SACHIO HIROKAWA

ヒロカワサチオ | SACHIO HIROKAWA

Affiliation and department：

Research field (5)： Intelligent informatics , Biological, health, and medical informatics , Library/information science, humanistic/social informatics , Educational technology , Information theory

Research keywords (26)： feature engineering , feature selection , support vector machine , SVM , Learning Analytics , ラムダ計算 , 古典論理 , 型理論 , machine learning , 適切さの論理 , 情報検索 , 構成的論理 , 発見科学 , curry-Haward , パターン発見 , ジップの法則 , 推論 , 出現頻度 , パターン抽出 , 特許 , 概念辞書 , シソーラス , オントロジー , text mining , 検索エンジン , Search Engine

Research theme for competitive and other funds (32)：

2024 - 2029 テキストデータとの対話を可能にするマイニングシステムと可視化手法
2020 - 2023 データに基づく大学評価に関する実践的研究
2019 - 2023 Computational Implementation of a Verification Program of the Stress Assignment Theory of Words in English
2018 - 2023 論文の細粒度情報を用いた研究の相互関係理解
2016 - 2020 Improving Teaching Materials through Educational Big Data

2016 - 2020 Research on feedback based on studying behavior predicted from self-evaluated comments by student

2016 - 2019 Development and Evaluation of Project-Based Learning Support System Based on Social-Shared Regulated Learning Theory

2015 - 2018 Securing reliability in extracting minor topics from the Web

2015 - 2018 Development and application of a visualization tool for organizational assessment of educational activities

2014 - 2017 Study on Relation between Student Learning Situation and Lecture Evaluation Using Student Comments Collected After Every Lessons

2015 - 2017 Extraction Key Factors of Medical Process by Text Mining

2012 - 2014 Dual Bootstrap Mining with Feature Words and Contents Words

2005 - 2006 Automatic Attachment of Evaluation Information to Books with Dato Mining Technology and Construction of Book Recommendation System

2003 - 2006 Regeneration of Church's Lambda calculus on BCK logic

2004 - 2005 Web空間における自然な分布からの乖離現象解明

2004 - 2005 リンク情報とWebデータの半構造性を融合した高品質コンテンツ・マイニング

2003 - 2005 Development of Global Learning Community for Supporting International Exchange of Knowledge

2003 - 2003 リンク情報とWebデータの半構造性を融合した高品質コンテンツ・マイニング

2002 - 2002 リンク情報とWebデータの半構造性を融合した高品質コンテンツ・マイニング

2000 - 2002 Experimen system of Geometry Inference on Web

2001 - 2001 リンク情報とWebデータの半構造性を融合した高品質広域コンテンツ・マイニング

1998 - 2000 Researchy on Discovery science under networ

1998 - 2000 リンク情報からの知識網構成に関する研究

1998 - 1999 A Study of Substractural Logics

1998 - 1999 WWWリンク動的ナビゲーションの研究

1997 - 1999 Studies on logical structures of arithmetic and computation

1998 - 1998 リンク情報からの知識網構成に関する研究

1995 - 1997 STRUCTURE OF INFERENCE IN CONSTRUCTIVE LOGICS

1993 - 1994 STUDY ON INFERENCE SYSTEMS OF CONSTRUCTIVE LOGICS

インターネット上の知識網の研究

膨大な文書群に対する検索と分析システムの研究

Text Mining for Search and Analyse of Large Amount of Documents

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Papers (103)：

Naoto Kai, Kota Sakasegawa, Tsunenori Mine, Sachio Hirokawa. Machine Learning of Ambiguous Sentences and Analysis of relation between Ambiguous Sentences and Diagrams in Technical Manual for Tacit Knowledge Acquisition. International Journal of Smart Computing and Artificial Intelligence. 2021. 5. 1. 19-32
Sachio Hirokawa, Takahiko Suzuki, Tetsuya Nakatoh. Prediction of Category of Scientific Article by Graph Convolution. Proceedings - 2020 9th International Congress on Advanced Applied Informatics, IIAI-AAI 2020. 2020. 63-67
Kahori Ogashiwa, Masao Mori, Sachio Hirokawa. Text Mining of the Midterm Goals of National Universities for the Development of Their Individual Characteristics. The Journal of Information and Systems in Education. 2020. 19. 1. 15-20
Naoto Kai, Kota Sakasegawa, Tsunenori Mine, Sachio Hirokawa. Machine Learning of Ambiguous Sentences in Technical Manual for Tacit Knowledge Acquisition. 2019 International Congress on Applied Information Technology (AIT). 2019
Kahori Ogashiwa, Eiichi Takata, Tetsuya Oishi, Masao Mori, Sachio Hirokawa. Automatic Estimation and Feature Word Analysis of Universities Using University Medium-term Plans. IEEE/IIAI AIT 2019 Congress Book. 2019. 39-44

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MISC (324)：

川谷卓哉, 廣川佐千男, 峯恒憲, 伊東栄典. Unusual driving spots discovery from driving probe data using machine learning. 情報処理学会研究報告. ITS, 高度交通システム. 2019. 7. 1-6
Effect of specifying the number of word occurrence in identification of specific text description. 2018. 118. 99. 53-56
Tetsuya Nakatoh, Sachio Hirokawa, Toshiro Minami, Takeshi Nanri, Miho Funamori. Attribute-based quality classification of academic papers. Artificial Life and Robotics. 2018. 23. 2. 235-240
Takanori Yamashita, Naoki Nakashima, Sachio Hirokawa. Classification and feature extraction for text-based drug incident report. ACM International Conference Proceeding Series. 2018. 145-149
Toshiro Minami, Sachio Hirokawa, Yoko Ohura, Kiyota Hashimoto. A part-of-speech-based exploratory text mining of students’ looking-back evaluation. Advances in Intelligent Systems and Computing. 2018. 684. 61-72

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Patents (7)：

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Professional career (1)：

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Work history (4)：

2020/04 - 現在 JVIS RD center
2020/04 - 現在 Advanced Institute of Industrial Technology
2020/04 - 現在 Kyushu University
1996/05 - 2020/03 Kyushu University

Association Membership(s) (4)：

Association for Symbolic Logic , 電子情報通信学会 , ソフトウェア科学会 , 情報処理学会

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