• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Symbolic-Numeric Computations for Practical Situations

Research Project

Project/Area Number 22700011
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Fundamental theory of informatics
Research InstitutionKobe University

Principal Investigator

NAGASAKA Kosaku  神戸大学, 人間発達環境学研究科, 准教授 (70359909)

Project Period (FY) 2010-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsアルゴリズム理論 / 数式処理
Research Abstract

We proposed an algorithm for computing a structured Groebner basis approximately. With this algorithm, even if the input has some numerical error, we can compute their Groebner basis which are widely used for simplifying algebraic relations for example. For approximate polynomial GCD, we extended the concept to polynomials over integers and gave some special lattice to make it being compatible with multiple precision integers. Especially for the well known approximate polynomial GCD algorithm, QRGCD, we extended it with much theoretical considerations and proposed ExQRGCD algorithm. Moreover, for those results, to achieve that many people can use the results, we implemented them with C and published it on the website. The name of library is "LIBSNAP".

Report

(5 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (35 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (27 results) (of which Invited: 1 results) Remarks (3 results)

  • [Journal Article] Extended QRGCD Algorithm2013

    • Author(s)
      K.Nagasaka and T.Masui
    • Journal Title

      Lecture Notes in Computer Science

      Volume: Vol.8136 Pages: 257-272

    • DOI

      10.1007/978-3-319-02297-0_22

    • NAID

      120005474300

    • ISBN
      9783319022963, 9783319022970
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Approximate Polynomial GCD over Integers2011

    • Author(s)
      K.Nagasaka
    • Journal Title

      Journal of Symbolic Computation

      Volume: Vol.46(12) Pages: 1306-1317

    • NAID

      120005348234

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Computing a Structured Groebner Basis Approximately2011

    • Author(s)
      K.Nagasaka
    • Journal Title

      Proc. International Symposium on Symbolic and Algebraic Computation 2011

      Pages: 273-280

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Approximate Polynomial GCD over Integers

    • Author(s)
      Kosaku Nagasaka
    • Journal Title

      Journal of Symbolic Computation

      Volume: (掲載確定)

    • NAID

      120005348234

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Computing a Structured Groebner Basis Approximately

    • Author(s)
      Kosaku Nagasaka
    • Journal Title

      Proceedings of the 2011 International Symposium on Symbolic and Algebraic Computation

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 近似GCDの速度比較 qrgcdからfastgcdまで2014

    • Author(s)
      長坂耕作
    • Organizer
      Risa/Asir Conference 2014
    • Place of Presentation
      神戸大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] 近似GCD アルゴリズムにおける枢軸選択の影響2013

    • Author(s)
      長坂耕作
    • Organizer
      RIMS 研究集会「数式処理とその周辺分野の研究」
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Final Research Report
  • [Presentation] 厳 密に与えられた系のGroebner 基底を数値的に求める場合に必要な桁精度の考察2013

    • Author(s)
      長坂耕作
    • Organizer
      研究集会「数式処理研究と産学連携の新たな発展」
    • Place of Presentation
      九州大学マス・フォア・インダストリ研究所
    • Related Report
      2013 Final Research Report
  • [Presentation] Revisiting QRGCD and Comparison with ExQRGC2013

    • Author(s)
      K.Nagasaka and T.Masui
    • Organizer
      ISSAC 2013
    • Place of Presentation
      Boston, USA (Poster presentations 査読有)
    • Related Report
      2013 Final Research Report
  • [Presentation] 近似GCDの性能評価 - LIBSNAPにおける3つの実装 -2013

    • Author(s)
      長坂耕作
    • Organizer
      第22回 日本数式処理学会大会
    • Place of Presentation
      防衛大学校
    • Related Report
      2013 Annual Research Report
  • [Presentation] 近似GCDアルゴリズムの改良 - QRGCDの解析とExQRGCDとの比較 -2013

    • Author(s)
      長坂耕作,増井貴明
    • Organizer
      第42回数値解析シンポジウム
    • Place of Presentation
      愛媛県松山市
    • Related Report
      2013 Annual Research Report
  • [Presentation] Revisiting QRGCD and Comparison with ExQRGCD2013

    • Author(s)
      K.Nagasaka and T.Masui
    • Organizer
      ISSAC 2013 Poster presentations
    • Place of Presentation
      Boston, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] 厳密に与えられた系のGroebner基底を数値的に求める場合に必要な桁精度の考察2013

    • Author(s)
      長坂耕作
    • Organizer
      研究集会 数式処理研究と産学連携の新たな発展
    • Place of Presentation
      九州大学 マス・フォア・インダストリ研究所
    • Related Report
      2013 Annual Research Report
  • [Presentation] 近似 GCD アルゴリズムにおける枢軸選択の影響2013

    • Author(s)
      長坂耕作
    • Organizer
      RIMS 研究集会 「数式処理とその周辺分野の研究」
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
  • [Presentation] 近似グレブナ基底の後退誤差解析の試み2012

    • Author(s)
      長坂耕作
    • Organizer
      Risa/Asir Conference 2012
    • Place of Presentation
      神戸大学(兵庫県)
    • Year and Date
      2012-03-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] Backward error analysis of approximate Groebner basis2012

    • Author(s)
      K.Nagasaka
    • Organizer
      ISSAC 2012
    • Place of Presentation
      Grenoble, France (Poster presentations 査読有)
    • Related Report
      2013 Final Research Report
  • [Presentation] Backward error analysis of approximate Groebner basis2012

    • Author(s)
      Kosaku Nagasaka
    • Organizer
      ISSAC 2012 Poster presentations (査読有)
    • Place of Presentation
      グルノーブル(フランス)
    • Related Report
      2012 Annual Research Report
  • [Presentation] A Symbolic-Numeric Approach to Groebner Basis with Inexact Input2011

    • Author(s)
      K.Nagasaka
    • Organizer
      Fields Institute Workshop on Hybrid Methodologies for Symbolic-Numeric Computation (Hybrid 2011)
    • Place of Presentation
      Waterloo, Canada
    • Related Report
      2013 Final Research Report
    • Invited
  • [Presentation] An improvement in the lattice construction process of Approximate Polynomial GCD over Integers2011

    • Author(s)
      K.Nagasaka
    • Organizer
      Symbolic-Numeric Computation (SNC 2011)
    • Place of Presentation
      San Jose, USA (査読有)
    • Related Report
      2013 Final Research Report
  • [Presentation] 近似代数の汎用ライブラリに向けて2011

    • Author(s)
      長坂耕作
    • Organizer
      研究集会数式処理研究の新たな発展
    • Place of Presentation
      京都大学数理解析研究所(京都府)
    • Related Report
      2011 Annual Research Report
  • [Presentation] An improvement in the lattice construction process of Approximate Polynomial GCD over Integers2011

    • Author(s)
      K.Nagasaka
    • Organizer
      Symbolic-Numeric Computation (SNC2011)
    • Place of Presentation
      サンノゼ(米国)(査読有)
    • Related Report
      2011 Annual Research Report
  • [Presentation] 整数係数多項式の近似GCDとその実装2011

    • Author(s)
      長坂耕作
    • Organizer
      第20回日本数式処理学会大会
    • Place of Presentation
      神戸大学(兵庫県)
    • Related Report
      2011 Annual Research Report
  • [Presentation] A Symbolic-Numeric Approach to Groebner Basis with Inexact Input2011

    • Author(s)
      K.Nagasaka
    • Organizer
      Fields Institute Workshop on Hybrid Methodologies for Symbolic-Numeric Computation (Hybrid2011)
    • Place of Presentation
      ウォタールー(カナダ)(招待講演)
    • Related Report
      2011 Annual Research Report
  • [Presentation] 近似GCDの無平方分解への応用2011

    • Author(s)
      長坂耕作
    • Organizer
      研究集会Computer Algebra-The Algorithms, Implementations and the Next Generation
    • Place of Presentation
      京都大学数理解析研究所(京都府)
    • Related Report
      2011 Annual Research Report
  • [Presentation] 近似Groebner基底の逐次算法に向けて2010

    • Author(s)
      長坂耕作
    • Organizer
      研究集会Computer Algebra-Design of Algorithms, Implementations and Applications
    • Place of Presentation
      京都大学数理解析研究所(京都)
    • Year and Date
      2010-12-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] 準同型暗号と整数及び整数多項式の近似GCD2010

    • Author(s)
      長坂耕作
    • Organizer
      研究集会 数式処理研究の新たな発展
    • Place of Presentation
      京都大学数理解析研究所(京都)
    • Year and Date
      2010-07-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] 近似Groebner基底とSLRA2010

    • Author(s)
      長坂耕作
    • Organizer
      第19回 日本数式処理学会大会
    • Place of Presentation
      名古屋大学ベンチャービジネスラボラトリ(愛知)
    • Year and Date
      2010-06-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] 近似Groebner 基底とSLRA2010

    • Author(s)
      長坂耕作
    • Organizer
      第19回日本数式処理学会大会
    • Place of Presentation
      名古屋大学ベンチャービジネスラボラトリ
    • Related Report
      2013 Final Research Report
  • [Presentation] 近似グレブナ基底の後退誤差解析について

    • Author(s)
      長坂耕作
    • Organizer
      第21回 日本数式処理学会大会
    • Place of Presentation
      山口大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] The Berlekamp Algorithm -サーベイと試み-

    • Author(s)
      長坂耕作
    • Organizer
      研究集会 数式処理研究の新たな発展
    • Place of Presentation
      京都大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] SNAP パッケージと QRGCD アルゴリズムの改善

    • Author(s)
      増井貴明,長坂耕作
    • Organizer
      研究集会 Computer Algebra - The Algorithms, Implementations and the Next Generation
    • Place of Presentation
      京都大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] ExQRGCDの近似代数ライブラリLIBSNAPへの実装について

    • Author(s)
      長坂耕作
    • Organizer
      Risa/Asir Conference 2013
    • Place of Presentation
      神戸大学
    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://wwwmain.h.kobe-u.ac.jp/~nagasaka/research/snap/

    • Related Report
      2013 Final Research Report
  • [Remarks] LIBSNAP

    • URL

      http://wwwmain.h.kobe-u.ac.jp/~nagasaka/research/snap/

    • Related Report
      2013 Annual Research Report
  • [Remarks] LIBSNAP

    • URL

      http://wwwmain.h.kobe-u.ac.jp/~nagasaka/research/snap/

    • Related Report
      2012 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi