activity
20242026
most citedPyramidKV: Dynamic KV Cache Compression based on Pyramidal Information Funneling

2 citations · 2 across the 13 of their papers we have counts for

collaborators

15 papers

cs.LG2026

Universal Test-Time Training

Zefan Cai, Qinzhe Hu, Ziqiao Ma +2

Recent Test-Time Training (TTT) architectures compress context into fast weights that are updated online and queried as memory. Existing TTT designs keep this memory private to eac…

cs.AI2026

Multi-Head Attention Residuals

Cheng Luo, Zefan Cai, Junjie Hu

Transformers propagate information across depth through a single additive residual stream: every sublayer reads only the most recent state. Attention residuals relax this by lettin…

cs.CL2026

Test-Time Training with Next-Token Prediction

Xuan Ouyang, Zefan Cai, Junjie Hu

Next-token prediction is the self-supervised signal that trains language models, and every observed prompt token provides the same signal at test time. We study whether this signal…

cs.MA2026

GRASP: Graph Agentic Search over Propositions for Multi-hop Question Answering

Stockton Jenkins, Ramya Korlakai Vinayak, Junjie Hu

Agentic retrieval improves multi-hop question answering by giving language models autonomy to iteratively gather evidence. Recent work augments these systems with knowledge graphs…

cs.LG2026

Delta Attention Residuals

Cheng Luo, Zefan Cai, Junjie Hu

Attention Residuals replace standard additive residual connections with learned softmax attention over previous layer outputs, enabling selective cross-layer routing. However, stan…

cs.CL2025

MMGR: Multi-Modal Generative Reasoning Benchmark and Evaluation

Zefan Cai, Haoyi Qiu, Tianyi Ma +13

Modern multimodal generative models can synthesize visually compelling images and videos, but it remains unclear whether this visual fluency reflects genuine reasoning: when prompt…

cs.CL2025

From Preferences to Prejudice: The Role of Alignment Tuning in Shaping Social Bias in Video Diffusion Models

Zefan Cai, Haoyi Qiu, Haozhe Zhao +6

Recent advances in video diffusion models have significantly enhanced text-to-video generation, particularly through alignment tuning using reward models trained on human preferenc…

cs.CV2025

Scaling Up Audio-Synchronized Visual Animation: An Efficient Training Paradigm

Lin Zhang, Zefan Cai, Yufan Zhou +10

Recent advances in audio-synchronized visual animation enable control of video content using audios from specific classes. However, existing methods rely heavily on expensive manua…

cs.CL2025

CoLD: Counterfactually-Guided Length Debiasing for Process Reward Models in Mathematical Reasoning

Congmin Zheng, Jiachen Zhu, Jianghao Lin +6

Process Reward Models (PRMs) play a central role in evaluating and guiding multi-step reasoning in large language models (LLMs), especially for mathematical problem solving. Howeve…

cs.CV2025

MENTOR: Efficient Multimodal-Conditioned Tuning for Autoregressive Vision Generation Models

Haozhe Zhao, Zefan Cai, Shuzheng Si +5

Recent text-to-image models produce high-quality results but still struggle with precise visual control, balancing multimodal inputs, and requiring extensive training for complex m…

cs.CL2025

R-KV: Redundancy-aware KV Cache Compression for Reasoning Models

Zefan Cai, Wen Xiao, Hanshi Sun +11

Reasoning models have demonstrated impressive performance in self-reflection and chain-of-thought reasoning. However, they often produce excessively long outputs, leading to prohib…

cs.CV2025

VisualToolAgent (VisTA): A Reinforcement Learning Framework for Visual Tool Selection

Zeyi Huang, Yuyang Ji, Anirudh Sundara Rajan +5

We introduce VisTA, a new reinforcement learning framework that empowers visual agents to dynamically explore, select, and combine tools from a diverse library based on empirical p…

cs.LG2025

HeadInfer: Memory-Efficient LLM Inference by Head-wise Offloading

Cheng Luo, Zefan Cai, Hanshi Sun +7

Transformer-based large language models (LLMs) demonstrate impressive performance in long context generation. Extending the context length has disproportionately shifted the memory…

cs.AI2024

COMMA: A Communicative Multimodal Multi-Agent Benchmark

Timothy Ossowski, Danyal Maqbool, Jixuan Chen +3

The rapid advances of multimodal agents built on large foundation models have largely overlooked their potential for language-based communication between agents in collaborative ta…

cs.CL2024★ 2 cited

PyramidKV: Dynamic KV Cache Compression based on Pyramidal Information Funneling

Zefan Cai, Yichi Zhang, Bofei Gao +8

In this study, we investigate whether attention-based information flow inside large language models (LLMs) is aggregated through noticeable patterns for long context processing. Ou…