University of Fukui Researcher Information
Faculty of Engineering
Division of Engineering
Information Science
日本語
Update date：2025/04/28
Professor
IWATA Ken-ichi

University of Fukui Faculty of EngineeringDivision of Engineering Information Science Professor

Education

  1. 1993/03GraduatedWakayama University
  2. 1995/03CompletedJapan Advanced Institute of Science and TechnologyGraduate School, Division of Information ScienceMaster
  3. 1996/05Unfinished courseJapan Advanced Institute of Science and TechnologyGraduate School, Division of Information ScienceDoctor

Research History

  1. 1996/06-1998/03徳島大学工学部助手
  2. 1998/04-2001/03松山東雲女子大学文学部講師
  3. 2001/04-2006/07電気通信大学助手
  4. 2006/08-2007/03山形大学工学部助教授
  5. 2007/04-2008/03山形大学大学院理工学研究科准教授
  6. 2008/04-2024/03福井大学大学院工学研究科情報・メディア工学専攻准教授
  7. 2024/04福井大学大学院工学系部門工学領域情報・メディア工学講座教授

Research Areas

  1. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering)Communication and network engineering

Research Interests

  1. Information Theory, Source coding, Channel coding

Subject of Research

  1. 情報理論，情報源符号，通信路符号2008

Papers

  1. Optimal Codes in the Class of 2-bit Delay Decodable Codes2025/01Kengo Hashimoto, Ken-ichi IwataIn principle, the journal name should be the abbreviated journal name specified by the journal in which the article was published. If the journal name is in European language, the first letter of the word should be capitalized. The first letter of the first word should be capitalized, and the first letter of the second and subsequent words should be lower case.71/ 1, 797-83210.1109/TIT.2024.3503717URL
  2. Asymptotic Optimality of the Asymmetric Encoding-Decoding Scheme2024/11Hirosuke Yamamoto, Ken-ichi Iwata,Proceedings of 2024 International Symposium on Information Theory and Its Applications (ISITA2022)354-359
  3. Properties of Optimal k-bit Delay Decodable Alphabetic Codes2024/08Kengo Hashimoto, Ken-ichi IwataIEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences10.1587/transfun.2024TAP0013
  4. An Asymmetric Encoding-Decoding Scheme for Lossless Data Compression2024/07H. Yamamoto, K. IwataProceedings of 2024 International Symposium on Information Theory (ISIT2024)55-6010.1109/ISIT57864.2024.10619702URL
  5. AIFV Codes Allowing 2-bit Decoding Delays for Unequal Bit Cost2024/07K. Iwata, K. Hashimoto, T. Wakayama, H. YamamotoProceedings of 2024 International Symposium on Information Theory (ISIT2024)49-5410.1109/ISIT57864.2024.10619347URL
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Books

  1. 情報・符号理論楫　勇一, 岩田　賢一, 葛岡　成晃, 井坂　元彦オーム社2013/01
  2. IT Text 情報理論村松　純, 岩田　賢一, 有村　光晴, 渋谷　智治オーム社2008/09
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Presentations

  1. A Universal Source Code Based on the AIVF Coding Strategy11th-Asia-Europe Workshop on Concepts in Information Theory2019/07/03
  2. 有限状態マルコフ連鎖の平均性能に関する繰り返し最適化アルゴリズム電子情報通信学会情報理論研究会2019/02/01
  3. 2元アルファベティックAIFV符号における最適な符号木の構成法電子情報通信学会情報理論研究会2019/02/01
  4. 最適な2元AIFV-m符号の構成法の実装例第41回情報理論とその応用シンポジウム2018/12/20
  5. 2元AIFV符号におけるコンパクト符号木の列挙と符号化第41回情報理論とその応用シンポジウム2018/12/20
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Industrial Property Rights

  1. Patent符号化・復号化装置及び演算回路設定方法2012-2063952012/09/1959996342016/09/09
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Grant-in-Aid for Scientific Research and Health,Labour and Welfare Sciences

  1. 2024Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research情報源符号の平均符号長と復号遅延に関する階層的クラスタリングの解明基盤研究(C)（一般）
  2. 2020Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research準瞬時FV符号およびその拡張符号に対する理論および応用に関する研究基盤研究(B)（一般）
  3. 2022Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research有限マルコフ決定過程における平均性能最適化の理論深化と情報理論における応用Grant-in-Aid for Scientific Research(C)
  4. 2021Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research有限マルコフ決定過程における平均性能最適化の理論深化と情報理論における応用Grant-in-Aid for Scientific Research(C)
  5. 2020Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research有限マルコフ決定過程における平均性能最適化の理論深化と情報理論における応用基盤研究(C)（一般）
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