| 摘要 |
PURPOSE:To realize a high retrieval efficiency of document processing. CONSTITUTION:A retrieval processing part 4 and an adapted document extraction processing part 6 are provided, and the processing part 4 retrieves retrieval words held in a retrieval word holding part 2 and unadapted words held in an unadapted word holding part 3 with respect to a retrieval object document held in a retrieval object document holding part 1, and the processing part 6 extracts only words, which coincide with retrieval words held in the retrieval word holding part 2, out of retrieved words based on the retrieval result of the retrieval processing part 4. |
