RETRIEVAL SYSTEM, RETRIEVAL SPACE MAP SERVER APPARATUS AND PROGRAM

摘要

To provide a retrieval space map in which the ratio of unnecessary files included in the retrieval result can be decreased. One or more retrieval object spaces (retrieval objects) in which a file suitable for a retrieval purpose exists at high possibility are predefined according to the retrieval purpose under a condition containing a number of retrieval objects, and the space in which a necessary file exists at high possibility can be searched by designating the retrieval object to be suited for the retrieval purpose at the time of retrieval.