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Dexun Li

10 accepted papers

2025

ACEBench: A Comprehensive Evaluation of LLM Tool Usage

EMNLP 2025

Large Language Models (LLMs) have demonstrated significant potential in decision-making and reasoning, particularly when integrated with various tools to effectively solve complex problems. However, existing benchmarks for evaluating LLMs’ tool usage face several limitations: (1) limited evaluation

Cited by 0SourcePDFScholar
2025

Adaptive Tool Use in Large Language Models with Meta-Cognition Trigger

ACL 2025long

Large language models (LLMs) have shown remarkable emergent capabilities, transforming the execution of functional tasks by leveraging external tools for complex problems that require specialized processing or up-to-date data. While existing research expands LLMs access to diverse tools (e.g., progr…

Cited by 0SourcePDFScholar
2025

MMDocIR: Benchmarking Multimodal Retrieval for Long Documents

EMNLP 2025

Multimodal document retrieval aims to identify and retrieve various forms of multimodal content, such as figures, tables, charts, and layout information from extensive documents. Despite its increasing popularity, there is a notable lack of a comprehensive and robust benchmark to effectively evaluat

Cited by 0SourcePDFScholar
2025

Marginal Benefit Driven RL Teacher for Unsupervised Environment Design

AAAI 2025technical

Training generally capable agents in complex environments is a challenging task that involves identifying "right" environments at the training stage. Recent research has highlighted the potential of the Unsupervised Environment Design framework, which generates environment instances/levels adaptivel…

Cited by 0SourcePDFScholar
2025

Planning with Multi-Constraints via Collaborative Language Agents

COLING 2025main

The rapid advancement of neural language models has sparked a new surge of intelligent agent research. Unlike traditional agents, large language model-based agents (LLM agents) have emerged as a promising paradigm for achieving artificial general intelligence (AGI) due to their superior reasoning an…

2025

RAPID: Efficient Retrieval-Augmented Long Text Generation with Writing Planning and Information Discovery

ACL 2025finding

Generating knowledge-intensive and comprehensive long texts, such as encyclopedia articles, remains significant challenges for Large Language Models. It requires not only the precise integration of facts but also the maintenance of thematic coherence throughout the article. Existing methods, such as…

2025

ToolACE: Winning the Points of LLM Function Calling

ICLR 2025poster

Function calling significantly extends the application boundary of large language models (LLMs), where high-quality and diverse training data is critical for unlocking this capability. However, collecting and annotating real function-calling data is challenging, while synthetic data from existing pi…

Cited by 23SourcePDFScholar
2023

Generalization through Diversity: Improving Unsupervised Environment Design

IJCAI 2023poster

Agent decision making using Reinforcement Learning (RL) heavily relies on either a model or simulator of the environment (e.g., moving in an 8x8 maze with three rooms, playing Chess on an 8x8 board). Due to this dependence, small changes in the environment (e.g., positions of obstacles in the maze,…

Cited by 4SourcePDFScholar
2022

Efficient resource allocation with fairness constraints in restless multi-armed bandits

UAI 2022poster

Restless Multi-Armed Bandits (RMAB) is an apt model to represent decision-making problems in public health interventions (e.g., tuberculosis, maternal, and child care), anti-poaching planning, sensor monitoring, personalized recommendations and many more. Existing research in RMAB has contributed me…

Cited by 16SourcePDFScholar
2021

CLAIM: curriculum learning policy for influence maximization in unknown social networks

UAI 2021poster

Influence maximization is the problem of finding a small subset of nodes in a network that can maximize the diffusion of information. Recently, it has also found application in HIV prevention, substance abuse prevention, micro-finance adoption, etc., where the goal is to identify the set of peer lea…

Cited by 10SourcePDFScholar