Document retrieval method and system and computer readable storage medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 16, 2003
Grant Date -
N/A
app pub date -
Aug 24, 2000
filing date -
May 9, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A document retrieval system is provided which has a document display interface which is easy to recognize the important portions even if a document retrieved by using a query expression designated by a document or a long sentence is displayed. When a text is registered, predetermined character strings and location information which are extracted from the text are stored in a location information file. A weight of each character string is calculated by a predetermined method and is stored in a weight file. In retrieving a document, predetermined character strings are extracted from a designated query expression. A similarity is calculated between the query expression and texts in the database by using the location information and the weights acquired from the location file and the weight file. In displaying the document, character strings having the high weights are extracted from the character strings used for the retrieval. Then, the display format of a portion which contains the extracted character strings is changed to display the text.
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