Patent Document ID: 8370378
Application ID: 12785996

Base Claim:
1. A method, comprising: generating, with a processor of a server, first relational data based on electronic bulletin board content received from one or more user terminals, the generating including receiving the electronic bulletin board content including reference data corresponding to a first sale item selected from a plurality of predetermined sale items at one of the one or more user terminals, and reference data corresponding to a second sale item selected from the plurality of predetermined sale items at one of the one or more user terminals, extracting, from the electronic bulletin board content received from the one or more user terminals, the reference data corresponding to the first sale item and the reference data corresponding to the second sale item, associating the reference data of the first sale item with the reference data of the second sale item based on a relationship between the first sale item and the second sale item described in the electronic bulletin board content received from the one or more user terminals, and storing the association as the first relational data in a relational database; and generating purchase recommendation information recommending the purchase of at least one of the first sale item and the second sale item based on the generated first relational data, wherein the first relational data includes a degree of relevancy metric, the method further comprising generating additional relational data; determining whether any of the additional relational data corresponds to the first sale item and second sale item; increasing the degree of relevancy metric of the first relational data for each of the additional relational data determined to correspond to the first sale item and second sale item; and deleting each of the additional relational data determined to correspond to the first sale item and second sale item after increasing the degree of relevancy metric of the first relational data, and the relationship between the first sale item and the second sale item includes a relationship based on function, effect, compatibility, shape, or prior purchase history.

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Claim 2:
2. The method of claim 1 , wherein the first relational data includes data identifying the relationship between the first sale item and the second sale item, and the method further comprises: juxtaposing and configuring for display on a user terminal the reference data of the first sale item and relational data identifying the second sale item, the relational data being associated with the reference data of the first sale item and identifying the relationship between the first sale item and the second sale item.