JP3801101B2 - Preference information extraction method, apparatus, and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a preference information extraction method, apparatus, and program, and more particularly, to a preference information extraction method, apparatus, and program for extracting preference information indicating the degree of viewer preference for a program.
[0002]
[Prior art]
Conventionally, the audience rating is measured for a state where a viewer is watching a program being broadcast by matching channels on a television.
[0003]
[Problems to be solved by the invention]
However, the conventional technique does not take into consideration repeated reproduction by the recording apparatus. In recent years, personal video recorders (PVR: Personal Video Recorder) using a large-capacity hard disk have been provided to viewers, and viewers have more opportunities to play and watch programs. There is a problem that it cannot be extracted sufficiently.
[0004]
The present invention has been made in view of the above points, and an object of the present invention is to provide a preference information extraction method, apparatus, and program capable of accurately extracting the degree of viewer preference for broadcasting and recording.
[0005]
[Means for Solving the Problems]
FIG. 1 is a diagram for explaining the principle of the present invention.
[0006]
The present invention (Claim 1) is a preference information extraction method for extracting preference information indicating the degree of viewer preference for a program.
A program information acquisition process (step 1) for acquiring program information related to a program from a TV viewing device or a recording / playback device and storing it in a database;
Viewing information acquisition process (step 2) of acquiring viewing information indicating the viewing state of the viewer and storing it in the database;
A preference information generation process for acquiring program recording date / time and program playback date / time as viewing information, generating preference information based on a difference between the program recording date / time and the program playback date / time, and storing the preference information in the preference information storage means (Step 3).
[0014]
FIG. 2 is a principle configuration diagram of the present invention.
[0015]
The present invention (Claim 2) is a preference information extraction device for extracting preference information indicating the degree of viewer preference for a program,
Program information acquisition means 21 for acquiring program information relating to a program from a television viewing device or a recording / playback device and storing it in the database 23;
Viewing information acquisition means 22 for acquiring viewing information indicating the viewing state of the viewer and storing it in the database 23;
The preference information stored in the preference information storage unit 26 is acquired from the database 23 by obtaining the program recording date and time and the program playback date and time as the viewing information, generating the preference information based on the difference between the program recording date and the program playback date and time. Generating means 25.
[0018]
The present invention (Claim 3) is a preference information extraction program for extracting preference information indicating the degree of viewer preference for a program,
Computer
It is a preference information extraction program made to function as a preference information extraction device of Claim 2 .
[0021]
As described above, the present invention can extract the degree of viewer preference for broadcasting or recording.
[0022]
Also, preference information is generated based on whether the program is broadcast viewing, playback viewing, the difference between the program recording date and the program playback date, the viewing time length, the playback count, the fast-forward count, or a combination thereof. It becomes possible to do.
[0023]
In addition, preference information is generated for each program and each genre. Therefore, it is possible to grasp the degree of interest in the viewer's program that is played immediately after recording.
[0024]
In addition, it is possible to grasp the degree of interest of a viewer who watches a certain range to the end.
[0025]
In addition, it is possible to grasp the degree of high interest in a program that is viewed repeatedly by a viewer.
[0026]
In addition, it is possible to grasp the degree of interest in the program of the viewer who does not fast-forward.
[0027]
Further, even when one program covers a plurality of genres, it is possible to accurately grasp the degree of viewer preference for each genre.
[0028]
In addition, it is possible to update the preference information based on the elapsed time length that has not been viewed since viewing, and can accurately grasp the degree of preference of the viewer.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0030]
FIG. 3 shows a configuration of a preference information measuring system according to an embodiment of the present invention. Among these, the gist of the present invention is a preference information extraction device, and the preference information extraction device will be mainly described.
[0031]
The preference information measurement system shown in FIG. 3 transmits preference information extraction device 20 for extracting preference information on the viewer's program / recording on the viewer side, and a plurality of preference information extraction devices 20 via information communication network 2. The preference information totaling device 30 for totaling the preference information that has been recorded, the broadcast network 1, the television viewing device 11, and the recording / reproducing device 12 are included.
[0032]
The television viewing device 11 receives a program and an electronic program guide (hereinafter referred to as “program information”) from the broadcast network 1 and provides the program being broadcast to the viewer.
[0033]
The recording / playback apparatus 12 receives a program and program information from the broadcast network 1 and provides the recorded program to the viewer.
[0034]
In FIG. 3, the television viewing device 11 and the recording / playback device 12 are shown as different devices, but they may be integrated.
[0035]
The preference information extraction device 20 includes a program information acquisition unit 21 that acquires program information related to a program, a viewing information acquisition unit 22 that acquires viewing information indicating the viewing state of the viewer, a database 23 that records viewing information, and the like. A timing unit 24 that measures the date and time, a preference information generation unit 25 that generates preference information indicating the degree of preference of the viewer based on the viewing information, a preference information storage unit 26 that stores preference information, and a predetermined number A preference information update unit 27 that updates the preference information every time elapses, and a preference information transmission unit 28 that transmits the preference information to the predetermined preference information aggregation device 30.
[0036]
The database 23 records the program information acquired from the TV viewing device 11 and the recording / playback device 12 by the program information acquisition unit 21. The database 23 records the viewing information acquired from the television viewing device 11 and the recording / playback device 12 by the viewing information acquisition unit 22. Here, the viewing information is, for example, information indicating whether viewing by recording or playback or viewing during broadcasting, information indicating whether the viewer has watched the program to the end, whether there was fast-forward or rewind during viewing, and When fast-forwarding or rewinding occurs, it is information indicating the location and information indicating the viewing status of other viewers. The viewing state of the viewer is recorded in the database 23 in association with the date / time information. For example, date / time information such as recording date / time, reproduction date / time, and last viewing date / time is also recorded.
[0037]
The preference information generation unit 25 generates preference information based on the program information and viewing information stored in the database 23 and stores the preference information in the preference information storage unit 26. Specifically, preference information is generated based on the difference between the program recording date and time and the program playback date and time. In addition, preference information is generated based on whether viewing during broadcasting or viewing by reproduction. In addition, preference information is generated based on the viewing time and the number of reproductions. In addition, a numerical value indicating the viewer's preference is generated for each viewing program. Moreover, the numerical value which shows a viewer's preference for every genre is produced | generated. When one program is composed of a plurality of corners and covers a plurality of genres, the preference value is calculated separately for each genre.
[0038]
The preference information update unit 27 updates the preference information stored in the preference information storage unit 26 based on the elapsed time length that has passed since viewing.
[0039]
In such a preference information measurement system, each of the plurality of preference information extraction devices 20 installed on the viewer side acquires program information about the program, acquires viewing information indicating the viewing state of the viewer, and views Preference information indicating the degree of preference of the viewer for the program is generated based on the information, the preference information is transmitted to the preference information totaling device 30, and the preference information totaling device 30 totals the preference information of a plurality of viewers. It has become. The viewer preference information tabulated in this way is presented to an advertiser or the like via the information communication network 2, for example.
[0040]
Next, operation | movement of said preference information extraction apparatus 20 is demonstrated.
[0041]
FIG. 4 is a flowchart of preference information generation processing for program viewing according to an embodiment of the present invention.
[0042]
In the following, an example is shown in which a viewing program preference value α and a viewing genre preference value β are calculated as viewer preference information for a specific program.
[0043]
The initial values of the preference numerical values α and β are set to default (= 0) (step 200). First, the viewing information acquisition unit 22 acquires the viewing information acquired in advance from the television viewing information 11 and the recording / playback apparatus 12 and stored in the database 23 by the preference information generation unit 25 reading (step 201).
[0044]
Next, the program information acquisition unit 21 acquires the program information previously acquired from the TV viewing device 11 and the recording / playback device 12 and recorded in the database 23 by the preference information generation unit 25 reading it (step 202).
[0045]
Next, an initial value of Δα, which is an increase in the viewing program preference value α, is set (step 203). For example, Δα is set to “1”.
[0046]
Next, information indicating whether the viewing is performed by the television viewing device 11 or the recording / playback device 12 is extracted from the viewing information, and it is determined whether the viewing is during broadcasting or viewing by recording / playback (step 204).
[0047]
In the case of viewing by recording / playback, the recording date / time of the program is extracted from the viewing information (step 205), and the playback date / time of the program is extracted from the viewing information (step 206). The increment Δα of the viewing program preference value α is adjusted based on the difference (step 207). Here, Δα is increased as the difference between the recording date / time and the reproduction date / time is smaller. For example, if the difference is within 10 days, Δα is multiplied by 1.2, if the difference is in the range from 10th to 20th, Δα is multiplied by 1.1, and if the difference is 21 days or more, Δα As it is.
[0048]
In the case of viewing by recording / playback, information indicating the number of times the program is played is extracted from the viewing information, and it is determined whether or not it is the first viewing (step 208). If it is determined that the viewing is the first viewing, a predetermined coefficient is multiplied so as to increase the increment Δα of the viewing program preference value α (step 209). For example, Δα is multiplied by 1.2.
[0049]
Next, information indicating the program time length is extracted from the program information, and information indicating the viewing time length is extracted from the viewing information to determine whether the viewer has watched the program to the end (step 210). If it is determined that the viewer has watched the program to the end, a predetermined coefficient for increasing the increment Δα of the viewing program preference value α is multiplied (step 211). For example, Δα is multiplied by 1.2.
[0050]
When a program viewed on the television viewing device 11 during broadcasting is simultaneously recorded and reproduced by the recording device 12, the increment Δα of the viewing program preference value α is further increased. For example, at a place where Δα is multiplied by 1.2, it is changed to 1.4 times instead of 1.2 times.
[0051]
Next, the increment Δα is added to the viewing program preference value α (step 212). Further, the increment Δα of the viewing program preference value α is substituted for the increase Δβ of the viewing genre preference value β corresponding to the genre of the program (step 213).
[0052]
Next, based on the program information and viewing information, it is determined whether or not there is a portion that has been repeatedly reproduced in the genre in the program (step 214). In addition, the reproduction of a part not corresponding to the genre in the program is excluded. If there is a part that is repeatedly reproduced in the genre in the program, the number of repetitions multiplied by a predetermined coefficient value is added to the increment Δβ of the viewing genre preference β (step 215). For example, a value obtained by multiplying the number of repetitions by 0.1 is added to Δβ. When one program covers multiple genres, for example, it is a news program and consists of multiple corners such as general news reports, sports, and weather forecasts. It is better to calculate the preference value separately.
[0053]
Next, in the case of viewing by recording / playback, it is determined whether or not there is a portion that is extracted from the viewing information indicating the number of fast-forwards and skipped during playback of the program (step 216). Note that skipping of parts not corresponding to the genre in the program is excluded. If there is a skipped portion, the increment Δβ of the viewing genre preference numerical value β is subtracted (step 217). When one program covers a plurality of genres, it is preferable to determine a skip location for each genre and calculate a preference value for each genre.
[0054]
Next, the increment Δβ is added to the viewing genre preference numerical value β (step 218).
[0055]
Such preference information generation processing is performed at predetermined time intervals, for example, every day, and the generated preference information is transmitted to the preference information aggregation device 30 via the information communication network 2. When it is detected that the viewer has finished watching the program, the preference information generation process may be executed.
[0056]
Next, the update process of preference information based on the elapsed time since viewing the program will be described.
[0057]
FIG. 5 is a flowchart of the preference information update process according to the embodiment of the present invention.
[0058]
In the following, an example is shown in which a viewing program preference value α and a viewing genre preference value β are calculated as viewer preference information for a specific program.
[0059]
First, the preference information generating unit 25 reads the time measured by the time measuring unit 24, thereby acquiring the current date and time (step 301).
[0060]
Next, information indicating the last viewing date is extracted from the viewing information acquired in advance from the TV viewing device 11 and the recording / playback device 12 by the viewing information acquisition unit 21 and recorded in the database 23 (step 302).
[0061]
Next, the viewing program preference value α and the viewing genre preference value β are updated based on the date and time difference between the viewing program preference number α and the viewing genre preference value β (step 303). In this example, the preference values α and β are subtracted using an exponential function so that the preference value decreases with the elapsed time from the last viewing date and time.
[0062]
Such update processing of preference information is performed every predetermined time, for example, every day, and the updated preference information is transmitted to the preference information totaling apparatus 30 via the information communication network 2.
[0063]
As described above, the preference information extraction apparatus 20 according to the present embodiment includes the program information acquisition unit 21 that acquires program information related to a program, the viewing information acquisition unit 22 that acquires viewing information indicating the viewing state of the viewer, and the like. The preference information generating unit 25 that generates the preference information indicating the degree of preference of the viewer for the program based on the viewing information, the preference information storage unit 26 that stores the preference information, and the preference information is transmitted to a predetermined destination. The preference information transmitting unit 28 can accurately extract the degree of viewer preference for broadcasting even when there are many viewers viewing the program by recording and reproduction.
[0064]
In addition, the preference information extraction apparatus 20 according to the present embodiment is configured so that the preference information generation unit 25 is viewing while broadcasting or viewing by playback, the difference between the program recording date and the program playback date, viewing time length, playback count, and fast-forwarding. Preference information is generated based on either the number of times or a combination thereof.
[0065]
Moreover, the preference information extraction apparatus 20 in this Embodiment WHEREIN: The preference information generation part 25 produces | generates preference information according to a program and a genre. Therefore, it is possible to grasp the high degree of interest in the viewer's program that is played immediately after recording. In addition, it is possible to grasp the degree of interest of a viewer who watches a certain range to the end. In addition, it is possible to grasp the degree of high interest in a program that is viewed repeatedly by a viewer.
[0066]
In addition, it is possible to grasp the high degree of interest in the program of the viewer who does not fast-forward. Further, even when one program covers a plurality of genres, it is possible to accurately grasp the degree of viewer's preference for each genre. For example, when the home run scene of the sports corner is viewed many times, such a high degree of interest of the viewer can be reflected.
[0067]
Moreover, since the preference information extraction apparatus 20 in the present embodiment can update the preference information based on the elapsed time length that has passed since viewing, the viewer's preference level can be accurately determined. I can grasp it.
[0068]
Thus, in the preference information measurement system, the preference information transmitted from the plurality of preference information extraction devices 20 is aggregated, whereby the degree of viewer preference for broadcasting can be accurately transmitted to the advertiser or the like.
[0069]
In the above description, the example in which the network in which the program and the program information are transmitted is configured as a different network from the network in which the preference information is transmitted has been described. However, the network may be configured in the same network.
[0070]
Further, in the above description, an example has been described in which a decrease in the preference value over time after viewing is derived by an exponential function and importance is placed immediately after viewing. However, the preference information storage device is not limited to this. The calculation may be performed using other functions.
[0071]
In the above description, the example in which the preference information is classified by program and by genre has been described. However, the preference information is aggregated separately for each viewing state of the viewer, and a report to the advertiser or the like is created. Also good. For example, the preference value for viewing during broadcasting and the preference value for recording / playback may be separately extracted and aggregated, or extracted separately from the preference value for repeated playback and the preference value for non-repeated playback And may be aggregated.
[0072]
Further, the present invention can be widely implemented not only for PVR but also for media packages such as DVD and video tape related equipment.
[0073]
In addition, the constituent elements of the preference information extraction device of the present invention may be constructed as a program and installed in a computer used as the preference information extraction device, or distributed via a network.
[0074]
Further, the constructed program is stored in a hard disk device connected to a computer used as a preference information extraction device, a portable storage medium such as a flexible disk, a CD-ROM, etc., and installed when the present invention is carried out. It is also possible to do.
[0075]
The present invention is not limited to the above-described embodiment, and various modifications and applications can be made within the scope of the claims.
[0076]
【The invention's effect】
As described above, according to the present invention, the degree of viewer preference for broadcasting can be accurately extracted.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining the principle of the present invention.
FIG. 2 is a principle configuration diagram of the present invention.
FIG. 3 is a configuration diagram of a preference information measurement system according to an embodiment of the present invention.
FIG. 4 is a flowchart of preference information generation processing in program viewing according to an embodiment of the present invention.
FIG. 5 is a flowchart of information update processing according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Broadcast network 2 Information communication network 11 Television viewing apparatus 12 Recording / reproducing apparatus 20 Preference information extraction apparatus 21 Program information acquisition means, program information acquisition part 22 Viewing information acquisition means, viewing information acquisition part 23 Database 24 Timing part 25 Preference information generation means , Preference information generation unit 26 preference information storage means, preference information storage unit 27 preference information update unit 28 preference information transmission unit 30 preference information aggregation device

Claims (3)

In a preference information extraction method for extracting preference information indicating the degree of preference of viewers for a program,
A program information acquisition process for acquiring program information about a program from a TV viewing device or a recording / playback device and storing it in a database;
Viewing information acquisition process for acquiring viewing information indicating a viewer's viewing state and storing it in a database;
Preference information that acquires the program recording date and time and program playback date and time as the viewing information from the database, generates preference information based on the difference between the program recording date and time and the program playback date and time, and stores the preference information in the preference information storage means Generation process,
The preference information extraction method characterized by performing. A preference information extracting device for extracting preference information indicating a degree of preference of a viewer for a program,
Program information acquisition means for acquiring program information relating to a program from a television viewing device or a recording / playback device and storing it in a database;
Viewing information acquisition means for acquiring viewing information indicating the viewing state of the viewer and storing it in a database;
Preference information that acquires the program recording date and time and program playback date and time as the viewing information from the database, generates preference information based on the difference between the program recording date and time and the program playback date and time, and stores the preference information in the preference information storage means Generating means;
A preference information extracting apparatus characterized by comprising: A preference information extraction program for extracting preference information indicating the degree of viewer preference for a program,
Computer
A preference information extraction program that functions as the preference information extraction device according to claim 2 .

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