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Xiangru Tang

35 accepted papers

2026

Beyond Magic Words: Sharpness-Aware Prompt Evolving for Robust Large Language Models with TARE

ICLR 2026poster

The performance of Large Language Models (LLMs) hinges on carefully engineered prompts. However, prevailing prompt optimization methods, ranging from heuristic edits and reinforcement learning to evolutionary search, primarily target point-wise accuracy. They seldom enforce paraphrase invariance or…

Cited by 0SourceScholar
2026

Eigen-1: Scientific Reasoning through Adaptive Multi-Agent Refinement and Monitor-based RAG

ICLR 2026poster

Large language models (LLMs) have recently shown strong progress on scientific reasoning, yet two major bottlenecks remain. First, explicit retrieval fragments reasoning, imposing a hidden tool tax of extra tokens and steps. Second, multi-agent pipelines often dilute strong solutions by averaging ac…

Cited by 0SourcecodeScholar
2026

MMedAgent-RL: Optimizing Multi-Agent Collaboration for Multimodal Medical Reasoning

ICLR 2026poster

Medical Large Vision-Language Models (Med-LVLMs) have shown strong potential in multimodal diagnostic tasks. However, existing single-agent models struggle to generalize across diverse medical specialties, limiting their performance. Recent efforts introduce multi-agent collaboration frameworks insp…

Cited by 0SourceScholar
2026

MedAgentGym: A Scalable Agentic Training Environment for Code-Centric Reasoning in Biomedical Data Science

ICLR 2026oral

We introduce MedAgentGym, a scalable and interactive training environment designed to enhance coding-based biomedical reasoning capabilities in large language model (LLM) agents. MedAgentGym comprises 72,413 task instances across 129 categories derived from 12 authentic real-world biomedical scenari…

Cited by 0SourcecodeScholar
2026

ReasoningBank: Scaling Agent Self-Evolving with Reasoning Memory

ICLR 2026poster

With the growing adoption of large language model (LLM) agents in persistent, real-world roles, they naturally encounter continuous streams of tasks and interactions. A key limitation, however, is their failure to learn from this accumulated experience, forcing them to discard valuable insights and…

Cited by 0SourcecodeScholar
2026

ScienceBoard: Evaluating Multimodal Autonomous Agents in Realistic Scientific Workflows

ICLR 2026poster

Large Language Models (LLMs) have extended their impact beyond Natural Language Processing, substantially fostering the development of interdisciplinary research. Recently, various LLM-based agents have been developed to assist scientific discovery progress across multiple aspects and domains. Among…

Cited by 0SourcecodeScholar
2025

Beyond Chemical QA: Evaluating LLM's Chemical Reasoning with Modular Chemical Operations

NeurIPS 2025poster

While large language models (LLMs) with Chain-of-Thought (CoT) reasoning excel in mathematics and coding, their potential for systematic reasoning in chemistry, a domain demanding rigorous structural analysis for real-world tasks like drug design and reaction engineering, remains untapped. Current b…

Cited by 0SourceScholar
2025

ChemAgent: Self-updating Memories in Large Language Models Improves Chemical Reasoning

ICLR 2025poster

Chemical reasoning usually involves complex, multi-step processes that demand precise calculations, where even minor errors can lead to cascading failures. Furthermore, large language models (LLMs) encounter difficulties handling domain-specific formulas, executing reasoning steps accurately, and in…

2025

DyFlow: Dynamic Workflow Framework for Agentic Reasoning

NeurIPS 2025poster

Agent systems based on large language models (LLMs) have shown great potential in complex reasoning tasks, but building efficient and generalizable workflows remains a major challenge. Most existing approaches rely on manually designed processes, which limits their adaptability across different task…

Cited by 0SourceScholar
2025

Improving Context Fidelity via Native Retrieval-Augmented Reasoning

EMNLP 2025

Large language models (LLMs) often struggle with context fidelity, producing inconsistent answers when responding to questions based on provided information. Existing approaches either rely on expensive supervised fine-tuning to generate evidence post-answer or train models to perform web searches w

2025

KORGym: A Dynamic Game Platform for LLM Reasoning Evaluation

NeurIPS 2025spotlight

Recent advancements in large language models (LLMs) underscore the need for more comprehensive evaluation methods to accurately assess their reasoning capabilities. Existing benchmarks are often domain-specific and thus cannot fully capture an LLM’s general reasoning potential. To address this limit…

Cited by 0SourcecodeScholar
2025

Med-PRM: Medical Reasoning Models with Stepwise, Guideline-verified Process Rewards

EMNLP 2025

Large language models have shown promise in clinical decision making, but current approaches struggle to localize and correct errors at specific steps of the reasoning process. This limitation is critical in medicine, where identifying and addressing reasoning errors is essential for accurate diagno

Cited by 0SourcePDFScholar
2025

OAgents: An Empirical Study of Building Effective Agents

EMNLP 2025

Recently, Agentic AI has become an increasingly popular field of research. However, we argue that current practices on agent research are far from standard, rigorous scientific research, which makes it hard to conduct apples-to-apples comparisons among and against existing methods. As a result, it i

2025

OpenHands: An Open Platform for AI Software Developers as Generalist Agents

ICLR 2025poster

Software is one of the most powerful tools that we humans have at our disposal; it allows a skilled programmer to interact with the world in complex and profound ways. At the same time, thanks to improvements in large language models (LLMs), there has also been a rapid development in AI agents that…

Cited by 32SourcePDFScholar
2025

SciArena: An Open Evaluation Platform for Non-Verifiable Scientific Literature-Grounded Tasks

NeurIPS 2025spotlight

We present SciArena, an open and collaborative platform for evaluating foundation models on scientific literature-grounded tasks. Unlike traditional benchmarks for scientific literature understanding and synthesis, SciArena engages the research community directly, following the Chatbot Arena evalua…

Cited by 0SourceScholar
2025

Self-Supervised Prompt Optimization

EMNLP 2025

Well-designed prompts are crucial for enhancing Large language models’ (LLMs) reasoning capabilities while aligning their outputs with task requirements across diverse domains. However, manually designed prompts require expertise and iterative experimentation. While existing prompt optimization meth

2025

WebDancer: Towards Autonomous Information Seeking Agency

NeurIPS 2025poster

Addressing intricate real-world problems necessitates in-depth information seeking and multi-step reasoning. Recent progress in agentic systems, exemplified by Deep Research, underscores the potential for autonomous multi-step research. In this work, we present a cohesive paradigm for building end…

Cited by 0SourcecodeScholar
2024

DocMath-Eval: Evaluating Math Reasoning Capabilities of LLMs in Understanding Long and Specialized Documents

ACL 2024long

Recent LLMs have demonstrated remarkable performance in solving exam-like math word problems. However, the degree to which these numerical reasoning skills are effective in real-world scenarios, particularly in expert domains, is still largely unexplored. This paper introduces DocMath-Eval, a compre…

2024

FinDVer: Explainable Claim Verification over Long and Hybrid-content Financial Documents

EMNLP 2024main

We introduce FinDVer, a comprehensive benchmark specifically designed to evaluate the explainable claim verification capabilities of LLMs in the context of understanding and analyzing long, hybrid-content financial documents. FinDVer contains 4,000 expert-annotated examples across four subsets, each…

2024

Investigating Data Contamination in Modern Benchmarks for Large Language Models

NAACL 2024long

Recent observations have underscored a disparity between the inflated benchmark scores and the actual performance of LLMs, raising concerns about potential contamination of evaluation benchmarks. This issue is especially critical for closed-source models and certain open-source models where training…

Cited by 101SourcePDFScholar
2024

MIMIR: A Customizable Agent Tuning Platform for Enhanced Scientific Applications

EMNLP 2024system demonstrations

Recently, large language models (LLMs) have evolved into interactive agents, proficient in planning, tool use, and task execution across various tasks. However, without agent-tuning, open-source models like LLaMA2 currently struggle to match the efficiency of larger models such as GPT-4 in scientifi…

2024

MedAgents: Large Language Models as Collaborators for Zero-shot Medical Reasoning

ACL 2024findings

Large language models (LLMs), despite their remarkable progress across various general domains, encounter significant barriers in medicine and healthcare. This field faces unique challenges such as domain-specific terminologies and reasoning over specialized knowledge. To address these issues, we pr…

2024

OctoPack: Instruction Tuning Code Large Language Models

ICLR 2024spotlight

Finetuning large language models (LLMs) on instructions leads to vast performance improvements on natural language tasks. We apply instruction tuning using code, leveraging the natural structure of Git commits, which pair code changes with human instructions. We compile CommitPack: 4 terabytes of Gi…

2024

OpenT2T: An Open-Source Toolkit for Table-to-Text Generation

EMNLP 2024system demonstrations

Table data is pervasive in various industries, and its comprehension and manipulation demand significant time and effort for users seeking to extract relevant information. Consequently, an increasing number of studies have been directed towards table-to-text generation tasks. However, most existing…

2024

PRESTO: Progressive Pretraining Enhances Synthetic Chemistry Outcomes

EMNLP 2024finding

Multimodal Large Language Models (MLLMs) have seen growing adoption across various scientific disciplines. These advancements encourage the investigation of molecule-text modeling within synthetic chemistry, a field dedicated to designing and conducting chemical reactions to synthesize new compounds…

2024

Struc-Bench: Are Large Language Models Good at Generating Complex Structured Tabular Data?

NAACL 2024short

Despite the remarkable capabilities of Large Language Models (LLMs) like GPT-4, producing complex, structured tabular data remains challenging. Our study assesses LLMs’ proficiency in structuring tables and introduces a novel fine-tuning method, cognizant of data structures, to bolster their perform…

2024

ToolLLM: Facilitating Large Language Models to Master 16000+ Real-world APIs

ICLR 2024spotlight

Despite the advancements of open-source large language models (LLMs), e.g., LLaMA, they remain significantly limited in tool-use capabilities, i.e., using external tools (APIs) to fulfill human instructions. The reason is that current instruction tuning largely focuses on basic language tasks but ig…

2024

Unveiling the Spectrum of Data Contamination in Language Model: A Survey from Detection to Remediation

ACL 2024findings

Data contamination has garnered increased attention in the era of Large language models (LLMs) due to the reliance on extensive internet-derived training corpora. The issue of training corpus overlap with evaluation benchmarks—referred to as contamination—has been the focus of significant recent res…

Cited by 10SourcePDFScholar
2023

Crosslingual Generalization through Multitask Finetuning

ACL 2023long

Multitask prompted finetuning (MTF) has been shown to help large language models generalize to new tasks in a zero-shot setting, but so far explorations of MTF have focused on English data and models. We apply MTF to the pretrained multilingual BLOOM and mT5 model families to produce finetuned varia…

2023

QTSumm: Query-Focused Summarization over Tabular Data

EMNLP 2023long main

People primarily consult tables to conduct data analysis or answer specific questions. Text generation systems that can provide accurate table summaries tailored to users' information needs can facilitate more efficient access to relevant data insights. Motivated by this, we define a new query-focu…

Cited by 0SourcecodeScholar
2023

RWKV: Reinventing RNNs for the Transformer Era

EMNLP 2023long findings

Transformers have revolutionized almost all natural language processing (NLP) tasks but suffer from memory and computational complexity that scales quadratically with sequence length. In contrast, recurrent neural networks (RNNs) exhibit linear scaling in memory and computational requirements but st…

Cited by 0SourceScholar
2023

RobuT: A Systematic Study of Table QA Robustness Against Human-Annotated Adversarial Perturbations

ACL 2023long

Despite significant progress having been made in question answering on tabular data (Table QA), it’s unclear whether, and to what extent existing Table QA models are robust to task-specific perturbations, e.g., replacing key question entities or shuffling table columns. To systematically study the r…

2022

CONFIT: Toward Faithful Dialogue Summarization with Linguistically-Informed Contrastive Fine-tuning

NAACL 2022long

Factual inconsistencies in generated summaries severely limit the practical applications of abstractive dialogue summarization. Although significant progress has been achieved by using pre-trained neural language models, substantial amounts of hallucinated content are found during the human evaluati…

Cited by 71SourcePDFScholar
2022

Investigating Crowdsourcing Protocols for Evaluating the Factual Consistency of Summaries

NAACL 2022long

Current pre-trained models applied for summarization are prone to factual inconsistencies that misrepresent the source text. Evaluating the factual consistency of summaries is thus necessary to develop better models. However, the human evaluation setup for evaluating factual consistency has not been…

Cited by 20SourcePDFScholar
2021

DART: Open-Domain Structured Data Record to Text Generation

NAACL 2021long

We present DART, an open domain structured DAta Record to Text generation dataset with over 82k instances (DARTs). Data-to-text annotations can be a costly process, especially when dealing with tables which are the major source of structured data and contain nontrivial structures. To this end, we pr…