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:
Jul. 07, 2015
Filed:
Apr. 20, 2011
Masahiro Saikou, Tokyo, JP;
Kiyokazu Miki, Tokyo, JP;
Masahiro Saikou, Tokyo, JP;
Kiyokazu Miki, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A perplexity calculation deviceincludes: a weight coefficient calculating partfor, with respect to each of a plurality of text constituent words constituting a text, calculating a weight coefficient for correcting a degree of ease of word appearance having a value which becomes larger as a probability of appearance of the text constituent word becomes higher based on a statistical language model showing probabilities of appearance of words, based on word importance representing a degree of importance of the text constituent word; and a perplexity calculating partfor calculating perplexity of the statistical language model to the text, based on the calculated weight coefficients and the degrees of ease of word appearance.