Neural Corpus Indexer
Generative retrieval that indexes a corpus end-to-end inside model weights.
Principal Research Scientist Tencent Hunyuan@Singapore
I am a Principal Research Scientist at Tencent Hunyuan, where I work on reinforcement learning (RL) for multimodal generation (video, image, text, etc.) and lead UniRL, our open-source RL framework for post-training foundation models toward agentic multimodal generation.
Concurrently, I am completing my PhD at the National University of Singapore, advised by Prof. Kenji Kawaguchi. Previously a PhD student at UIUC with Prof. Jingrui He, and B.S. in CS & Statistics at UIUC mentored by Prof. Jiawei Han.
My research builds systems that reason, plan, and learn from interaction — spanning long-context training, world models, LLM reasoning, autonomous agents, and reinforcement learning for unified multimodal generation.
Feel free to reach out if you'd like to chat about research or collaborate.
Generative retrieval that indexes a corpus end-to-end inside model weights.
Diagnosed why BFloat16 silently breaks RoPE under long context — and patched it.
A future-prediction objective for video — world models that anticipate events, not just tokens.
Parallel-decoding aggregation and demo-driven supervision for stronger reasoners.
Open-source deep-research agent scaling model, context, and interaction.
Open-source RL framework for post-training foundation models toward agentic multimodal generation.
Post-training foundation models with RL — toward agentic multimodal generation across modalities.
Improving how language models reason — through training, decoding, and inference-time aggregation.
Building agents that learn from interaction across web, mobile, and tool-use environments.
Scrutinizing high-quality data to improve model capacity, reliability, and trustworthiness.
NEWRecognized as an ICML 2026 Gold Reviewer.
NEWJoined Tencent Hunyuan as Principal Research Scientist; leading RL for agentic multimodal generation and the open-source UniRL framework.
NEWFour papers accepted to ICLR 2026: Think in Parallel, Answer as One; Prefix-Tuning+; Fostering Video Reasoning via Next-Event Prediction; and SeedPrints.
Joined MiroMind AI as a research intern; helping build MiroThinker, an open-source deep-research agent.
Our paper When Precision Meets Position: BFloat16 Breaks Down RoPE (AnchorAttention) accepted to TMLR.
Received the Research Achievement Award at the National University of Singapore.
Our diffusion-backdoor paper was selected as Oral at ICML 2024 (Top 2.37%).
Co-authored paper A Neural Corpus Indexer won the NeurIPS 2022 Best Paper Award (Top 7 / 3391).
left stripe = first / co-first author · * denotes joint first author
International Conference on Learning Representations ICLR 2026
International Conference on Learning Representations ICLR 2026
International Conference on Learning Representations ICLR 2026
International Conference on Learning Representations ICLR 2026
arXiv preprint 2509.23196 2025
North American Chapter of the Association for Computational Linguistics NAACL 2025
International Conference on Machine Learning ICML 2024 Oral · Top 2.37%
ACM International Conference on Web Search and Data Mining WSDM 2023
Transactions on Machine Learning Research TMLR 2023
Conference on Neural Information Processing Systems NeurIPS 2022
Conference on Neural Information Processing Systems NeurIPS 2022
International World Wide Web Conference WWW 2021
Conference on Neural Information Processing Systems NeurIPS 2022 Best Paper · Top 7/3391
Conference on Neural Information Processing Systems NeurIPS 2023 Spotlight · Top 3.06%
Conference on Neural Information Processing Systems NeurIPS 2025
Conference on Neural Information Processing Systems NeurIPS 2025
International Conference on Learning Representations ICLR 2026
Winter Conference on Applications of Computer Vision WACV 2026
Conference on Computer Vision and Pattern Recognition CVPR 2024
Principal Research Scientist
Tencent Hunyuan@Singapore
Leading RL post-training for agentic multimodal generation. Project lead on UniRL, our open-source training framework.
PhD Candidate, Computer Science
National University of Singapore•School of Computing
Advised by Prof. Kenji Kawaguchi.
Research Intern
MiroMind AI Lab•Singapore
Supervisor: Yifan Zhang. Building MiroThinker, an open-source deep-research agent.
Research Intern
Sea AI Lab•Singapore
Supervisors: Tianyu Pang, Chao Du. Long-context LLM training; led the AnchorAttention project.
Research Intern
Microsoft Research Asia•Beijing
Supervisor: Yujing Wang. Neural retrieval and corpus indexing.
PhD Student, Computer Science
University of Illinois Urbana-Champaign•UIUC
Advised by Prof. Jingrui He.
Research Intern
Alibaba Group•Beijing
Supervisors: Chang Zhou, Hongxia Yang. Item retrieval and recommendation.
B.S. in Computer Science & Statistics
University of Illinois Urbana-Champaign•UIUC
GPA 3.86/4.00. Undergraduate research with Prof. Jiawei Han.
Theory & Algorithms for Machine Learning
Jan 2025 — May 2025
Data Mining
Aug 2021 — Dec 2021
Introduction to Optimization
Jan 2020 — May 2020
Conference & journal reviewer for top-tier ML and NLP venues.
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