INFORMATION STREAM RETRIEVAL METHOD AND DEVICE AND STORAGE MEDIUM RECORDED WITH INFORMATION STREAM RETRIEVAL PROGRAM

摘要

PROBLEM TO BE SOLVED: To retrieve the transitions of objective topics from the transitions of the topics of a document extracted from an information transmission medium and to sequence and provide them in an order suited to a retrieval request. ;SOLUTION: In a document storage part 102, document information inputted in a document input part 101 is stored. In an information stream extraction part 103, classification by time information and classification by topics are executed to a document set inputted in the document input part 101, the documents classified into individual topics are arranged by using the time information and an information stream is generated. In a retrieval request input part 104 the document in which a word desired to be retrieved or information desired to be retrieved is written is specified from the extracted information stream and the retrieval request is originated. In an information stream retrieval part 105, the documents or classification categories satisfying a retrieval condition are extracted from the information stream extracted in the information stream extraction part 103, the similarity with the retrieval condition of them is calculated and they are displayed at a display part 106 sequentially as a retrieved result starting from the information stream of high similarity.;COPYRIGHT: (C)2000,JPO