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:
Feb. 04, 2014
Filed:
Jul. 02, 2009
Yuk Wah Wong, Pittsburgh, PA (US);
Dominic Widdows, Pittsburgh, PA (US);
Thomas David Lokovic, Murrysville, PA (US);
Kamal P. Nigam, Pittsburgh, PA (US);
Yuk Wah Wong, Pittsburgh, PA (US);
Dominic Widdows, Pittsburgh, PA (US);
Thomas David Lokovic, Murrysville, PA (US);
Kamal P. Nigam, Pittsburgh, PA (US);
Google Inc., Mountain View, CA (US);
Abstract
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for attribute-value extraction from structured documents. In one aspect, a method includes obtaining an initial attribute whitelist, extracting candidate attributes from a first collection of documents, and grouping the candidate attributes. The method further includes calculating a score for each unique attribute in the candidate attributes, generating an expanded attribute whitelist including the initial attributes and each unique attribute having a score that satisfies a threshold, and using the expanded attribute whitelist to identify valid attribute-value pairs. In another aspect, a method includes extracting candidate attribute-value pairs from a collection of documents and identifying one or more features for each candidate attribute-value pair. The method further includes filtering out non valid attribute-value pairs.