About
I am currently a Student Researcher at the School of Computing, National University of Singapore. I am supervised by Prof. Mong-Li Lee and Prof. Wynne Hsu at the Center for Trusted Internet and Community (CTIC). I also work with Dr. Hao Fei, Dr. Shengqiong Wu, and Dr. Bobo Li. I am grateful for their guidance, support, and the many discussions that continue to shape my research.
Research Interests
My long-term goal is to build AI with an evolving understanding of the world and the initiative to act within it. I am interested in how AI can accumulate knowledge from individual experience, exercise judgment in unfamiliar situations, and pursue meaningful goals under uncertainty. I see learning, judgment, agency, and collaboration as distinct but interacting capacities, and seek to understand how they can develop together.
Experience & KnowledgeExperience should change how a system thinks
An encounter can become a memory, a new explanation, or a different way of approaching a problem. I am interested in how AI consolidates experience into knowledge and reasoning strategies that remain open to revision. Different histories should be able to support different perspectives and expertise, while allowing systems to recognize when familiar lessons no longer apply.
Perception & JudgmentUnderstanding what has changed, and what matters
Acting in a changing world requires sensitivity to both new evidence and the limits of existing beliefs. I study how AI can distinguish observations from assumptions, assess conflicting information, and reconsider its interpretation of a situation. A central challenge is knowing when experience offers a useful guide and when a surprising observation calls for a new explanation.
Agency & InitiativeChoosing what is worth pursuing
Agency involves forming purposes, recognizing possibilities, and taking initiative before every uncertainty is resolved. Real-world goals do not come with predefined problems; an agent must continually work out what is worth solving, pursuing, or changing as the world unfolds. I aim to develop AI that can propose goals, seek opportunities, and sustain or redirect its efforts. This raises questions of WHY → WHEN → WHAT → WHETHER → HOW. Confidence to explore and judgment about when to pause develop together.
Interaction & CollaborationBuilding shared understanding across different perspectives
Individual histories create differences in what people and AI know, expect, and intend. I am interested in how interaction makes these differences intelligible, supports the exchange of experience, and enables coordinated action. Collaboration should allow participants to question assumptions, negotiate goals, and learn from one another while preserving the distinct knowledge each brings.
Research Perspectives
Conceptual framework · 2025
Interaction-Driven Evolving Intelligence
Professional expertise is more than knowing facts: it involves knowing how to investigate a problem, weigh evidence, and decide what to do next.
We argue that AI should develop such expertise by coupling fluid generation with crystallized reasoning: explicit, executable structures that humans and AI can jointly refine through sustained interaction. New possibilities can be explored, tested, and consolidated into reusable methods, allowing different histories of interaction to shape distinct approaches to judgment within shared professional standards.
Position paper · 2025
Why do AI agents communicate in human language?
Exchanging fluent messages is not the same as coordinating knowledge, intentions, and actions.
We argue that AI communication should be designed around the internal representations and behavioral dependencies that make collaboration possible, rather than inherited from human conversation. The deeper challenge is to build and train models for collaboration from the outset, so that communication updates shared understanding, preserves responsibilities, and connects joint intentions to coordinated action.
Selected Work
AICO: AI-human Alignment and Cooperation
Pengcheng Zhou
Technical report · Coming soon
An open research framework for long-term human-AI collaboration. AICO combines personal and expert alignment with relationship context and dialogue strategies, using feedback to guide how AI responds and cooperates over time.
HoloGeo: Mitigating Landmark Bias in Geo-localization via Evidence-Driven Reasoning
Pengcheng Zhou, X. Liu, Y. Yin, B. Li, S. Wu, M.-L. Lee, W. Hsu
ACM MM 2026
Measures how salient but misleading landmarks bias geolocation, and trains vision-language models to base their decisions on a broader range of geographic evidence.
Provably Secure Retrieval-Augmented Generation
Pengcheng Zhou*, Y. Feng*, Z. Yang
arXiv preprint · 2025
Protects document content and embeddings through encryption and retrieval-time verification, with confidentiality and integrity proofs under a defined security model and evaluations against leakage and poisoning attacks.
Additional Publications
2026
Grounding 3D Functionality via Interaction Target Chains
Pengcheng Zhou, X. Chen, X. Liu, X. Zhang, Y. Zhang, X. Yang, X. Xu, S. Li
Manuscript under review
FinAcumen: Financial Multimodal Reasoning via Self-Evolving Experience Memory Harness
P. Guo*, Pengcheng Zhou*, Y. Jian, S. Chen, Z. Yang, L. Zhou
Findings of EMNLP 2026
DASM: Domain-Aware Sharpness Minimization for Multi-Domain Voice Stream Steganalysis
Pengcheng Zhou, P. Guo, S. Chen, M. Zhao, Z. Yang, L. Zhou
arXiv preprint
Understand Then Memory: A Cognitive Gist-Driven RAG Framework with Global Semantic Diffusion
Pengcheng Zhou, H. Li, Z. Nie, J. Chen, Q. Gong, W. Zhang, C. Yu
arXiv preprint
2025
Efficient Streaming Voice Steganalysis in Challenging Detection Scenarios
Pengcheng Zhou, Z. Fang, Z. Yang, Z. Zhou, L. Zhou
IEEE Transactions on Information Forensics and Security
DAEF-VS: An Efficient Universal VoIP Steganalysis Framework Based on Domain-Aware Knowledge
Z. Fang*, Pengcheng Zhou*, Z. Yang, Z. Zhou, L. Zhou
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
* Equal contribution.
Education
Current
National University of Singapore
M.Sc. in Computer Engineering
Jun 2024
Beijing University of Posts and Telecommunications
B.Eng. in Internet of Things Engineering
Jun 2024
Queen Mary University of London
B.Sc. in Internet of Things, First Class Honours
Joint programme with BUPT; dual degrees awarded.
Research Experience
Sep 2025 - Present
Student Researcher, National University of Singapore
School of Computing
Advised by Prof. Mong-Li Lee and Prof. Wynne Hsu.
Jul 2023 - 2026
Research Assistant, Tsinghua University
Pervasive Human-Computer Interaction Laboratory
Advised by Prof. Yuanchun Shi and Prof. Chun Yu.
Jul 2023 - Jul 2025
Research Assistant, BUPT
Mobile Internet Security Technology National Project Laboratory
Advised by Prof. Zhongliang Yang.
Mar 2022 - Dec 2022
Research Assistant, BUPT
Pattern Recognition and Intelligent Systems Laboratory
Advised by Prof. Junli Yang and Prof. Ming Wu.
Academic Service
PC Member: AAAI 2027. Reviewer: ACM Multimedia 2026, NeurIPS 2026, AAAI 2026, ICASSP 2025.