collaborators

45 papers

cs.AI2026

Do LLMs Know What to Ask and When? Evaluating Multi-Turn Information Seeking

Yepeng Huang, Jiawen Zhang, Michelle Dai +4

When a user question is underspecified, a capable model should recognize that its context is insufficient, identify the missing information, ask for it, and respond only once that…

cs.AI2026

MatrAIx: Simulating the World with 8.3 Billion Persona Agents

Xiaomin Li, Yuexing Hao, Jianheng Hou +90

Human evaluation of AI systems and digital products is costly, slow, and difficult to scale. Offline evaluations are more scalable but often abstract away human diversity and inter…

q-bio.QM2026

Kidney function and kidney failure prediction in a large multiethnic population

James A. Diao, Morgan Sanchez, Adir Sommer +7

Background: Patients with chronic kidney disease (CKD) experience worsening kidney function and develop subsequent kidney failure at different rates. Accurate estimates of a patien…

cs.LG2026

Adaptive Time Series Reasoning via Segment Selection

Shvat Messica, Jiawen Zhang, Kevin Li +2

The paper presents ARTIST, a model that adaptively selects informative temporal segments of a time series to answer natural‑language questions, using a controller‑reasoner architec…

cs.LG2026

How Post-Training Shapes Biological Reasoning Models

Lukas Fesser, Hanlin Zhang, Michelle M. Li +5

Scientific reasoning models for biology combine language models with foundation models trained on multimodal biological data, including DNA, RNA, and proteins. These models are bui…

cs.AI2026

An AI agent for treatment reasoning over a biomedical tool universe

Shanghua Gao, Ayush Noori, Richard Zhu +13

Treatment reasoning underpins every therapeutic decision, integrating disease context, comorbidities, medications, contraindications, and evolving biomedical knowledge to select an…