JP2007128133A - Method, server and program for providing information related to commodity sales through communication network - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further actively provide information related to commodity sales matched to a user prior to browsing of pages of individual commodities. <P>SOLUTION: The server 10 accepts input of user ID data from a terminal 20a, 20b, accepts selection of a commodity by a user concerned, and stores commodity ID data showing the accepted commodity in association with the user ID data concerned as a user-based commodity selection table. The server 10 further computes a commodity selection similarity between users based on the user-based commodity selection table, and stores it as a commodity selection similarity table. The server 10 further transmits, based on the commodity selection similarity table, the user-based commodity selection table of a user having a commodity selection similarity with the user concerned of a predetermined value or more to the user concerned. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method, a server, and a program for providing information related to product sales via a communication network. In particular, the present invention relates to a method, a server, and a program for providing information related to product sales based on product selection similarity via a communication network.

  Conventionally, various techniques have been proposed as a method for providing information related to product sales to a terminal connected via a communication network such as a mobile phone or a PC.

  For example, in Patent Document 1, when a customer views a page of an individual product, information related to an order previously made by the customer is displayed. This eliminates the need to contact customer service to know if the ordered item has been shipped.

Or in another Example, the information of the related goods which the other customer who ordered the said goods ordered more actively is displayed, and the purchase of a related goods is also performed.
JP-T-2004-535015

  However, all such information provisions can be displayed only after the user accesses the site and further performs a selective browsing operation on a page of an individual product. Therefore, the related product information is not displayed before the customer browses such a page.

  As a result, many input operations such as those described above are carried out especially on mobile phone product sales sites that have handy input device functions compared to PCs that can use input devices with rich functions such as keyboards and mice. Enforcement may reduce the opportunity to provide information about related products.

  Therefore, an object of the present invention is to provide information related to product sales that is more actively adapted to the user before browsing individual product pages.

  Instead of focusing on “products” as in the past, the present inventors focused on “people” who have selected products, and information on users who have accessed the product sales site and have high similarity in product selection. Based on this, the present inventors have found a method that can provide merchandise sales information accurately and have completed the present invention. More specifically, the following is provided.

(1) A method in which a server provides information related to product sales via a communication network,
Receiving input of user ID data indicating a user;
Receiving a selection of a product by the user;
Storing product ID data indicating the received product as a user-specific product selection table in association with the user ID data;
Calculating a product selection similarity between users based on the product selection table for each user and storing it as a product selection similarity table;
Transmitting the user-specific product selection table of a user whose product selection similarity with the user is equal to or greater than a predetermined value to the user based on the product selection similarity table.

  According to the invention of (1), the server can transmit to the user information on the user-specific product selection table of the user whose product selection similarity is equal to or greater than a predetermined value. Accordingly, the user can make a decision to purchase a product while referring to the user-specific product selection table before browsing the individual product page.

(2) In the step of accepting selection of the product, accepting input of product classification keyword data representing the classification of the product by the user;
The method according to (1), wherein the product classification keyword data is further stored in the storing step.

  According to the invention of (2), the server accepts the input of the product classification keyword data by the user and stores it in the user-specific product selection table. Accordingly, the product selection similarity can be calculated based on the product classification keyword data input by the user as a part of the attribute information of the selected product.

(3) In the step of accepting selection of the product, accepting designation of different weights for the product,
The method according to (1) or (2), wherein in the storing step, weight data representing the weight whose designation has been received is stored together.

  According to the invention of (3), the server can store the weight data designated by the user in the user-specific product selection table. Thus, the product selection similarity can be calculated in consideration of the weight data.

(4) including a step of accepting input of disclosure restriction data of the user-specific product selection table for other users by the user;
In the storing step, the disclosure restriction data is stored together,
The method according to any one of (1) to (3), wherein, in the transmitting step, transmission is restricted based on the disclosure restriction data.

  According to the invention of (4), the server can disclose the user-specific product selection table only for users who have permitted other users to disclose the user-specific product selection table. This makes it possible to appropriately deal with users who do not permit such disclosure.

(5) including a step of receiving input of evaluation data related to the selected product by the user;
In the storing step, the evaluation data is stored together,
The method according to any one of (1) to (4), including a step of transmitting the evaluation data to the user in response to a request from the user.

  According to invention of (5), the server can memorize | store together the evaluation data regarding the said goods by a user. Thereby, the user can browse the evaluation data by other users whose product selection similarity is equal to or higher than a predetermined value.

  (6) In response to a request by the user, a product selection ranking is calculated based on the user-specific product selection table of a user whose product selection similarity with the user is a predetermined value or more, and transmitted to the user The method according to any one of (1) to (5), including the step of:

  According to the invention of (6), the server can provide the user with ranking information based on the product selection table of another user whose product selection similarity is equal to or greater than a predetermined value. Thereby, the user can know the product selection tendency of the other user at a time without browsing the product selection table of each of the other users whose product selection similarity is a predetermined value or more.

  (7) In response to a request by the user, including a step of transmitting to the user the user-specific product selection table of the user whose product selection similarity with the user designated by the user is a predetermined value or more. The method according to any one of (1) to (5).

  According to the invention of (7), the server can provide the user with the user-specific product selection table of the user whose product selection similarity is equal to or higher than a predetermined value with other users specified by the user. Thereby, the user can browse the user-specific product selection table of a user whose product selection similarity is equal to or higher than a predetermined value, for example, with another user who wants to give a present.

  (8) In response to a request from the user, a product selection ranking is calculated based on the user-specific product selection table of a user whose product selection similarity with the user designated by the user is a predetermined value or more, and the user The method according to any one of (1) to (5), including a step of transmitting to.

  According to the invention of (8), the server may provide the user with ranking information based on the product selection table of another user whose product selection similarity is equal to or greater than a predetermined value with the other user specified by the user. it can. This allows the user to, for example, the other user's product at one time without browsing the product selection table of each of the other users whose product selection similarity is equal to or greater than a predetermined value with other users who wish to give presents. You can know the selection tendency.

(9) A server that provides information on product sales via a communication network,
Means for accepting input of user ID data indicating a user;
Means for accepting selection of a product by the user;
Means for storing product ID data indicating the received product as a user-specific product selection table in association with the user ID data;
Means for calculating a product selection similarity between users based on the user-specific product selection table, and storing as a product selection similarity table;
Means for transmitting, to the user, the user-specific product selection table of a user whose product selection similarity with the user is a predetermined value or more based on the product selection similarity table.

  According to the invention of (9), a server that provides the same effect as in (1) can be realized.

(10) A program for causing a server to provide information on product sales via a communication network,
Receiving input of user ID data indicating a user;
Receiving a selection of a product by the user;
Storing product ID data indicating the received product in association with the user ID data as a user-specific product selection table;
Calculating a product selection similarity between users based on the product selection table for each user, and storing it as a product selection similarity table;
A program for causing the server to execute, based on the product selection similarity table, causing the user to transmit the user-specific product selection table of a user whose product selection similarity with the user is a predetermined value or more. .

  According to the invention of (10), a program that provides the same effect as in (1) can be realized.

  ADVANTAGE OF THE INVENTION According to this invention, merchandise sales information can be provided exactly based on the information of the user who accessed the merchandise sales site and the user whose product selection similarity is a predetermined value or more.

  An example of a preferred embodiment according to the present invention will be described below based on the drawings.

[System overall configuration]
FIG. 1 is a block diagram showing the overall configuration of a computer system 1 that implements a computer arithmetic processing method according to an example of a preferred embodiment of the present invention. A terminal group 20 composed of one or a plurality of terminals such as the server 10 and the terminals 20 a and 20 b is connected via a communication network 30 or a base station 15.

[Server configuration]
FIG. 2 is a block diagram showing the configuration of the server 10 that implements the information providing method according to an example of the preferred embodiment of the present invention. The server control unit 110, the server display unit 120, the server input unit 130, the server communication control unit 140, and the server storage unit 150 are connected via a server bus 160.

  The server control unit 110 is an information processing unit that performs calculation and processing of information, and may be a CPU (Central Processing Unit). In addition, the server control unit 110 controls the entire server 10 and appropriately reads and executes various programs stored in the server storage unit 150, whereby the above-described hardware cooperates and performs various functions according to the present invention. Realized.

  Here, the server display unit 120 displays a screen for accepting data input to the user or displays a screen of a calculation processing result by the server 10. The server display unit 120 is a cathode ray tube display device (CRT), a liquid crystal display device ( LCD).

  Here, the server input unit 130 accepts input by the user, and may include a keyboard, a pointing device, and the like. The server input unit 130 can be connected to the server control unit 110 directly or via an intervening I / O controller.

  Here, the server communication control unit 140 is a network adapter for enabling the server 10 to be connected to a terminal via a dedicated network or a public network. The server communication control unit 140 may include a modem, a cable modem, an Ethernet (registered trademark) adapter, and a wireless adapter.

  Here, the server storage unit 150 includes a local memory used for executing a program in combination with the server control unit 110, a large-capacity bulk memory, and a cache memory used for efficiently searching the bulk memory. It's okay. The computer readable medium that implements the server storage unit 150 may include an electrical, magnetic, optical, or electromagnetic implementation. More specifically, semiconductor storage devices, magnetic tapes, flexible disks, random access memory (RAM), read only memory (ROM), optical disks including CD-ROM, CD-R / W and DVD are included. It is.

[Communication network configuration]
Further, the communication network 30 may be realized by a wired network including a dedicated line, a dial-up network connected via a modem or a terminal adapter, ADSL, and an optical cable. Further, it may be realized by a wireless network including a wireless network for mobile terminals such as a wireless LAN and a mobile phone. Further, it may be realized by combining these networks in the communication path between the server 10 and the terminal group 20.

  In addition, as a communication protocol for realizing the communication network 30, various communication protocols for realizing information communication necessary for implementing the present invention, such as an Internet protocol such as TCP / IP, may be adopted. Further, it may be realized by using a protocol for Web services such as SOAP (Simple Object Access Protocol).

  As described above, the computer system 1 can implement the computer processing method according to the present invention by the server 10 and the terminal group 20 connected via the communication network 30.

  Moreover, although only one server 10 is shown in FIG. 1, the technical scope of the present invention is not limited to this, and may be realized by a plurality of servers. Further, it may be realized as a server system having a so-called three-layer structure of a Web server, an application server, and a database server. May be.

[Terminal configuration]
FIG. 3 is a block diagram showing the configuration of the terminal 20a according to the present invention. The terminal display unit 220, the terminal operation input unit 230, the transmission / reception unit 240, the terminal storage unit 250, the call control unit 260, and the voice input / output unit 270 are connected via the terminal control unit 210.

  The terminal control unit 210 has the same configuration as the server control unit 110 described above, controls the entire terminal, reads and executes various programs stored in the terminal storage unit 250, and executes the above hardware. Cooperate to realize various functions according to the present invention.

  Here, the terminal display unit 220 may be realized as a display device such as a liquid crystal display or an organic EL display. Further, the terminal operation input unit 230 may be realized by, for example, a multidirectional key (such as a command navigation button) of a mobile phone, an operation button such as a dial button, or the like. The transmission / reception unit 240 may be realized by a mobile phone antenna or the like. The terminal storage unit 250 may include a local memory used for program execution in combination with the terminal control unit 210, a large-capacity bulk memory, and a cache memory used for efficiently searching the bulk memory. The call control unit 260 may be realized by an antenna drive circuit of a mobile phone. The voice input / output unit 270 may be realized by a microphone, a speaker, or the like of a mobile phone.

  FIG. 4 is a block diagram showing the configuration of the terminal 20b according to the present invention. The terminal control unit 310, the terminal display unit 320, the terminal input unit 330, the terminal communication control unit 340, and the terminal storage unit 350 are connected via a terminal bus 360.

  The terminal control unit 310 has the same configuration as the server control unit 110 described above, controls the entire terminal, reads and executes various programs stored in the terminal storage unit 350, and executes the hardware described above. Cooperate to realize various functions according to the present invention.

  Here, the terminal display unit 320, the terminal input unit 330, the terminal communication control unit 340, and the terminal storage unit 350 are the same as the server display unit 120, the server input unit 130, the server communication control unit 140, and the server storage unit 150, respectively. With the configuration of

[User ID input processing]
FIG. 5 is a flowchart showing user ID input processing by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 receives input of a user ID and a password from the terminals 20a and 20b via the communication network 30 (step S101).

  Next, the server control unit 110 determines whether or not the received user ID and password match the registered user ID and password (step S102).

  The server control unit 110 completes the process if the determination result in step S101 matches, and returns to step S101 if it does not match, and again inputs the user ID and password. Accept.

[User ID input screen]
FIG. 6 is a block diagram showing a user ID input screen displayed on the terminals 20a and 20b in the computer system 1 related to the user ID input process described above. As shown in the figure, on the initial screen (a) displayed on the terminals 20a and 20b, when a “login” link is clicked, a login screen (b) in which a user ID and password can be entered is displayed. Here, when the user ID and password are entered, if the entered user ID and password match the registered user ID and password, a “menu screen” (c) dedicated to the member is displayed. On this screen, it is possible to browse information such as a “My list” described later.

[My list display screen]
FIG. 7 is a block diagram showing a My list screen displayed on the terminals 20a and 20b in the computer system 1 according to an example of the preferred embodiment of the present invention. This is displayed when the “My list” link is clicked on the member-only “menu screen” described with reference to FIG. In the My list screen, products designated in the past are automatically listed and displayed for each category such as keep list, My wish, and collection. In addition, a link to “Niteru list”, which will be described later, is displayed.

  FIG. 8 is a flowchart showing user ID registration processing by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 receives input of registration information from the terminals 20a and 20b via the communication network (step S201). Specifically, user IDs (nicknames), passwords, and e-mail addresses are accepted by text input, and the birth date, place of residence, sex, blood type, product category of interest, occupation / affiliation, birthplace, hobby by selection. , The public / private input of the “My list” as the user-specific product selection table is accepted.

  Next, the server control unit 110 determines whether or not the data received in step S201 matches the registered user ID and password (step S202).

  Next, if the server control unit 110 matches the registered user ID and password in step S202, the server control unit 110 ends the process. If the server control unit 110 does not match the registered user ID and password, the server control unit 110 returns the process to step S201, and again Accept registration information.

[User ID registration screen]
FIG. 9 is a block diagram showing a user ID registration screen related to the above-described user ID registration process. On this screen displayed on the terminals 20a and 20b, the user ID, password, e-mail address, date of birth, residence, sex, blood type, product category of interest, occupation / affiliation, birthplace, hobbies, and My list disclosure / Input or selection such as non-disclosure becomes possible.

  FIG. 10 is a flowchart showing a product selection input process by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 performs the above-described user ID input process (step S301).

  Next, the server control unit 110 accepts a product selection input from the terminals 20a and 20b via the communication network (step S302). Items to be received include a product ID, a selection level, a product classification keyword, an evaluation, and the like. The selection level can be selected as purchase, keep, or wish depending on the purchase possibility level. The server control unit 110 accepts such a purchase possibility level as weight data for the product.

  Next, the server control unit 110 stores the data received in step S302 in the server storage unit 150 as a user-specific product selection table (step S303).

[Product selection input screen]
FIG. 11 is a block diagram showing a product selection input screen related to the product selection input process described above. The product category, product name, price, average user satisfaction, qualitative data, comments, etc. of the selected product are displayed on the terminals 20a, 20b. The user refers to these pieces of information and determines whether to select the product.

  On the screen, an “Add to My List” link for accepting selection of the product is displayed. When the server control unit 110 receives a click on the “Add to My List” link, an “Addition Registration Screen to My List” described later is displayed.

[Additional registration screen to My list]
FIG. 12 is a block diagram illustrating an additional registration screen for the My list according to the above-described product selection input process. In this screen displayed on the terminals 20a and 20b, the user can select addition to the purchase list, the keep list, or the wish list according to the purchase possibility.

[Product classification keyword input screen]
FIG. 13 is a block diagram showing a product classification keyword input process screen for the My list related to the product selection input process described above. For example, when the “Add to purchase list” link is clicked on the “Add to My list registration screen” described with reference to FIG. 12, an input screen displayed on the terminals 20a and 20b is displayed. The user can input the product classification keyword on this screen.

[Product evaluation input screen]
FIG. 14 is a block diagram illustrating a product evaluation input screen according to the above-described product selection input process. For each of price, ease of use, and cost performance, a selection screen of good, normal, and bad is displayed on the terminals 20a and 20b. In addition, a selectable screen is displayed for the satisfaction level by a list. For feelings, check boxes such as “best for present”, “beautiful”, “impressive”, “interesting” are displayed.

[Product Selection Table by User]
FIG. 15 is a diagram showing a user-specific product selection table by the computer system according to an example of the preferred embodiment of the present invention. For example, in the column of the user 1, 1 point is displayed for the product 2, 2 points are displayed for the product 3..., 1 point is displayed for the product 1, 3 points are displayed for the product 2. The method of determining the score may be determined based on, for example, a purchase possibility, and may be a purchase list: 3 points, a keep list: 2 points, a My wish list: 1 point, and not selected: 0 points.

  FIG. 16 is a flowchart showing a merchandise selection similarity table generation process by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 determines whether or not a product selection input from the terminals 20a and 20b has been received via the communication network 30 (step S401).

  Next, when the product selection input is received, the server control unit 110 calculates the product selection similarity between users based on the user-specific product selection table, and generates a product selection similarity table (described later) (step). S402).

で演算できる。
上述の場合、

となる。 [Product selection similarity table]
FIG. 17 is a diagram showing a product selection similarity table by a computer system according to an example of the preferred embodiment of the present invention. For example, the similarity determination method stored as 3 points for the similarity between the user 1 and the user 2 and 2 points for the similarity between the user 1 and the user 3 is stored in the data of the user-specific product selection table described above. Various methods are possible based on this. For example, if M is the number of products

It can be calculated with.
In the above case,

It becomes.

  FIG. 18 is a flowchart showing a product selection table display process by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 performs a user ID input process (step S501).

  Next, based on the product selection similarity table, the server control unit 110 displays a product selection table of another user whose similarity with the user is equal to or greater than a predetermined value as a “list” (step) S502). In this way, the user can refer to the “My List” of other users whose product selection similarity with the user is a predetermined value or more simply by logging in without selecting any product.

[List display screen]
FIG. 19 is a block diagram showing a display screen of “list of choices” related to the above-described product selection table display processing. The keep lists, My wishes, and collections of other users whose product selection similarity is equal to or higher than a predetermined value are displayed on the terminals 20a and 20b. At the bottom of the screen, a link “view another list” is displayed, and a My list of another user can be referred to.

  FIG. 20 is a flowchart showing a product selection ranking display process by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 performs a user ID input process (step S601).

  Next, the server control unit 110 determines another user whose product selection similarity with the user is a predetermined value or more based on the user-specific product selection similarity table, and determines the determined other user's Based on the product selection table, the product selection ranking is totaled and calculated and displayed (step S602).

[Product selection ranking display screen]
FIG. 21 is a block diagram showing a product selection ranking display screen according to the above-described product selection ranking display processing. The user-specific product selection table is aggregated only for other users whose product selection similarity with the user is equal to or greater than a predetermined value, and is displayed on the terminals 20a and 20b as keep ranking, My wish ranking, and collection ranking, respectively.

  FIG. 22 is a flowchart showing a product selection table display process of a designated user by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 performs a user ID input process (step S701).

  Next, the server control unit 110 accepts input of the user ID of the designated user from the terminals 20a and 20b via the communication network 30 (step S702).

  Next, based on the user-specific product selection similarity table, the server control unit 110 displays a product selection table of a user whose product selection similarity with the designated user is a predetermined value or more (step S703).

[Designated user's "List of Lists" display screen]
FIG. 23 is a diagram showing a display screen of the “designated list” of the designated user related to the above-described product selection table display processing of the designated user. The keep lists, My wishes, and collections of other users whose product selection similarity is equal to or higher than a predetermined value are displayed on the terminals 20a and 20b.

  FIG. 24 is a flowchart showing the product selection ranking display processing of the designated user by the computer system according to an example of the preferred embodiment of the present invention.

  First, the server control unit 110 performs a user ID input process (step S801).

  Next, the server control unit 110 receives input of the user ID of the designated user from the terminals 20a and 20b via the communication network 30 (step S802).

  Next, the server control unit 110 determines a user whose product selection similarity with the designated user is a predetermined value or more based on the product selection similarity table, and totals the product selection table only for the determined user. Calculate and display the product selection ranking (step S803).

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. is not.

It is a block diagram showing the whole structure of the computer system 1 which implements the computer arithmetic processing method concerning an example of suitable embodiment of this invention. It is a block diagram which shows the structure of the server 10 which implement | achieves the information provision method which concerns on an example of suitable embodiment of this invention. It is a block diagram which shows the structure of the terminal 20a which concerns on this invention. It is a block diagram which shows the structure of the terminal 20b which concerns on this invention. It is a flowchart which shows the user ID input process by the computer system which concerns on an example of suitable embodiment of this invention. It is a block diagram which shows the user ID input screen displayed on terminal 20a, 20b in the computer system 1 which concerns on the above-mentioned user ID input process. It is a block diagram which shows My list screen displayed on terminal 20a, 20b in the computer system 1 which concerns on an example of suitable embodiment of this invention. It is a flowchart which shows the user ID registration process by the computer system which concerns on an example of suitable embodiment of this invention. It is a block diagram which shows the user ID registration screen which concerns on the above-mentioned user ID registration process. It is a flowchart which shows the goods selection input process by the computer system which concerns on an example of suitable embodiment of this invention. It is a block diagram which shows the goods selection input screen which concerns on the above-mentioned goods selection input process. It is a block diagram which shows the additional registration screen to the My list which concerns on the above-mentioned goods selection input process. It is a block diagram which shows the goods classification keyword input process screen to the My list which concerns on the above-mentioned goods selection input process. It is a block diagram which shows the goods evaluation input screen which concerns on the above-mentioned goods selection input process. It is a figure which shows the goods selection table classified by user by the computer system which concerns on an example of suitable embodiment of this invention. It is a flowchart which shows the goods selection similarity table production | generation process by the computer system which concerns on an example of suitable embodiment of this invention. It is a figure which shows the goods selection similarity table by the computer system which concerns on an example of suitable embodiment of this invention. It is a flowchart which shows the goods selection table display process by the computer system which concerns on an example of suitable embodiment of this invention. It is a block diagram which shows the display screen of the "general list" which concerns on the above-mentioned goods selection table display process. It is a flowchart which shows the goods selection ranking display process by the computer system which concerns on an example of suitable embodiment of this invention. It is a block diagram which shows the display screen of the goods selection ranking which concerns on the above-mentioned goods selection ranking display process. It is a flowchart which shows the designated user's goods selection table display process by the computer system which concerns on an example of suitable embodiment of this invention. It is a figure which shows the display screen of the "designated list" of the designated user which concerns on the above-mentioned goods selection table display process of the designated user. It is a flowchart which shows the goods selection ranking display process of the designated user by the computer system which concerns on an example of suitable embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Computer system 10 Server 20a, 20b Terminal 20 Terminal group 30 Communication network 110 Server control part 120 Server display part 130 Server input part 140 Server communication control part 150 Server memory | storage part 160 Server bus 210 Terminal control part 220 Terminal display part 230 Terminal operation Input unit 240 Transmission / reception unit 250 Terminal storage unit 260 Call control unit 270 Voice input / output unit 310 Terminal control unit 320 Terminal display unit 330 Terminal input unit 340 Terminal communication control unit 350 Terminal storage unit 360 Terminal bus

Claims (10)

A method in which a server provides information about product sales via a communication network,
Receiving input of user ID data indicating a user;
Receiving a selection of a product by the user;
Storing product ID data indicating the received product as a user-specific product selection table in association with the user ID data;
Calculating a product selection similarity between users based on the product selection table for each user and storing it as a product selection similarity table;
Transmitting the user-specific product selection table of a user whose product selection similarity with the user is equal to or greater than a predetermined value to the user based on the product selection similarity table. In the step of accepting the selection of the product, the user accepts input of product classification keyword data representing the classification of the product,
The method according to claim 1, wherein the product classification keyword data is further stored in the storing step. In the step of accepting the selection of the product, accepting a designation of a different weight for the product,
The method according to claim 1, wherein in the storing step, weight data representing the weight for which the designation has been received is stored together. Receiving the input of disclosure restriction data of the user-specific product selection table for other users by the user,
In the storing step, the disclosure restriction data is stored together,
The method according to claim 1, wherein in the transmitting step, transmission is limited based on the disclosure restriction data. Receiving the input of evaluation data related to the selected product by the user,
In the storing step, the evaluation data is stored together,
The method in any one of Claims 1-4 including the step which transmits the said evaluation data with respect to the said user according to the request | requirement by the said user.   In response to a request by the user, calculating a product selection ranking based on the user-specific product selection table of a user whose product selection similarity is equal to or greater than a predetermined value, and transmitting to the user 6. A method according to any of claims 1 to 5, comprising.   The method according to claim 1, further comprising: transmitting to the user the user-specific product selection table of a user whose product selection similarity with the user designated by the user is a predetermined value or more in response to a request from the user. A method according to any of claims 5 to 5.   In response to a request by the user, the product selection similarity with the user designated by the user is calculated based on the user-specific product selection table of the user having a predetermined value or more, and the product selection ranking is calculated for the user. 6. A method according to any preceding claim, comprising the step of transmitting. A server that provides information on product sales via a communication network,
Means for accepting input of user ID data indicating a user;
Means for accepting selection of a product by the user;
Means for storing product ID data indicating the received product as a user-specific product selection table in association with the user ID data;
Means for calculating a product selection similarity between users based on the user-specific product selection table, and storing as a product selection similarity table;
Means for transmitting, to the user, the user-specific product selection table of a user whose product selection similarity with the user is a predetermined value or more based on the product selection similarity table. A program for causing a server to provide information related to product sales via a communication network,
Receiving input of user ID data indicating a user;
Receiving a selection of a product by the user;
Storing product ID data indicating the received product in association with the user ID data as a user-specific product selection table;
Calculating a product selection similarity between users based on the product selection table for each user, and storing it as a product selection similarity table;
A program for causing the server to execute, based on the product selection similarity table, causing the user to transmit the user-specific product selection table of a user whose product selection similarity with the user is a predetermined value or more. .

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