INFORMATION SELECTING APPARATUS AND METHOD, AND COMPUTER PROGRAM

摘要

Identifiers are of items or categories assigned to the respective items. A price influence degree of each of identifiers associated with a base identifier is calculated from price information of the identifier through the use of a price influence function. A selection index of each of the identifiers associated with the base identifier is calculated according to a rule such that the calculated selection index will increase as a degree of association with the base identifier is greater and the calculated price influence degree is greater. Identifiers each great in calculated selection index are preferentially selected from the identifiers associated with the base identifier. Items or categories having identifiers equal to the selected identifiers may be recommended to a user.