Complexity of the Combinator Reduction Machine. - Sachio Hirokawa (Theor. Comput. Sci., 1985)

One-Step Recurrent Terms in lambda-beta-Calculus. - Shoji Sekimoto; Sachio Hirokawa (Theor. Comput. Sci., 1988)

BCK-Formulas Having Unique Proofs. - Sachio Hirokawa (Category Theory and Computer Science, 1991)

Principal Type-Schemes of BCI-Lambda-Terms. - Sachio Hirokawa (TACS, 1991)

Prinipal Type Assignment to Lambda Terms. - Sachio Hirokawa (Int. J. Found. Comput. Sci., 1991)

Balanced Formulas, BCK-Minimal Formulas and Their Proofs. - Sachio Hirokawa (LFCS, 1992)

Converse Principal Type-Scheme Theorem in Lambda Calculus. - Sachio Hirokawa (Stud Logica, 1992)

The Number of Proofs for a BCK-Formula. - Yuichi Komori; Sachio Hirokawa (J. Symb. Log., 1993)

The Relevance Graph of a BCK-Formula. - Sachio Hirokawa (J. Log. Comput., 1993)

Principal Types of BCK-lambda-Terms. - Sachio Hirokawa (Theor. Comput. Sci., 1993)

Normal Proofs and Their Grammar. - Masako Takahashi; Yohji Akama; Sachio Hirokawa (Inf. Comput., 1996)

The proofs of alpha -> alpha in P-W. - Sachio Hirokawa (J. Symb. Log., 1996)

A reduction rule for Peirce formula. - Sachio Hirokawa; Yuichi Komori; Izumi Takeuti (Stud Logica, 1996)

KN on ZK - Knowledge Network on Network Note Pad ZK. - Sachio Hirokawa; Tsuyoshi Taguchi (Discovery Science, 1998)

Living with ZK-an approach towards communication with analogue messages. - Toshiro Minami; H. Sazuka; Sachio Hirokawa; Takeshi Ohtani (KES (1), 1998)

Infiniteness of Proof(alpha) is Polynomial-Space Complete. - Sachio Hirokawa (Theor. Comput. Sci., 1998)

Developing a Knowledge Network of URLs. - Daisuke Ikeda; Tsuyoshi Taguchi; Sachio Hirokawa (Discovery Science, 1999)

GUI for Geometric Inference Engine on Internet. - Keiichi Mishima; Sachio Hirokawa; Naoyuki Kato (WebNet, 1999)

Extraction Positive and Negative Keywords for Web Communities. - Daisuke Ikeda; Sachio Hirokawa (Discovery Science, 2000)

IntelligentBox: Its Aspects as a Rapid Construction System for Interactive 3D Games. - Yoshihiro Okada; Eisuke Itoh; Sachio Hirokawa (GAME-ON, 2000)

Long Normal Form Proof Search and Counter-Model Generation. - Sachio Hirokawa; Daisuke Nagano (Workshop on Type-Theoretic Languages: Proof Search and Semantics, 2000)

A Lambda Proof of The P-W Theorem. - Sachio Hirokawa; Yuichi Komori; Misao Nagayama (J. Symb. Log., 2000)

Eliminating Useless Parts in Semi-structured Documents Using Alternation Counts. - Daisuke Ikeda; Yasuhiro Yamada; Sachio Hirokawa (Discovery Science, 2001)

SCOOP: A Record Extractor without Knowledge on Input. - Yasuhiro Yamada; Daisuke Ikeda; Sachio Hirokawa (Discovery Science, 2001)

Generation of Navigation Script from Log and Link. - Kengo Nishino; Daisuke Nagano; Sachio Hirokawa (WebNet, 2001)

Parallel Reduction in Type Free lambda/mu-Calculus. - Kensuke Baba; Sachio Hirokawa; Ken-etsu Fujita (CATS, 2001)

Automatic Wrapper Generation for Multilingual Web Resources. - Yasuhiro Yamada; Daisuke Ikeda; Sachio Hirokawa (Discovery Science, 2002)

Visualization and Analysis of Web Graphs. - Sachio Hirokawa; Daisuke Ikeda (Progress in Discovery Science, 2002)

Semi-Automatic Construction of Metadata from a Series of Web Documents. - Sachio Hirokawa; Eisuke Itoh; Tetsuhiro Miyahara (Australian Conference on Artificial Intelligence, 2003)

Expressive Power of Tree and String Based Wrappers. - Daisuke Ikeda; Yasuhiro Yamada; Sachio Hirokawa (IIWeb, 2003)

Extraction of Tag Tree Patterns with Contractible Variables from Irregular Semistructured Data. - Tetsuhiro Miyahara; Yusuke Suzuki; Takayoshi Shoudai; Tomoyuki Uchida; Sachio Hirokawa; Kenichi Takahashi; Hiroaki Ueda (PAKDD, 2003)

An Efficient Mapping for Score of String Matching. - Tetsuya Nakatoh; Kensuke Baba; Daisuke Ikeda; Yasuhiro Yamada; Sachio Hirokawa (Stringology, 2003)

Testbed for information extraction from deep web. - Yasuhiro Yamada; Nick Craswell; Tetsuya Nakatoh; Sachio Hirokawa (WWW (Alternate Track Papers & Posters), 2004)

An Approach to Analyzing Correlation between Songs/Artists Using iTMS Playlists. - Yufeng Dou; Eisuke Itoh; Sachio Hirokawa; Daisuke Ikeda (CIMCA/IAWTIC, 2005)

An Efficient Mapping for Computing the Score of String Matching. - Tetsuya Nakatoh; Kensuke Baba; Daisuke Ikeda; Yasuhiro Yamada; Sachio Hirokawa (J. Autom. Lang. Comb., 2005)

Functional Composition of Web Databases. - Masao Mori; Tetsuya Nakatoh; Sachio Hirokawa (ICADL, 2006)

Multiple Viewed Search Engine for an e-Journal - A Case Study on Zoological Science. - Takahiro Seki; Taiki Wada; Yasuhiro Yamada; Nozomi Ytow; Sachio Hirokawa (HCI (4), 2007)

Links and Cycles of Web Databases. - Masao Mori; Tetsuya Nakatoh; Sachio Hirokawa (SWAP, 2007)

Dynamic Thesaurus Construction from English-Japanese Dictionary. - Yoshihiro Shimoji; Taiki Wada; Sachio Hirokawa (CISIS, 2008)

Structural Analysis of R & D Division from Patent Documents. - Yurie Iino; Yasuhiro Yamada; Sachio Hirokawa (ICEBE, 2008)

Time Series Analysis of R&D Team Using Patent Information. - Yurie Iino; Sachio Hirokawa (KES (2), 2009)

Formal Concept Analysis of Medical Incident Reports. - Takahiro Baba; Lucing Liu; Sachio Hirokawa (KES (3), 2010)

A Progressive Data Warehouse of Institutional Research with Web API and Mashup Visualization. - Masao Mori; Toshie Tanaka; Sachio Hirokawa (CSEDU (2), 2011)

Component-based search engine for blogs. - Sachio Hirokawa; Chengjiu Yin; Tetsuya Nakatoh (FUZZ-IEEE, 2011)

Evaluation of Link System between Repository and Researcher Database. - Kensuke Baba; Toshie Tanaka; Emi Ishita; Masao Mori; Eisuke Ito; Sachio Hirokawa (ICADL, 2011)

Text mining of bankruptcy information using formal concept analysis. - Sachio Hirokawa; Takahiro Baba; Tetsuya Nakatoh (iCAST, 2011)

Visualization of tourism information using WordNet. - Tetsuya Nakatoh; Chengjiu Yin; Hiroki Matsuura; Sachio Hirokawa (iCAST, 2011)

Classification Network of tourism information A smart phone-based system for supporting "Petit Trips". - Chengjiu Yin; Eisuke Ito; Tetsuya Nakatoh; Sachio Hirokawa (iCAST, 2011)

Component search engine using tree-view interface for tourist blogs. - Jun Zeng 003; Sachio Hirokawa (iCAST, 2011)

A Support System for Research Trend Survey of Scientific Literature. - Chengjiu Yin; Yoshiyuki Tabata; Kiyota Hashimoto; Tetsuya Nakatoh; Sachio Hirokawa (ICCE, 2011)

Building a Search Engine for Scientific Projects Survey. - Chengjiu Yin; Yoshiyuki Tabata; Xiaobin Wu; Tetsuya Nakatoh; Sachio Hirokawa (iThings/CPSCom, 2011)

Finding Top-N Chance Patterns with KeyGraph $^{ tiny textregistered}$ -Based Importance. - Yoshiaki Okubo; Makoto Haraguchi; Sachio Hirokawa (KES (2), 2011)

Search and Analysis of Bankruptcy Cause by Classification Network. - Sachio Hirokawa; Takahiro Baba; Tetsuya Nakatoh (MEDI, 2011)

Feature Extraction Using Restricted Bootstrapping. - Sachio Hirokawa (ACIS-ICIS, 2012)

Descriminant Words for Problems in Scientific Articles. - Toshihiko Sakai; Jun Zeng 003; Brendan Flanagan; Tetsuya Nakatoh; Sachio Hirokawa (ACIS-ICIS, 2012)

Extraction of relevant components using shallow structure of HTML documents. - Jun Zeng 003; Brendan Flanagan; Toshihiko Sakai; Sachio Hirokawa (FSKD, 2012)

Introducing faceted views in diversity of online novels. - Eisuke Ito; Sachio Hirokawa; Kazunori Shimizu (ICDIM, 2012)

A "Milky Way Research Trend" System for Survey of Scientific Literature. - Chengjiu Yin; Yoshiyuki Tabata; Sachio Hirokawa (ICWL Workshops, 2012)

Extraction of Tourist Behavior Contexts from Blog by Verbs and Their Objects. - Tetsuya Nakatoh; Sachio Hirokawa (IIAI-AAI, 2012)

Near Friends Communication Encouragement System Using NFC and SNS. - Hiroaki Ninomiya; Eisuke Ito; Brendan Flanagan; Sachio Hirokawa (IIAI-AAI, 2012)

Search Engine Focused on Multiple Features of Scientific Articles. - Toshihiko Sakai; Brendan Flanagan; Jun Zeng 003; Tetsuya Nakatoh; Sachio Hirokawa (IIAI-AAI, 2012)

Mistake Discovery and Generation of Exercises Automaticity in Context. - Chengjiu Yin; Sachio Hirokawa; Brendan Flanagan; Takahiko Suzuki; Yoshiyuki Tabata (IIAI-AAI, 2012)

Extraction of Relevant Snippets from Web Pages Using Hybrid Features. - Jun Zeng 003; Qingyu Xiong; Junhao Wen 001; Sachio Hirokawa (IIAI-AAI, 2012)

Feature words that classify problem sentence in scientific article. - Toshihiko Sakai; Sachio Hirokawa (iiWAS, 2012)

Extraction of Hints and Advice from Hotel Reviews for Improving Small Hotel Management. - Sachio Hirokawa; Makoto Okada; Kiyota Hashimoto (CEC, 2012)

Extraction of Feature Words with the Same Generality Level as Query using Restricted Bootstrapping. - Jun Zeng 003; Toshihiko Sakai; Brendan Flanagan; Sachio Hirokawa (CEC, 2012)

Analysing Research Trends of Mobile Learning with the Milky Way. - Brendan Flanagan; Chengjiu Yin; Sachio Hirokawa; Han-Yu Sung; Gwo-Jen Hwang (WMUTE, 2012)

A investigation of opinions and demands of new farming applicants of Japan using concept graph in the questionnaire survey. - Makoto Okada; Sachio Hirokawa; Kiyota Hashimoto (ICIS, 2013)

Layout-tree-based approach for identifying visually similar blocks in a web page. - Jun Zeng 003; Brendan Flanagan; Sachio Hirokawa (ICIS, 2013)

A Private Cloud Environment for Teaching Search Engine Construction. - Eisuke Ito; Brendan Flanagan; Chengjiu Yin; Tetsuya Nakatoh; Sachio Hirokawa (ICCE, 2013)

An SNS-based Literature Review System for conducting a Research Survey. - Chengjiu Yin; Jane Yin-Kim Yau; Sachio Hirokawa; Yoshiyuki Tabata (ICCE, 2013)

Automated Evaluation of Student Comments on Their Learning Behavior. - Kazumasa Goda; Sachio Hirokawa; Tsunenori Mine (ICWL, 2013)

Keywords Frequency Trend Analysis of Online Novels. - Eisuke Ito; Takahiro Urakawa; Brendan Flanagan; Sachio Hirokawa (IIAI-AAI, 2013)

Prediction of Growth Rate of Operating Income Using Securities Reports. - Tetsuya Nakatoh; Hirofumi Amano; Sachio Hirokawa (IIAI-AAI, 2013)

Evaluation of Tourism Resources Extraction Based on Japanese Dependency Analysis. - Tetsuya Nakatoh; Sachio Hirokawa (IIAI-AAI, 2013)

Proposal of a Matching System for Companies and Researchers Using Patents and Scientific Papers. - Yasuhiro Yamada; Terutaka Tansho; Sachio Hirokawa (IIAI-AAI, 2013)

Build a Search Engine to Support Doing Research Surveys on SNS. - Chengjiu Yin; Brendan Flanagan; Sachio Hirokawa; Yoshiyuki Tabata (IIAI-AAI, 2013)

Proposal of Seam Degree and Content Similarity for Web Page Segmentation. - Jun Zeng 003; Brendan Flanagan; Qingyu Xiong; Junhao Wen 001; Sachio Hirokawa (IIAI-AAI, 2013)

Intelligent Computer Classification of English Writing Errors. - Brendan Flanagan; Chengjiu Yin; Takahiko Suzuki; Sachio Hirokawa (IIMSS, 2013)

Analysis of Opinions from Questionnaire Surveys of Farming Candidates using Cross Tabulation System. - Makoto Okada; Sachio Hirokawa; Kiyota Hashimoto (IIMSS, 2013)

Shifting Concepts to Their Associative Concepts via Bridges. - Hongjie Zhai; Makoto Haraguchi; Yoshiaki Okubo; Kiyota Hashimoto; Sachio Hirokawa (MLDM, 2013)

Correlation of grade prediction performance and validity of self-evaluation comments. - Kazumasa Goda; Sachio Hirokawa; Tsunenori Mine (SIGITE Conference, 2013)

Automatic generation of tourism quiz using blogs. - Jun Zeng 003; Toshihiko Sakai; Chengjiu Yin; Takahiko Suzuki; Sachio Hirokawa (Artif. Life Robotics, 2013)

Learning by Searching: A Learning Environment that Provides Searching and Analysis Facilities for Supporting Trend Analysis Activities. - Chengjiu Yin; Han-Yu Sung; Gwo-Jen Hwang; Sachio Hirokawa; Hui-Chun Chu; Brendan Flanagan; Yoshiyuki Tabata (J. Educ. Technol. Soc., 2013)

An Automated Method to Generate e-Learning Quizzes from Online Language Learner Writing. - Brendan Flanagan; Chengjiu Yin; Sachio Hirokawa; Kiyota Hashimoto; Yoshiyuki Tabata (Int. J. Distance Educ. Technol., 2013)

Research Trends with Cross Tabulation Search Engine. - Chengjiu Yin; Sachio Hirokawa; Jane Yin-Kim Yau; Kiyota Hashimoto; Yoshiyuki Tabata; Tetsuya Nakatoh (Int. J. Distance Educ. Technol., 2013)

Chinese tag analysis for foreign movie contents. - Xiao Lin; Eisuke Ito; Sachio Hirokawa (ICIS, 2014)

Efficiency of LSA and K-means in Predicting Students' Academic Performance Based on Their Comments Data. - Shaymaa E. Sorour; Tsunenori Mine; Kazumasa Goda; Sachio Hirokawa (CSEDU (1), 2014)

Predicting students' grades based on free style comments data by artificial neural network. - Shaymaa E. Sorour; Tsunenori Mine; Kazumasa Goda; Sachio Hirokawa (FIE, 2014)

Learning Winespeak from Mind Map of Wine Blogs. - Sachio Hirokawa; Brendan Flanagan; Takahiko Suzuki; Chengjiu Yin (HCI (13), 2014)

Real-time Feedback Systems in a Foreign Language Teaching: A Case of Presentation Course. - Yuichi Ono; Manabu Ishihara; Sachio Hirokawa; Mitsuo Yamashiro (ICCE, 2014)

Learning by "Search & Log". - Chengjiu Yin; Brendan Flanagan; Sachio Hirokawa (ICCE, 2014)

Prediction of Students' Grades Based on Free-Style Comments Data. - Shaymaa E. Sorour; Tsunenori Mine; Kazumasa Goda; Sachio Hirokawa (ICWL, 2014)

Classification and Clustering English Writing Errors Based on Native Language. - Brendan Flanagan; Chengjiu Yin; Takahiko Suzuki; Sachio Hirokawa (IIAI-AAI, 2014)

Detection of Misplacement of Synonyms in the Japanese WordNet. - Takuya Hirao; Takahiko Suzuki; Koki Miyata; Sachio Hirokawa (IIAI-AAI, 2014)

Discovery of Implicit Feature Words of Place Name. - Sachio Hirokawa; Tetsuya Nakatoh; Hiroto Nakae; Takahiro Suzuki (IIAI-AAI, 2014)

Implementation and Evaluation of Real Time Qualitative Feedback Systems in a Foreign Language Presentation Course. - Yuichi Ono; Manabu Ishihara; Sachio Hirokawa; Mitsuo Yamashiro (IIAI-AAI, 2014)

Comments Data Mining for Evaluating Student's Performance. - Shaymaa E. Sorour; Tsunenori Mine; Kazumasa Goda; Sachio Hirokawa (IIAI-AAI, 2014)

Construction of Dominant Factor Presumption Model for Postoperative Hospital Days from Operation Records. - Takanori Yamashita; Yoshifumi Wakata; Satoshi Hamai; Yasuharu Nakashima; Yukihide Iwamoto; Brendan Flanagan; Naoki Nakashima; Sachio Hirokawa (IIAI-AAI, 2014)

A Hybrid Trust Degree Model in Social Network for Recommender System. - Jun Zeng 003; Min Gao 001; Junhao Wen 001; Sachio Hirokawa (IIAI-AAI, 2014)

Non-Topical Classification of Healthcare Information on the Web. - Sachio Hirokawa; Emi Ishita (IDT/IIMSS/STET, 2014)

Real time text-based feedback systems from frequency-based feedback to mindmap feedback in foreign language teaching. - Yuichi Ono; Sachio Hirokawa; Manabu Ishihara; Mitsuo Yamashiro (SMC, 2014)

A Web Page Segmentation Approach Using Visual Semantics. - Jun Zeng 003; Brendan Flanagan; Sachio Hirokawa; Eisuke Ito (IEICE Trans. Inf. Syst., 2014)

Classification of English language learner writing errors using a parallel corpus with SVM. - Brendan Flanagan; Chengjiu Yin; Takahiko Suzuki; Sachio Hirokawa (Int. J. Knowl. Web Intell., 2014)

Predicting and Visualizing Wine Characteristics Through Analysis of Tasting Notes from Viewpoints. - Brendan Flanagan; Nao Wariishi; Takahiko Suzuki; Sachio Hirokawa (HCI (27), 2015)

Prediction of Learner Native Language by Writing Error Pattern. - Brendan Flanagan; Chengjiu Yin; Takahiko Suzuki; Sachio Hirokawa (HCI (24), 2015)

Visualization of e-Book Learning Logs. - Sachio Hirokawa; Chengjiu Yin; Jingyun Wang; Misato Oi; Hiroaki Ogata (ICCE, 2015)

Identifying and Analyzing the Learning Behaviors of Students using e-Books. - Chengjiu Yin; Fumiya Okubo; Atsushi Shimada 001; Misato Oi; Sachio Hirokawa; Hiroaki Ogata (ICCE, 2015)

Analyzing the Features of Learning Behaviors of Students using e-Books. - Chengjiu Yin; Fumiya Okubo; Atsushi Shimada 001; Misato Oi; Sachio Hirokawa; Masanori Yamada; Kentaro Kojima; Hiroaki Ogata (ICCE, 2015)

Correlation between an Entropy Based Measure and English Language Learner Proficiency. - Brendan Flanagan; Sachio Hirokawa (IIAI-AAI, 2015)

Vector Similarity of Related Words in the Japanese Word Net. - Takuya Hirao; Nao Wariishi; Takahiko Suzuki; Sachio Hirokawa (IIAI-AAI, 2015)

Focused Citation Count: A Combined Measure of Relevancy and Quality. - Tetsuya Nakatoh; Hayato Nakanishi; Kensuke Baba; Sachio Hirokawa (IIAI-AAI, 2015)

Sentiment Analysis of Wine Aroma. - Nao Wariishi; Brendan Flanagan; Takahiko Suzuki; Sachio Hirokawa (IIAI-AAI, 2015)

Unique Links as Weak Ties. - Yasuhiro Yamada; Daisuke Ikeda; Sachio Hirokawa (IIAI-AAI, 2015)

Visualization of Key Factor Relation in Clinical Pathway. - Takanori Yamashita; Brendan Flanagan; Yoshifumi Wakata; Satoshi Hamai; Yasuharu Nakashima; Yukihide Iwamoto; Naoki Nakashima; Sachio Hirokawa (KES, 2015)

Journal Impact Factor Revised with Focused View. - Tetsuya Nakatoh; Hayato Nakanishi; Sachio Hirokawa (KES-IDT, 2015)

Temporal Relation Extraction in Outcome Variances of Clinical Pathways. - Takanori Yamashita; Yoshifumi Wakata; Satoshi Hamai; Yasuharu Nakashima; Yukihide Iwamoto; Brendan Flanagan; Naoki Nakashima; Sachio Hirokawa (MedInfo, 2015)

Power Law and Entropy. - Sachio Hirokawa; Eisuke Ito (CoRR, 2015)

Dynamic Macro-Based Heuristic Planning through Action Relationship Analysis. - Zhuo Jiang; Junhao Wen 001; Jun Zeng 003; Yihao Zhang 002; Xibin Wang; Sachio Hirokawa (IEICE Trans. Inf. Syst., 2015)

A Predictive Model to Evaluate Student Performance. - Shaymaa E. Sorour; Tsunenori Mine; Kazumasa Goda; Sachio Hirokawa (J. Inf. Process., 2015)

Discovery of Implicit Feature Words of Place Name. - Sachio Hirokawa; Tetsuya Nakatoh; Hiroto Nakae; Takahiro Suzuki (Tourism Informatics, 2015)

Extraction of Tourism Objects from Blogs. - Tetsuya Nakatoh; Sachio Hirokawa (Tourism Informatics, 2015)

Prediction of Key Patient Outcome from Sentence and Word of Medical Text Records. - Takanori Yamashita; Yoshifumi Wakata; Hidehisa Soejima; Naoki Nakashima; Sachio Hirokawa (ClinicalNLP@COLING 2016, 2016)

Support Vector Mind Map of Wine Speak. - Brendan Flanagan; Sachio Hirokawa (HCI (4), 2016)

A Visual Citation Search Engine. - Tetsuya Nakatoh; Hayato Nakanishi; Toshiro Minami; Kensuke Baba; Sachio Hirokawa (HCI (4), 2016)

Student Behavior in Computer Simulation Practices by Pair Programming and Flip Teaching. - Satoshi Suzuki; Sachio Hirokawa; Shinji Mukoyama; Ryo Uehara; Hiroyuki Ogata (ICCE, 2016)

Measuring & Evaluating Digital Textbooks through Quizzes. - Chengjiu Yin; Jane Yin-Kim Yau; Noriko Uosaki; Sachio Hirokawa; Etsuko Kumamoto (ICCE, 2016)

Classification of Speaking Proficiency Level by Machine Learning and Feature Selection. - Brendan Flanagan; Sachio Hirokawa; Emiko Kaneko; Emi Izumi (SETE@ICWL, 2016)

Automatic Extraction and Prediction of Word Order Errors from Language Learning SNS. - Brendan Flanagan; Sachio Hirokawa (IIAI-AAI, 2016)

Feature Words of Moves in Scientific Abstracts. - Kiyota Hashimoto; Tasanawan Soonklang; Sachio Hirokawa (IIAI-AAI, 2016)

Bibliometric Search with Focused Citation Ratios. - Tetsuya Nakatoh; Hayato Nakanishi; Toshiro Minami; Kensuke Baba; Sachio Hirokawa (IIAI-AAI, 2016)

A Restaurant Recommender System Based on User Preference and Location in Mobile Environment. - Jun Zeng 003; Feng Li 038; Haiyang Liu; Junhao Wen 001; Sachio Hirokawa (IIAI-AAI, 2016)

Standard measure and SVM measure for feature selection and their performance effect for text classification. - Yusuke Adachi; Naoya Onimura; Takanori Yamashita; Sachio Hirokawa (iiWAS, 2016)

Difficulty of words and their ambiguity estimated from the result of word sense disambiguation. - Takahiko Suzuki; Koki Miyata; Sachio Hirokawa (KICSS, 2016)

Learning Activity Features of High Performance Students. - Fumiya Okubo; Sachio Hirokawa; Misato Oi; Chengjiu Yin; Atsushi Shimada 001; Kentaro Kojima; Masanori Yamada; Hiroaki Ogata (CrossLAK, 2016)

Shilling Attack Detection in Recommender Systems via Selecting Patterns Analysis. - Wentao Li 001; Min Gao 001; Hua Li; Jun Zeng 003; Qingyu Xiong; Sachio Hirokawa (IEICE Trans. Inf. Syst., 2016)

Automated Duplicate Bug Report Detection Using Multi-Factor Analysis. - Jie Zou; Ling Xu; Mengning Yang; Xiaohong Zhang 002; Jun Zeng 003; Sachio Hirokawa (IEICE Trans. Inf. Syst., 2016)

Analysis of the Quality of Academic Papers by the Words in Abstracts. - Tetsuya Nakatoh; Kenta Nagatani; Toshiro Minami; Sachio Hirokawa; Takeshi Nanri; Miho Funamori (HCI (4), 2017)

Classification of Imbalanced Documents by Feature Selection. - Yusuke Adachi; Naoya Onimura; Takanori Yamashita; Sachio Hirokawa (ICCDA, 2017)

Predicting Learning Result of Learner in E-learning Course with Feature Selection Using SVM. - Yuki Kitanaka; Kazuhiro Takeuchi; Sachio Hirokawa (ICETC, 2017)

Finding Key Integer Values in Many Features for Learners' Academic Performance Prediction. - Yudai Tanabe; Koki Kagari; Yuki Kitanaka; Kazuhiro Takeuchi; Sachio Hirokawa (ICETC, 2017)

A Multi-model SVR Approach to Estimating the CEFR Proficiency Level of Grammar Item Features. - Brendan Flanagan; Sachio Hirokawa; Emiko Kaneko; Emi Izumi; Hiroaki Ogata (IIAI-AAI, 2017)

Who is the Last Author of Your Paper? - Kumiko Kanekawa; Tetsuya Nakatoh; Takahiko Suzuki; Sachio Hirokawa (IIAI-AAI, 2017)

An Analysis of Characteristics of Student-Athletes from Questionnaire by SVM. - Toru Sugihara; Soichiro Aihara; Sachio Hirokawa; Takashi Nara (IIAI-AAI, 2017)

A Point-of-Interest Recommendation Method Using Location Similarity. - Jun Zeng 003; Yinghua Li; Feng Li 038; Junhao Wen 001; Sachio Hirokawa (IIAI-AAI, 2017)

Cluster analysis of scientific citation context. - Tetsuya Nakatoh; Kenta Nagatani; Kumiko Kanekawa; Takahiro Suzuki; Sachio Hirokawa (iiWAS, 2017)

Graph Clustering System for Text-Based Records in a Clinical Pathway. - Takanori Yamashita; Naoya Onimura; Hidehisa Soejima; Naoki Nakashima; Sachio Hirokawa (MedInfo, 2017)

Machine learning is better than human to satisfy decision by majority. - Sachio Hirokawa; Takahiko Suzuki; Tsunenori Mine (WI, 2017)

Personalized Movie Recommendation System Based on Support Vector Machine and Improved Particle Swarm Optimization. - Xibin Wang; Fengji Luo; Chun-Yan Sang; Jun Zeng 003; Sachio Hirokawa (IEICE Trans. Inf. Syst., 2017)

LTDE: A Layout Tree Based Approach for Deep Page Data Extraction. - Jun Zeng 003; Feng Li 038; Brendan Flanagan; Sachio Hirokawa (IEICE Trans. Inf. Syst., 2017)

Good Students Look Back Previous Pages. - Sachio Hirokawa (ICCE, 2018)

Key attribute for predicting student academic performance. - Sachio Hirokawa (ICETC, 2018)

Quality Assurance in Education through the Diploma Policy and President's Message - An Analysis Focused on Local Community. - Kahori Ogashiwa; Toru Sugihara; Kumiko Kanekawa; Yuki Kitanaka; Kazuhisa Noguchi; Soichiro Aihara; Masao Mori; Sachio Hirokawa (IIAI-AAI, 2018)

Identification of Unnatural Subsets in Statistical Data. - Takahiko Suzuki; Tssukasa Kamimasu; Tetsuya Nakatoh; Sachio Hirokawa (IIAI-AAI, 2018)

Automated Evaluation of Students Comments Regarding Correct Concepts and Misconceptions of Convex Lenses. - Masaru Taga; Toshihiro Onishi; Sachio Hirokawa (IIAI-AAI, 2018)

User Behavior Analysis of Location-Based Social Network. - Jun Zeng 003; Xin He; Yingbo Wu; Sachio Hirokawa (IIAI-AAI, 2018)

Is SVM+FS Better to Satisfy Decision by Majority? - Yao Lin; Kohei Yamaguchi; Tsunenori Mine; Sachio Hirokawa (SCDM, 2018)

Attribute-based quality classification of academic papers. - Tetsuya Nakatoh; Sachio Hirokawa; Toshiro Minami; Takeshi Nanri; Miho Funamori (Artif. Life Robotics, 2018)

An Automatic Method to Extract Online Foreign Language Learner Writing Error Characteristics. - Brendan Flanagan; Sachio Hirokawa (Int. J. Distance Educ. Technol., 2018)

Evaluation Index to Find Relevant Papers: Improvement of Focused Citation Count. - Tetsuya Nakatoh; Sachio Hirokawa (HCI (4), 2019)

Does Crime Activity Report Reveal Regional Characteristics? - Tsunenori Mine; Sachio Hirokawa; Takahiko Suzuki (IMCOM, 2019)

Quantitive Analysis of Important Attributes to Attract International Conventions. - Hidekazu Iwamoto; Tokuro Matsuo; Yasushi Sugiyama; Sachio Hirokawa (IIAI-AAI, 2019)

Machine Learning and Visualization of Sudden Braking using Probe Data. - Takuya Kawatani; Eisuke Itoh; Sachio Hirokawa; Tsunenori Mine (IIAI-AAI, 2019)

Text Mining and Logic Model for University Midterm Plans. - Kahori Ogashiwa; Eiichi Takata; Tetsuya Oishi; Masao Mori; Sachio Hirokawa (IIAI-AAI, 2019)

Significance of Low-Frequent Words in Concept Describing Document. - Yuki Okumura; Sachio Hirokawa; Kazuhiro Takeuchi (IIAI-AAI, 2019)

Extracting Irregular Datasets in University Admission Statistics using Text Mining and Benford's Law. - Yusuke Tozaki; Takahiko Suzuki; Tsunenori Mine; Sachio Hirokawa (IIAI-AAI, 2019)

Predict the Next Location From Trajectory Based on Spatiotemporal Sequence. - Jun Zeng 003; Haoran Tang; Yingbo Wu; Ling Liu 001; Sachio Hirokawa (IIAI-AAI, 2019)

Location does not always determine sudden braking. - Takuya Kawatani; Eisuke Itoh; Sachio Hirokawa; Tsunenori Mine (ITSC, 2019)

Ties Between Mined Structural Patterns in Program and Their Identifier Names. - Yoshiki Mashima; Sachio Hirokawa; Kazuhiro Takeuchi (IUKM, 2019)

Prediction of Category of Scientific Article by Graph Convolution. - Sachio Hirokawa; Takahiko Suzuki; Tetsuya Nakatoh (IIAI-AAI, 2020)

A Preliminary Study on the Medium-term Plan of Public Universities Transferred from Private Universities. - Soichiro Aihara; Toru Sugihara; Kahori Ogashiwa; Kumiko Kanekawa; Masao Mori; Sachio Hirokawa (IIAI-AAI-Winter, 2021)