ADVERTISEMENT IDENTIFICATION DEVICE, ADVERTISEMENT INFORMATION DATA STRUCTURE, ADVERTISEMENT IDENTIFICATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an advertisement identification device for identifying an advertisement while switching static scores of a plurality of logics.SOLUTION: The advertisement identification device includes: advertisement information storage means 11 storing advertisement information each including two or more records each including a static score that does not depend on an advertisement identifier and a query as well as a logic identifier, the advertisement information being sorted according to the static scores; inverted index storage means 12; identifying means 14 identifying the record of the advertisement information including the logic identifier received by logic identifier receiving means 13; advertisement identifying means 16 calculating an advertisement score as a sum of a dynamic score that is a score corresponding to the query and the static score included in the identified record using an inverted index having a keyword included in the query received by query receiving means 15, and identifying the advertisement identifier having the high advertisement score; and output means 17 outputting an identification result.