Manh Nguyen

PhD Student @ Applied Artificial Intelligence Initiative

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Hello, my name is Manh (Nguyễn Hữu Mạnh in Vietnamese). I am pursuing my PhD journey under the supervision of Dr. Hung Le and Prof. Sunil Gupta at A2I2, Deakin University. My thesis, “Towards Reliable Large Language Models for Open-ended Question Answering”, aims to explore how we can build more trustworthy AI systems that can handle open-ended questions effectively. Prior to my PhD, I spent five years applying machine learning to solve real-world data science challenges in industry.

I focus on practical NLP research, building robust and scalable systems that translate research ideas into real-world impact.

In my spare time, I enjoy doing sports (mostly running and swimming), traveling, and going on hikes with friends.

news

Nov 08, 2025 My first PhD paper, titled “Probabilities Are All You Need: A PRobability-Only Approach to Uncertainty Estimation in Large Language Models” has been accepted to AAAI 2026.
Sep 09, 2025 PhD confirmation outcome deemed satisfactory.
Apr 13, 2025 Completed my first Triathlon and placed in the top 8 age groups (30-34) at the Aqua Warriors Ha Long.
Apr 06, 2025 One paper, titled “Topic classification of vietnamese product reviews in e-commerce using PhoBERT” has been accepted to Journal of Marketing Analytics (Q1).
Oct 28, 2024 Commenced my PhD journey at A2I2, Deakin University, Australia.

selected papers

  1. AAAI-26
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    Probabilities Are All You Need: A Probability-Only Approach to Uncertainty Estimation in Large Language Models
    Manh Nguyen, Sunil Gupta, and Hung Le
    The 40th Annual AAAI Conference on Artificial Intelligence, 2025
  2. preprint
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    CAAD: Context-Aware Adaptive Decoding for Truthful Text Generation
    Manh Nguyen, Sunil Gupta, and Hung Le
    2025
  3. preprint
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    Distance Is All You Need: Radial Dispersion for Uncertainty Estimation in Large Language Models
    Manh Nguyen, Sunil Gupta, and Hung Le
    2025
  4. preprint
    Uncertainty-Guided Checkpoint Selection for Reinforcement Finetuning of Large Language Models
    Manh Nguyen, Dung Nguyen, Dai Do, and 2 more authors
    2025
  5. preprint
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    GRAD: Graph-Retrieved Adaptive Decoding for Hallucination Mitigation
    Manh Nguyen, Sunil Gupta, Dai Do, and 1 more author
    2025

latest posts

Sep 09, 2025 My PhD Confirmation
Apr 13, 2025 My first Triathlon
Oct 15, 2024 Looking back at My 20s