| 摘要 |
PROBLEM TO BE SOLVED: To provide information processing technology that achieves efficient retrieval. SOLUTION: The information processor includes: a generation means extracting a retrieval attribute candidate of an image and a retrieval attribute candidate from retrieval history information of a user, and generating a retrieval condition candidate by combining the extracted retrieval attribute candidate with attribute value candidate; a presentation means presenting the retrieval condition candidates having another retrieval attribute different from a retrieval attribute selected by the user in common on a screen as one set; an advanced search means narrowing a retrieval range based on a retrieval condition selected by the user; and a first storage means storing the retrieval history information where a plurality of retrieval conditions selected in advanced search are associated. A determination means determines the order of the retrieval history information having the retrieval attribute different from the retrieval attribute constituting the retrieval condition selected by the user in common, in the retrieval history information obtained by narrowing the retrieval range on the basis of the retrieval condition having the same retrieval attribute as the retrieval attribute constituting the retrieval condition presently selected by the user, and extracts the retrieval attribute candidate and the value candidate. COPYRIGHT: (C)2011,JPO&INPIT
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