new keyword. If there is a frequently used related word for a keyword included in the explanatory notes or script of the presentation, it can be replaced with that related word. This makes it possible to flexibly respond to changes in the times. This also makes it possible to flexibly respond to dialects. A dictionary of related words for each keyword is prepared, and if a keyword other than the first candidate is used more frequently, the keyword can be changed. In this case, a related word of a certain keyword may be stored in the material storage unit as a new keyword, and the certain keyword may be stored as a related word of the new keyword. In this way, keywords related to a presentation material and related words related to those keywords can be updated.

If there is a "characteristic term even if it is infrequent," it may be stored as a keyword in the material storage unit. Whether or not a term is characteristic may be determined, for example, by preparing a database of keyword candidates, and if a term contained in the database is included in the terms analyzed by the speech analysis unit, that term may be set as a new keyword. In this way, if there is an unknown keyword that is not registered in the keyword dictionary, it may be indicated that there is an unknown keyword. Then, if there is an input from the input unit, that unknown keyword may be registered in the dictionary as a new keyword.

For example, suppose that multiple presentations are recorded and the terms are analyzed, and that "pregnancy" is used more frequently than "pregnant woman." In this case, the material storage unit 5 stores related words such as "pregnancy," "pregnancy," and "big belly" in association with the keyword "pregnant woman." The calculation unit reads out the frequency with which these presentations were made from the storage unit and performs calculation processing. As a result, the computer can determine that "pregnancy" was used more frequently than "pregnant woman." The keyword stored in the material storage unit 5 is then updated from "pregnant woman" to "pregnancy," and the keyword displayed in the keyword display area 53 and the explanatory text displayed in the explanatory text display area 55 may be automatically updated accordingly. In this case, for example, the original keyword "pregnant woman" may be stored in the material storage unit as an associated word of "pregnancy," which is a new keyword related to this presentation material.

A preferred example of this system further includes a keyword candidate extraction unit 19. The keyword candidate extraction unit 19 is an element for analyzing the frequency of multiple keywords and terms other than related words for the terms analyzed by the speech analysis unit 9, and extracting frequently occurring terms as new keywords or new keyword candidates. This allows keywords to be displayed in the presentation, and any frequently used terms other than the keywords and their related words are used as new keywords or new keyword candidates. The frequency may be, for example, higher than any of multiple keywords related to a certain presentation material, or higher than any of all keywords. Such keywords are important terms for making a presentation effective, and therefore make it possible to make the presentation smoother.

The keyword candidate extraction unit 19 may include a machine learning program. In accordance with instructions from the machine learning program, the term data stored in the memory unit may be automatically analyzed, and frequently occurring terms may be automatically extracted as new keyword candidates. Such machine learning programs are well known. The automatically extracted new keywords or keyword candidates may be displayed on the display unit 3 as appropriate. When keyword candidates are displayed on the display unit, and information regarding approval from an administrator or the like is input to the computer, the approved keyword candidate may be stored in the memory unit in response to the instruction as one of the keywords related to the presentation materials (or a certain page thereof).

In a preferred example of this system, the material storage unit 5 further stores one or more related words related to each of the multiple keywords. Then, this system (or the keyword candidate extraction unit 19 of this system) extracts, for each of the multiple keywords, the related word of a certain keyword that is used more frequently than a certain keyword included in the multiple keywords, as a new keyword candidate, based on the terms analyzed by the speech analysis unit.

For example, if a presentation contains products A and B, "product C," a drug made by another company for the same target disease that is a related word to the keywords "product A" and "product B," is stored in the material storage unit 5 as one of the related words for each. If the presentation contains the terms "product A" and "product C," "product C" is extracted as a new keyword (or keyword candidate) from the multiple related words stored in the material storage unit 5 as a new candidate keyword for the presentation material. The processing that follows after the new keyword or new keyword candidate is extracted is the same as that described above.

A preferred example of this system further includes an alert output unit 21 that outputs an alert when the terms contained in the presentation analyzed by the speech analysis unit 9 differ from the order of the multiple keywords.

In this example, the system reads presentation materials from the storage unit and displays them on the display unit. The system reads the order of keywords related to the materials (or the page on which the materials are located) from the storage unit. The presenter's presentation is then input from an input unit such as a microphone. The audio analysis unit analyzes the input presentation and identifies the terms. It then determines whether the term is a keyword (or related word) or not a keyword (or related word). If the analyzed term is a keyword (or related word), it determines whether the term is in the correct order of the keywords. If the terms are in the correct order of the keywords, processing continues. On the other hand, if the keywords are not in the correct order, an alert is output. An example of an alert is to highlight the correct keyword in the keyword display area 53.

An invention described in this specification relates to a computer program and an information recording medium (such as a CD-ROM) storing the program. This program is basically a computer-readable program for making a computer function as any of the presentation support systems described above. For example, such a program is a program for making a computer function as a presentation support system that includes a display means, a material storage means for storing presentation materials and a plurality of keywords related to the presentation materials, an audio storage means for storing a presentation including audio information related to the presentation materials, an audio analysis means for analyzing terms included in the presentation stored by the audio storage means, a keyword order adjustment means for analyzing the order of appearance of the plurality of keywords included in the audio analyzed by the audio analysis means and changing the order of the plurality of keywords based on the analyzed order of appearance, and a display control means for controlling the contents to be displayed on the display means, and the display control means controls the display means to display the plurality of keywords based on the order of the plurality of keywords changed by the keyword order adjustment means. The various means correspond to the various parts of the system described above.

This program may be such that the material storage means further stores an explanatory text about the presentation material, the explanatory text about the presentation material includes a plurality of keywords, and the computer further functions to have an explanatory text update means for updating the explanatory text based on the order of the plurality of keywords changed by the keyword order adjustment means.

This program may be such that the material storage means further stores one or more related words related to each of the multiple keywords, and when the computer determines, based on the terms analyzed by the speech analysis means, that for each of the multiple keywords, a related word of a certain keyword is used more frequently than a certain keyword included in the multiple keywords, the computer further functions to include a keyword adjustment means for adjusting the multiple keywords stored in the material storage means so that the related word becomes a new keyword in place of the certain keyword.

This program may also cause the computer to function as having a keyword candidate extraction means for analyzing the frequency of multiple keywords and terms other than related words for the terms analyzed by the speech analysis means, and extracting frequently occurring terms as candidates for new keywords.

The program may also cause the computer to function as having an alert output means for outputting an alert when the terms contained in the presentation analyzed by the voice analysis means differ from the order of the multiple keywords.

This invention relates to a presentation support system and can be used in information-related industries.

Reference Signs List 1 Presentation Support System 3 Display Unit 5 Document Storage Unit 7 Audio Storage Unit 9 Audio Analysis Unit 11 Keyword Order Adjustment Unit 13 Display Control Unit 15 Explanation Update Unit 17 Keyword Adjustment Unit 19 Keyword Candidate Extraction Unit 21 Alert Output Unit

Claims (8)

A display unit (3);
a material storage unit (5) for storing a presentation material and a plurality of keywords related to the presentation material;
a voice storage unit (7) for storing a presentation including voice information related to the presentation material;
A presentation support system (1) including a voice analysis unit (9) that analyzes terms included in the presentation stored in the voice storage unit,
The system comprises:
a keyword order adjustment unit (11) that analyzes the order of appearance of the plurality of keywords included in the voice analyzed by the voice analysis unit and changes the order of the plurality of keywords based on the analyzed order of appearance;
a keyword candidate extraction unit (19) that analyzes the frequency of terms other than the plurality of keywords for the terms analyzed by the speech analysis unit (9) and extracts frequently occurring terms as new keywords or candidates for new keywords;
Presentation support system (1). 2. The system of claim 1,
The material storage unit (5) further stores explanatory text regarding the presentation material,
an explanatory text about the presentation material including the plurality of keywords;
The system comprises:
The method further includes an explanation update unit (15) that updates the explanation based on the order of the multiple keywords changed by the keyword order adjustment unit (11).
system. 3. The system according to claim 1 or 2,
The material storage unit (5) further stores one or more related words related to each of the plurality of keywords,
The system further includes a keyword adjustment unit (17) that adjusts the plurality of keywords stored in the material storage unit (5) when it is determined that a related word of a certain keyword is used more frequently than a certain keyword included in the plurality of keywords based on the terms analyzed by the speech analysis unit, so that the related word becomes a new keyword instead of the certain keyword.
system. 3. The system of claim 2,
A display control unit (13) that controls the content to be displayed on the display unit (3),
the display control unit (13) controls the display unit (3) to display the plurality of keywords based on the order of the plurality of keywords changed by the keyword order adjustment unit (11);
system. 2. The system of claim 1,
The material storage unit (5) further stores one or more related words related to each of the plurality of keywords,
The system extracts, for each of the plurality of keywords, a related word of a certain keyword that is used more frequently than a certain keyword included in the plurality of keywords, based on the terms analyzed by the speech analysis unit, the related word as a new keyword or a candidate for a new keyword. Computer,
A display means;
a material storage means for storing a presentation material and a plurality of keywords related to the presentation material;
an audio storage means for storing a presentation including audio information relating to said presentation material;
a speech analysis means for analyzing terms included in the presentation stored in said speech storage means;
a keyword order adjusting means for analyzing an order of appearance of the plurality of keywords included in the voice analyzed by the voice analysis means and changing the order of the plurality of keywords based on the analyzed order of appearance;
A display control means for controlling the content to be displayed on the display means;
a keyword candidate extraction means for analyzing the frequency of terms other than the plurality of keywords among the terms analyzed by the speech analysis means and extracting frequently occurring terms as new keywords or candidates for new keywords;
A program that functions as a presentation support system. The program according to claim 6,
the material storage means further stores one or more related words related to each of the plurality of keywords;
the presentation support system further comprises a keyword adjustment means for adjusting the plurality of keywords stored in the material storage means, when it is determined that a related word of a certain keyword is used more frequently than a certain keyword included in the plurality of keywords based on the terms analyzed by the voice analysis means, so that the related word becomes a new keyword instead of the certain keyword;
program. A computer-readable information recording medium storing the program according to claim 6 or 7.

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