collaborators

7 papers

cs.IR2026

GRP v0.1 Technical Report

Wenfeng Zhuo, Vincent Xue, Charles Wei +19

Industrial recommendation systems rely on multi-stage cascades whose retrieval, ranking, and serving components are difficult to replace jointly. We present GRP, a generative recom…

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 +20

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.CR2026

A Survey of Secure Retrieval-Augmented Generation

Yuming Xu, Mingtao Zhang, Zhuohan Ge +7

Retrieval-augmented generation (RAG) improves large language models (LLMs) with external knowledge, but this access path creates security risks distinct from inherent prompt-only o…

cs.LG2025

Efficient Linear Attention for Multivariate Time Series Modeling via Entropy Calibration

Mingtao Zhang, Guoli Yang, Zhanxing Zhu +2

Attention mechanisms are effective for multivariate time series modeling because they adaptively aggregate information across timestamps and variables. Their quadratic cost, howeve…

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…