The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2016
Filed:
Nov. 06, 2008
Yukitaka Kusumura, Tokyo, JP;
Toshiyuki Kamiya, Tokyo, JP;
Yukitaka Kusumura, Tokyo, JP;
Toshiyuki Kamiya, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A document management & retrieval system is configured to: store, for each word in a set of words, appearance positions of the each word in a set of documents as a word index; store, for each tag in a set of tags attached to words, a set of words that appear to a right and left of the each tag, and also store, as a tag LR index, appearance positions of the each tag in a set of documents with a combination of the each tag and a word appearing to its right or a combination of the each tag and a word appearing to its left as a key; and, in a tag search where a query phrase contains words and a tag next to each other, refer to the index with a tag and the word to the right or left of the tag as a key, thereby reducing the size of a document list to be read without needing to have a tag name as a secondary key. A tag is updated by just updating two places in the tag LR index.