To easily and properly refine searches.
A search condition A is inputted via a user interface part 10 and sent to a document retrieval part 13 (X01). Either a full-text search performing part 20 or an attribute search performing part 22 performs a search about the search condition A and outputs the search result to a search result acquisition part 14 (X02). The search result acquisition part 14 delivers the search result to an important word extracting part 14 and refers to a related document search index to request a group of characteristic important words to be obtained (X03). A display synthesizing part 16 receives the group of important words (characteristic words) and creates display data for display together with the search result, and the user interface part 10 displays the data (X04). A search refinement button B is operated to refine the search (X05). The display of the search result and the search refinement can be easily repeated by operation of the search button B.
| WO/2013/064505 | METHOD AND SYSTEM FOR DETERMINING A POPULARITY OF ONLINE CONTENT |
| JP3345211 | [Title of Invention] Data Supply System |
| WO/2018/098427 | RECOGNIZING UNKNOWN DATA OBJECTS |
Masaaki Miyata
Eiji Yamada
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