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Combinatorics of string lexicographic orders and their applications

Research Project

Project/Area Number 20H04141
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 60010:Theory of informatics-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Bannai Hideo  東京医科歯科大学, M&Dデータ科学センター, 教授 (20323644)

Co-Investigator(Kenkyū-buntansha) 井 智弘  九州工業大学, 大学院情報工学研究院, 准教授 (20773360)
関 新之助  電気通信大学, 大学院情報理工学研究科, 准教授 (30624944)
稲永 俊介  九州大学, システム情報科学研究院, 教授 (60448404)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywords辞書式順序 / Lyndon 語 / BBWT / Lyndon 配列 / 辞書式圧縮 / FM-index / 繰り返し構造 / BWT / Lyndon語 / 双方向マクロスキーム / 文字列アトラクタ / 直線的プログラム / 全単射 BWT / Thue-Morse 文字列 / 繰り返し指標 / Lyndon 木 / 原始平方
Outline of Research at the Start

近年,情報通信・計測機器の発達により,多岐にわたる分野で膨大な量の文字列データが生み出され,利用可能となっている.このような大規模な文字列データを効率的に処理・解析する技術は多様な応用があるため広く必要とされ,極めて重要である.多様な文字列データに対して有効かつ効率的な処理・解析アルゴリズムを開発するには,文字列の様々な特徴に関する理論的・組合せ的性質の深い理解が必要不可欠である.本研究は,文字列の辞書式順序に着目し,その組合せ的性質の解明およびそれらを利用した効率的な文字列処理のアルゴリズムを開発を目指す.

Outline of Final Research Achievements

We worked on various problems related to lexicographic orderings of strings, such as Lyndon words, Lyndon trees, bijective Burrows-Wheeler Transform, repetitiveness measures of Thue-Morse words based on dictionary compression. Furthermore, we proposed efficient algorithms and data structures that exploit these characteristics and also showed hardness of some problems.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果として得られた辞書式順序に関連する諸性質は文字列の組み合わせ論に関する基礎的なものである。これらの諸性質は本研究で提案したアルゴリズムだけではなく、今後出現する様々な種類の文字列データ・問題に対する効率的な処理アルゴリズムの開発に広く寄与する可能性がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (69 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (8 results) Journal Article (39 results) (of which Int'l Joint Research: 15 results,  Peer Reviewed: 39 results,  Open Access: 16 results) Presentation (21 results) (of which Int'l Joint Research: 21 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Dalhousie University(カナダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Technical University of Dortmund/Munster University(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Florida(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Helsinki(フィンランド)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of California, Berkeley(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Helsinki University(フィンランド)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ヘルシンキ大学(フィンランド)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ニコラウス・コペルニクス大学(ポーランド)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Computing Longest Lyndon Subsequences and Longest Common Lyndon Subsequences2024

    • Author(s)
      Hideo Bannai and Tomohiro I and Tomasz Kociumaka and Dominik Koeppl and Simon J. Puglisi
    • Journal Title

      Algorithmica

      Volume: 86 Issue: 3 Pages: 735-756

    • DOI

      10.1007/s00453-023-01125-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pfp-fm: an accelerated FM-index2024

    • Author(s)
      Hong Aaron、Oliva Marco、Koppl Dominik、Bannai Hideo、Boucher Christina、Gagie Travis
    • Journal Title

      Algorithms for Molecular Biology

      Volume: 19 Issue: 1

    • DOI

      10.1186/s13015-024-00260-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Hardness of Smallest RLSLPs and Collage Systems2024

    • Author(s)
      Kawamoto Akiyoshi、I Tomohiro、Koppl Dominik、Bannai Hideo
    • Journal Title

      Proceedings of the Data Compression Conference 2024 (DCC 2024)

      Volume: - Pages: 243-252

    • DOI

      10.1109/dcc58796.2024.00032

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Acceleration of FM-Index Queries Through Prefix-Free Parsing2023

    • Author(s)
      Aaron Hong, Marco Oliva, Dominik Koppl, Hideo Bannai, Christina Boucher, Travis Gagie
    • Journal Title

      Proceedings of the 23rd International Workshop on Algorithms in Bioinformatics (WABI 2023)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Linear-Time Computation of Generalized Minimal Absent Words for Multiple Strings2023

    • Author(s)
      Kouta Okabe, Takuya Mieno, Yuto Nakashima, Shunsuke Inenaga
    • Journal Title

      Proceedings of 30th International Symposium on String Processing and Information Retrieval

      Volume: LNCS 14240 Pages: 331-344

    • DOI

      10.1007/978-3-031-43980-3_27

    • ISBN
      9783031439797, 9783031439803
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lyndon Arrays in Sublinear Time2023

    • Author(s)
      Hideo Bannai, Jonas Ellert
    • Journal Title

      Proceedings of the 31st Annual European Symposium on Algorithms (ESA 2023)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optimal LZ-End Parsing Is Hard2023

    • Author(s)
      Hideo Bannai, Mitsuru Funakoshi, Kazuhiro Kurita, Yuto Nakashima, Kazuhisa Seto, Takeaki Uno
    • Journal Title

      Proceedings of the 34th Annual Symposium on Combinatorial Pattern Matching (CPM 2023)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Linear-time computation of DAWGs, symmetric indexing structures, and MAWs for integer alphabets2023

    • Author(s)
      Fujishige Yuta、Tsujimaru Yuki、Inenaga Shunsuke、Bannai Hideo、Takeda Masayuki
    • Journal Title

      Theoretical Computer Science

      Volume: 973 Pages: 114093-114093

    • DOI

      10.1016/j.tcs.2023.114093

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Longest bordered and periodic subsequences2023

    • Author(s)
      Hideo Bannai and Tomohiro I and Dominik Koeppl
    • Journal Title

      Inf. Process. Lett.

      Volume: 182 Pages: 1-6

    • DOI

      10.1016/j.ipl.2023.106398

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Space-Efficient STR-IC-LCS Computation2023

    • Author(s)
      Yuuki Yonemoto, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 13878 Pages: 372-384

    • DOI

      10.1007/978-3-031-23101-8_25

    • ISBN
      9783031231001, 9783031231018
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Online Algorithms for Finding Distinct Substrings with Length and Multiple Prefix and Suffix Conditions2022

    • Author(s)
      Leonard Laurentius、Inenaga Shunsuke、Bannai Hideo、Mieno Takuya
    • Journal Title

      Proceedings of the 29th International Symposium on String Processing and Information Retrieval (SPIRE 2022)

      Volume: LNCS 13617 Pages: 24-37

    • DOI

      10.1007/978-3-031-20643-6_3

    • ISBN
      9783031206429, 9783031206436
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Computing Longest (Common) Lyndon Subsequences2022

    • Author(s)
      Hideo Bannai, Tomohiro I, Tomasz Kociumaka, Dominik Koeppl, Simon J. Puglisi
    • Journal Title

      Proc. 33rd International Workshop on Combinatorial Algorithms (IWOCA) 2022

      Volume: - Pages: 128-142

    • DOI

      10.1007/978-3-031-06678-8_10

    • ISBN
      9783031066771, 9783031066788
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Computing NP-Hard Repetitiveness Measures via MAX-SAT2022

    • Author(s)
      Bannai, Hideo、Goto, Keisuke、Ishihata, Masakazu、Kanda, Shunsuke、Koeppl, Dominik、Nishimoto, Takaaki
    • Journal Title

      Proceedings of the 30th Annual European Symposium on Algorithms (ESA 2022)

      Volume: LIPIcs 244

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Parameterized DAWGs: Efficient constructions and bidirectional pattern searches2022

    • Author(s)
      Katsuhito Nakashima, Noriki Fujisato, Diptarama Hendrian, Yuto Nakashima, Ryo Yoshinaka, Shunsuke Inenaga, Hideo Bannai, Ayumi Shinohara, Masayuki Takeda
    • Journal Title

      Theoretical Computer Science

      Volume: 933 Pages: 21-42

    • DOI

      10.1016/j.tcs.2022.09.008

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Combinatorics of minimal absent words for a sliding window2022

    • Author(s)
      Tooru Akagi, Yuki Kuhara, Takuya Mieno, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Theoretical Computer Science

      Volume: 927 Pages: 109-119

    • DOI

      10.1016/j.tcs.2022.06.002

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Factorizing Strings into Repetitions2022

    • Author(s)
      Hiroe Inoue, Yoshiaki Matsuoka, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Theory of Computing Systems

      Volume: 66 Issue: 2 Pages: 484-501

    • DOI

      10.1007/s00224-022-10070-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Order-preserving pattern matching indeterminate strings2022

    • Author(s)
      Russo Luis M.S.、Costa Diogo、Henriques Rui、Bannai Hideo、Francisco Alexandre P.
    • Journal Title

      Information and Computation

      Volume: 289 Pages: 104924-104924

    • DOI

      10.1016/j.ic.2022.104924

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Palindromic trees for a sliding window and its applications2022

    • Author(s)
      Takuya Mieno, Kiichi Watanabe, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Information Processing Letters

      Volume: 173 Pages: 106174-106174

    • DOI

      10.1016/j.ipl.2021.106174

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] c-trie++: A dynamic trie tailored for fast prefix searches2021

    • Author(s)
      Kazuya Tsuruta, Dominik Koeppl, Shunsuke Kanda, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Information and Computation

      Volume: - Pages: 104794-104794

    • DOI

      10.1016/j.ic.2021.104794

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Parameterized Suffix Tray2021

    • Author(s)
      Noriki Fujisato, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Proceedings of 12th International Conference on Algorithms and Complexity

      Volume: 12701 Pages: 258-270

    • DOI

      10.1007/978-3-030-75242-2_18

    • ISBN
      9783030752415, 9783030752422
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Constructing the Bijective and the Extended Burrows-Wheeler Transform in Linear Time2021

    • Author(s)
      Hideo Bannai, Juha Karkkainen, Dominik Koeppl, Marcin Piatkowski
    • Journal Title

      Proceedings of the 32nd Annual Symposium on Combinatorial Pattern Matching (CPM 2021)

      Volume: LIPIcs 191

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Separation of $$\gamma $$ and b via Thue-Morse Words2021

    • Author(s)
      Bannai Hideo、Funakoshi Mitsuru、I Tomohiro、Koeppl Dominik、Mieno Takuya、Nishimoto Takaaki
    • Journal Title

      Proceedings of the 28th International Symposium on String Processing and Information Retrieval (SPIRE 2021)

      Volume: LNCS 12944 Pages: 167-178

    • DOI

      10.1007/978-3-030-86692-1_14

    • ISBN
      9783030866914, 9783030866921
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Longest Common Rollercoasters2021

    • Author(s)
      Kosuke Fujita, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Proceedings of 28th International Symposium on String Processing and Information Retrieval

      Volume: 12944 Pages: 21-32

    • DOI

      10.1007/978-3-030-86692-1_3

    • ISBN
      9783030866914, 9783030866921
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Grammar Index by Induced Suffix Sorting2021

    • Author(s)
      Tooru Akagi, Dominik Koeppl, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Proceedings of 28th International Symposium on String Processing and Information Retrieval

      Volume: 12944 Pages: 85-99

    • DOI

      10.1007/978-3-030-86692-1_8

    • ISBN
      9783030866914, 9783030866921
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Efficiently computing runs on a trie2021

    • Author(s)
      Ryo Sugahara, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Theoretical Computer Science

      Volume: 887 Pages: 143-151

    • DOI

      10.1016/j.tcs.2021.07.011

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Computing Minimal Unique Substrings for a Sliding Window2021

    • Author(s)
      Takuya Mieno, Yuta Fujishige, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Algorithmica

      Volume: 84 Issue: 3 Pages: 670-693

    • DOI

      10.1007/s00453-021-00864-1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Smallest Grammar Problem Revisited2021

    • Author(s)
      Hideo Bannai, Momoko Hirayama, Danny Hucke, Shunsuke Inenaga, Artur Jez, Markus Lohrey, Carl Philipp Reh
    • Journal Title

      IEEE Transactions on Information Theory

      Volume: 67(1) Issue: 1 Pages: 317-328

    • DOI

      10.1109/tit.2020.3038147

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Computing longest palindromic substring after single-character or block-wise edits2021

    • Author(s)
      Funakoshi Mitsuru, Nakashima Yuto, Inenaga Shunsuke, Bannai Hideo, Takeda Masayuki
    • Journal Title

      Theoretical Computer Science

      Volume: 859 Pages: 116-133

    • DOI

      10.1016/j.tcs.2021.01.014

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fast Algorithms for the Shortest Unique Palindromic Substring Problem on Run-Length Encoded Strings2020

    • Author(s)
      Watanabe Kiichi, Nakashima Yuto, Inenaga Shunsuke, Bannai Hideo, Takeda Masayuki
    • Journal Title

      Theory of Computing Systems

      Volume: 64 Issue: 7 Pages: 1273-1291

    • DOI

      10.1007/s00224-020-09980-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DAWGs for Parameterized Matching: Online Construction and Related Indexing Structures2020

    • Author(s)
      Katsuhito Nakashima, Moriki Fujisato, Diptarama Hendrian, Yuto Nakashima, Ryo Yoshinaka, Shunsuke Inenaga, Hideo Bannai, Ayumi Shinohara, Masayuki Takeda
    • Journal Title

      Proceedings of the 31st Annual Symposium on Combinatorial Pattern Matching (CPM 2020)

      Volume: LIPIcs 161

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detecting k-(Sub-)Cadences and Equidistant Subsequence Occurrences2020

    • Author(s)
      Mitsuru Funakoshi, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda, Ayumi Shinohara
    • Journal Title

      Proceedings of the 31st Annual Symposium on Combinatorial Pattern Matching (CPM 2020)

      Volume: LIPIcs 161

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Grammar-compressed Self-index with Lyndon Words2020

    • Author(s)
      Kazuya Tsuruta, Dominik Koeppl, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      情報処理学会論文誌数理モデル化と応用(TOM)

      Volume: 13(2) Pages: 84-92

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] More Time-Space Tradeoffs for Finding a Shortest Unique Substring2020

    • Author(s)
      Hideo Bannai, Travis Gagie, Gary Hoppenworth, Simon J. Puglisi, Luis M. S. Russo
    • Journal Title

      Algorithms

      Volume: 13(9) Issue: 9 Pages: 234-234

    • DOI

      10.3390/a13090234

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lyndon Words, the Three Squares Lemma, and Primitive Squares2020

    • Author(s)
      Hideo Bannai, Takuya Mieno, Yuto Nakashima
    • Journal Title

      Proceedings of 27th International Symposium on String Processing and Information Retrieval

      Volume: 12303 Pages: 265-273

    • DOI

      10.1007/978-3-030-59212-7_19

    • ISBN
      9783030592110, 9783030592127
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On repetitiveness measures of Thue-Morse words2020

    • Author(s)
      Kanaru Kutsukake, Takuya Matsumoto, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Proceedings of 27th International Symposium on String Processing and Information Retrieval

      Volume: 12303 Pages: 213-220

    • DOI

      10.1007/978-3-030-59212-7_15

    • ISBN
      9783030592110, 9783030592127
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Longest Square Subsequence Problem Revisited2020

    • Author(s)
      Takafumi Inoue, Shunsuke Inenaga, Hideo Bannai
    • Journal Title

      Proceedings of the 27th International Symposium on String Processing and Information Retrieval (SPIRE 2020)

      Volume: LNCS 12303 Pages: 147-154

    • DOI

      10.1007/978-3-030-59212-7_11

    • ISBN
      9783030592110, 9783030592127
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Towards Efficient Interactive Computation of Dynamic Time Warping Distance2020

    • Author(s)
      Akihiro Nishi, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Journal Title

      Proceedings of 27th International Symposium on String Processing and Information Retrieval

      Volume: 12303 Pages: 27-41

    • DOI

      10.1007/978-3-030-59212-7_3

    • ISBN
      9783030592110, 9783030592127
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Space-efficient algorithms for computing minimal/shortest unique substrings2020

    • Author(s)
      Mieno Takuya, Koppl Dominik, Nakashima Yuto, Inenaga Shunsuke, Bannai Hideo, Takeda Masayuki
    • Journal Title

      Theoretical Computer Science

      Volume: 845 Pages: 230-242

    • DOI

      10.1016/j.tcs.2020.09.017

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Compaction of Church Numerals2019

    • Author(s)
      Isamu Furuya, Takuya Kida
    • Journal Title

      Algorithms

      Volume: 12(8) Issue: 4 Pages: 159-159

    • DOI

      10.3390/a13040103

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] On the Hardness of Smallest RLSLPs and Collage Systems2024

    • Author(s)
      Kawamoto Akiyoshi、I Tomohiro、Koppl Dominik、Bannai Hideo
    • Organizer
      Data Compression Conference 2024 (DCC 2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Acceleration of FM-Index Queries Through Prefix-Free Parsing2023

    • Author(s)
      Aaron Hong, Marco Oliva, Dominik Koppl, Hideo Bannai, Christina Boucher, Travis Gagie
    • Organizer
      23rd International Workshop on Algorithms in Bioinformatics (WABI 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Linear-Time Computation of Generalized Minimal Absent Words for Multiple Strings2023

    • Author(s)
      Okabe Kouta、Mieno Takuya、Nakashima Yuto、Inenaga Shunsuke、Bannai Hideo
    • Organizer
      30th International Symposium on String Processing and Information Retrieval (SPIRE 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lyndon Arrays in Sublinear Time2023

    • Author(s)
      Hideo Bannai, Jonas Ellert
    • Organizer
      31st Annual European Symposium on Algorithms (ESA 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimal LZ-End Parsing Is Hard2023

    • Author(s)
      Hideo Bannai, Mitsuru Funakoshi, Kazuhiro Kurita, Yuto Nakashima, Kazuhisa Seto, Takeaki Uno
    • Organizer
      34th Annual Symposium on Combinatorial Pattern Matching (CPM 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Space-Efficient STR-IC-LCS Computation2023

    • Author(s)
      Yonemoto Yuuki、Nakashima Yuto、Inenaga Shunsuke、Bannai Hideo
    • Organizer
      48th International Conference on Current Trends in Theory and Practice of Computere Science (SOFSEM 2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Online Algorithms for Finding Distinct Substrings with Length and Multiple Prefix and Suffix Conditions2022

    • Author(s)
      Leonard Laurentius、Inenaga Shunsuke、Bannai Hideo、Mieno Takuya
    • Organizer
      29th International Symposium on String Processing and Information Retrieval (SPIRE 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Computing Longest (Common) Lyndon Subsequences2022

    • Author(s)
      Bannai Hideo、I Tomohiro、Kociumaka Tomasz、Koeppl Dominik、Puglisi Simon J.
    • Organizer
      33rd International Workshop on Combinatorial Algorithms (IWOCA 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Computing NP-Hard Repetitiveness Measures via MAX-SAT2022

    • Author(s)
      Bannai, Hideo、Goto, Keisuke、Ishihata, Masakazu、Kanda, Shunsuke、Koeppl, Dominik、Nishimoto, Takaaki
    • Organizer
      30th Annual European Symposium on Algorithms (ESA 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Parameterized Suffix Tray2021

    • Author(s)
      Fujisato Noriki、Nakashima Yuto、Inenaga Shunsuke、Bannai Hideo、Takeda Masayuki
    • Organizer
      12th International Conference on Algorithms and Complexity (CIAC 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Constructing the Bijective and the Extended Burrows-Wheeler Transform in Linear Time2021

    • Author(s)
      Hideo Bannai, Juha Karkkainen, Dominik Koeppl, Marcin Piatkowski
    • Organizer
      32nd Annual Symposium on Combinatorial Pattern Matching (CPM 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Repetitions in Strings: A "Constant" Problem2021

    • Author(s)
      Hideo Bannai
    • Organizer
      32nd Annual Symposium on Combinatorial Pattern Matching (CPM 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A Separation of $$\gamma $$ and b via Thue-Morse Words2021

    • Author(s)
      Bannai Hideo、Funakoshi Mitsuru、I Tomohiro、Koeppl Dominik、Mieno Takuya、Nishimoto Takaaki
    • Organizer
      28th International Symposium on String Processing and Information Retrieval (SPIRE 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Longest Common Rollercoasters2021

    • Author(s)
      Fujita Kosuke、Nakashima Yuto、Inenaga Shunsuke、Bannai Hideo、Takeda Masayuki
    • Organizer
      28th International Symposium on String Processing and Information Retrieval (SPIRE 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Grammar Index by Induced Suffix Sorting2021

    • Author(s)
      Akagi Tooru、Koeppl Dominik、Nakashima Yuto、Inenaga Shunsuke、Bannai Hideo、Takeda Masayuki
    • Organizer
      28th International Symposium on String Processing and Information Retrieval (SPIRE 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DAWGs for Parameterized Matching: Online Construction and Related Indexing Structures2020

    • Author(s)
      Katsuhito Nakashima, Moriki Fujisato, Diptarama Hendrian, Yuto Nakashima, Ryo Yoshinaka, Shunsuke Inenaga, Hideo Bannai, Ayumi Shinohara, Masayuki Takeda
    • Organizer
      31st Annual Symposium on Combinatorial Pattern Matching (CPM 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Detecting k-(Sub-)Cadences and Equidistant Subsequence Occurrences2020

    • Author(s)
      Mitsuru Funakoshi, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda, Ayumi Shinohara
    • Organizer
      31st Annual Symposium on Combinatorial Pattern Matching (CPM 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lyndon Words, the Three Squares Lemma, and Primitive Squares2020

    • Author(s)
      Hideo Bannai, Takuya Mieno, Yuto Nakashima
    • Organizer
      27th International Symposium on String Processing and Information Retrieval (SPIRE 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On Repetitiveness Measures of Thue-Morse Words2020

    • Author(s)
      Kanaru Kutsukake, Takuya Matsumoto, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Organizer
      27th International Symposium on String Processing and Information Retrieval (SPIRE 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Longest Square Subsequence Problem Revisited2020

    • Author(s)
      Takafumi Inoue, Shunsuke Inenaga, Hideo Bannai
    • Organizer
      27th International Symposium on String Processing and Information Retrieval (SPIRE 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Towards Efficient Interactive Computation of Dynamic Time Warping Distance2020

    • Author(s)
      Akihiro Nishi, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda
    • Organizer
      27th International Symposium on String Processing and Information Retrieval (SPIRE 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Remarks] MAX-SATソルバを利用してNP困難な圧縮性指標を計算するソフトウェア

    • URL

      https://github.com/kg86/satcomp

    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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