S
Sachio Hirokawa
Researcher at Kyushu University
Publications - 282
Citations - 1221
Sachio Hirokawa is an academic researcher from Kyushu University. The author has contributed to research in topics: Web page & Support vector machine. The author has an hindex of 16, co-authored 282 publications receiving 1129 citations. Previous affiliations of Sachio Hirokawa include Fujitsu & Shizuoka University.
Papers
More filters
Proceedings ArticleDOI
Testbed for information extraction from deep web
TL;DR: This work proposes a test bed for information extraction from search results, selected 51 databases which include URLs in a results page and manually identify target information to be extracted, and suggests evaluation measures for comparing extraction methods and methods for extending the target data.
Proceedings ArticleDOI
Feature words that classify problem sentence in scientific article
Toshihiko Sakai,Sachio Hirokawa +1 more
TL;DR: This paper focuses on sentences that describe the problem in an abstract and the feature sets that classify such problem sentences, and finds that the feature words are effective in improving classification performance.
Book ChapterDOI
Learning analytics for E-book-based educational big data in higher education
Hiroaki Ogata,Misato Oi,Kousuke Mohri,Fumiya Okubo,Atsushi Shimada,Masanori Yamada,Jingyun Wang,Sachio Hirokawa +7 more
TL;DR: Why the e-book system was introduced in university education and initial findings are described, and why the research issues of this project are revealed.
Journal ArticleDOI
A Predictive Model to Evaluate Student Performance
TL;DR: A new approach based on text mining techniques for predicting student performance using LSA (latent semantic analysis) and K-means clustering methods using free-style comments written by students after each lesson is proposed.
Proceedings ArticleDOI
A Restaurant Recommender System Based on User Preference and Location in Mobile Environment
TL;DR: The result of a case study shows that the proposed restaurant recommender system can effectively utilize user's preference and the location information to recommend the personalized and suitable restaurants for different users.