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Stream Data Compression by Online Grammar Compression and VF Coding Algorithm

Research Project

Project/Area Number 15K00002
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Kida Takuya  北海道大学, 情報科学研究科, 准教授 (70343316)

Co-Investigator(Renkei-kenkyūsha) SAKAMOTO HIROSHI  九州工業大学, 大学院情報工学研究院, 教授 (50315123)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsデータ圧縮 / VF符号化 / 圧縮照合 / 文法圧縮 / VF符号 / 高階圧縮 / ラムダ式 / 大規模データ / 透過的データ圧縮法 / 透過的データ圧縮
Outline of Final Research Achievements

In this study, the applicant addressed the problem of improving the Re-Pair-VF algorithm which is a combination of VF code and grammar compression. Re-Pair-VF has better compression performance than the existing VF code, but it is difficult to apply it to large-scale data because it is based on Re-Pair which is offline type grammar transformation. Therefore, the applicant modified Re-Pair and developed online grammar transformation algorithm. Moreover, the applicant proposed an ALT (Adaptive LT-Repair) method that compresses while adaptively expanding the block length using the algorithm.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (10 results)

All 2018 2017 2016 2015

All Presentation (9 results) (of which Int'l Joint Research: 5 results) Book (1 results)

  • [Presentation] Compaction of Church Numerals for Higher-Order Compression2018

    • Author(s)
      Isamu Furuya and Takuya Kida
    • Organizer
      Data Compression Conference (DCC2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高階圧縮における連続パターンのコンパクトな表現法2017

    • Author(s)
      古谷勇,喜田拓也
    • Organizer
      第162回アルゴリズム研究会プログラム
    • Place of Presentation
      湯布院公民館(大分県・由布市)
    • Year and Date
      2017-03-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Discovering Relevance-Dependent Bicluster Structure from Relational Data2017

    • Author(s)
      Iku Ohama, Takuya Kida, Hiroki Arimura
    • Organizer
      The 26th International Joint Conference on Artificial Intelligence (IJCAI 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On the Model Shrinkage Effect of Gamma Process Edge Partition Models2017

    • Author(s)
      Iku Ohama, Issei Sato, Takuya Kida, Hiroki Arimura
    • Organizer
      The 31st Annual Conference on Neural Information Processing Systems (NIPS2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Compact Expression of Church Numerals and Its Application to Higher-Order Compression2017

    • Author(s)
      Isamu Furuya and Takuya Kida
    • Organizer
      The 20th Korea-Japan Joint Workshop on Algorithms and Computation (WAAC2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Compact Expression of Church Numerals and Its Application to Higher-Order Compression2017

    • Author(s)
      古谷 勇,喜田 拓也
    • Organizer
      情報処理北海道シンポジウム2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Online Grammar Transformation based on Re-Pair Algorithm2016

    • Author(s)
      Takuya Masaki and Takuya Kida
    • Organizer
      Data Compression Conference 2016 (DCC2016)
    • Place of Presentation
      Snowbird, UT, USA
    • Year and Date
      2016-03-31
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 制約付きRepairに基づいた適応型ブロック伸長法によるデータ圧縮アルゴリズム2015

    • Author(s)
      正木拓也,喜田拓也
    • Organizer
      情報処理学会 第154回アルゴリズム研究会
    • Place of Presentation
      福岡県 九大西新プラザ
    • Year and Date
      2015-09-28
    • Related Report
      2015 Research-status Report
  • [Presentation] 制約付きRepairアルゴリズムと等価な半オンライン型置換アルゴリズム2015

    • Author(s)
      正木拓也,喜田拓也
    • Organizer
      情報処理学会 第153回アルゴリズム研究会
    • Place of Presentation
      北海道 定山渓ビューホテル
    • Year and Date
      2015-06-12
    • Related Report
      2015 Research-status Report
  • [Book] Discovery Science2017

    • Author(s)
      Akihiro Yamamoto, Takuya Kida, Takeaki Uno, Tetsuji Kuboyama
    • Total Pages
      357
    • Publisher
      Springer
    • ISBN
      9783319677859
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2019-03-29  

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