広告情報を検索するためのシステムおよび方法、広告情報を配信するためのシステムおよび方法、ならびに、情報が記録された機械可読媒体

摘要

Method and system for retrieving advertisement information. Information characterizing a user's past search behavior is utilized in creating index data that associate individual users to advertisements. When a search request from a user is received, the index data are utilized to identify one or more advertisements with respect to the received user's search request. Such identified advertisements match the user's past search behavior.