Publications
A grouped list of publications from my Google Scholar profile and selected project outputs in handwritten mathematical expression recognition, document analysis, automatic scoring, educational AI, and applied computer vision. Selected items link to publication posts with authors, abstract, key contributions, paper/code access, and comments.
Handwritten Mathematical Expression Recognition
Edge-Aware Relation Prediction for Symbol-Level Structure Refinement in Online Handwritten Mathematical Expressions
DAS Workshop, 2026 Workshop · Thanh-Nghia Truong, Hung Tuan Nguyen, Cuong Tuan Nguyen, Masaki Nakagawa · Accepted to DAS 2026 workshop
A Survey on Handwritten Mathematical Expression Recognition: The Rise of Encoder-Decoder and GNN Models
Pattern Recognition, 2024 Journal · Thanh-Nghia Truong, Cuong Tuan Nguyen, Richard Zanibbi, Harold Mouchère, Masaki Nakagawa
ICDAR 2023 CROHME: Competition on Recognition of Handwritten Mathematical Expressions
ICDAR, 2023 Conference · Yejing Xie, Harold Mouchère, Foteini Simistira Liwicki, Sumit Rakesh, Rajkumar Saini, Masaki Nakagawa, Cuong Tuan Nguyen, Thanh-Nghia Truong
Syntactic Data Generation for Handwritten Mathematical Expression Recognition
Pattern Recognition Letters, 2022 Journal · Thanh-Nghia Truong, Cuong Tuan Nguyen, Masaki Nakagawa
Global Context for Improving Recognition of Online Handwritten Mathematical Expressions
ICDAR, 2021 Conference · Cuong Tuan Nguyen, Thanh-Nghia Truong, Hung Tuan Nguyen, Masaki Nakagawa
A Transformer-Based Math Language Model for Handwritten Math Expression Recognition
ICDAR, 2021 Conference · Huy Quang Ung, Cuong Tuan Nguyen, Hung Tuan Nguyen, Thanh-Nghia Truong, Masaki Nakagawa
Relation-Based Representation for Handwritten Mathematical Expression Recognition
ICDAR Workshops, 2021 Workshop · Thanh-Nghia Truong, Huy Quang Ung, Hung Tuan Nguyen, Cuong Tuan Nguyen, Masaki Nakagawa
Learning Symbol Relation Tree for Online Handwritten Mathematical Expression Recognition
ACPR / LNCS, 2021–2022 Conference · Thanh-Nghia Truong, Hung Tuan Nguyen, Cuong Tuan Nguyen, Masaki Nakagawa
Online Handwritten Mathematical Symbol Segmentation and Recognition with Bidirectional Context
ICFHR, 2020 Conference · Cuong Tuan Nguyen, Thanh-Nghia Truong, Quang Huy Ung, Masaki Nakagawa
Improvement of End-to-End Offline Handwritten Mathematical Expression Recognition by Weakly Supervised Learning
ICFHR, 2020 Conference · Thanh-Nghia Truong, Cuong Tuan Nguyen, Khanh Minh Phan, Masaki Nakagawa
Automatic Scoring and Educational AI
Hierarchical Stroke-Level Clustering and Step-Level Segmentation for Automatic Scoring of Geometric Construction Answers with an Electronic Drawing Compass
ICDAR, 2026 Conference · Accepted for presentation
Automatic Scoring System for Digitized Handwritten Answers
IEEE Access, 2026 Journal · Tomo Asakura, Hung Tuan Nguyen, Thanh-Nghia Truong, Yoichi Tsuchida, Takahiro Yamamoto, Hiroshi Miyazawa, Nam Tuan Ly, Masato Nemoto, Masamitsu Ito, Toshihiko Horie, Keiichi Kaneko, Masaki Nakagawa
A Moodle Plugin for Handwritten Answer Input, Management, and Recognition Supporting Japanese, English, Mathematical, and Chemical Formulas
A Digital Compass Approach to Tracking Geometric Constructions for Formative Assessment
CADGME, 2025 Conference · Fumiko Yasuno, Tomo Asakura, Hiroshi Miyazawa, Masamitsu Ito, Toshihiko Horie, Thanh-Nghia Truong, Masaki Nakagawa
Automated Recognition and Scoring of Handwritten Short Answer: Insights from Japanese Elementary and Junior High Schools
ICDAR, 2025 Conference · Hung Tuan Nguyen, Thanh-Nghia Truong, Nam Tuan Ly, Masaki Nakagawa, Toshihiko Horie
Content-Based Similarity for Automatic Scoring of Handwritten Descriptive Answers
ICDAR, 2024 Conference · Thanh-Nghia Truong, Hung Tuan Nguyen, Nam Tuan Ly, Toshihiko Horie, Masaki Nakagawa
Two Experiments for Automatic Scoring of Handwritten Descriptive Answers
DAS / LNCS, 2024 Conference Best Paper Award · Masaki Nakagawa, Hung Tuan Nguyen, Thanh-Nghia Truong, Nam Tuan Ly, Cuong Tuan Nguyen, Haruki Oka, Tsunenori Ishioka, Tomo Asakura, Hiroshi Miyazawa, Takahiro Yamamoto, Toshihiko Horie, Fumiko Yasuno
Digitalizing Educational Workbooks and Collecting Handwritten Answers for Automatic Scoring
iTextbooks'23 / AIED Workshop, 2023 Workshop · Tomo Asakura, Hung Tuan Nguyen, Thanh-Nghia Truong, Nam Tuan Ly, Cuong Tuan Nguyen, Hiroshi Miyazawa, Yoichi Tsuchida, Takahiro Yamamoto, Masamitsu Ito, Toshihiko Horie, Fumiko Yasuno, Tsunenori Ishioka, Kokoro Kobayashi, Ikuko Shimizu, Masaki Nakagawa
Enhancing LMS-Based Assessment with Handwriting Input: The Design and Implementation of HAIMR
CADGME, 2025 Conference · Thanh-Nghia Truong, Hung Tuan Nguyen, Masaki Nakagawa
Technical Reports and Domestic Presentations
Automatic Scoring of Answers using a Digital Compass for Geometric Construction Problems
Pattern Recognition and Media Understanding (PRMU), PRMU2025-53, pp. 63-67, 2026 Technical report · Thanh-Nghia Truong, Hung Tuan Nguyen, Nam Tuan Ly, Yoichi Tsuchida, Hiroshi Miyazawa, Tomo Asakura, Masamitsu Ito, Toshihiko Horie, Fumiko Yasuno, Masaki Nakagawa
Contrastive Learning Network for Zero-Shot Automatic Scoring of Very Short Answers
Pattern Recognition and Media Understanding (PRMU), PRMU2025-58, pp. 90-95, 2026 Technical report · Nam Tuan Ly, Hung Tuan Nguyen, Thanh-Nghia Truong, Masaki Nakagawa
Design Goals and Principles of an Automatic Scoring System for Handwritten Answers on Electronic Paper
IEICE Technical Report (ET), ET2024-65, pp. 12-19, 2025 Technical report · Masaki Nakagawa, Hung Tuan Nguyen, Thanh-Nghia Truong, Nam Tuan Ly, Cuong Tuan Nguyen, Tomo Asakura, Hiroshi Miyazawa, Toshihiko Horie
Automatic Scoring for Handwritten Answers from Elementary to Junior High School Grades in Japan
IEICE Technical Report (ET), ET2024-77, pp. 90-97, 2025 Technical report · Hung Tuan Nguyen, Thanh-Nghia Truong, Nam Tuan Ly, Masaki Nakagawa, Toshihiko Horie
Integrating Handwriting Input Interface and Recognition into Moodle for Handwritten Answers in Japanese, English, Mathematical and Chemical Formulas
IEICE Technical Report (ET), ET2024-78, pp. 98-105, 2025 Technical report · Thanh-Nghia Truong, Hung Tuan Nguyen, Masaki Nakagawa, Fumiko Yasuno
ASHITA: An Automatic and Semi-automatic Scoring System for Handwritten Answers of Digital Ink
IEICE Technical Report (ET), vol. 124, no. 388 (ET2024 63-87), 2025 Technical report · Ryo Asakura, Hiroshi Miyazawa, Yoichi Tsuchida, Takahiro Yamamoto, Masato Nemoto, Masamitsu Ito, Toshihiko Horie, Hung Tuan Nguyen, Thanh-Nghia Truong, Masaki Nakagawa, et al.
Reference Answers Description for Automatic Scoring of Handwritten Geometrical Figure Answers
Japanese Society for Educational Technology (JSET) Spring Conference, 2024 Conference · Hiroshi Miyazawa, Tomo Asakura, Hung Tuan Nguyen, Thanh-Nghia Truong, Nam Tuan Ly, Fumiko Yasuno, Toshihiko Horie, Masaki Nakagawa
Thesis and Earlier Work
Handwritten Mathematical Expression Recognition by Deep Neural Networks
Ph.D. thesis, 2022 Thesis · Thanh-Nghia Truong
Medical Images Sequence Normalization and Augmentation: Improve Liver Tumor Segmentation from Small Dataset
M.Sc. thesis, 2018 Thesis · Thanh-Nghia Truong · Related paper presented at CRC 2018, Penang, Malaysia, with Vu-Duy Dam and Thanh-Sach Le
Building an Online Video Streaming System for E-learning
B.Sc. thesis, 2016 Thesis · Thanh-Nghia Truong · Developed an online video streaming system for e-learning; the system has been used to support teaching at HCMUT
Profiles
For the full and updated list, see Google Scholar, researchmap, and ResearchGate.