Publications

* equal contribution. Full list also on Google Scholar.

Journal Articles

Payoff Scaling Shapes Cooperation in LLM Agents across Languages
Interface Focus Royal Society journal, accepted 2026
Trung-Kiet Huynh, Duy-Minh Dao-Sy, Thanh-Bang Cao, Phong-Hao Le, Hong-Dan Nguyen, Phu-Quy Nguyen-Lam, Minh-Luan Nguyen-Vo, Hong-Phat Pham, Phu-Hoa Pham, Thien-Kim Than, Chi-Nguyen Tran, Huy Tran, Gia-Thoai Tran-Le, Alessio Buscemi, Le Hong Trang, The Anh Han
How the size of the stake and the prompt language change the strategies LLM agents play in cooperation dilemmas. Earlier title: More at Stake.

Conference Papers

MIST: Reliable Streaming Decision Trees for Online Class-Incremental Learning via McDiarmid Bound
NeurIPS 2026 Main Track Co-first author
Phu-Hoa Pham*, Chi-Nguyen Tran*, Phu-Quy Nguyen-Lam, Duy-Minh Dao-Sy, Trung-Kiet Huynh, Long Tran-Thanh
Streaming decision trees that learn new classes online from a data stream, with split decisions backed by a McDiarmid concentration bound and knowledge inherited across splits.
Unlocking Compositional Generalization in Continual Few-Shot Learning
NeurIPS 2026 Main Track
Phu-Quy Nguyen-Lam, Phu-Hoa Pham, Duy-Minh Dao-Sy, Chi-Nguyen Tran, Trung-Kiet Huynh, Long Tran-Thanh
Holistic training with a slot-attention router, then compositional inference that scores queries part by part, so a continual few-shot learner generalizes to unseen combinations of known parts.
Training-Free Cultural Alignment of Large Language Models via Persona Disagreement
NeurIPS 2026 Main Track
Trung-Kiet Huynh, Duy-Minh Dao-Sy, Tuan Nguyen, Chi-Nguyen Tran, Phu-Hoa Pham, Phu-Quy Nguyen-Lam, The Anh Han, Long Tran-Thanh
Aligns a frozen LLM to the moral preferences of a country without training: country-conditioned personas vote, and only the decisions they agree on are kept.
Visual Robustness and Neural Alignment in a Shared Foraging Task: The Mouse vs. AI Benchmark
NeurIPS 2026 Evaluations & Datasets Track
Marius Schneider, Joe S. Canzano, Yuchen Hou, Jing Peng, A. Deepu, U. Karan, Phu-Hoa Pham, Chi-Nguyen Tran, Duy-Minh Dao-Sy, Phu-Quy Nguyen-Lam, Trung-Kiet Huynh, S. Azeglio, Spencer L. Smith, Michael Beyeler
The benchmark paper of the NeurIPS 2025 Mouse vs. AI competition, co-authored with the organizers as a member of the first-place team.

Competition, Challenge & Shared-Task Papers

HCMUSDroneBoys at SemEval-2026 Task 11: Asymmetric Counterfactual Debiasing and Rank-Sensitive Logical Invariance Adaptation for Syllogistic Reasoning
SemEval 2026 Shared Task Co-first author
Chi-Nguyen Tran*, Duy-Minh Dao-Sy*, Trung-Kiet Huynh, Phu-Hoa Pham, Phu-Quy Nguyen-Lam
1st Place (tied), Task 11 Subtask 1, perfect score 100.0
Separates logical form from content so an LLM judges whether a syllogism is valid, not whether it sounds plausible: structure-disentangled prompting, valid-to-invalid counterfactual augmentation, and high-rank QLoRA adaptation.
HCMUS_RepeatedGames at SemEval-2026 Task 12: CausalRAG: Synergizing Causal Graph Retrieval and Extended LoRA for Abductive Reasoning
SemEval 2026 Shared Task Co-first author
Duy-Minh Dao-Sy*, Chi-Nguyen Tran*, Trung-Kiet Huynh*, Phu-Quy Nguyen-Lam, Phu-Hoa Pham
Tied 5th, Task 12 (score 0.90)
Finds the most plausible cause of a real event from retrieved documents: hybrid BM25 plus dense retrieval for causal keywords, then LoRA on both attention and MLP layers of a 32B model with 0.81% trainable parameters.
MEMRES: A Memory-Augmented Resolver with Confidence Cascade for Agentic Python Dependency Resolution
FSE 2026 AIWare Competition Co-first author
Chi-Nguyen Tran*, Duy-Minh Dao-Sy*, Trung-Kiet Huynh*, Phu-Hoa Pham, Phu-Quy Nguyen-Lam, Vu Nguyen
Winner, FSE-AIWare 2026 Agentic Python Dependency Resolution Competition
An agentic resolver that repairs broken Python environments with a self-evolving memory, a confidence cascade over version candidates, and a build-and-reflect loop.
RoadFury at the ICST 2026 Tool Competition: Self-Driving Car Testing Track
ICST 2026 Tool Competition Co-first author
Chi-Nguyen Tran*, Duy-Minh Dao-Sy*, Trung-Kiet Huynh*, Phu-Hoa Pham, Phu-Quy Nguyen-Lam
A test prioritization tool for self-driving-car simulation: a Transformer reads the full geometric sequence of each road, so failure-revealing tests run first. APFD 0.804, above the prior best of 0.781.
Early-Stage Prediction of Review Effort in AI-Generated Pull Requests
MSR 2026 Mining Challenge
Duy-Minh Dao-Sy, Trung-Kiet Huynh, Phu-Quy Nguyen-Lam, Phu-Hoa Pham, Chi-Nguyen Tran, Dinh-Ha-Duong Nguyen, Bao-Tran Truong
Predicts at creation time which agent-authored pull requests will cost maintainers the most review effort; flagging the top 20% catches 69% of total effort.
JHARNA-MT: A Copy-Augmented Hybrid of LoRA-Tuned NLLB and Lexical SMT with Minimum Bayes Risk Decoding for Low-Resource Indic Languages
MMLoSo 2025 IJCNLP-AACL Workshop Co-first author
Trung-Kiet Huynh*, Duy-Minh Dao-Sy*, Chi-Nguyen Tran*, Phu-Quy Nguyen-Lam, Phu-Hoa Pham, Dinh-Ha-Duong Nguyen, Dien Dinh, Hong-Buu-Long Nguyen
2nd Place, MMLoSo 2025 Language Challenge
Retrieval, LoRA-tuned NLLB and a lexical SMT branch, combined by Minimum Bayes Risk decoding for low-resource Indic translation.
Systematic Evaluation of Machine Learning and Transformer-Based Methods for Scientific Telescope Literature Classification
WASP 2025 IJCNLP-AACL Workshop Co-first author
Trung-Kiet Huynh*, Duy-Minh Dao-Sy*, Chi-Nguyen Tran*, Phu-Quy Nguyen-Lam, Phu-Hoa Pham, Dinh-Ha-Duong Nguyen, Dien Dinh, Hong-Buu-Long Nguyen
2nd Place, TRACS Shared Task
Classical ML against transformer models for classifying telescope-related scientific literature.
DRAGON: Dual-Encoder Retrieval with Guided Ontology Reasoning for Medical Normalization
ALTA 2025 Shared Task
Duy-Minh Dao-Sy, Phu-Quy Nguyen-Lam, Phu-Hoa Pham, Chi-Nguyen Tran, Trung-Kiet Huynh, Bao-Tran Truong
2nd Place, ALTA 2025 Shared Task
Cascaded dual-encoder retrieval plus ontology reasoning to normalize adverse drug events to MedDRA terms.