Masaki Nakagawa

Cheng Cheng, Bilan Zhu, Masaki Nakagawa: Digital Ink Search Based on Character-Recognition Candidates Compared with Feature-Matching-Based Approach. IEICE Transactions 96-D(3): 681-689 (2013)

Jinfeng Gao, Bilan Zhu, Masaki Nakagawa: Development of a Robust and Compact On-Line Handwritten Japanese Text Recognizer for Hand-Held Devices. IEICE Transactions 96-D(4): 927-938 (2013)

Latsamy Saysourinhong, Bilan Zhu, Masaki Nakagawa: Online Handwritten Lao Character Recognition by MRF. IEICE Transactions 95-D(6): 1603-1609 (2012)

Tomohisa Matsushita, Cheng Cheng, Yujiro Murata, Bilan Zhu, Masaki Nakagawa: Effect of Text/Non-text Classification for Ink Search Employing String Recognition. Document Analysis Systems 2012: 230-234

Truyen Van Phan, Bilan Zhu, Masaki Nakagawa: Collecting Handwritten Nom Character Patterns from Historical Document Pages. Document Analysis Systems 2012: 344-348

Akihito Kitadai, Masaki Nakagawa, Hajime Baba, Akihiro Watanabe: Similarity Evaluation and Shape Feature Extraction for Character Pattern Retrieval to Support Reading Historical Documents. Document Analysis Systems 2012: 359-363

Jinfeng Gao, Bilan Zhu, Masaki Nakagawa: Complexity reduction with recognition rate maintained for online handwritten Japanese text recognition. DRR 2012

Tetsuya Watanabe, Toshimitsu Yamaguchi, Masaki Nakagawa: Development of Software for Automatic Creation of Embossed Graphs - Comparison of Non-visual Data Presentation Methods and Development Up-to-Date. ICCHP (1) 2012: 174-181

Bilan Zhu, Masaki Nakagawa: Building a Compact On-Line MRF Recognizer for Large Character Set Using Structured Dictionary Representation and Vector Quantization Technique. ICFHR 2012: 155-160

Cheng Cheng, Bilan Zhu, Masaki Nakagawa: Comparing Character Recognition Based Approach with Feature Matching Based Approach for Digital Ink Search. ICFHR 2012: 548-553

Bilan Zhu, Masaki Nakagawa: A MRF model with parameter optimization by CRF for on-line recognition of handwritten Japanese characters. DRR 2011: 1-10

Xiang-Dong Zhou, Fei Yin, Da-Han Wang, Qiu-Feng Wang, Masaki Nakagawa, Cheng-Lin Liu: Transcript Mapping for Handwritten Text Lines Using Conditional Random Fields. ICDAR 2011: 58-62

Daqing Wang, Bilan Zhu, Masaki Nakagawa: A Digital Ink Recogntion Server for Handwritten Japanese Text. ICDAR 2011: 146-150

Bilan Zhu, Jinfeng Gao, Masaki Nakagawa: Objective Function Design for MCE-Based Combination of On-line and Off-line Character Recognizers for On-line Handwritten Japanese Text Recognition. ICDAR 2011: 594-598

Bilan Zhu, Masaki Nakagawa: On-line Handwritten Japanese Characters Recognition Using a MRF Model with Parameter Optimization by CRF. ICDAR 2011: 603-607

Bin Chen, Bilan Zhu, Masaki Nakagawa: Effects of Generating a Large Amount of Artificial Patterns for On-line Handwritten Japanese Character Recognition. ICDAR 2011: 663-667

Pasitthideth Luangvilay, Bilan Zhu, Masaki Nakagawa: An On-line Handwritten Text Search Method Based on Directional Feature Matching. ICDAR 2011: 683-686

Truyen Van Phan, Jinfeng Gao, Bilan Zhu, Masaki Nakagawa: Effects of Line Densities on Nonlinear Normalization for Online Handwritten Japanese Character Recognition. ICDAR 2011: 834-838

Bilan Zhu, Masaki Nakagawa: A Coarse Classifier Construction Method from a Large Number of Basic Recognizers for On-line Recognition of Handwritten Japanese Characters. ICDAR 2011: 1090-1094

Bilan Zhu, Masaki Nakagawa: Trie-Lexicon-Driven Recognition for On-line Handwritten Japanese Disease Names Using a Time-Synchronous Method. ICDAR 2011: 1130-1134

Cheng Cheng, Bilan Zhu, Masaki Nakagawa: A Discriminative Model for On-line Handwritten Japanese Text Retrieval. ICDAR 2011: 1285-1288

Bilan Zhu, Xiang-Dong Zhou, Cheng-Lin Liu, Masaki Nakagawa: A robust model for on-line handwritten japanese text recognition. IJDAR 13(2): 121-131 (2010)

Jun Takakura, Akihito Kitadai, Masaki Nakagawa, Hajime Baba, Akihiro Watanabe: Techniques to Enhance Images for Mokkan Interpretation. ICFHR 2010: 358-362

Xiang-Dong Zhou, Da-Han Wang, Masaki Nakagawa, Cheng-Lin Liu: Error Reduction by Confusing Characters Discrimination for Online Handwritten Japanese Character Recognition. ICFHR 2010: 495-500

Takahisa Wada, Shunichi Ishiwata, Katsuyuki Kimura, Keiri Nakanishi, Masato Sumiyoshi, Takashi Miyamori, Masaki Nakagawa: A VLIW Vector Media Coprocessor With Cascaded SIMD ALUs. IEEE Trans. VLSI Syst. 17(9): 1285-1296 (2009)

Hironori Egi, Shotaro Houri, Yukari Kato, Tatsuya Terada, Wataru Tsukahara, Masaki Nakagawa: Designing a Peer Reviewing Tool on Lecture Video with Handwritten Annotation. HCI (8) 2009: 31-39

Yugo Kobayashi, Tatsuya Terada, Toshiyuki Kondo, Masaki Nakagawa: Evaluation of a Functional Film Attached on Top of a Tablet PC. HCI (15) 2009: 257-263

Yukari Kato, Shotaro Houri, Wataru Tsukahara, Hironori Egi, Masaki Nakagawa: FD Commons: E-Teaching Portfolio to Enable an Ubiquitous Peer Reviewing Process. ICALT 2009: 334-336

Bilan Zhu, Xiang-Dong Zhou, Cheng-Lin Liu, Masaki Nakagawa: Effect of Improved Path Evaluation for On-line Handwritten Japanese Text Recognition. ICDAR 2009: 516-520

Xiang-Dong Zhou, Cheng-Lin Liu, Masaki Nakagawa: Online Handwritten Japanese Character String Recognition Using Conditional Random Fields. ICDAR 2009: 521-525

Cheng Cheng, Bilan Zhu, Xiaorong Chen, Masaki Nakagawa: Improvements in Keyword Search Japanese Characters within Handwritten Digital Ink. ICDAR 2009: 863-866

Bilan Zhu, Masaki Nakagawa: Segmentation of On-Line Freely Written Japanese Text Using SVM for Improving Text Recognition. IEICE Transactions 91-D(1): 105-113 (2008)

Masaki Nakagawa, Thanaruk Theeramunkong: Special Section on Knowledge, Information and Creativity Support System. IEICE Transactions 91-D(11): 2543-2544 (2008)

Akihito Kitadai, Jun Takakura, Masatoshi Ishikawa, Masaki Nakagawa, Hajime Baba, Akihiro Watanabe: Document Image Retrieval to Support Reading Mokkans. Document Analysis Systems 2008: 533-538

Yoshiro Imai, Keiichi Kaneko, Masaki Nakagawa: Design of a web-based visual simulator and its evaluation based on real computer education. SimuTools 2008: 44

Masaki Nakagawa, Thanaruk Theeramunkong: Special Section on Knowledge, Information and Creativity Support System. IEICE Transactions 90-D(10): 1491-1492 (2007)

Akihito Kitadai, Masaki Nakagawa: Prototype learning for structured pattern representation applied to on-line recognition of handwritten Japanese characters. IJDAR 10(2): 101-112 (2007)

Takeshi Sakurada, Yoichi Hagiwara, Hideto Oda, Masaki Nakagawa: A Japanese Text Input Interface Using On-Line Writing-Box-Free Handwriting Recognition and Kana-to-Kanji Conversion. HCI (8) 2007: 940-949

Narcís Lozano, Koichi Hirosawa, Masaki Nakagawa: A Scoring Tool for Electronic Paper Exams. ICALT 2007: 120-121

Yoshiro Imai, Keiichi Kaneko, Masaki Nakagawa: A Web-based Visual Simulator with Communication Support and its Application to Computer Architecture Education. ICALT 2007: 147-151

Yoshiro Imai, Keiichi Kaneko, Masaki Nakagawa: Application of a Visual Computer Simulator into Collaborative Learning. CIT 14(4): 267-273 (2006)

Hiroaki Tanaka, Yoshinori Takeuchi, Keishi Sakanushi, Masaharu Imai, Yutaka Ota, Nobu Matsumoto, Masaki Nakagawa: Pack instruction generation for media pUsing multi-valued decision diagram. CODES+ISSS 2006: 154-159

Bilan Zhu, Junko Tokuno, Masaki Nakagawa: Segmentation of On-Line Handwritten Japanese Text Using SVM for Improving Text Recognition. Document Analysis Systems 2006: 208-219

Junko Tokuno, Yiping Yang, Gleidson Pegoretti da Silva, Akihito Kitadai, Masaki Nakagawa: Pen-Coordinate Information Modeling by SCPR-based HMM for On-line Japanese Handwriting Recognition. ICPR (3) 2006: 348-351

Yiping Yang, Masaki Nakagawa: Layered Search Spaces for Accelerating Large Set Character Recognition. ICPR (2) 2006: 1006-1009

Yiping Yang, Bilan Zhu, Masaki Nakagawa: Structuring Search Space for Accelerating Large Set Character Recognition. IEICE Transactions 88-D(8): 1799-1806 (2005)

Masaki Nakagawa, Bilan Zhu, Motoki Onuma: A Model of On-line Handwritten Japanese Text Recognition Free from Line Direction and Writing Format Constraints. IEICE Transactions 88-D(8): 1815-1822 (2005)

Motoki Onuma, Akihito Kitadai, Bilan Zhu, Masaki Nakagawa: An On-line Handwritten Japanese Text Recognition System Free from Line Direction and Character Orientation Constraints. IEICE Transactions 88-D(8): 1823-1830 (2005)

Bilan Zhu, Masaki Nakagawa: Segmentation of On-line Handwritten Japanese Text of Arbitrary Line Direction by a Neural Network for Improving Text Recognition. ICDAR 2005: 157-161

Akihito Kitadai, Kei Saito, Daisuke Hachiya, Masaki Nakagawa: Support System for Archeologists to Read Scripts on Mokkans. ICDAR 2005: 1030-1034

Masaki Nakagawa, Kaoru Matsumoto: Collection of on-line handwritten Japanese character pattern databases and their analyses. IJDAR 7(1): 69-81 (2004)

Keisuke Mochida, Masaki Nakagawa: Separating Figures, Mathematical Formulas And Japanese Text From Free Handwriting In Mixed Online Documents. IJPRAI 18(7): 1173-1187 (2004)

Cheng-Lin Liu, Stefan Jäger, Masaki Nakagawa: Online Recognition of Chinese Characters: The State-of-the-Art. IEEE Trans. Pattern Anal. Mach. Intell. 26(2): 198-213 (2004)

Yiping Yang, Masaki Nakagawa: Improving the structuring search space method for accelerating large set character recognition. IWFHR 2004: 251-256

Takao Kobayashi, Masaki Nakagawa: Pattern recognition by distributed coding: test and analysis of the power space similarity method. IWFHR 2004: 389-394

Hideto Oda, Akihito Kitadai, Motoki Onuma, Masaki Nakagawa: A search method for on-line handwritten text employing writing-box-free handwriting recognition. IWFHR 2004: 545-550

Masaki Nakagawa, Bilan Zhu, Motoki Onuma: A Formalization of On-line Handwritten Japanese Text Recognition free from Line Direction Constraint. ICPR (2) 2004: 359-362

Stefan Jäger, Cheng-Lin Liu, Masaki Nakagawa: The state of the art in Japanese online handwriting recognition compared to techniques in western handwriting recognition. IJDAR 6(2): 75-88 (2003)

Bilan Zhu, Masaki Nakagawa: Information encoding into and decoding from dot texture for active forms. ACM Symposium on Document Engineering 2003: 105-114

Shinya Kawakami, Yoko Sato, Masaki Nakagawa, Bipin Indurkhya: On Modeling Conceptual and Narrative Structure of Fairytales. EJC 2003: 248-265

Yiping Yang, Ondrej Velek, Masaki Nakagawa: Accelerating Large Character Set Recognition using Pivots. ICDAR 2003: 262-267

Masaki Nakagawa, Motoki Onuma: On-line Handwritten Japanese Text Recognition free from Constrains on Line Direction and Character Orientation. ICDAR 2003: 519-523

Ondrej Velek, Masaki Nakagawa: Enhancing Efficiency and Speed of an Off-line Classifier Employed for On-line Handwriting Recognition of a Large Character Set. ICDAR 2003: 784-788

Taro Shimamura, Bilan Zhu, Atsushi Masuda, Motoki Onuma, Takeshi Sakurada, Masaki Nakagawa, Yasushi Kuronuma: A Prototype of an Active Form System. ICDAR 2003: 921-925

Stefan Jäger, Masaki Nakagawa: The Callpaper Concept: Turning Paper into Computer Terminals. ICDAR 2003: 1065-1069

Ondrej Velek, Stefan Jäger, Masaki Nakagawa: Accumulated-Recognition-Rate Normalization for Combining Multiple On/Off-Line Japanese Character Classifiers Tested on a Large Database. Multiple Classifier Systems 2003: 196-205

Ondrej Velek, Masaki Nakagawa, Cheng-Lin Liu: Vector-to-Image Transformation of Character Patterns for On-line and Off-line Recognition. Int. J. Comput. Proc. Oriental Lang. 15(2): 187-209 (2002)

Naoki Kato, Hiroshi Tanaka, Masaki Nakagawa: An e-mail environment with handwriting using the HandsDraw digital ink format. Systems and Computers in Japan 33(14): 101-109 (2002)

Ondrej Velek, Masaki Nakagawa: The Impact of Large Training Sets on the Recognition Rate of Offline Japanese Kanji Character Classifiers. Document Analysis Systems 2002: 106-110

Ondrej Velek, Masaki Nakagawa: Using Stroke-Number-Characteristics for Improving Efficiency of Combined Online and Offline Japanese Character Classifiers. Document Analysis Systems 2002: 115-118

Stefan Jäger, Masaki Nakagawa, Cheng-Lin Liu: Comparing on-line recognition of Japanese and western script in preparation for recognizing multi-language documents. IWFHR 2002: 84-89

Akihito Kitadai, Masaki Nakagawa: A learning algorithm for structured character pattern representation used in online recognition of handwritten Japanese characters. IWFHR 2002: 163-168

Ondrej Velek, Stefan Jäger, Masaki Nakagawa: A new warping technique for normalizing likelihood of multiple classifiers and its effectiveness in combined on-line/off-line japanese character recognition. IWFHR 2002: 177-182

Ondrej Velek, Cheng-Lin Liu, Stefan Jäger, Masaki Nakagawa: An Improved Approach to Generating Realistic Kanji Character Images from On-Line Characters and its Benefit to Off-Line Recognition Performance. ICPR (1) 2002: 588-

Cheng-Lin Liu, Masaki Nakagawa: Evaluation of prototype learning algorithms for nearest-neighbor classifier in application to handwritten character recognition. Pattern Recognition 34(3): 601-615 (2001)

Kaoru Matsumoto, Takahiro Fukushima, Masaki Nakagawa: Collection and Analysis of On-line Handwritten Japanese Character Patterns. ICDAR 2001: 496-500

Ondrej Velek, Masaki Nakagawa, Cheng-Lin Liu: Generating Realistic Kanji Character Images from On-Line Patterns. ICDAR 2001: 556-560

Stefan Jäger, Masaki Nakagawa: Two On-Line Japanese Character Databases in Unipen Format. ICDAR 2001: 566-

Takeshi Sakurada, Oichi Atoda, Masaki Nakagawa, Kiyoshi Kiyokawa: Algorithm Design and Prototype of a Low-Cost Electromagnetic Inductance Real-Time 6D-Tracker. ICOIN 2001: 726-

Cheng-Lin Liu, Masaki Nakagawa: Precise Candidate Selection for Large Character Set Recognition by Confidence Evaluation. IEEE Trans. Pattern Anal. Mach. Intell. 22(6): 636-642 (2000)

Takahiro Fukushima, Masaki Nakagawa: On-Line Writing-Box-Free Recognition of Handwritten Japanese Text Considering Character Size Variations. ICPR 2000: 2359-2363

Takeshi Sakurada, Hirokazu Bandoh, Masaki Nakagawa: Extension of the IdeaBoard for Educational Applications. HCI (1) 1999: 213-217

Yoji Maeda, Masaki Nakagawa: A Paper Based User Interface for Editing Documents. HCI (1) 1999: 243-246

Hiroshi Tanaka, Kenji Nakajima, Kazushi Ishigaki, Katsuhiko Akiyama, Masaki Nakagawa: Hybrid Pen-Input Character Recognition System based on Integration of Online-Offline Recognition. ICDAR 1999: 209-212

Takeshi Nagasaki, Tadashi Yanagida, Masaki Nakagawa: Relaxation-based Pattern Matching using Automatic Differentiation for Off-line Character Recognition. ICDAR 1999: 229-232

Cheng-Lin Liu, Masaki Nakagawa: Handwritten Numeral Recognition using Neural Networks: Improving the Accuracy by Discriminative Training. ICDAR 1999: 257-260

Cheng-Lin Liu, Masaki Nakagawa: Prototype Learning Algorithms for Nearest Neighbor Classifier with Application to Handwritten Character Recognition. ICDAR 1999: 378-381

Masaki Nakagawa, Tadashi Yanagida, Takeshi Nagasaki: An Off-line Character Recognition Method Employing Model-dependent Pattern Normalization by an Elastic Membrane Model. ICDAR 1999: 495-498

Rodney G. Webster, Masaki Nakagawa: A recognition based on a dynamic model. Pattern Recognition 31(2): 193-203 (1998)

Hirokazu Bandoh, Shin-ichi Sawada, Yuriko Fukao, Masaki Nakagawa: Learners Interface of a CAL System for Foreign Students to Learn Hiragana/Katakana Characters. APCHI 1998: 101-107

Toshio Okamoto, Masaki Nakagawa: A Case Base Reasoning System On The Internet For Knowledge Sharing / Reusing On Information Technology Education. Educating Professionals for Network-Centric Organisation 1998: 105-114

Yukiko Nishimura, Masaki Nakagawa: Form Input System by Pen Interface. HCI (2) 1997: 431-434

Hiroshi Tanaka, Naoki Kato, Masaki Nakagawa: Prototyping of Digital Ink E-Mail System Based on a Common Ink Format. HCI (2) 1997: 435-438

Masaki Nakagawa: Enhancing Handwriting Interfaces. HCI (2) 1997: 451-454

Kaori Oomika, Atsushi Naito, Masaki Nakagawa: Idea Memo PDA in Scalable Handwriting Interfaces. HCI (2) 1997: 455-458

Takeshi Nagasaki, Takayoshi Yamamoto, Masaki Nakagawa: The Behavior of Dynamic Relaxation in an Elastic Stroke Model for Character Recognition. ICDAR 1997: 16-22

Masaki Nakagawa, Takao Higashiyama, Yukiko Yamanaka, Shin-ichi Sawada, Levan Higashigawa, Katsuhiko Akiyama: On-line Handwritten Character Pattern Database Sampled in a Sequence of Sentences without any Writing Instructions. ICDAR 1997: 376-381

Masaki Nakagawa, Tsuyoshi Oguni, Takashi Yoshino: Human Interface and Applications on IdeaBoard. INTERACT 1997: 501-508

Tsuyoshi Oguni, Takashi Yoshino, Masaki Nakagawa: Demonstration of the IdeaBoard Interface and Applications. INTERACT 1997: 613-614

Masaki Nakagawa, Tu Van Le: Structural Learning of Character Patterns for On-Line Recognition of Hand-Written Japanese Characters. SSPR 1996: 180-188

Masaki Nakagawa, Kimiyoshi Machii, Naoki Kato, Toshio Souya: Lazy recognition as a principle of pen interfaces. INTERCHI Adjunct Proceedings 1993: 89-90

Masaki Nakagawa, Shinya Kazama, Takashi Satou, Natsuko Fukuda: Pen-Based Interfaces for Drawing Figures with 'Stationery Metaphors'. HCI (2) 1993: 1046-1051