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:
Aug. 30, 2011
Filed:
Jan. 15, 2009
Mark J. Stefik, Portola Valley, CA (US);
Lichan Hong, Mountain View, CA (US);
Stuart K. Card, Los Altos, CA (US);
Peter L. Pirolli, San Francisco, CA (US);
Mark J. Stefik, Portola Valley, CA (US);
Lichan Hong, Mountain View, CA (US);
Stuart K. Card, Los Altos, CA (US);
Peter L. Pirolli, San Francisco, CA (US);
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Abstract
A system and method for providing a topic-directed search is provided, which advantageously harnesses user-provided topical indexes and an ability to characterize indexes according to how articles fall under their topical organizations. A corpus of articles and an index that includes topics from the articles is maintained. For each topic, a coarse-grained topic model is built, which includes the characteristic words included in the articles relating to the topic and scores assigned to the characteristic words. A search query is executed against the index. The topics that match the search terms are chosen by their scores. The topics that match the coarse-grained topic models and the articles corresponding to the search query are presented. In contrast to conventional search engines, search results are organized according to topic and search results can be offered across multiple indexes, where part of returned results are selected from most-relevant indexes with their most-relevant topics.