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Framework for automatic information extraction from research papers on nanocrystal devices

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タイトル: Framework for automatic information extraction from research papers on nanocrystal devices
著者: Dieb, Thaer M. 著作を一覧する
Yoshioka, Masaharu 著作を一覧する
Hara, Shinjiro 著作を一覧する
Newton, Marcus C. 著作を一覧する
キーワード: annotated corpus
automatic information extraction
nanocrystal device development
nanoinformatics
text mining
発行日: 2015年 9月 8日
出版者: Beilstein-Institut
誌名: Beilstein journal of nanotechnology
巻: 6
開始ページ: 1872
終了ページ: 1882
出版社 DOI: 10.3762/bjnano.6.190
抄録: To support nanocrystal device development, we have been working on a computational framework to utilize information in research papers on nanocrystal devices. We developed an annotated corpus called "NaDev" (Nanocrystal Device Development) for this purpose. We also proposed an automatic information extraction system called "NaDevEx" (Nanocrystal Device Automatic Information Extraction Framework). NaDevEx aims at extracting information from research papers on nanocrystal devices using the NaDev corpus and machine-learning techniques. However, the characteristics of NaDevEx were not examined in detail. In this paper, we conduct system evaluation experiments for NaDevEx using the NaDev corpus. We discuss three main issues: system performance, compared with human annotators; the effect of paper type (synthesis or characterization) on system performance; and the effects of domain knowledge features (e.g., a chemical named entity recognition system and list of names of physical quantities) on system performance. We found that overall system performance was 89% in precision and 69% in recall. If we consider identification of terms that intersect with correct terms for the same information category as the correct identification, i.e., loose agreement (in many cases, we can find that appropriate head nouns such as temperature or pressure loosely match between two terms), the overall performance is 95% in precision and 74% in recall. The system performance is almost comparable with results of human annotators for information categories with rich domain knowledge information (source material). However, for other information categories, given the relatively large number of terms that exist only in one paper, recall of individual information categories is not high (39-73%); however, precision is better (75-97%). The average performance for synthesis papers is better than that for characterization papers because of the lack of training examples for characterization papers. Based on these results, we discuss future research plans for improving the performance of the system.
資料タイプ: article
URI: http://hdl.handle.net/2115/60145
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 吉岡 真治

 

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