Hiroyuki Sakai

According to our database, Hiroyuki Sakai authored at least 26 papers between 2001 and 2020.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2020

What Do Good Integrated Reports Tell Us?: An Empirical Study of Japanese Companies Using Text-Mining.

Kei Nakagawa, Shingo Sashida, Ryozo Kitajima, Hiroyuki Sakai

Proceedings of the 9th International Congress on Advanced Applied Informatics, 2020

2019

Enriching folksonomy for online videos.

Hiroki Sakaji, Masaki Kohana, Akio Kobayashi, Hiroyuki Sakai

Int. J. Grid Util. Comput., 2019

Extraction of Characteristic Terms from Patent Documents for Technical Trend Analysis.

Kaito Takano, Miryu Tanaka, Hiroyuki Sakai, Ryozo Kitajima, Takahisa Ota, Chinatsu Tanabe, Hiroki Sakaji

Proceedings of the 8th International Congress on Advanced Applied Informatics, 2019

Relationship Between Management Policies and Profitability for Second Section-Listed Manufacturing Companies of the Tokyo Stock Exchange (2016 Results).

Ryozo Kitajima, Ryotaro Kamimura, Hiroyuki Sakai

Proceedings of the 8th International Congress on Advanced Applied Informatics, 2019

2018

Local Selective Learning for Interpreting Multi-Layered Neural Networks.

Ryotaro Kamimura, Ryozo Kitajima, Hiroyuki Sakai

Proceedings of the 2018 Joint 10th International Conference on Soft Computing and Intelligent Systems (SCIS) and 19th International Symposium on Advanced Intelligent Systems (ISIS), 2018

2017

Discovery of rare causal knowledge from financial statement summaries.

Hiroki Sakaji, Risa Murono, Hiroyuki Sakai, Jason Bennett, Kiyoshi Izumi

Proceedings of the 2017 IEEE Symposium Series on Computational Intelligence, 2017

Extraction of sentences concerning business performance forecast and economic forecast from summaries of financial statements by deep learning.

Shiori Kitamori, Hiroyuki Sakai, Hiroki Sakaji

Proceedings of the 2017 IEEE Symposium Series on Computational Intelligence, 2017

Extracting Laboratory Front Pages from University Websites.

Hiroki Sakaji, Atsuya Miyazaki, Hiroyuki Sakai, Kiyoshi Izumi

Proceedings of the Advances in Network-Based Information Systems, 2017

2016

Extraction of polarity comments from Nico Nico Douga.

Hiroki Sakaji, Junya Ishibuchi, Hiroyuki Sakai

Int. J. Space Based Situated Comput., 2016

Estimation of Tags via Comments on Nico Nico Douga.

Hiroki Sakaji, Masaki Kohana, Akio Kobayashi, Hiroyuki Sakai

Proceedings of the 19th International Conference on Network-Based Information Systems, 2016

2015

Extracting Polarity Comments from Nico Nico Douga.

Hiroki Sakaji, Junya Ishibuchi, Hiroyuki Sakai

Proceedings of the 18th International Conference on Network-Based Information Systems, 2015

2010

NTCIR-8 Patent Mining Task at Toyohashi University of Technology.

Yusuke Suzuki, Hirofumi Nonaka, Hiroki Sakaji, Akio Kobayashi, Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the 8th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, 2010

2009

Assigning Polarity to Causal Information in Financial Articles on Business Performance of Companies.

Hiroyuki Sakai, Shigeru Masuyama

IEICE Trans. Inf. Syst., 2009

2008

An Informative DOM Subtree Identification Method from Web Pages in Unfamiliar Web Sites.

Masanobu Tsuruta, Hiroyuki Sakai, Shigeru Masuyama

IEICE Trans. Inf. Syst., 2008

Cause Information Extraction from Financial Articles Concerning Business Performance.

Hiroyuki Sakai, Shigeru Masuyama

IEICE Trans. Inf. Syst., 2008

Polarity Assignment to Causal Information Extracted from Financial Articles Concerning Business Performance of Companies.

Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Research and Development in Intelligent Systems XXV, 2008

Automatic Extraction of Basis Expressions That Indicate Economic Trends.

Hiroki Sakaji, Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2008

2007

Extraction of Cause Information from Newspaper Articles Concerning Business Performance.

Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Artificial Intelligence and Innovations 2007: from Theory to Applications, 2007

2006

Knowledge acquisition about the deletion possibility of adnominal verb phrases.

Hiroyuki Sakai, Shigeru Masuyama

Syst. Comput. Jpn., 2006

2004

A Web Search Result Classification System Based on the Degree of Suitability for Specialists.

Masanobu Tsuruta, Yoshiyuki Umemura, Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, 2004

A Multiple-Document Summarization System Introducing User Interaction for Reflecting User's Summarization Need.

Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, 2004

Question Answering System QUARK.

Yasuo Nii, Keizo Kawata, Tatsumi Yoshida, Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, 2004

A Multiple-Document Summarization System with User Interaction.

Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the COLING 2004, 2004

2002

Unsupervised Acquisition of Knowledge about the Abbreviation Possibility of some of Multiple Phrases modifying the same Verb/Noun.

Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, 2002

QUARK: A Question and Answering System using Newspaper Corpus as a Knowledge Source.

Keizo Kawata, Hiroyuki Sakai, Shigeru Masuyama

Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, 2002

2001

On a Retrieval Support System by Suggesting Terms to a User.

Hiroyuki Sakai, Kiyonori Ohtake, Shigeru Masuyama

Proceedings of the Third Second Workshop Meeting on Evaluation of Chinese & Japanese Text Retrieval and Text Summarization, 2001