activity
20232026
most citedHow new data permeates LLM knowledge and how to dilute it

1 citations · 2 across the 15 of their papers we have counts for

collaborators

15 papers

cs.AI2026

Beyond Quantity: Trajectory Diversity Scaling for Code Agents

Guhong Chen, Chenghao Sun, Cheng Fu +16

As code large language models (LLMs) evolve into tool-interactive agents via the Model Context Protocol (MCP), their generalization is increasingly limited by low-quality synthetic…

cs.CL2026

Thinking Seeds: Restarting On-Policy RL from the Model's Own Past Reasoning States

Lei Yang, Wei Bi, Chenxi Sun +2

On-policy reinforcement learning (RL) for language models trains on the reasoning states visited by the current policy. As training sharpens the policy, some states reached by earl…

cs.CL2025

Compass-Embedding v4: Robust Contrastive Learning for Multilingual E-commerce Embeddings

Pakorn Ueareeworakul, Shuman Liu, Jinghao Feng +7

As global e-commerce rapidly expands into emerging markets, the lack of high-quality semantic representations for low-resource languages has become a decisive bottleneck for retrie…

cs.DC2025

WarmServe: Enabling One-for-Many GPU Prewarming for Multi-LLM Serving

Chiheng Lou, Sheng Qi, Rui Kang +5

Deploying multiple models within shared GPU clusters is a key strategy to improve resource efficiency in large language model (LLM) serving. Existing multi-LLM serving systems impr…

cs.CV2025

You May Speak Freely: Improving the Fine-Grained Visual Recognition Capabilities of Multimodal Large Language Models with Answer Extraction

Logan Lawrence, Oindrila Saha, Megan Wei +3

Despite the renewed interest in zero-shot visual classification due to the rise of Multimodal Large Language Models (MLLMs), the problem of evaluating free-form responses of auto-r…

cs.CL2025★ 1 cited

LongCat-Flash Technical Report

Meituan LongCat Team, Bayan, Bei Li +179

We introduce LongCat-Flash, a 560-billion-parameter Mixture-of-Experts (MoE) language model designed for both computational efficiency and advanced agentic capabilities. Stemming f…

cs.CE2025

An Information Bottleneck Asset Pricing Model

Che Sun

Deep neural networks (DNNs) have garnered significant attention in financial asset pricing, due to their strong capacity for modeling complex nonlinear relationships within financi…

cs.CL2025

What is an "Abstract Reasoner"? Revisiting Experiments and Arguments about Large Language Models

Tian Yun, Chen Sun, Ellie Pavlick

Recent work has argued that large language models (LLMs) are not "abstract reasoners", citing their poor zero-shot performance on a variety of challenging tasks as evidence. We rev…

cs.LG2025

xbench: Tracking Agents Productivity Scaling with Profession-Aligned Real-World Evaluations

Kaiyuan Chen, Yixin Ren, Yang Liu +30

We introduce xbench, a dynamic, profession-aligned evaluation suite designed to bridge the gap between AI agent capabilities and real-world productivity. While existing benchmarks…

cs.CV2025

MS4UI: A Dataset for Multi-modal Summarization of User Interface Instructional Videos

Yuan Zang, Hao Tan, Seunghyun Yoon +5

We study multi-modal summarization for instructional videos, whose goal is to provide users an efficient way to learn skills in the form of text instructions and key video frames.…

cs.CL2025★ 1 cited

How new data permeates LLM knowledge and how to dilute it

Chen Sun, Renat Aksitov, Andrey Zhmoginov +5

Large language models learn and continually learn through the accumulation of gradient-based updates, but how individual pieces of new information affect existing knowledge, leadin…

cs.CL2024

Learning and Unlearning of Fabricated Knowledge in Language Models

Chen Sun, Nolan Andrew Miller, Andrey Zhmoginov +2

What happens when a new piece of knowledge is introduced into the training data and how long does it last while a large language model (LM) continues to train? We investigate this…

cs.LG2024

EPO: Hierarchical LLM Agents with Environment Preference Optimization

Qi Zhao, Haotian Fu, Chen Sun +1

Long-horizon decision-making tasks present significant challenges for LLM-based agents due to the need for extensive planning over multiple steps. In this paper, we propose a hiera…

cs.CV2023

Pixel Aligned Language Models

Jiarui Xu, Xingyi Zhou, Shen Yan +5

Large language models have achieved great success in recent years, so as their variants in vision. Existing vision-language models can describe images in natural languages, answer…

cs.CL2023

Evaluating the Generation Capabilities of Large Chinese Language Models

Hui Zeng, Jingyuan Xue, Meng Hao +3

This paper unveils CG-Eval, the first-ever comprehensive and automated evaluation framework designed for assessing the generative capabilities of large Chinese language models acro…