collaborators

12 papers

cs.CR2026

SlotGuard: Stop Oversharing Private Local Context in LLM Agent Transcri

Haocheng Xia, Yongjoo Park

LLM agents can leak privacy (e.g., paths, emails) and credentials (e.g., API keys) as agent observations (e.g., tool outputs, shell logs, and file reads) are appended to provider-b…

cs.CL2026

LazyAttention: Efficient Retrieval-Augmented Generation with Deferred Positional Encoding

Haocheng Xia, Mihir Pamnani, Hanxi Fang +2

Key-value (KV) caching accelerates inference of large language models (LLMs) by reusing past computations for generated tokens. Its importance becomes even greater in long-context…

cs.DB2026

MojoFrame: Dataframe Library in Mojo Language

Shengya Huang, Zhaoheng Li, Derek Warner +1

Mojo is an emerging programming language built on MLIR (Multi-Level Intermediate Representation) and supports JIT (Just-in-Time) compilation. It enables transparent hardware-specif…

cs.DB2025

Cloud-Native Vector Search: A Comprehensive Performance Analysis

Zhaoheng Li, Wei Ding, Silu Huang +5

Vector search has been widely employed in recommender system and retrieval-augmented-generation pipelines, commonly performed with vector indexes to efficiently find similar items…

cs.DB2025

Chipmink: Efficient Delta Identification for Massive Object Graph

Supawit Chockchowwat, Sumay Thakurdesai, Zhaoheng Li +2

Ranging from batch scripts to computational notebooks, modern data science tools rely on massive and evolving object graphs that represent structured data, models, plots, and more.…

cs.DB2025

QStore: Quantization-Aware Compressed Model Storage

Raunak Shah, Zhaoheng Li, Yongjoo Park

Modern applications commonly leverage large, multi-modal foundation models. These applications often feature complex workflows that demand the storage and usage of similar models i…