activity
20232026
most citedMetaTool Benchmark for Large Language Models: Deciding Whether to Use Tools and Which to Use

5 citations · 8 across the 11 of their papers we have counts for

collaborators

13 papers

cs.CL2026

When is Your LLM Steerable?

Chenrui Fan, Yize Cheng, Ming Li +2

Activation steering offers a lightweight approach to control language models' behavior at inference time, but whether it succeeds or fails heavily depends on the prompt, concept, m…

cs.AI2026

Model-Adaptive Tool Necessity Reveals the Knowing-Doing Gap in LLM Tool Use

Yize Cheng, Chenrui Fan, Mahdi JafariRaviz +2

Large language models (LLMs) increasingly act as autonomous agents that must decide when to answer directly vs. when to invoke external tools. Prior work studying adaptive tool use…

cs.CV2025

V-REX: Benchmarking Exploratory Visual Reasoning via Chain-of-Questions

Chenrui Fan, Yijun Liang, Shweta Bhardwaj +3

While many vision-language models (VLMs) are developed to answer well-defined, straightforward questions with highly specified targets, as in most benchmarks, they often struggle i…

cs.CL2025

Your LLM Agents are Temporally Blind: The Misalignment Between Tool Use Decisions and Human Time Perception

Yize Cheng, Arshia Soltani Moakhar, Chenrui Fan +5

Large language model (LLM) agents are increasingly used to interact with and execute tasks in dynamic environments. However, a critical yet overlooked limitation of these agents is…

cs.AI2025

Understanding the Thinking Process of Reasoning Models: A Perspective from Schoenfeld's Episode Theory

Ming Li, Nan Zhang, Chenrui Fan +6

While Large Reasoning Models (LRMs) generate extensive chain-of-thought reasoning, we lack a principled framework for understanding how these thoughts are structured. In this paper…

cs.LG2025

Grokking in LLM Pretraining? Monitor Memorization-to-Generalization without Test

Ziyue Li, Chenrui Fan, Tianyi Zhou

This paper presents the first study of grokking in practical LLM pretraining. Specifically, we investigate when an LLM memorizes the training data, when its generalization on downs…

cs.AI2025

Missing Premise exacerbates Overthinking: Are Reasoning Models losing Critical Thinking Skill?

Chenrui Fan, Ming Li, Lichao Sun +1

We find that the response length of reasoning LLMs, whether trained by reinforcement learning or supervised learning, drastically increases for ill-posed questions with missing pre…

cs.CV2025

ColorBench: Can VLMs See and Understand the Colorful World? A Comprehensive Benchmark for Color Perception, Reasoning, and Robustness

Yijun Liang, Ming Li, Chenrui Fan +7

Color plays an important role in human perception and usually provides critical clues in visual reasoning. However, it is unclear whether and how vision-language models (VLMs) can…

cs.CL2024★ 1 cited

1+1>2: Can Large Language Models Serve as Cross-Lingual Knowledge Aggregators?

Yue Huang, Chenrui Fan, Yuan Li +4

Large Language Models (LLMs) have garnered significant attention due to their remarkable ability to process information across various languages. Despite their capabilities, they e…

cs.CV2023★ 1 cited

MetaCloak: Preventing Unauthorized Subject-driven Text-to-image Diffusion-based Synthesis via Meta-learning

Yixin Liu, Chenrui Fan, Yutong Dai +3

Text-to-image diffusion models allow seamless generation of personalized images from scant reference photos. Yet, these tools, in the wrong hands, can fabricate misleading or harmf…

cs.CR2023★ 1 cited

GraphCloak: Safeguarding Task-specific Knowledge within Graph-structured Data from Unauthorized Exploitation

Yixin Liu, Chenrui Fan, Xun Chen +2

As Graph Neural Networks (GNNs) become increasingly prevalent in a variety of fields, from social network analysis to protein-protein interaction studies, growing concerns have eme…

cs.SE2023★ 5 cited

MetaTool Benchmark for Large Language Models: Deciding Whether to Use Tools and Which to Use

Yue Huang, Jiawen Shi, Yuan Li +8

Large language models (LLMs) have garnered significant attention due to their impressive natural language processing (NLP) capabilities. Recently, many studies have focused on the…

cs.LG2023

Unlearnable Graph: Protecting Graphs from Unauthorized Exploitation

Yixin Liu, Chenrui Fan, Pan Zhou +1

While the use of graph-structured data in various fields is becoming increasingly popular, it also raises concerns about the potential unauthorized exploitation of personal data fo…