activity
20242026
collaborators

13 papers

cs.LG2026

On-Policy Residual Learning for Diffusion Language Models

Yifan Yu, Yuqing Jian, Jisen Li +9

Residual context is key to unlocking the speed-quality Pareto frontier of diffusion language models (DLMs) by carrying forward predictive distributions across denoising steps. Yet…

cs.LG2026

QATFactory: A Versatile, Deployment-Aligned Framework for Quantization-aware Training and Distillation of LLMs

Weili Xu, Jisen Li, Yuqing Jian +8

Large language model (LLM) inference is increasingly moving toward lower precision to realize the throughput of hardware accelerators, but aggressive post-training quantization (PT…

cs.LG2026

Tail-Likelihood Reinforcement Learning

Shrinivas Ramasubramanian, Daman Arora, Fahim Tajwar +11

Reinforcement learning typically optimizes average reward. For generative policies, the average can hide an important distinction: two policies can achieve the same mean reward whi…

cs.CL2026

Osprey: Target-agnostic Pre-training Makes Stronger Drafters in Speculative Decoding

Fengxiang Bie, Yuqing Jian, Yifan Yu +7

Speculative decoding is critical for accelerating LLM inference. However, the speedup is fragile: drafters are typically trained against a narrow distribution for a single target m…

cs.OS2026

ThunderAgent: A Simple, Fast and Program-Aware Agentic Inference System

Hao Kang, Ziyang Li, Weili Xu +7

Large language models(LLMs) are now used to power complex multi-turn agentic workflows. Existing systems run agentic inference by loosely assembling isolated components: an LLM inf…

cs.LG2026

When RL Meets Adaptive Speculative Training: A Unified Training-Serving System

Junxiong Wang, Fengxiang Bie, Jisen Li +14

Speculative decoding can significantly accelerate LLM serving, yet most deployments today disentangle speculator training from serving, treating speculator training as a standalone…

cs.RO2025

OXE-AugE: A Large-Scale Robot Augmentation of OXE for Scaling Cross-Embodiment Policy Learning

Guanhua Ji, Harsha Polavaram, Lawrence Yunliang Chen +5

Large and diverse datasets are needed for training generalist robot policies that have potential to control a variety of robot embodiments -- robot arm and gripper combinations --…

cs.LG2025

Beat the long tail: Distribution-Aware Speculative Decoding for RL Training

Zelei Shao, Vikranth Srivatsa, Sanjana Srivastava +12

Reinforcement learning(RL) post-training has become essential for aligning large language models (LLMs), yet its efficiency is increasingly constrained by the rollout phase, where…

cs.CV2025

CaptionQA: Is Your Caption as Useful as the Image Itself?

Shijia Yang, Yunong Liu, Bohan Zhai +5

Image captions serve as efficient surrogates for visual content in multimodal systems such as retrieval, recommendation, and multi-step agentic inference pipelines. Yet current eva…

cs.LG2025

CDLM: Consistency Diffusion Language Models For Faster Sampling

Minseo Kim, Chenfeng Xu, Coleman Hooper +5

Diffusion Language Models (DLMs) offer a promising parallel generation paradigm but suffer from slow inference due to numerous refinement steps and the inability to use standard KV…

cs.CV2025

LDGNet: A Lightweight Difference Guiding Network for Remote Sensing Change Detection

Chenfeng Xu

With the rapid advancement of deep learning, the field of change detection (CD) in remote sensing imagery has achieved remarkable progress. Existing change detection methods primar…

cs.DC2025

FlowKV: A Disaggregated Inference Framework with Low-Latency KV Cache Transfer and Load-Aware Scheduling

Weiqing Li, Guochao Jiang, Xiangyong Ding +5

Disaggregated inference has become an essential framework that separates the prefill (P) and decode (D) stages in large language model inference to improve throughput. However, the…

cs.CV2024

CVT-Occ: Cost Volume Temporal Fusion for 3D Occupancy Prediction

Zhangchen Ye, Tao Jiang, Chenfeng Xu +2

Vision-based 3D occupancy prediction is significantly challenged by the inherent limitations of monocular vision in depth estimation. This paper introduces CVT-Occ, a novel approac…