Invention Grant
US09249287B2 Document evaluation apparatus, document evaluation method, and computer-readable recording medium using missing patterns
有权
文献评估装置,文件评价方法以及使用缺失图案的计算机可读记录介质
- Patent Title: Document evaluation apparatus, document evaluation method, and computer-readable recording medium using missing patterns
- Patent Title (中): 文献评估装置,文件评价方法以及使用缺失图案的计算机可读记录介质
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Application No.: US14002692Application Date: 2013-02-18
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Publication No.: US09249287B2Publication Date: 2016-02-02
- Inventor: Yusuke Muraoka , Dai Kusui , Yukitaka Kusumura , Hironori Mizuguchi
- Applicant: Yusuke Muraoka , Dai Kusui , Yukitaka Kusumura , Hironori Mizuguchi
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wilmer Cutler Pickering Hale and Dorr LLP
- Priority: JP2012-038286 20120224
- International Application: PCT/JP2013/053856 WO 20130218
- International Announcement: WO2013/125482 WO 20130829
- Main IPC: G06F15/18
- IPC: G06F15/18 ; C08L23/06 ; B29C47/00 ; C08J3/22 ; G06N3/08 ; B29C43/24 ; B29C45/00

Abstract:
In order to accurately learn a function for evaluating documents, even in the case where sample documents having missing feature values are included as training data, a document evaluation apparatus is provided with a data classification unit (3) that classifies a set of sample documents based on missing patterns of a first feature vector, a first learning unit (4) that uses feature values that are not missing in the first feature vector and evaluation values to learn a first function for calculating a first score which is a weighted evaluation value for each classification, a feature vector generation unit (5) that computes a feature value corresponding to each classification using the first score, and generates a second feature vector having the computed feature values, and a second learning unit (6) that uses the second feature vector and the evaluation values to learn a second function for calculating a second score for evaluating documents targeted for evaluation.
Public/Granted literature
- US20130332401A1 DOCUMENT EVALUATION APPARATUS, DOCUMENT EVALUATION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM Public/Granted day:2013-12-12
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