All Stories

  1. Automated Recognition and Scoring of Handwritten Short Answer: Insights from Japanese Elementary and Junior High Schools

    Article • September 2025, Springer Science + Business Media

    Dr. Masaki Nakagawa, Dr Nam Tuan Ly

  2. Investigating the Influence of Automated Transcription Error Correction on Automated Grading for Handwritten Japanese Answers

    Article • January 2025, Springer Science + Business Media

    Dr. Masaki Nakagawa

  3. Similarity-Based Scoring Model for Handwritten Answers in Japanese Workbooks

    Article • January 2025, Springer Science + Business Media

    Dr. Masaki Nakagawa

  4. Answer Generation for Large-Scale Official Trial Tests in Japanese University Entrance Exams Using RAG

    Article • January 2025, Springer Science + Business Media

    Dr. Masaki Nakagawa

  5. A survey on handwritten mathematical expression recognition: The rise of encoder-decoder and GNN models

    Article • Pattern Recognition, September 2024, Elsevier

    Dr. NGHIA TRUONG THANH, Dr. Masaki Nakagawa

  6. Content-Based Similarity for Automatic Scoring of Handwritten Descriptive Answers

    Article • January 2024, Springer Science + Business Media

    Dr. NGHIA TRUONG THANH, Dr. Masaki Nakagawa, Dr Nam Tuan Ly

  7. Two Experiments for Automatic Scoring of Handwritten Descriptive Answers

    Article • January 2024, Springer Science + Business Media

    Dr. NGHIA TRUONG THANH, Dr. Masaki Nakagawa, Dr Nam Tuan Ly

  8. Error Correction of Japanese Character-Recognition in Answers to Writing-Type Questions Using T5

    Article • January 2024, Springer Science + Business Media

    Dr. Masaki Nakagawa

  9. Incremental Teacher Model with Mixed Augmentations and Scheduled Pseudo-label Loss for Handwritten Text Recognition

    Article • January 2023, Springer Science + Business Media

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  10. Learning Symbol Relation Tree for Online Handwritten Mathematical Expression Recognition

    Article • January 2022, Springer Science + Business Media

    Dr. NGHIA TRUONG THANH, Dr. Hung Nguyen, Dr. Masaki Nakagawa

  11. Handwriting Recognition and Automatic Scoring for Descriptive Answers in Japanese Language Tests

    Article • January 2022, Springer Science + Business Media

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  12. A Self-attention Based Model for Offline Handwritten Text Recognition

    Article • January 2022, Springer Science + Business Media

    Dr Nam Tuan Ly, Dr. Masaki Nakagawa

  13. A Transformer-Based Math Language Model for Handwritten Math Expression Recognition

    Article • January 2021, Springer Science + Business Media

    Dr. NGHIA TRUONG THANH, Dr. Hung Nguyen, Dr. Masaki Nakagawa

  14. Global Context for Improving Recognition of Online Handwritten Mathematical Expressions

    Article • January 2021, Springer Science + Business Media

    Dr. NGHIA TRUONG THANH, Dr. Hung Nguyen, Dr. Masaki Nakagawa

  15. Relation-Based Representation for Handwritten Mathematical Expression Recognition

    Article • January 2021, Springer Science + Business Media

    Dr. NGHIA TRUONG THANH, Dr. Hung Nguyen, Dr. Masaki Nakagawa

  16. 2D Self-attention Convolutional Recurrent Network for Offline Handwritten Text Recognition

    Article • January 2021, Springer Science + Business Media

    Dr. Hung Nguyen, Dr Nam Tuan Ly, Dr. Masaki Nakagawa

  17. A-VLAD: An End-to-End Attention-Based Neural Network for Writer Identification in Historical Documents

    Article • January 2021, Springer Science + Business Media

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  18. GSSF: A Generative Sequence Similarity Function Based on a Seq2Seq Model for Clustering Online Handwritten Mathematical Answers

    Article • January 2021, Springer Science + Business Media

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  19. Recurrent Neural Network Transducer for Japanese and Chinese Offline Handwritten Text Recognition

    Article • January 2021, Springer Science + Business Media

    Dr. Hung Nguyen, Dr Nam Tuan Ly, Dr. Masaki Nakagawa

  20. Temporal Classification Constraint for Improving Handwritten Mathematical Expression Recognition

    Article • January 2021, Springer Science + Business Media

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  21. An attention-based row-column encoder-decoder model for text recognition in Japanese historical documents

    Article • Pattern Recognition Letters, August 2020, Elsevier

    Dr Nam Tuan Ly, Dr. Masaki Nakagawa

  22. Nom document digitalization by deep convolution neural networks

    Article • Pattern Recognition Letters, May 2020, Elsevier

    Dr. Masaki Nakagawa

  23. CNN based spatial classification features for clustering offline handwritten mathematical expressions

    Article • Pattern Recognition Letters, March 2020, Elsevier

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  24. Hand-Drawn Object Detection for Scoring Wartegg Zeichen Test

    Article • January 2020, Springer Science + Business Media

    Dr Nam Tuan Ly, Dr. Masaki Nakagawa

  25. Evaluation of Secure Pad Resilient to Shoulder Hacking

    Article • January 2020, Springer Science + Business Media

    Dr. Masaki Nakagawa

  26. Pattern generation strategies for improving recognition of Handwritten Mathematical Expressions

    Article • Pattern Recognition Letters, December 2019, Elsevier

    Dr. Masaki Nakagawa

  27. Robust and real-time stroke order evaluation using incremental stroke context for learners to write Kanji characters correctly

    Article • Pattern Recognition Letters, April 2019, Elsevier

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  28. Text-independent writer identification using convolutional neural network

    Article • Pattern Recognition Letters, April 2019, Elsevier

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  29. Personal digital bodyguards for e-security, e-learning and e-health: A prospective survey

    Article • Pattern Recognition, September 2018, Elsevier

    Dr. Masaki Nakagawa

  30. A database of unconstrained Vietnamese online handwriting and recognition experiments by recurrent neural networks

    Article • Pattern Recognition, June 2018, Elsevier

    Dr. Hung Nguyen, Dr. Masaki Nakagawa

  31. Tens of Thousands of Nom Character Recognition by Deep Convolution Neural Networks

    Article • November 2017, ACM (Association for Computing Machinery)

    Dr. Masaki Nakagawa

  32. Attempts to recognize anomalously deformed Kana in Japanese historical documents

    Article • November 2017, ACM (Association for Computing Machinery)

    Dr. Hung Nguyen, Dr. Masaki Nakagawa, Dr Nam Tuan Ly

  33. Building a compact online MRF recognizer for large character set by structured dictionary representation and vector quantization technique

    Article • Pattern Recognition, March 2014, Elsevier

    Dr. Masaki Nakagawa

  34. A robust method for coarse classifier construction from a large number of basic recognizers for on-line handwritten Chinese/Japanese character recognition

    Article • Pattern Recognition, February 2014, Elsevier

    Dr. Masaki Nakagawa

  35. Building compact recognizer with recognition rate maintained for on-line handwritten Japanese text recognition

    Article • Pattern Recognition Letters, January 2014, Elsevier

    Dr. Masaki Nakagawa

  36. Training of an on-line handwritten Japanese character recognizer by artificial patterns

    Article • Pattern Recognition Letters, January 2014, Elsevier

    Dr. Masaki Nakagawa

  37. Handwritten Chinese/Japanese Text Recognition Using Semi-Markov Conditional Random Fields

    Article • IEEE Transactions on Pattern Analysis and Machine Intelligence, October 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr. Masaki Nakagawa

  38. Development of a Robust and Compact On-Line Handwritten Japanese Text Recognizer for Hand-Held Devices

    Article • IEICE Transactions on Information and Systems, January 2013, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  39. Digital Ink Search Based on Character-Recognition Candidates Compared with Feature-Matching-Based Approach

    Article • IEICE Transactions on Information and Systems, January 2013, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  40. Online Handwritten Lao Character Recognition by MRF

    Article • IEICE Transactions on Information and Systems, January 2012, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  41. A robust model for on-line handwritten japanese text recognition

    Article • International Journal on Document Analysis and Recognition (IJDAR), January 2010, Springer Science + Business Media

    Dr. Masaki Nakagawa

  42. Segmentation of On-Line Freely Written Japanese Text Using SVM for Improving Text Recognition

    Article • IEICE Transactions on Information and Systems, January 2008, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  43. Special Section on Knowledge, Information and Creativity Support System

    Article • IEICE Transactions on Information and Systems, October 2007, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  44. Prototype learning for structured pattern representation applied to on-line recognition of handwritten Japanese characters

    Article • International Journal on Document Analysis and Recognition (IJDAR), February 2007, Springer Science + Business Media

    Dr. Masaki Nakagawa

  45. A Model of On-line Handwritten Japanese Text Recognition Free from Line Direction and Writing Format Constraints

    Article • IEICE Transactions on Information and Systems, August 2005, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  46. An On-line Handwritten Japanese Text Recognition System Free from Line Direction and Character Orientation Constraints

    Article • IEICE Transactions on Information and Systems, August 2005, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  47. Structuring Search Space for Accelerating Large Set Character Recognition

    Article • IEICE Transactions on Information and Systems, August 2005, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr. Masaki Nakagawa

  48. SEPARATING FIGURES, MATHEMATICAL FORMULAS AND JAPANESE TEXT FROM FREE HANDWRITING IN MIXED ONLINE DOCUMENTS

    Article • International Journal of Pattern Recognition and Artificial Intelligence, November 2004, World Scientific Pub Co Pte Lt

    Dr. Masaki Nakagawa

  49. Evaluation of prototype learning algorithms for nearest-neighbor classifier in application to handwritten character recognition

    Article • Pattern Recognition, March 2001, Elsevier

    Dr. Masaki Nakagawa

  50. Precise candidate selection for large character set recognition by confidence evaluation

    Article • IEEE Transactions on Pattern Analysis and Machine Intelligence, June 2000, Institute of Electrical & Electronics Engineers (IEEE)

    Dr. Masaki Nakagawa

  51. A recognition based on a dynamic model

    Article • Pattern Recognition, February 1998, Elsevier

    Dr. Masaki Nakagawa