JPH10285484A - Media information recommended device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a system that provides recommendations for user preference information which is recommended and selected, based on a provisional keyword incidence frequency accumulation of media information and on keyword provision newly arrived media information with a high incidence frequency. SOLUTION: An identification symbol provision means 1 makes reference to a cross reference list, cross-referencing each keyword and its definite identification symbol in a cross- reference list storage means 2, and a transmission means 3 converts an output of the means 1 as program information, including the provided identification symbol corresponding to the keyword acquired from program information 101 and transmits the converted information. A program information addition/information storage means 5 adds and stores sequentially received state program information by a reception means 4. A program recommendation means 7 references a frequency table, denoting incidence frequency with respect to an identification symbol by a frequency table storage means 6, retrieves a program provided with an identification symbol denoting a prescribed incidence frequency or over from the reception state program information, and recommends and indicates (102) for the user. A frequency accumulation means 8 gives a command (104) to the frequency table storage means 6 from the reception state program information, so as to accumulate each incidence frequency with respect to the identification symbol by view channel monitor information 103.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention estimates the preference information of a user based on the cumulative appearance frequency of a keyword added to accessed media information by a user, and obtains new media information having the keyword with a high appearance frequency. The present invention relates to a media information recommendation device for selecting and presenting recommendations to a user.

[0002]

2. Description of the Related Art A system for recommending user preference information which is estimated based on extracted keywords of media information (such as TV program guides distributed over a broadcast wave, a telephone line, a network, Internet information, etc.) which has been proposed. For example, in a conventional media information recommending apparatus disclosed in Japanese Patent Application Laid-Open No. Hei 7-135621, as shown in FIG. 6, a program guide receiving means 21 reads out a broadcast program guide received from a broadcast station or a readout obtained from a program table storing recording medium. From the broadcast program table, desired program information (such as channel number / date / start / end time) of the viewing / recording time zone by the viewer according to the viewing program selection means 22 or candidate program information corresponding to user operation according to the program candidate extraction means 23 (For example, candidate broadcast program information at the time of instruction to select a user). Keyword decomposition means 24
Decomposes the desired / candidate program information selected by the program table receiving means 21 and extracts a keyword. Keyword storage means 2
5 calculates the appearance frequency of the extracted keyword by the keyword decomposition means 24. The priority determining means 26 determines the priority of the program information from the cumulative keyword appearance frequency by the keyword storing means 25 and presents the priority.

The above-described conventional media information recommending apparatus employs a method of managing addition, deletion, and the like on an extraction keyword using a character string of media information accessed by a user on the receiving terminal side, and presenting a recommendation to the user. take.

[0004]

In the conventional media information recommendation apparatus as described above, a method is used in which the receiving terminal manages addition and deletion of the extracted keyword using the character string itself, so that a large storage area is required. Need. In addition, there was a problem that it was necessary to upgrade and maintain the keyword management on all receiving terminals.

[0005] The problem to be solved by the present invention is to solve the above-mentioned problem in the media information recommending apparatus so that the user's preference is given to the keyword added to the accessed media information by the user based on the cumulative appearance frequency. An object of the present invention is to provide a method of estimating information, selecting new media information having a keyword having a high appearance frequency, and presenting the recommended information to a user (a media information recommendation method based on the frequency of an assigned keyword).

[0006]

The media information recommending apparatus of the present invention comprises a transmitting terminal mechanism and a receiving terminal mechanism. To solve the above-mentioned problems, the following means are provided, and the media information recommending apparatus according to the assigned keyword frequency is provided. The method is adopted.

[0007] The correspondence table storage means stores a correspondence table between keywords and their unique identification symbols.

The identification symbol assigning means assigns the identification symbol to a keyword obtained from the keyword-assigned media information by the media information source with reference to the correspondence table stored in the correspondence table storage means. Alternatively, when there is no identification symbol corresponding to the keyword acquired from the media information source and the keyword acquisition media information by referring to the correspondence table by the correspondence table storage means, a new identification symbol for the acquired keyword added by the identification symbol addition means provided separately is added. It instructs the correspondence table storage means to add. Or, when the correspondence table by the correspondence table storage means to be referred to has a registered keyword number equal to or more than a predetermined number, the identification symbol selected by the identification symbol deletion means provided separately, or selected according to the instruction by the deletion identification symbol selection means provided separately, An instruction is issued to the correspondence table storage means and the frequency table storage means via the transmission / reception means to delete the registered keyword and the appearance frequency corresponding to the identification symbol whose appearance frequency is smaller than the predetermined number within the predetermined time.

[0009] The transmitting means transmits the identification symbol-assigned media information by the identification symbol assigning means.

[0010] The receiving means receives information transmitted by the transmitting means.

The media information adding / storing means sequentially adds and stores information at the time of reception by the receiving means.

[0012] The frequency table storage means stores a frequency table indicating the frequency of appearance for the media information addition identification symbol.

The media information recommending means refers to the frequency table stored in the frequency table storing means, retrieves the information at the time of receiving by the media information adding / storage means, and gives the recommendation to the user. do.

The frequency accumulating means instructs the frequency table storing means to accumulate the respective appearance frequencies for the identification symbols obtained from the information at the time of reception by the media information adding / storage means according to the monitoring information from the media information monitoring source.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, when a media information recommending apparatus according to an embodiment of the present invention is applied, for example, as a television program recommending system, as a transmitting terminal, an identification symbol assigning means 1 includes a correspondence table storing means. 2 by referring to the correspondence table shown in FIG. 2B, the program information 101 by the media information source (not shown) shown in FIG.
For example, the identification symbols “11”, “2”, “10”, and “12” corresponding to “drama”, “architect”, “Masaka Tamura”, and “Takuya Kimura” obtained from the group are assigned. The correspondence table storage unit 2 stores a correspondence table between a keyword and its unique identification symbol shown in FIG. The transmitting means 3 converts the information into the program information shown in FIG. 2 (c) including the identification code given by the identification code giving means 1, and transmits it to the receiving terminal. As a receiving terminal, the receiving means 4 receives transmission program information from the transmitting terminal. The program information addition / storage means 5 sequentially adds and stores the reception-time program information shown in FIG. The frequency table storage means 6 is configured as shown in FIG.
As shown in (e), for example, a frequency table indicating the frequency of appearance of the identification symbol of the program information corresponding to the user-viewed TV program is stored. The program recommendation means 7 refers to the frequency table shown in FIG. 2E by the frequency table storage means 6 to obtain, for example, the appearance frequency from the reception-time program information shown in FIG. Is "99" or more identification code "1"
The reception-side program information with the program name "concert", to which "0" is assigned, is searched, and a recommendation 102 is provided to the user.
The frequency accumulating means 8 converts the reception-time program information shown in FIG. 2D by the program information adding / storing means 5 into viewing channel monitoring information 103 by a media information monitoring source (not shown).
For example, "19:00 to 20: 0 on November 20
If you see 8 channels at 0 ”, the broadcast time is“ 11
/ 20 19:00 to 20:00 "/ Each occurrence of the identification code" 11 "," 2 "," 10 ", and" 12 "in the reception-time program information whose program name is" concert "with the channel" 8 " Instruct the frequency table storage means 6 to accumulate the frequency 1
04. There is no need to have a character string of a keyword on the receiving terminal side, so that the storage capacity of the receiving terminal side can be reduced, and required keyword management is collectively performed on the transmitting terminal side, eliminating the need for the receiving terminal side.

The media information recommending apparatus according to the above embodiment estimates the user's preference information based on the cumulative appearance frequency of the keyword added to the accessed media information by the user, and has a keyword having a high appearance frequency. A method of selecting new media information and presenting the recommended information to the user (a media information recommending method based on the frequency of assigned keywords) is adopted.

As shown in FIG. 2A, the program information 101 by the media information generating means (not shown) has, for example, a program name of "concert" / broadcast time of "11/20 19:00".
~ 20: 00 "/ Channel is" 8 "/ Keyword is" Drama "," Architect "," Masawa Tamura "," Takuya Kimura "
It is constituted as.

The correspondence table stored in the correspondence table storage means 2 is shown in FIG.
As shown in (b), for example, the identification symbols corresponding to the keywords “Akira Nishiki”, “Architect”,..., “Masawa Tamura”, “Drama”, and “Takuya Kimura” are “1” and “2”. "," ... "," 10 "," 11 "," 1 "
2 ".

FIG. 2 shows an identification symbol by the identification symbol assigning means 1.
As shown in FIG. 2C, the identification numbers “11” in FIG. 2B corresponding to the keywords “drama”, “architect”, “Masaka Tamura”, and “Takuya Kimura” shown in the program information 101 of FIG. "
“2”, “10”, and “12” are assigned.

As shown in FIG. 2D, the program information at the time of reception by the program information addition / storage means 5 has, for example, a program name "Night 7".
A program called “Time News” has a broadcast time of “11/20
19:00 to 20:00 "/ channel is" 1 "/ identification symbols are" 5 "and" 9 ".

The frequency table stored in the frequency table storage means 6 is shown in FIG.
As shown in (e), the appearance frequencies of the program information-attached identification symbols corresponding to the user-viewed television programs are arranged in descending order, and, for example, programs with the identification symbol “10” are viewed more than the identification symbol “1”. This is indicated by the frequencies “99” and “98”.

In the embodiment of the invention shown in FIG. 1, the identification symbol assigning means 1 is configured as an identification symbol assigning means 1a as shown in FIG. 3A, and the program information 10 shown in FIG.
By referring to the correspondence table shown in FIG. 3B by the correspondence table storage means 2 from 1, for example, identification corresponding to each acquired keyword of “Drama”, “Architect”, “Masawa Tamura” and “Takuya Kimura” A request 105 is made to add an identification symbol corresponding to the acquired keyword "Takuya Kimura" having no symbol, and a new identification symbol is added to the acquired keyword by an identification symbol adding means 9 provided separately, and an addition command is issued to the correspondence table storage means 2a. 106, and the correspondence table is changed from FIG. 3 (b) to FIG. 2 (b).
May be updated. It is possible to cope with newly arrived media information having a keyword to which the new identification symbol is added.

In the embodiment of the invention shown in FIG. 3A, the identification symbol assigning means 1a is constituted as the identification symbol assigning means 1b as shown in FIG. When the number of registered keywords in the correspondence table exceeds a predetermined value, for example, a deletion request 107 for the first registered keyword “Akira Nishiki” and the corresponding identification symbol “1” in the correspondence table shown in FIG. For example, a command 108 is issued by the symbol deletion means 10 to delete the correspondence between the head registration keyword and the identification symbol.
4B is updated from FIG. 4B to FIG. 4B, and the frequency table deletion / storage means 6a provided in place of the frequency table correspondence means 6 via the transmission means 3 and the reception means 4 according to the deletion command 108 and the deletion command identification symbol The frequency “98” for “1” may be deleted, and the frequency table may be updated from FIG. 2 (e) to FIG. 4 (c). The storage capacity based on the correspondence table / frequency table on the transmitting / receiving terminal side can be prevented from increasing more than a predetermined amount.

Further, in the embodiment of the invention shown in FIG. 4A, the identification symbol providing means 1b is configured as an identification symbol providing means 1c as shown in FIG. 5 (b) by referring to the appearance time storage means 12 for storing the correspondence between the identification symbol separately provided from the program information 101 whose broadcast time is "11/20 19:00 to 20:00" and the last appearance time. ), The correspondence between the identification symbol and the last appearance time is, for example, “Drama”,
Each of the identification symbols “11” assigned to each of the acquired keywords “Architect”, “Masawa Tamura” and “Takuya Kimura”,
Change command 1 for updating the final appearance times of “2”, “10” and “12” to “11/20 20:00” which is the broadcast end time of the broadcast time as shown in FIG.
In addition, when the number of registered keywords exceeds a predetermined number in the correspondence table storage unit 2 to be referred to and the deletion request 107 is issued, the identification symbol deletion unit 10a performs deletion, and when the deletion identification symbol is selected from the correspondence table by the correspondence table storage unit 2, By referring to the appearance time storage means 12 in place of the head registration keyword, the identification symbol whose appearance frequency is smaller than a predetermined number in the past predetermined period (for example, the oldest identification symbol among the final appearance times shown in FIG. 5C) The correspondence table may be updated by issuing a deletion command 108 so as to delete according to the selection request 110 by the separately provided deletion identification symbol selecting means 11 for selecting “1”). Although the above embodiment has been described with reference to the case of a registered keyword whose appearance number in the past month is 0, it goes without saying that the reference of the final appearance time of the deleted data may be shortened or lengthened. Nor. However, when deleting a registered keyword whose appearance frequency within a predetermined period in the past is not 0, it is necessary to take a log of the past appearance frequency. The registered keyword and appearance frequency corresponding to the selected identification symbol can be managed more efficiently.

In the embodiment of the invention shown in FIGS. 1, 3 (a), 4 (a) and 5 (a), the media information recommending apparatus has been described as applied to a television program recommending system. Needless to say, the present invention may be applied to a broadcasting system such as a terrestrial wave or a satellite wave, a data distribution service system utilizing a network environment (for example, an electronic shopping system, an electronic newspaper system, and the like).

[0026]

In the media information recommending apparatus of the present invention as described above, the user's preference information is estimated based on the cumulative appearance frequency of the identification symbol corresponding to the keyword assigned to the accessed media information by the user. Since a method of selecting newly arrived media information having a keyword having a high frequency of appearance and presenting the recommended information to a user is adopted, a receiving terminal for an extracted keyword using a character string of media information accessed by a user as in the related art is used. Compared to the method of managing addition, deletion, etc. on the receiving side, there is no need to have a character string of the keyword on the receiving terminal side, the storage capacity on the receiving terminal side can be reduced, and the required keyword management is centralized on the transmitting terminal side. In addition, there is no need to perform the processing on the receiving terminal side, and the following effects are obtained for each invention. (1) By assigning a new identification code to the keyword that is not included in the reference table to be referenced and issuing an addition command, it is possible to deal with new media information having a keyword to which the new identification symbol is assigned. (2) If the number of registered keywords to be referred to exceeds a predetermined number of registered keywords, a command to delete the registered keywords corresponding to the identification symbols to be selected and the appearance frequency is issued, so that the correspondence table / frequency on the transmission / reception terminal side is deleted. The storage capacity of the table can be prevented from increasing more than a predetermined amount. (3) Instead of the identification symbol selected in (2) above, by using an identification symbol whose appearance frequency within a predetermined time in the past is smaller than a predetermined value, the registered keyword and the appearance frequency corresponding to the selected identification symbol can be determined. Can be managed more efficiently.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a media information recommending apparatus according to an embodiment of the present invention.

FIG. 2 shows program information by an input unit, a correspondence table by a correspondence table storage unit, an identification symbol by an identification symbol assignment unit, program information at reception by a program information addition / storage unit, and a frequency table by a frequency table storage unit shown in FIG. FIG.

FIG. 3 is a functional block diagram showing another embodiment of the present invention, and a diagram for explaining a correspondence table by the correspondence table storage means.

FIG. 4 is a functional block diagram showing another embodiment of the present invention, and a diagram for explaining a correspondence table by the correspondence table storage means and a frequency table by the frequency table deletion / storage means.

FIG. 5 is a functional block diagram showing another embodiment of the present invention, and a diagram for explaining before and after updating the correspondence between the identification symbol and the last appearance time in the appearance time storage table.

FIG. 6 is a functional block diagram of a media information recommendation device showing a conventional technique.

[Explanation of symbols]

1, 1a, 1b, 1c identification symbol assigning means, 2 correspondence table storage means, 3 transmission means, 4 reception means, 5 program information addition / storage means, 6 frequency table storage means, 6a frequency table deletion / storage means, 7 programs Recommended means, 8 Frequency accumulation means, 9
Identification symbol addition means, 10 Identification symbol deletion means, 11
Deletion identification symbol selection means, 12 appearance time storage means, 10
1 program information, 102 recommended program presentation, 103 viewing channel monitoring information, 104 total command, 105 addition request, 106 addition command, 107 deletion request, 108 deletion command, 109 deletion command, 110 change command, 110 selection request. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (4)

[Claims] 1. A correspondence table storage means for storing a correspondence table between a keyword and its unique identification symbol, and a keyword acquired from keyword-added media information by a media information source by referring to a correspondence table stored in the correspondence table storage means. A transmitting terminal mechanism provided with an identification symbol assigning means for assigning the identification symbol, a transmitting means for transmitting the identification symbol imparting media information by the identification symbol assigning means, and a reception for receiving the transmission information by the transmitting means of the transmission terminal mechanism Means for adding and storing information at the time of reception by the receiving means.
A storage means, a frequency table storage means for storing a frequency table indicating the frequency of appearance for the media information addition identification symbol, and referring to the frequency table by the frequency table storage means, the identification symbol having a high appearance frequency is assigned. Media information recommendation means for retrieving information at the time of reception by the media information addition / storage means and presenting the information to the user, and an identification symbol obtained from the information at the time of reception by the media information addition / storage means according to the monitoring information by the media information monitoring source And a frequency accumulating means for instructing the frequency table storage means to accumulate the respective appearance frequencies of the media information. 2. An identification symbol adding unit refers to a correspondence table stored in a correspondence table storage unit and assigns a keyword by a media information source. If there is no identification symbol corresponding to a keyword acquired from the media information, the identification symbol is added by a separately provided identification symbol adding unit. 2. The media information recommendation device according to claim 1, wherein the correspondence table storage unit is instructed to add a new identification symbol for the acquired keyword. 3. When the correspondence table stored in the correspondence table storage means referred to by the identification symbol assigning means has a predetermined number of registered keywords or more, the registered keyword corresponding to the identification symbol selected by the separately provided identification symbol deletion means and the appearance frequency. 3. The media information recommendation apparatus according to claim 2, wherein a command is issued to the correspondence table storage means and the frequency table storage means via the transmission / reception means so as to delete the following. 4. When the correspondence table stored in the correspondence table storage means referred to by the identification symbol assigning means has the number of registered keywords equal to or greater than a predetermined number, a separately provided deletion identification is provided instead of the identification symbol selected by the separately provided identification symbol deletion means. 4. An identification symbol selected in accordance with an instruction from a symbol selection means and having a number of appearances less than a predetermined number in a past predetermined time is used.
Media information recommendation device described.