JP2019148878A - Information processing device, information processing method, and program - Google Patents

Abstract

To further easily evaluate validity of information provided by a user.SOLUTION: An information processing device refers to purchase history information in which information on products or services (hereafter products etc.) ordered by a user at a shopping site and time point information indicating time points when the products etc. are ordered at the shopping site are represented in one record, and selection history information in which information on products etc. selected by the user at the shopping site and the time point information of time points of the selection are represented in one record, and associates the record of the purchase history information containing the same products etc. ordered and selected by the same user and in which the time points satisfy a preset condition and the record of the selection history information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information processing apparatus, an information processing method, and a program.

  In a web page accessed by a user, recommendation information assumed to be of interest to the user is displayed. Also, an advertisement display device is disclosed that identifies an attribute of a user who has a track record such as a click for each advertisement and uses it for advertisement distribution conditions (see, for example, Patent Document 1).

JP 2011-238020 A

  However, in the above-described conventional technology, there has been no comparison between the result of clicking the recommendation information and the action of the user after the click. For this reason, it may not be possible to evaluate whether the recommendation information actually triggers the action after the user clicks.

  The present invention has been made in view of such circumstances, and an information processing apparatus, an information processing method, and a program that can assist in more easily evaluating the effectiveness of information provided to a user. One of the purposes is to provide.

  One aspect of the present invention is the purchase history information in which the information of the product or service ordered by the user on the shopping site (hereinafter referred to as the product) and the time information indicating the time when the product is ordered are expressed in one record; The same information that is ordered and selected by the same user with reference to information such as the product selected by the user on the shopping site and the selection history information in which the time information indicating the selected time is expressed in one record It is an information processing apparatus that associates a record of the purchase history information with a record of the selection history information that includes information such as a product and satisfies the condition in which the time is preset in a relative relationship.

  According to one embodiment of the present invention, it is possible to assist in more easily evaluating the effectiveness of information provided to a user.

It is a figure which shows an example of the use environment of information processing apparatus. It is a figure which shows an example of a function structure of the information processing apparatus 1, the information user terminal 60, and the recommended product determination apparatus 80. FIG. It is a figure which shows an example of screen IM of the shopping site provided by the shopping server. 7 is a diagram illustrating an example of the content of fourth access information 38. FIG. It is a figure which shows another example of screen IM2 of the shopping site provided by the shopping server. It is a figure which shows an example of the content of the shopping order information. It is a figure which shows an example of the content of the order item information. It is a figure for demonstrating the production | generation process of the extraction information 52. FIG. It is a figure for demonstrating the production | generation process of the integrated information. It is a figure which shows an example of the integrated information. It is a figure which shows the integrated information 54 # which is another example of the integrated information 54. FIG. 4 is a flowchart illustrating an example of a flow of processing executed by the information processing apparatus 1. 5 is a flowchart illustrating an example of a flow of processing executed by an evaluation unit 62 of the information user terminal 60. 5 is a flowchart illustrating an example of a flow of processing executed by a recommended product determination device 80. It is a figure which shows an example of the use environment of the information processing apparatus of 2nd Embodiment. This is a screen IM3 provided to the shopping server 90 and displayed on the terminal device of the user. 4 is a flowchart illustrating an example of a flow of processing executed by a search device 110.

  Hereinafter, an information processing apparatus, an information processing method, and a program according to embodiments of the present invention will be described with reference to the drawings. The information processing apparatus is realized by one or more processors. The information processing apparatus includes information on the product or service ordered by the user on the shopping site (hereinafter referred to as a product) and purchase history information in which time information indicating the time when the product is ordered is expressed in one record, The information of the product selected by the user and the time information indicating the selected time with reference to the selection history information represented by one record, including information on the same product ordered and selected by the same user, In addition, a record of purchase history information and a record of selection history information are associated with each other in a relative relationship that satisfies a preset time.

  “The condition that the time is set in advance in the relative relationship” means, for example, that the time information indicating the time selected by the selection history information is earlier than the time information indicating the time when the product is ordered, and (Or) The time information indicating the time when the product is ordered is within a predetermined time (24, 48 hours, etc.) from the time information indicating the selected time.

  “Associating the record of purchase history information with the record of selection history information” is to combine the record of purchase history information and the record of selection history information. The “product selected by the user” is a recommended product or the like or a product included in the search result searched by the user. The recommended product etc. is the product etc. extracted by the recommended product determination device and selected by the user, and the product etc. included in the search result is the product etc. searched by the search device to the user. The selected product.

  The information processing apparatus generates information indicating that the user clicked a recommended product or the like on a shopping site, for example, and ordered the recommended product within a predetermined time by executing the processing as described above. Can do. This generated information is used to evaluate the effectiveness of the recommended product. As a result, it is possible to assist the evaluation of the effectiveness of the information provided to the user more easily.

<First Embodiment>
[Constitution]
FIG. 1 is a diagram illustrating an example of an environment in which an information processing apparatus is used. The usage environment of the information processing apparatus 1 includes, for example, the information processing apparatus 1, the information user terminal 60, the recommended product determination device 80, the shopping server 90, and the terminal device 100. Note that the information processing apparatus 1 may include a recommended product determination device 80. The shopping server 90 may include a recommended product determination device 80.

  These devices and the like communicate with each other via the network NW. The network NW includes, for example, a WAN (Wide Area Network), a LAN (Local Area Network), the Internet, a dedicated line, a wireless base station, a provider, and the like. Also, some or all of these devices may be configured as one device.

  The shopping server 90 provides information such as a product to the terminal device 100 in response to a request of the terminal device 100 held by the user, and accepts an order of the product in response to a user operation. Further, the shopping server 90 displays the recommended product on a predetermined page or region based on the information provided by the recommended product determination device 80. Thereby, in the shopping site provided by the shopping server 90, the recommended product is included in a predetermined area of the image displayed on the display unit of the user terminal device 100.

[Information processing device]
FIG. 2 is a diagram illustrating an example of functional configurations of the information processing apparatus 1, the information user terminal 60, and the recommended product determination apparatus 80. The information processing apparatus 1 includes, for example, a first processing unit 10, a second processing unit 20, a first storage unit 30, a second storage unit 40, and a third storage unit 50.

  The first processing unit 10 and the second processing unit 20 are realized by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program stored in a storage device. In addition, these functional units may be realized by hardware such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), GPU (Graphics Processing Unit), It may be realized by cooperation of software and hardware. The above program may be stored in advance in a storage device, or stored in a removable storage medium such as a DVD or CD-ROM, and the storage medium is attached to the drive device of the information processing apparatus 1. May be installed in the storage device.

  The first storage unit 30, the second storage unit 40, and the third storage unit 50 are, for example, a ROM (Read Only Memory), a flash memory, an SD card, a RAM (Random Access Memory), a HDD (Hard Disc Drive), and a register. Etc. Further, part or all of the first storage unit 30, the second storage unit 40, or the third storage unit 50 may be a NAS, an external storage server, or the like. In addition, some or all of the first storage unit 30, the second storage unit 40, and the third storage unit 50 may be integrated.

The first storage unit 30 stores, for example, log information indicating the usage status of the user's shopping site. In the first storage unit 30, for example, first access information 32, second access information 34, third access information 36, and fourth access information 38 are stored.
The 1st access information 32, the 2nd access information 34, and the 3rd access information 36 are the use situations by a personal computer, a smart phone, and a tablet terminal, respectively. The fourth access information 38 is extracted from the first access information 32, the second access information 34, and the third access information 36, so that the usage status by the same user or the same terminal device is extracted, so that the usage status can be easily used. It is the summarized information.

  Hereinafter, the fourth access information 38 will be described. FIG. 3 is a diagram illustrating an example of a shopping site screen IM provided by the shopping server 90. The screen IM includes, for example, products A to C and recommended products that are the result of the user selecting a category such as a product on a shopping site or searching for a category or title (product name or service name) as a query. D to F etc. are displayed. The recommended product is a product that is recommended to a user who has purchased the products A to C, for example. In the screen IM, for example, when the user performs an operation (such as a click or tap operation) for selecting a predetermined product or the like, the usage status thereof is stored as fourth access information (log information). On the screen IM, for example, when the user performs an operation (such as click or tap operation) to select a predetermined product, the link destination page associated with the area in which the product is displayed is displayed. The screen changes (see FIG. 5).

  FIG. 4 is a diagram illustrating an example of the content of the fourth access information 38. The fourth access information 38 includes a plurality of records indicating the usage status of the user in the shopping server 90. One record is included in the identification information (user information) of the user, the access date and time when the screen of the shopping server 90 is accessed, the type of the accessed page (for example, a top page, a page showing product details), and the accessed page. Information on the link destination to be accessed, information on the position selected on the page accessed by the user (click position and link destination corresponding to the click position), selected date and time (click date and time), and the like.

  The link destination information includes identification information of each area in the accessed page, identification information of a product or the like (displayed) included in each area, link destination information associated with each area, and the like. Each area is an area in which information on a product or the like (or a recommended product or the like) associated with link destination information is displayed. The information processing apparatus 1 can recognize a link destination or the like such as a screen accessed by the user or a product selected on the accessed screen based on the above-described record.

  The first processing unit 10 extracts a record related to the recommended product or the like in the fourth access information 38. The record related to the recommended product or the like is, for example, a record indicating that the user has selected the recommended product or the like on the screen IM, or a record indicating an operation when the recommended product or the like is displayed on the screen IM. Moreover, the 1st process part 10 performs the filtering process which deletes unnecessary information in the extracted record. Unnecessary information is, for example, information not related to an operation on a recommended product. For example, the information is not related to an operation on a recommended product, such as information indicating that the top page of the shopping server 90 has been accessed.

  In the second storage unit 40, for example, shopping order information 42 and order item information 44 are stored. FIG. 5 is a diagram showing another example of a shopping site screen IM2 provided by the shopping server 90. As shown in FIG. The screen IM2 includes, for example, an order button for ordering a product selected by the user on the shopping site and a detailed description of the product. When the user operates the order button, the order of the selected product or the like is confirmed, the contents of the operation are stored as log information, and shopping order information 42 and order item information 44 are generated.

  FIG. 6 is a diagram illustrating an example of the contents of the shopping order information 42. In the shopping order information 42, one order ID is given to one record. One record includes one order ID, user information, a store ID that provides the ordered product, a product ID of one or more ordered products, and the date and time when the order is confirmed.

  FIG. 7 is a diagram illustrating an example of the contents of the order item information 44. In the order item information 44, one product ID is given to one record. One record includes an order ID, a store ID, one product ID, and the date and time when the order is confirmed.

  The second processing unit 20 extracts common information from information included in the shopping order information 42 and the order item information 44, and generates extracted information 52 based on the extracted information. FIG. 8 is a diagram for explaining the generation process of the extraction information 52. The extracted information 52 is information indicating the date and time when one product (product ID) was ordered by a specific user. The second processing unit 20 extracts a record including a common order ID and product ID included in the shopping order information 42 and the order item information 44, and generates extracted information 52.

  Further, the second processing unit 20 generates integrated information 54 that integrates the extracted information 52 and the information filtered by the first processing unit 10. FIG. 9 is a diagram for explaining the generation process of the integrated information 54. The second processing unit 20 refers to a record having common user information included in the extracted information 52 and the filtered information D, and generates integrated information 54. In the example shown in the drawing, the user who has purchased the product “P001” as shown in the extracted information 52 shows the area “in which the information of the product“ P001 ”is displayed as shown in the link destination information of the filtered information D” “001” is clicked.

  The second processing unit 20 refers to the extracted information 52 and the information D, extracts information indicating that the same user has browsed the information such as the product, and ordered the product viewed after browsing, and the integrated information 54 is generated. The integrated information 54 is information that is estimated to be purchased after the user browses the recommended product and the like after browsing. Hereinafter, in the illustrated example, information extracted from the extracted information 52 is referred to as “click information 54A”, and the filtered information is referred to as “order information 54B”. The click information 54A is an example of “selection history information”, and the order information 54B is an example of “order history information”.

  The conditions for the click information 54A and the order information 54B to be integrated information 54 are, for example, (1) the click date and time of the click information and the order date and time of the order information 54B are within a set time (for example, 24 hours or 48 hours). (2) The order is placed after the click is made (that is, the click date is earlier than the order date).

  FIG. 10 is a diagram illustrating an example of the integrated information 54. The integrated information 54 is information in which the click information 54A and the order information 54B are associated with each other. For example, the second processing unit 20 refers to the extracted information 52 and the filtered information D, and extracts information that satisfies the above conditions (1) and (2). Then, the second processing unit 20 generates integrated information 54 by associating information (including product ID and user information) such as the date and time when the order operation was performed with information such as the date and time when the click operation was performed. To do.

  FIG. 11 is a diagram illustrating integrated information 54 #, which is another example of the integrated information 54. As illustrated in FIG. Click information 54A and order information 54B are associated with each other. For example, when there are a plurality of order information 54B, the click information 54A may correspond to the plurality of order information 54B. For example, after viewing the details of a recommended product, etc., order the product, etc., and through other operations without browsing the details of the recommended product etc. (for example, an operation to select a displayed category is performed) ), When the same product or the like is ordered, a plurality of order information 54B exists as described above. In this case, the second processing unit 20 executes a process of associating the click information 54A with one order information 54B among the plurality of order information 54B (duplication exclusion process). For example, in the duplication exclusion process, the order information 54B having the order date and time close to the click date and time of the click information 54A is associated with the click information 54A, and the other order information 54B is excluded from the association target. Note that the above-described deduplication processing may be executed by the information user terminal 60 (the evaluation unit 62) instead of the second processing unit 20.

  Each record of the integrated information 54 (54 #) includes, in addition to the above information, information included in the page type information, the fourth access information 38, or the information stored in the second storage unit 40. Also good.

[Information user terminal]
Returning to the description of FIG. The information user terminal 60 includes, for example, an evaluation unit 62 and a storage unit 70. The evaluation unit 62 refers to the integrated information 54 and generates evaluation information 72. Specifically, the evaluation unit 62 refers to the integrated information 54, derives an index indicating the effectiveness of the recommended product, etc., and generates evaluation information 72 based on the derived index. The above indicator is KPI (Key Performance Indicator) or the like. The KPI is, for example, CVR (Conversion Rate) indicating the ratio of the number of times the product is purchased out of the number of clicks on the recommended product displayed on the display unit, or the number of clicks (clicks) on the number of times the recommended product is displayed. CTR (Click Through Rate) indicating the ratio of (number).

[Recommended Product Determination Device]
The recommended product determination device 80 includes, for example, a providing unit 82 and product etc. information 84. The providing unit 82 extracts the product or service (hereinafter referred to as product) included in the product etc. information 84, which is a recommended product, etc., and provides the extracted product etc. information to the shopping server 90. To do. The product etc. information is information including identification information of the product etc., title of the product etc. (product name or service name), detailed explanation of the product, product image, and the like. The providing unit 82 extracts recommended products, for example, according to a model specified in advance. The pre-defined model is a model that preferentially extracts a specific product, a model that preferentially extracts a product with a high CVR in the shopping server 90, a product that has a high CTR, etc. This is the model to be extracted. Further, the providing unit 82 determines a page and a position where information such as a product is displayed on the shopping server 90, and provides the shopping server 90 with information indicating the determined content.

[Flowchart (Part 1)]
FIG. 12 is a flowchart illustrating an example of the flow of processing executed by the information processing apparatus 1. First, the 1st process part 10 performs the filtering process which extracts the record relevant to recommendation goods etc. in the 4th access information 38, and deletes unnecessary information in the extracted record (S10). Next, the second processing unit 20 extracts common information from information included in the shopping order information 42 and the order item information 44, and generates extracted information 52 based on the extracted information (S12). Next, the second processing unit 20 generates integrated information 54 that integrates the extracted information 52 and the information filtered by the first processing unit 10 (S14). Thereby, the process of this flowchart is complete | finished.

  Through the above-described processing, after selecting a recommended product or the like, it is possible to generate information that can be estimated to indicate that the recommended product or the like has been purchased.

[Flowchart (Part 2)]
FIG. 13 is a flowchart illustrating an example of a flow of processing executed by the evaluation unit 62 of the information user terminal 60. In this process, the deduplication process is executed by the evaluation unit 62.

  First, the evaluation unit 62 acquires the integrated information 54 and extracts an evaluation target record from the acquired integrated information 54 (S20). The evaluation target record is a record including a predetermined user, a predetermined product, a predetermined period, and the like. Next, the evaluation unit 62 performs deduplication processing (S22). Next, the evaluation unit 62 derives a KPI using the information on which the deduplication process has been performed (S24). Thereby, the process of this flowchart is complete | finished.

  The KPI can be accurately derived by using information that can be estimated to indicate that the recommended product has been purchased after the recommended product has been selected by the above-described processing.

[Flowchart (Part 3)]
FIG. 14 is a flowchart illustrating an example of the flow of processing executed by the recommended product determination device 80. First, the providing unit 82 acquires the KPI derived by the process of the flowchart of FIG. 13 (S30). Next, the providing unit 82 determines whether or not the acquired KPI is equal to or less than a reference value (S32). If the KPI is not less than or equal to the reference value, the process of this flowchart ends.

  If the KPI is less than or equal to the reference value, the providing unit 82 modifies the model for extracting recommended products and the like (S34). Modifying the model means modifying the model so that recommended products and the like are extracted so that the KPI increases. Next, the providing unit 82 provides the recommended product extracted with the corrected model to the shopping server 90 (S36). Thereby, the process of this flowchart is complete | finished.

  Through the processing described above, recommended products and the like that are likely to be purchased by the user and highly likely to be of interest are extracted, and the extracted recommended products and the like can be provided to the shopping server 90.

  According to the first embodiment described above, the information processing apparatus 1 includes information on the same product or the like ordered and selected by the same user, and click information that satisfies a condition in which the time is set in advance in a relative relationship By associating 54A with the order information 54B, it is possible to generate information that can be estimated to indicate that the recommended product has been purchased after selecting the recommended product. As a result, it is possible to provide information that can assist in more easily evaluating the effectiveness of the information provided to the user.

Second Embodiment
Hereinafter, a second embodiment will be described. The usage environment of the information processing apparatus according to the second embodiment differs from the usage environment of the information processing apparatus according to the first embodiment in that the search device 110 is provided. Hereinafter, differences from the first embodiment will be described.

  FIG. 15 is a diagram illustrating an example of a use environment of the information processing apparatus according to the second embodiment. In the use environment of the second embodiment, the search device 110 is included in addition to the configuration of the first embodiment. In the second embodiment, the recommended product determination device 80 may be omitted. Further, the information processing apparatus 1 may include the search device 110. The shopping server 90 may include the search device 110.

  When a query is input by the user, the search device 110 extracts product information related to the input query using a search model that extracts the product related to the query from the product information, and the extracted product And the like are provided to the shopping server 90. Then, the shopping server 90 provides the user with the product information provided by the search device 110.

  FIG. 16 is a screen IM3 provided to the shopping server 90 and displayed on the user terminal device. As shown in the figure, the screen IM3 includes information such as products searched by the search device 110 (products A to C, etc.). In the screen IM3, for example, when the user performs an operation of selecting a predetermined product or the like, the usage status is stored as the fourth access information.

  In addition, the search device 110 corrects the search model based on the evaluation information 72. “Modifying the model” means correcting the model so as to extract a product or the like included in the search result so that an index such as KPI increases.

  FIG. 17 is a flowchart illustrating an example of the flow of processing executed by the search device 110. First, the search device 110 acquires the KPI derived by the evaluation unit 62 of the information user terminal 60 (S40). Next, the search device 110 determines whether or not the acquired KPI is equal to or less than a reference value (S42). If the KPI is not less than or equal to the reference value, the process of this flowchart ends.

  If the KPI is equal to or less than the reference value, the search device 110 corrects the search model (S44). Next, the search device 110 provides the shopping server 90 with products and the like searched with the corrected search model (S46). Thereby, the process of this flowchart is complete | finished.

  By the above-described processing, products and the like that are likely to be purchased by the user and highly likely to be included can be included in the search results, and the search results can be provided to the shopping server 90.

  According to the second embodiment described above, the information processing apparatus 1 includes information on the same product or the like ordered and selected by the same user, and click information that satisfies a condition in which the time is set in advance in a relative relationship By associating 54A and order information 54B, it is possible to generate information that can be estimated to indicate that a product or the like included in the search result has been purchased after selecting the product or the like included in the search result. As a result, it is possible to provide information that can assist in more easily evaluating the effectiveness of the information provided to the user.

  The information processing apparatus 1 according to the embodiment described above is a purchase in which time information indicating information on a product or service ordered by a user on a shopping site (hereinafter referred to as a product) and time information indicating the time when the product is ordered is represented by one record. Refer to history information (for example, order information 54B) and selection history information (for example, click information 54A) in which information on the product selected by the user on the shopping site and time information indicating the selected time are expressed in one record. In addition, by associating a record of purchase history information with a record of purchase history information that includes information on the same product or the like ordered and selected by the same user, and that satisfies a time set in advance in a relative relationship, It is possible to support the evaluation of the effectiveness of the information provided to the user more easily.

  As mentioned above, although the form for implementing this invention was demonstrated using embodiment, this invention is not limited to such embodiment at all, In the range which does not deviate from the summary of this invention, various deformation | transformation and substitution Can be added.

DESCRIPTION OF SYMBOLS 1 ... Information processing apparatus, 10 ... 1st process part, 20 ... 2nd process part, 30 ... 1st memory | storage part, 38 ... 4th access information, 40 ... 2nd memory | storage part, 42 ... Shopping order information, 44 ... Order Item information 50... Third storage section 52. Extraction information 54. Integrated information 54 A Click information 54 B Order information 60 Information user terminal 62 Evaluation section 70 Storage section 72 Evaluation Information, 80 ... Recommended product determining device, 82 ... Providing section, 84 ... Product etc. information, 90 ... Shopping server, 100 ... Terminal device, 110 ... Search device

Claims (11)

Purchase history information in which information of a product or service ordered by a user on a shopping site (hereinafter referred to as a product) and time information indicating the time when the product is ordered are expressed in one record;
With reference to information such as the product selected by the user on the shopping site and the selection history information in which the time information indicating the selected time is expressed in one record,
Including the information of the same product ordered and selected by the same user, and associating the record of the purchase history information with the record of the selection history information satisfying a condition in which the time is preset in a relative relationship;
Information processing device. Associating the purchase history information record with the selection history information record is to combine the purchase history information record and the selection history information record.
The information processing apparatus according to claim 1. The product selected by the user is a recommended product or the like or a product included in a search result searched by the user.
The information processing apparatus according to claim 1 or 2. The condition in which the time is set in advance in the relative relationship is that the time information indicating the selected time is earlier than the time information indicating the time when the product is ordered.
The information processing apparatus according to any one of claims 1 to 3. The condition in which the time is set in advance in the relative relationship is that time information indicating the time when the product is ordered is within a predetermined time from the time information indicating the selected time.
The information processing apparatus according to claim 4. The user refers to information in which a position selectable by the user on the shopping site and information such as a product associated with the selectable position are associated with each other, and based on the position selected by the user, the user Identify information about the selected product, etc.
The information processing apparatus according to any one of claims 1 to 5. When a plurality of purchase history information records satisfy a condition associated with the selection history information record, time information included in the purchase history information record is included in the purchase history information among the plurality of purchase history information. Corresponding early purchase history information to the selection history information,
The information processing apparatus according to any one of claims 1 to 6. Based on the processing result of the information processing apparatus, an index indicating the degree of a product or the like that is estimated to be ordered when the user orders the product or the like included in the recommended product or the search result searched by the user is derived. Further comprising an evaluation unit,
The information processing apparatus according to claim 3. An evaluation unit that evaluates a processing result of a recommended product determination device that extracts the recommended product or a processing result of a search device that searches for information such as a product based on the processing result of the information processing device;
The information processing apparatus according to claim 3. Computer
Purchase history information in which information of a product or service ordered by a user on a shopping site (hereinafter referred to as a product) and time information indicating the time when the product is ordered are expressed in one record;
With reference to information such as the product selected by the user on the shopping site and the selection history information in which the time information indicating the selected time is expressed in one record,
Including the information of the same product ordered and selected by the same user, and associating the record of the purchase history information with the record of the selection history information satisfying a condition in which the time is preset in a relative relationship;
Information processing method. On the computer,
Purchase history information in which information of a product or service ordered by a user on a shopping site (hereinafter referred to as a product) and time information indicating the time when the product is ordered are expressed in one record;
Information such as a product selected by the user on the shopping site and selection history information in which the time information indicating the selected time is expressed in one record;
Including the information of the same product ordered and selected by the same user, and associating the record of the purchase history information with the record of the selection history information satisfying a condition in which the time is preset in a relative relationship;
program.

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