2 papers
cs.AI2026
BiGraph-Diffuse: A Bidirectional Diffusion Language Model with Graph-Structured Retrieval For Mental Health Counseling
Yuxiang Cheng, Quanwei Tang, Lvhui Lu +3
Mental health disorders affect hundreds of millions of people around the world, yet access to professional counseling remains severely limited. AI-powered dialogue systems offer a…
cs.CL2025
A Comprehensive Graph Framework for Question Answering with Mode-Seeking Preference Alignment
Quanwei Tang, Sophia Yat Mei Lee, Junshuang Wu +4
Recent advancements in retrieval-augmented generation (RAG) have enhanced large language models in question answering by integrating external knowledge. However, challenges persist…