collaborators

5 papers

cs.AI2026

PolyUQuest: Verifiable Structure-Aware Web RAG over Heterogeneous Graphs

Ying Liu, Yi Ye, Quanyu Feng +5

Existing retrieval-augmented generation (RAG) systems treat web pages as flat text, losing the structural and semantic signals encoded in HTML. We present PolyUQuest, a verifiable,…

cs.IR2026

LLM-Based Generative Retrieval for Snapchat Content Recommendation

Liam Collins, Jiwen Ren, Donald Loveland +19

Pretrained large language models (LLMs) are promising retrieval engines because they combine rich semantic priors, strong sequence modeling capabilities, and favorable scaling beha…

cs.AI2026

Unequal Trips, Unequal Places: Diagnosing and Mitigating Delay Inequity in Autonomous Vehicle Fleet Coordination

Nicole Hu, Mingtao Zhang, Haoyang LI +2

City-scale autonomous vehicle fleet coordinators are typically optimized for aggregate travel time, yet fleet averages conceal how delay is distributed across trips and regions. We…

cs.LG2025

Efficient Linear Attention for Multivariate Time Series Modeling via Entropy Equality

Mingtao Zhang, Guoli Yang, Zhanxing Zhu +2

Attention mechanisms have been extensively employed in various applications, including time series modeling, owing to their capacity to capture intricate dependencies; however, the…

cs.SI2025

Machine Learning for Evolutionary Graph Theory

Guoli Yang, Matteo Cavaliere, Mingtao Zhang +3

The stability of communities - whether biological, social, economic, technological or ecological depends on the balance between cooperation and cheating. While cooperation strength…