A study on knowledge discovery based on data compression

2010 Fiscal Year Final Research Report

• Project/Area Number: 20300052
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Intelligent informatics
• Research Institution: Tohoku University
• Principal Investigator: SHINOHARA Ayumi 東北大学, 大学院・情報科学研究科, 教授 (00226151)
• Project Period (FY): 2008 – 2010
• Keywords: 知識発見とデータマイニング / データ圧縮 / 機械学習 / 人工知能 / アルゴリズム

Research Abstract

We studied various topics concerning with data compression and knowledge discovery, from both theoretical and practical points of view. We proposed a new similarity measure based on lossy compression, and analyzed its properties. We made several contributions on compressed string processing, combinatorial properties on the number of runs in strings, formal language theory, multi-agent system, computational learning theory, game analysis, and practical applications.

Research Products

• [Journal Article] An Efficient Algorithm to Test Square-Freeness of Strings Compressed by Balanced Straight Line Programs (2010)
  • Author(s): W. Matsubara, S. Inenaga, A. Shinohara
  • Journal Title: Chicago Journal of Theoretical Computer Science Volume: 7 Pages: 1-19
  • Peer Reviewed
• [Journal Article] Average Value of Sum of Exponents of Runs in a String (2009)
  • Author(s): K. Kusano, W. Matsubara, A. Ishino, A. Shinohara
  • Journal Title: International Journal of Foundations of Computer Science Volume: Vol.20 Pages: 1135-1146
  • Peer Reviewed
• [Journal Article] Development of an interactive augmented environment and its application to autonomous learning for quadruped robots (2009)
  • Author(s): H. Kobayashi, T. Osaki, T. Okuyama, J. Gramm, A. Ishino, A. Shinohara
  • Journal Title: IEICE Transactions on Information on Information and systems Volume: E92-D(9) Pages: 1752-1761
  • Peer Reviewed
• [Journal Article] Efficient algorithms to compute compressed longest common substrings and compressed palindrome (2009)
  • Author(s): W. Matsubara, S. Inenaga, A. Ishino, A. Shinohara, T. Nakamura, K. Hashimoto
  • Journal Title: Theoretical Computer Science Volume: 410 Pages: 900-913
  • Peer Reviewed
• [Journal Article] 間引き:ロボットのスキル発見における評価の削減手法 (2009)
  • Author(s): 小林隼人, 畑埜晃平, 石野明, 篠原歩
  • Journal Title: 人工知能学会論文誌 Volume: Vol.24, No.1 Pages: 191-202
  • Peer Reviewed
• [Presentation] Inferring strings from runs (2010)
  • Author(s): W. Matsubara, A. Ishino, A. Shinohara
  • Organizer: The Prague Stringology Conference 2010
  • Place of Presentation: プラハ(チェコ)
  • Year and Date: 2010-09-10
• [Presentation] Average Number of Runs and Squares in Necklace (2010)
  • Author(s): K. Kusano, A. Shinohara
  • Organizer: The Prague Stringology Conference 2010
  • Place of Presentation: プラハ(チェコ)
  • Year and Date: 2010-09-10
• [Presentation] Multi-Target Adaptive A* (2010)
  • Author(s): K. Matsuta, H. Kobayashi, A. Shinohara
  • Organizer: The 9th International Conference on Autonomous Agents and Multi-Agent Systems
  • Place of Presentation: トロント(カナダ)
  • Year and Date: 2010-05-13
• [Presentation] The Size of Message Set Needed for the Optimal Communication Policy (2009)
  • Author(s): T. Kasai, H. Kobayashi, A. Shinohara
  • Organizer: The 7th European Workshop on Multi-Agent Systems
  • Place of Presentation: アイアナパ(キプロス)
  • Year and Date: 2009-12-18
• [Presentation] Complexity of Teaching by a Restricted Number of Examples (2009)
  • Author(s): H. Kobayashi, A. Shinohara
  • Organizer: The 22nd Annual Conference on Learning Theory
  • Place of Presentation: モントリオール(カナダ)
  • Year and Date: 2009-08-31
• [Presentation] Improvement of the Performance by using Received Message on Learning of Communication Codes (2009)
  • Author(s): T. Kasai, H. Kobayashi, A. Shinohara
  • Organizer: 8th International Conference on Autonomous Agents and Multi-Agent Systems
  • Place of Presentation: ブダペスト(ハンガリー)
  • Year and Date: 2009-05-15
• [Presentation] A Series of Run-rich strings (2009)
  • Author(s): W. Matsubara, K. Kusano, H. Bannai, A. Shinohara
  • Organizer: The 3rd International Conference on Language and Automata Theory and Applications
  • Place of Presentation: タラゴナ(スペイン)
  • Year and Date: 2009-04-07
• [Presentation] Testing Square-Freeness of Strings Compressed by Balanced Straight Line Program (2009)
  • Author(s): W. Matsubara, S. Inenaga, A. Shinohara
  • Organizer: 15th Computing : The Australasian Theory Symposium
  • Place of Presentation: オークランド(ニュージーランド)
  • Year and Date: 2009-01-20
• [Presentation] Average Value of Sum of Exponents of Runs in Strings (2008)
  • Author(s): K. Kusano, W. Matsubara, A. Ishino, A. Shinohara
  • Organizer: The Prague Stringology Conference 2008
  • Place of Presentation: プラハ(チェコ)
  • Year and Date: 2008-09-03
• [Presentation] New Lower Bounds for the Maximum Number of Runs in a String (2008)
  • Author(s): W. Matsubara, K. Kusano, H. Bannai, A. Ishino, A. Shinohara
  • Organizer: The Prague Stringology Conference 2008
  • Place of Presentation: プラハ(チェコ)
  • Year and Date: 2008-09-02