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Chemical Reaction Computation based on Reaction Automata Theory

Research Project

Project/Area Number 17K00021
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Theory of informatics
Research InstitutionWaseda University

Principal Investigator

Yokomori Takashi  早稲田大学, 教育・総合科学学術院, 教授 (60139722)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords化学反応系 / 受理計算モデル / 言語の表現定理 / オートマトン分解 / オートマトンの分解 / 表現定理 / オートマトンの分解と分割 / 決定性と可逆性 / 化学反応トランスデューサ / 多重集合 / 計算能力 / アルゴリズム / 情報基礎 / DNAコンピュータ / 情報工学 / 生体生命情報学
Outline of Final Research Achievements

In order to understand the information processing mechanism of chemicalreactions, we proposed the notion of Chemical Reaction Automata(CRAs) that is a computing model based on multiset memory, and investigated the computational capabilities and algorithmic properties of various classes of CRAs. Primary results include that (i) Any language accepted by CRA can be expressed as L=h(Bn∩R), for some regular set R and the balanced language Bn. (ⅱ) The notions of determinism and reversibility of CRAs are introduced and their computational powers were analyzed. (ⅲ)CR Transducers(CRTs) were newly proposed and investigated, and a sufficient condition for CRTs to be decomposable was proved. (ⅳ) In order to disseminate the theory of reaction automata, we delivered invited lectures at international conferences and published a survey paper in an international journal.

Academic Significance and Societal Importance of the Research Achievements

本研究の目的は,分子レベルでの化学反応系の振る舞いを解析するために,多重集合をベースとする構成的な離散的計算モデルを構築し,そこで得られる計算論的な知見をもとに,最終的に化学反応に基づく反応プログラミング技法を確立する事である.化学反応系のシミュレーションは実験系による実装前の予測データを得る手段として重要であるが,特に少数分子反応系の場合,状態空間を離散的な多重集合とみなす計算モデルが有効である.この離散的アプローチでは少数分子系の振る舞いに関する構成的な解析が可能となり,反応系の動作機構がアルゴリズムとして理解可能となる.また,化学反応がプログラミング可能となる等,有益な知見が得られる.

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report

Research Products

(9 results)

All 2021 2019 2018 2017

All Journal Article (7 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] On the computing powers of L-reductions of insertion languages2021

    • Author(s)
      Okubo Fumiya、Yokomori Takashi
    • Journal Title

      Theoretical Computer Science

      Volume: 862 Pages: 224-235

    • DOI

      10.1016/j.tcs.2020.11.029

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Theory of reaction automata: a survey2021

    • Author(s)
      Yokomori Takashi、Okubo Fumiya
    • Journal Title

      Journal of Membrane Computing

      Volume: 3 Pages: 63-85

    • DOI

      10.1007/s41965-021-00070-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Decomposition and factorization of chemical reaction transducers2019

    • Author(s)
      Okubo Fumiya、Yokomori Takashi
    • Journal Title

      Theoretical Computer Science Vol.777 , (2019) pp.431-442.

      Volume: 印刷中 Pages: 432-442

    • DOI

      10.1016/j.tcs.2019.01.032

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Natural Computing Paradigm -- A Concise Introduction2018

    • Author(s)
      T.Yokomori
    • Journal Title

      Journal of Robotics, Networking and Artificial Life

      Volume: 5 Pages: 6-9

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Computing with Multisets: A Survey on Reaction Automata Theory2018

    • Author(s)
      T.Yokomori and F.Okubo
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 10936 Pages: 421-431

    • DOI

      10.1007/978-3-319-94418-0_42

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Computing Power of Determinism and Reversibility in Chemical Reaction Automata2018

    • Author(s)
      F.Okubo and T.Yokomori
    • Journal Title

      Reversibility and Universality (Edited by A.Adamatzky)

      Volume: 30 Pages: 279-298

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterizations of Language Families Based on Local and Star Languages2017

    • Author(s)
      F.Okubo and T.Yokomori
    • Journal Title

      Fundamenta Informaticae

      Volume: 154 Pages: 323-341

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Natural Computing Paradigm ─ A Concise Introduction2018

    • Author(s)
      T.Yokomori
    • Organizer
      International Conf. on Artificial Life and Robotics 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Computing with Multisets : A Survey on Reaction Automata Theory2018

    • Author(s)
      F.Okubo and T.Yokomori
    • Organizer
      Computability in Europe 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2017-04-28   Modified: 2022-01-27  

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