Name
Abstract | ||
|---|---|---|
This paper describes our retrieval system partici- pated in the Patent Retrieval Task at the Fourth NTCIR Workshop. The main task was an associative patent re- trieval task, in which a patent application including a target claim is used to search documents that can in- validate the demand in the claim. Our system can be characterized by the structure analysis for both target claim and entire application. Based on the rhetori- cal structure, a claim is segmented into multiple com- ponents, each of which is used to produce an initial query. The structure of an application is used to en- hance each query. The candidates of relevant docu- ments are retrieved and ranked on a component-by- component basis. The final document list is obtained by integrating these documents lists. All passages in each document are ranked according to the relevance to the target claim. We show the effectiveness of our system by means of the formal run evaluation. Keywords: Patent retrieval, Invalidity search, Document structure analysis, Associative retrieval |
Year | Venue | Field |
|---|---|---|
2004 | NTCIR | Structure analysis,Associative property,Ranking,Information retrieval,Computer science,Patent application,Document Structure Description,Patent retrieval,Rhetorical question |
DocType | Citations | PageRank |
Conference | 4 | 0.75 |
References | Authors | |
2 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Atsushi Fujii | 1 | 486 | 59.25 |
| Tetsuya Ishikawa | 2 | 226 | 30.46 |