University of Southern California
Los Angeles, CA, USALab Openings. We are warmly welcoming new members to the FORTIS Lab!
Collaboration with Me. I am open to external opportunities for invited talks, research collaborations, and employment (only on the part-time/advising/visiting basis). Let us have a chat by email. I frequently visit major cities, e.g., Seattle, NYC, Chicago, Boston, Atlanta, and Bay Area to meet people, give talks, and host social events.
Research Interests: My research aims to build trustworthy, robust, and scalable AI that advances science and benefits society. I focus on rigorous algorithmic foundations, open-source system development, and high-impact applications in both human-centric and scientific domains.
Biography.
[Jun 2025] We have a new paper accepted to ECML PKDD 2025 on leveraging LLMs for few-shot graph OOD detection; see our Preprint!
[Jun 2025] We have a new paper, “SocialMaze,” introducing a benchmark to evaluate social reasoning in LLMs across games, interactions, and online platforms. See our Preprint!
[May 2025] We have a new paper on benchmarking personalized conversational reasoning for LLMs (PersonaConvBench). See our Preprint!
[May 2025] We have a new paper introducing AD-AGENT, a multi-agent LLM framework for anomaly detection. See our Preprint!
[May 2025] Our paper "AD-LLM: Benchmarking Large Language Models for Anomaly Detection" has been accepted to ACL 2025 Findings! Congrats to Tiankai Yang and see the Preprint.
[May 2025] Our survey paper "From Selection to Generation: A Survey of LLM-based Active Learning" has been accepted to ACL 2025 main conference! See the preprint.
[May 2025] Our tutorial "A Survey on Model Extraction Attacks and Defenses for Large Language Models" was accepted to KDD 2025 as a Lecture-Style Tutorial! Congrats to Kaixiang Zhao, Lincan Li, Kaize Ding, Neil Gong, and Yushun Dong!
[May 2025] We have a new paper on zero-shot graph OOD detection using foundation models (GLIP-OOD); see our Preprint!
[May 2025] We have a new paper introducing GOE-LLM, a framework using LLMs to generate synthetic OOD nodes for graph OOD detection without requiring real OOD data. See our Preprint!
[Apr 2025] We have a new paper on privacy risks in image-based multimodal reasoning (Doxing via the Lens); see our Preprint!
[Apr 2025] Our paper on label‑efficient graph open‑set learning (LEGO‑Learn) has been accepted to TMLR! Read the final version on OpenReview.
[Apr 2025] We have a new paper on mitigating hallucination in LLMs via logical reasoning and retrieval-based verification; see our Preprint!
[Apr 2025] We have a new paper on adversarial prompt optimization to manipulate LLM ranking systems (StealthRank); see our Preprint!
[Apr 2025] We have a new paper on jailbreak detection for MLLMs—JailDAM proposes adaptive memory updates for generalizing to unseen jailbreaks. See our Preprint!
[Apr 2025] DPU: Dynamic Prototype Updating for Multimodal Out-of-Distribution Detection is accepted to CVPR 2025 as a highlight paper; see our Preprint!
[Mar 2025] We have a new paper on hierarchical cross-modal alignment for decoupled multimodal representation learning (DecAlign); see our Preprint!
[Mar 2025] We have a new paper exploring a causal approach to mitigating hallucinations in Vision-Language Models (VLMs); see our Preprint!
[Mar 2025] We have a new paper on secure and efficient on-device OOD detection without backpropagation (SecDOOD); see our Preprint!
[Mar 2025] Join the newly established ACM Transactions on AI for Science (TAIS) as an Associate Editor!
[Mar 2025] We have a new paper, TRUSTEVAL: A Dynamic Evaluation Toolkit on Trustworthiness of Generative Foundation Models, accepted to NAACL 2025 Demo Track; see our Preprint soon!