INFORMATION RETRIEVAL SYSTEM, INFORMATION RETRIEVAL METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an information retrieval system which ensures both accuracy in retrieval and responsive performance in retrieval. SOLUTION: The information retrieval system includes: a retrieval index which can store score computation information acquired from other retrieval indexes or other information processing systems concerning index words; and a retrieval means which executes score computation by using the score computation information stored in the retrieval index for retrieval to generate the result of the retrieval. COPYRIGHT: (C)2009,JPO&INPIT