activity
20192026
most citedSPFresh: Incremental In-Place Update for Billion-Scale Vector Search

58 citations · 188 across the 90 of their papers we have counts for

collaborators
Showing 2025Show all

30 papers · 1 filter

cs.IR2025

Optimizing Generative Ranking Relevance via Reinforcement Learning in Xiaohongshu Search

Ziyang Zeng, Heming Jing, Jindong Chen +11

Ranking relevance is a fundamental task in search engines, aiming to identify the items most relevant to a given user query. Traditional relevance models typically produce scalar s…

cs.NI2025

Optimize Replica Server Placement in a Satellite Network

Zhiyuan He, Yi Xu, Cheng Luo +2

Satellite communication offers Internet connectivity to remote locations, such as villages, deserts, mountains, and at sea. However, transmitting content over satellite networks is…

cs.LG2025

VL Norm: Rethink Loss Aggregation in RLVR

Zhiyuan He, Xufang Luo, Yike Zhang +2

We propose VL Norm (Variance-reduced Length-dependent Normalization), a simple yet effective loss aggregation method tailored to the characteristic of dynamic generation lengths in…

cs.CV2025

Video-in-the-Loop: Span-Grounded Long Video QA with Interleaved Reasoning

Chendong Wang, Donglin Bai, Yifan Yang +11

We present \emph{Video-in-the-Loop} (ViTL), a two-stage long-video QA framework that preserves a fixed token budget by first \emph{localizing} question-relevant interval(s) with a…

cs.CL2025

MTraining: Distributed Dynamic Sparse Attention for Efficient Ultra-Long Context Training

Wenxuan Li, Chengruidong Zhang, Huiqiang Jiang +3

The adoption of long context windows has become a standard feature in Large Language Models (LLMs), as extended contexts significantly enhance their capacity for complex reasoning…

cs.AI2025

ProRe: A Proactive Reward System for GUI Agents via Reasoner-Actor Collaboration

Gaole Dai, Shiqi Jiang, Ting Cao +5

Reward is critical to the evaluation and training of large language models (LLMs). However, existing rule-based or model-based reward methods struggle to generalize to GUI agents,…

cs.NI2025

Congestion Control System Optimization with Large Language Models

Zhiyuan He, Aashish Gottipati, Lili Qiu +2

Congestion control is a fundamental component of Internet infrastructure, and researchers have dedicated considerable effort to developing improved congestion control algorithms. H…

cs.HC2025

Prompt Orchestration Markup Language

Yuge Zhang, Nan Chen, Jiahang Xu +1

Large Language Models (LLMs) require sophisticated prompting, yet current practices face challenges in structure, data integration, format sensitivity, and tooling. Existing method…

cs.AI2025

Agent Lightning: Train ANY AI Agents with Reinforcement Learning

Xufang Luo, Yuge Zhang, Zhiyuan He +5

We present Agent Lightning, a flexible and extensible framework that enables Reinforcement Learning (RL)-based training of Large Language Models (LLMs) for any AI agent. Unlike exi…

cs.LG2025

LeanK: Learnable K Cache Channel Pruning for Efficient Decoding

Yike Zhang, Zhiyuan He, Huiqiang Jiang +4

Large language models (LLMs) enable long-context tasks but face efficiency challenges due to the growing key-value (KV) cache. We propose LeanK, a learning-based method that prunes…

cs.CL2025

Accelerating Prefilling via Decoding-time Contribution Sparsity

Zhiyuan He, Yike Zhang, Chengruidong Zhang +3

Large Language Models (LLMs) incur quadratic attention complexity with input length, creating a major time bottleneck in the prefilling stage. Existing acceleration methods largely…

cs.CR2025

SecurityLingua: Efficient Defense of LLM Jailbreak Attacks via Security-Aware Prompt Compression

Yucheng Li, Surin Ahn, Huiqiang Jiang +3

Large language models (LLMs) have achieved widespread adoption across numerous applications. However, many LLMs are vulnerable to malicious attacks even after safety alignment. The…

cs.CV2025

ReasonGen-R1: CoT for Autoregressive Image generation models through SFT and RL

Yu Zhang, Yunqi Li, Yifan Yang +7

Although chain-of-thought reasoning and reinforcement learning (RL) have driven breakthroughs in NLP, their integration into generative vision models remains underexplored. We intr…

cs.HC2025

Screen Reader Programmers in the Vibe Coding Era: Adaptation, Empowerment, and New Accessibility Landscape

Nan Chen, Luna K. Qiu, Arran Zeyu Wang +2

Generative AI agents are reshaping human-computer interaction, shifting users from direct task execution to supervising machine-driven actions, especially the rise of "vibe coding"…

cs.CL2025

Chain-of-Model Learning for Language Model

Kaitao Song, Xiaohua Wang, Xu Tan +14

In this paper, we propose a novel learning paradigm, termed Chain-of-Model (CoM), which incorporates the causal relationship into the hidden states of each layer as a chain style,…

cs.CV2025

MMInference: Accelerating Pre-filling for Long-Context VLMs via Modality-Aware Permutation Sparse Attention

Yucheng Li, Huiqiang Jiang, Chengruidong Zhang +8

The integration of long-context capabilities with visual understanding unlocks unprecedented potential for Vision Language Models (VLMs). However, the quadratic attention complexit…

cs.IR2025

An Empirical Study of Position Bias in Modern Information Retrieval

Ziyang Zeng, Dun Zhang, Jiacheng Li +3

This study investigates the position bias in information retrieval, where models tend to overemphasize content at the beginning of passages while neglecting semantically relevant i…

cs.LG2025★ 1 cited

RetroInfer: A Vector Storage Engine for Scalable Long-Context LLM Inference

Yaoqi Chen, Jinkai Zhang, Baotong Lu +16

Recent large language models (LLMs) are rapidly extending their context windows, yet inference throughput lags due to increasing GPU memory and bandwidth demands. This is because t…

cs.CV2025

Zoomer: Adaptive Image Focus Optimization for Black-box MLLM

Jiaxu Qian, Chendong Wang, Yifan Yang +16

Multimodal large language models (MLLMs) such as GPT-4o, Gemini Pro, and Claude 3.5 have enabled unified reasoning over text and visual inputs, yet they often hallucinate in real w…

cs.CV2025

AVA: Towards Agentic Video Analytics with Vision Language Models

Yuxuan Yan, Shiqi Jiang, Ting Cao +5

AI-driven video analytics has become increasingly important across diverse domains. However, existing systems are often constrained to specific, predefined tasks, limiting their ad…

cs.LG2025

Scaling Up On-Device LLMs via Active-Weight Swapping Between DRAM and Flash

Fucheng Jia, Zewen Wu, Shiqi Jiang +7

Large language models (LLMs) are increasingly being deployed on mobile devices, but the limited DRAM capacity constrains the deployable model size. This paper introduces ActiveFlow…

cs.NI2025

Joint Optimization of Handoff and Video Rate in LEO Satellite Networks

Kyoungjun Park, Zhiyuan He, Cheng Luo +4

Low Earth Orbit (LEO) satellite communication is a promising approach to providing Internet connectivity to users in many remote areas. As videos are likely to account for most tra…

cs.CV2025

HiTVideo: Hierarchical Tokenizers for Enhancing Text-to-Video Generation with Autoregressive Large Language Models

Ziqin Zhou, Yifan Yang, Yuqing Yang +7

Text-to-video generation poses significant challenges due to the inherent complexity of video data, which spans both temporal and spatial dimensions. It introduces additional redun…

cs.CL2025★ 2 cited

On Memory Construction and Retrieval for Personalized Conversational Agents

Zhuoshi Pan, Qianhui Wu, Huiqiang Jiang +8

To deliver coherent and personalized experiences in long-term conversations, existing approaches typically perform retrieval augmented response generation by constructing memory ba…