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:
Apr. 07, 2015
Filed:
Jan. 14, 2013
International Business Machines Corporation, Armonk, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method extract off-topic parts from a conversation. The system includes a first corpus including documents of a plurality of fields; a second corpus including only documents of a field to which the conversation belongs; a determination means for determination as a lower limit subject word a word for which IDF value for the first corpus and IDF value for the second corpus are each below a first certain threshold value; a score calculation part for calculation as a score a TF-IDF value for each word included in the second corpus; a clipping part, for sequential cutting out of intervals from text data that are contents of the conversation; and an extraction part for extraction as an off-topic part an interval where average value of the score of words included in the clipped interval is larger than a second certain threshold value.