collaborators

12 papers

cs.LG2026

MolE-RAG: Molecular Structure-Enhanced Retrieval-Augmented Generation for Chemistry

Joey Chan, Wonbin Kweon, Ashley Shin +4

Large language models (LLMs) have shown promise for molecular property prediction, but their ability to reason over chemical structures remains limited, as molecular representation…

cs.CL2026

Condition-Gated Reasoning for Context-Dependent Biomedical Question Answering

Jash Rajesh Parekh, Wonbin Kweon, Joey Chan +7

Current biomedical question answering (QA) systems often assume that medical knowledge applies uniformly, yet real-world clinical reasoning is inherently conditional: nearly every…

cs.AI2026

Adaptation of Agentic AI: A Survey of Post-Training, Memory, and Skills

Pengcheng Jiang, Jiacheng Lin, Zhiyi Shi +31

Large language model (LLM) agents are moving beyond prompting alone. ChatGPT marked the rise of general-purpose LLM assistants, DeepSeek showed that on-policy reinforcement learnin…

cs.IR2026

Efficient, Property-Aligned Fan-Out Retrieval via RL-Compiled Diffusion

Pengcheng Jiang, Judith Yue Li, Moonkyung Ryu +8

Many modern retrieval problems are set-valued: given a broad intent, the system must return a collection of results that optimizes higher-order properties (e.g., diversity, coverag…

cs.CL2026

Structure-Augmented Reasoning Generation

Jash Rajesh Parekh, Pengcheng Jiang, Jiawei Han

Recent advances in Large Language Models (LLMs) have significantly improved complex reasoning capabilities. Retrieval-Augmented Generation (RAG) has further extended these capabili…

cs.AI2026

Steer2Adapt: Dynamically Composing Steering Vectors Elicits Efficient Adaptation of LLMs

Pengrui Han, Xueqiang Xu, Keyang Xuan +12

Activation steering has emerged as a promising approach for efficiently adapting large language models (LLMs) to downstream behaviors. However, most existing steering methods rely…