OKAMOTO Masayuki 岡本正行

Researcher Number	50109196
Other IDs
External Links
Affiliation (based on the past Project Information) *help	2009 – 2011: Shinshu University, 工学部, 教授 2000 – 2007: 信州大学, 工学部, 教授 2001: 独立行政法人大学入試センター, 研究開発部, 教授
Review Section/Research Field	Principal Investigator 情報システム学(含情報図書館学) / Perception information processing/Intelligent robotics Except Principal Investigator Fundamental theory of informatics / 情報システム学(含情報図書館学) / Educational technology / Media informatics/Database
Keywords	Principal Investigator 文書画像処理 / 数式認識 / パターン認識 / Pattern Recognition / Character Recognition / Document Image Processing / 文字認識 / Mathematical formula Recognition / Formula Recognition / OCR … More Except Principal Investigator … More 視覚障害者支援 / 電子ジャーナル / 文字認識 / 数式認識 / string matching algorithm / finite automaton / pattern matching algorithm / extended regular expression / 近似検索アルゴリズム / 近似照合アルゴリズム / 文字列検索アルゴリズム / 検索アルゴリズム / 文字列照合アルゴリズム / 有限オートマトン / パターン照合アルゴリズム / 拡張正規表現 / Visually Impaired / Assist technology / Document digitization / Optical Character recognition / Structure analysis / Math recognition / Formula recognition / 行列の認識 / 科学技術文書電子化 / item response theory / computerized adaptive test / the Center Test for University Entrance Admission / large print formfat test / braille format test / students with disability / 項目プール / ペン・コンピュータ / ユーザ・インターフェース / 項目応答理論 / 項目反応理論 / 適応型コンピュータ・テスト / 大学入試センター試験 / 拡大文字問題 / 点字問題 / 障害学生 / 情報検索 / 木パターン照合問題 / XPath / XML検索 / 拡張疑似木パターン照合問題 / XML / ビット並列アルゴリズム / 文字列パターン照合 / 木パターン照合 / 検索 / ビット並列 / 木パターン / パターン照合 / アルゴリズム / 数学認識 / 科学文書電子化 Less

Design of fast tree pattern matching algorithms using bit-parallelism on strings
- Principal Investigator
  
  YAMAMOTO Hiroaki
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Shinshu University
Embedding a Mathematical OCR Module into OCRopusPrincipal Investigator
- Principal Investigator
  
  OKAMOTO Masayuki
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Perception information processing/Intelligent robotics
- Research Institution
  Shinshu University
Research on High Accuracy Mathematical Formula Recognition and Development of Digitization System of Scientific Documents
- Principal Investigator
  
  SUZUKI Masakazo (SUZUKI Masakazu)
- Project Period (FY)
  2006 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Media informatics/Database
- Research Institution
  Kyushu University
Development of string matching algorithms with flexible functions and its applications
- Principal Investigator
  
  YAMAMOTO Hiroaki
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Shinshu University
Research on the digitization system of scientific documents
- Principal Investigator
  
  SUZUKI Masakazu
- Project Period (FY)
  2002 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  情報システム学(含情報図書館学)
- Research Institution
  KYUSHU UNIVERSITY
Improvement and performance evaluation of the mathematical formula recognition method for digitalization of mathematical journalsPrincipal Investigator
- Principal Investigator
  
  OKAMOTO Masayuki
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  情報システム学(含情報図書館学)
- Research Institution
  Shinshu University
Development and Evaluation of Adaptive Computer-Based Test for Students with Disabilities in the National Center Test for University Admissions
- Principal Investigator
  
  FUJIYOSHI Mamoru
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Educational technology
- Research Institution
  The National Center for University Entrance Examinations
  National Center Test for University Admissions
Research on High Performance Mathematical Expression Recognition Method for Digitization of Scientific DocumentsPrincipal Investigator
- Principal Investigator
  
  OKAMOTO Masayuki
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  情報システム学(含情報図書館学)
- Research Institution
  Shinshu University

All 2011 2006 2005 2004 2003 2002

All Journal Article Presentation

[Journal Article] Performance Evaluation of a Mathematical Formula Recognition System with a large scale of printed formula images2006
- Author(s)
  Kazuki Ashida, Masayuki Okamoto, Hiroki Imai
- Journal Title
  
  proceedings of the 2nd International Workshop on Document Image Analysis for Libraries,Lyon
  
  Pages: 320-311
- NAID
  110003314500
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14380182
[Journal Article] Performance Evaluation of a Mathematical Formula Recognition System with a large scale of printed formula images2006
- Author(s)
  Kazuki Ashida, Masayuki Okamoto, Hiroki Imai
- Journal Title
  
  Proceedings of the 2nd International Workshop on Document Image Analysis for Libraries, Lyon
  
  Pages: 320-331
- NAID
  110003314500
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14380182
[Journal Article] Bit-Parallel Algorithms for Translating Regular Expressions into NFAs2006
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  IEICE Trans.Inf.& Syst. (accepted)
- NAID
  110007519485
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] 大量の印刷数式画像を用いた数式認識システムの性能評価2005
- Author(s)
  北原卓, 仲正幸, 岡本正行
- Journal Title
  
  電子情報通信学会技術研究報告 PRMU2004-212-230
  
  Pages: 31-36
- NAID
  110003314500
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14580446
[Journal Article] Experimental Evaluation of Automata- based Extended Regular Expression Matching Algorithms2005
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  Proc.of 16^<th> Australasian Workshop on Computation and Algorithms (AWOCA 2005)
  
  Pages: 355-367
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] Experimental Evaluation of Automata-based Extended Regular Expression Matching Algorithms2005
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  Proc. of 16^<th> Australasian Workshop on Computation and Algorithms (AWOCA2005)
  
  Pages: 355-367
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] Experimental Evaluation of Automata-based Extended Regular Expression Matching Algorithms2005
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  Proc.of 16^<th> Australasian Workshop on Computation and Algorithms (AWOCA2005)
  
  Pages: 355-367
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] Bit-Parallel Translation into Small NFAs and Fast Matching Algorithm for Regular Expressions2005
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  Proc.of 2005 Korea-Japan Joint Workshop on Algorithms and Computation (WAAC 2005)
  
  Pages: 76-83
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] Bit-Parallel Translation into Small NFAs and Fast Matching Algorithm for Regular Expressions2005
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  Proc. of 2005 Korea-Japan Joint Workshop on Algorithms and Computation (WAAC2005)
  
  Pages: 76-83
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] Bit-Parallel Translation into Small NFAs and Fast Matching Algorithm for Regular Expressions2005
- Author(s)
  H.Yamamoto, M.Okamoto, T.Miyazaki
- Journal Title
  
  Proc.of 2005 Korea-Japan Joint Workshop on Algorithm and Computation (WAAC2005)
  
  Pages: 76-83
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] 正規表現をNFAに変換するためのアルゴリズムについて2004
- Author(s)
  山本博章, 宮崎敬, 岡本正行
- Journal Title
  
  第3回情報科学技術フォーラム論文集
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] 正規表現をNFAに変換するためのビット並列アルゴリズム2004
- Author(s)
  山本博章, 宮崎敬, 岡本正行
- Journal Title
  
  電子情報通信学会技術報告 COMP2004-27
  
  Pages: 9-15
- Data Source
  KAKENHI-PROJECT-15500006
[Journal Article] 数式認識システムについての一考察2003
- Author(s)
  中塚翼, 仲正幸, 岡本正行
- Journal Title
  
  「科学情報の自動処理とその応用をめぐる諸問題」研究集会資料
  
  Pages: 30-33
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14580446
[Journal Article] 数式認識性能評価用データベースの作成2002
- Author(s)
  中塚翼, 仲正幸, 岡本正行
- Journal Title
  
  科学技術分野における電子的情報処理に関する研究集会資料
  
  Pages: 11-13
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14580446
[Presentation] Embedding a mathematical OCR module into OCRopus2011
- Author(s)
  S.Yamazaki, F.Furukori, Q.Zhao, K.Shirai, M.Okamoto
- Organizer
  IAPR Inter.Conf.on Document Analysis and Recognition (ICDAR)
- Place of Presentation
  北京,中国
- Year and Date
  2011-09-20
- Data Source
  KAKENHI-PROJECT-21500163
[Presentation] OCRソフトOCRopusへの数式認識モジュールの組込みの検討2011
- Author(s)
  山崎、古郡、趙、白井、岡本
- Organizer
  信学技報PRMU2010-267, vo1.110, pp.177-182
- Place of Presentation
  産総研(つくば)
- Year and Date
  2011-03-12
- Data Source
  KAKENHI-PROJECT-21500163
[Presentation] Embedding a mathematical OCR module into OCRopus2011
- Author(s)
  S. Yamazaki, F. Furukori, Q. Zhao, K. Shirai, M. Okamoto
- Organizer
  Document Analysis and Recognition
- Place of Presentation
  Proc of IAPR Inter
- Year and Date
  2011-09-19
- Data Source
  KAKENHI-PROJECT-21500163
[Presentation] 合焦位置を起点とした文字列抽出の一検討2011
- Author(s)
  王、馬、白井、岡本
- Organizer
  信学技報PRMU2010-286, vol.110, pp.287-292
- Place of Presentation
  産総研(つくば)
- Year and Date
  2011-03-12
- Data Source
  KAKENHI-PROJECT-21500163
[Presentation] OCRソフトOCRopusへの数式認識モジュールの組込みの検討2011
- Author(s)
  山崎慎平,古郡史啓,趙勤政,白井啓一郎,岡本正行
- Organizer
  信学技報PRMU2010-267
- Year and Date
  2011-03-11
- Data Source
  KAKENHI-PROJECT-21500163
[Presentation] 合焦位置を起点とした文字列抽出の一検討2011
- Author(s)
  王済凱,馬国峰,白井啓一郎,岡本正行
- Organizer
  信学技報PRMU2010-286
- Year and Date
  2011-03-11
- Data Source
  KAKENHI-PROJECT-21500163

1. SUZUKI Masakazo (20112302)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
2. MIYAZAKI Takashi (10141889)

# of Collaborated Projects: 2 results

# of Collaborated Products: 9 results
3. UCHIDA Seiichi (70315125)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. TAMARI Fumikazu (70036937)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. FUJIMOTO Mitsushi (20270241)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. KANAHORI Toshihiro (00352568)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. YAMAMOTO Hiroaki (10182643)

# of Collaborated Projects: 2 results

# of Collaborated Products: 9 results
8. SHIRAI Keiichiro (00447723)

# of Collaborated Projects: 2 results

# of Collaborated Products: 6 results
9. OHTAKE Nobuyuki (10223851)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
10. 藤芳明生 (00323212)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
11. YAMAGUCHI Katsuhito (00182428)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. FUJIYOSHI Mamoru (20190085)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. KIMURA Shinji (40225040)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 前川眞一 (70190288)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 石塚智一 (00168238)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 黄瀬浩一 (80224939)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

OKAMOTO Masayuki 岡本 正行

Research Projects

Research Products

Co-Researchers

Design of fast tree pattern matching algorithms using bit-parallelism on strings

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Embedding a Mathematical OCR Module into OCRopusPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Research on High Accuracy Mathematical Formula Recognition and Development of Digitization System of Scientific Documents

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development of string matching algorithms with flexible functions and its applications

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Research on the digitization system of scientific documents

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Improvement and performance evaluation of the mathematical formula recognition method for digitalization of mathematical journalsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development and Evaluation of Adaptive Computer-Based Test for Students with Disabilities in the National Center Test for University Admissions

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Research on High Performance Mathematical Expression Recognition Method for Digitization of Scientific DocumentsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Performance Evaluation of a Mathematical Formula Recognition System with a large scale of printed formula images2006

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] Performance Evaluation of a Mathematical Formula Recognition System with a large scale of printed formula images2006

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] Bit-Parallel Algorithms for Translating Regular Expressions into NFAs2006

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] 大量の印刷数式画像を用いた数式認識システムの性能評価2005

Author(s)

Journal Title

NAID

Description

Data Source

[Journal Article] Experimental Evaluation of Automata- based Extended Regular Expression Matching Algorithms2005

Author(s)

Journal Title

Description

OKAMOTO Masayuki 岡本正行