Department of Information Technology

As of March 2018

Human Centric Information Processing Laboratory

(URL:http://site330980-8020-5442.strikingly.com/)

Masanobu ABE, Professor

Sunao HARA, Assistant Professor

Research Themes:

  • Speech Signal Processing
  • Spoken Dialog System
  • Life Log Processing

Representative Publication :

  • Kei Tanaka, Sunao Hara, Masanobu Abe, Masaaki Sato and Shogo Minagi, “Speaker Dependent Approach for Enhancing a Glossectomy Patient’s Speech via GMM-based Voice Conversion,” Interspeech 2017, pp. 3384–3388, August 2017.
  • Sunao Hara, Asako Hatakeyama, Shota Kobayashi and Masanobu Abe, “Sound sensing using smartphones as a crowdsourcing approach,” APSIPA Annual Summit and Conference 2017, FA-02.2, 6 pages, December 2017.

Statistical Information Processing Laboratory

(URL:http://www.sc.cs.okayama-u.ac.jp/index_e.htm)

Toshiaki AIDA, Senior Assistant Professor

Research Themes:

  • Bayesian Statistical Inference
  • Compressed Sensing
  • Nonparametric Statistical Inference

Representative Publication :

  • Toshiaki Aida, “Compressed Sensing for Phase Unwrapping of Interferometric SAR Data,” Proceedings of 2017 17th International Conference on Control, Automation and Systems (ICCAS2017), pp. 989-993, October 2017

Combinatorial Algorithm Laboratory

(URL:https://researchmap.jp/
read0046679/?lang=english)

Shuji JIMBO, Senior Assistant Professor

Research Themes:

  • Algorithms and Computational Complexity on Graphs
  • The Eulerian Recurrent Lengths of Graphs
  • Primality Testing Based on Pseudosquares
  • Design of Expanding Graphs

Representative Publication :

  • Shuji Jimbo, “The NP-Completeness of Eulerian Recurrent Length for 4-Regular Eulerian Graphs,” Proceedings of 2014 4th International Conference on Artificial Intelligence with Applications in Engineering and Technology (ICAIET), pp. 155-159, December 2014.

System Software Laboratory

(URL:http://www.swlab.cs.okayama-u.ac.jp/lab/tani/index.html)

Hideo TANIGUCHI, Professor

Masaya SATO, Assistant Professor

Research Themes:

  • Tender Operating System
  • AnT Operating System
  • Mechanism for Regulating Program Execution Speed
  • Mechanism of Exchanging Parts of Programs During Execution
  • Virtual Machine Security

Representative Publication :

  • Toshihiro Yamauchi, Masahiro Tsuruya and Hideo Taniguchi, “Fast Control Method of Software-Managed TLB for Reducing Zero- Copy Communication Overhead,” IEICE Transactions on Information and Systems, Vol. E98-D, No.12, pp. 2187–2191, 2015.

Computer Architecture Laboratory

(URL:http://www.arc.cs.okayama-u.ac.jp/)

Akira NAGOYA, Professor

Nobuya WATANABE, Assistant Professor

Research Themes:

  • Hardware Design Automation
  • Dynamically Reconfigurable Hardware
  • High-Performance Processor Technology
  • Parallel Programming Languages and Systems

Representative Publication :

  • Nobuya Watanabe and Akira Nagoya, “FSL - A Sophisticated Hardware Description Language Inheriting Design Philosophy of SFL,” Conference Record of 2017 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2017), 1A-6, p. 8, August 2017.

Secure and Reliable Software Laboratory

Research Themes:

  • Operating System
  • System Software
  • System Security
  • Cyber Security

Representative Publication :

  • Toshihiro Yamauchi, Yuta Ikegami and Yuya Ban, “Mitigating Use-After-Free Attacks Using Memory-Reuse-Prohibited Library,” IEICE Transactions on Information and Systems, Vol. E100-D, No. 10, pp. 2295-2306, DOI: 10.1587/transinf.2016INP0020, October 2017
  • Shota Fujii, Masaya Sato, Toshihiro Yamauchi and Hideo Taniguchi, “Evaluation and Design of Function for Tracing Diffusion of Classified Information for File Operations with KVM,” The Journal of Supercomputing, Vol. 72, Issue 5, pp. 1841-1861, DOI: 10.1007/s11227-016-1671-5, February 2016.

Group Collaboration Laboratory

Research Themes:

  • Groupware Systems
  • Event Prediction
  • DevOps for System Software

Representative Publication :

  • Takuya Okada and Yoshinari Nomura, “Acquiring Application History for Successful Handover of Business Tasks,” Proceedings of 2015 18th International Conference on Network-Based Information Systems, pp. 458-463, September 2015.

Computer Vision Laboratory

(URL:http://www.chino.cs.okayama-u.ac.jp/)

Takeshi SHAKUNAGA, Professor

Tsuyoshi MIGITA, Assistant Professor

Research Themes:

  • Face Recognition/Modelling
  • Real-Time Object Tracking on Optical/Depth Images
  • Photometric Analysis for 3D Shape Reconstruction from Images

Representative Publication :

  • Yuki Oka and Takeshi Shakunaga, “Real-time Face Tracking and Recognition by Sparse Eigentracker Augmented by Associative Mapping to 3D Shape,” in Special Issue on “Best of Face and Gesture 2011”, Image and Vision Computing, Elsevier, Vol. 30, Issue 3, pp. 147-158, March 2012.

Computational Linguistics Laboratory

(URL:http://www.cl.cs.okayama-u.ac.jp/study/take_e/)

Koichi TAKEUCHI, Senior Assistant Professor

Research Themes:

  • Construction of Predicate-Argument Structure Thesaurus
  • Analysis of Semantic Roles and Frames
  • Terminology
  • Essay Scoring System

Representative Publication :

  • Masayuki Ohno, Koichi Takeuchi, Kota Motojin, Masahiro Taguchi, Yoshihiko Inada, Masaya Iizuka, Tatsuhiko Abo and Hitoshi Ueda, “Construction of Open Essay Writing Data and Automatic Essay Scoring System for Japanese,” Proceedings of The 15th International Conference of the Pacific Association for Computational Linguistics, pp. 215-220, August, 2017.

Web Informatics Laboratory

(URL:http://www.de.cs.okayama-u.ac.jp/~ohta/index.html)

Manabu OHTA, Professor

Hirotaka NIITSUMA, Assistant Professor

Research Themes:

  • Web Information Retrieval
  • Web Mining
  • Digital Library
  • Image Processing Algorithms
  • Combinatorial Optimization Using Neural Networks

Representative Publication :

  • Naomichi Kawakami, Manabu Ohta, Atsuhiro Takasu and Jun Adachi, “Cost Evaluation of CRF-Based Bibliography Extraction from Reference Strings,” Proceedings of 16th International Conference on Asia-Pacific Digital Libraries (ICADL 2014), LNCS 8839, pp. 268-278, November 2014.
  • Ryo Asakura, Hirotaka Niitsuma and Manabu Ohta, “Recurrent Neural Networks on Convoluted Word Vectors for Aspect-Based Sentiment Analysis,” Online Proceedings of 18th International Conference on Computational Linguistics and Intelligent Text Processing (CICLing 2017), 12 pages, April 2017.

Multimedia Information System Laboratory

Research Themes:

  • Spatial Query Processing
  • Research on Selective Contents Broadcasting
  • Research on P2P Streaming Systems
  • Research on Division Based Broadcasting Systems for Webcast
  • Behavior Analysis with Multi-Sensor Networks

Representative Publication :

  • Yusuke Gotoh and Chiori Okubo, “A Proposition of Querying Scheme with Network Voronoi Diagram in Bichromatic Reverse k-nearest Neighbor,” International Journal of Pervasive Computing and Communications (IJPCC), Vol. 13, Issue. 1, pp. 62-75, May 2017.

Information and Mathematical Engineering Laboratory

Research Themes:

  • Decentralized Computation in Multi-Agent Networks
  • Efficient Computational Methods for Nonnegative Matrix Factorization
  • Analysis and Design of Complex Networks
  • Efficient Learning Algorithms for Support Vector Machines
  • Stability Analysis of Nonlinear Dynamical Systems Related to Neural Networks

Representative Publication :

  • Kohnosuke Ogiwara, Tatsuya Fukami and Norikazu Takahashi, “Maximizing Algebraic Connectivity in the Space of Graphs with Fixed Number of Vertices and Edges,” IEEE Transactions on Control of Network Systems, Vol.4, No.2, pp.359-368, June 2017.

Software Measurement and Analytics Laboratory

(URL:http://analytics.jpn.org/index-e.html)

Akito MONDEN, Professor

Zeynep YUCEL, Assistant Professor

Research Themes:

  • Software Quality Analysis
  • Mining Software Repositories
  • Artificial Intelligence in Software Engineering
  • Software Security and Protection
  • Human Behavior Analysis

Representative Publication :

  • Akito Monden, Takuma Hayashi, Shoji Shinoda, Kumiko Shirai, Junichi Yoshida, Mike Barker and Kenichi Matsumoto, “Assessing the Cost Effectiveness of Fault Prediction in Acceptance Testing,” IEEE Transactions on Software Engineering, Vol. 39, No. 1, pp. 1345-1357, October 2013.
  • Zeynep Yücel, Albert Ali Salah, Çetin Meriçli, Tekin Meriçli, Roberto Valenti and Theo Gevers, “Joint Attention by Gaze Interpolation and Saliency,” IEEE Transactions on Cybernetics, Vol. 43, No. 3, pp. 829-842, June 2013.

Human Computer Interaction Laboratory

(URL:http://www.momo.cs.okayama-u.ac.jp/~sasakura/)

Department CHAIR, Professor

Mariko SASAKURA, Assistant Professor

Research Themes:

  • Natural User Interface
  • Rehabilitation System for Aphasic Persons
  • Information Visualization

Representative Publication :

  • Mariko Sasakura, Saori Iikuma and Yokihiro Izawa, “An Experience of Information Visualization and Interaction for Aphasic Persons,” Proceedings of 19th International Conference on Information Visualisation (IV15), pp. 553-556, 2015.