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Despite the widespread application of Large Language Models (LLMs) across various domains, they frequently exhibit overconfidence when encountering uncertain scenarios, yet existing solutions primarily rely on evasive responses (e.g., "I…

Artificial Intelligence · Computer Science 2025-06-03 Jingyu Liu , Jingquan Peng , xiaopeng Wu , Xubin Li , Tiezheng Ge , Bo Zheng , Yong Liu

With the increasing use of large language models (LLMs), ensuring reliable performance in diverse, real-world environments is essential. Despite their remarkable achievements, LLMs often struggle with adversarial inputs, significantly…

Computation and Language · Computer Science 2024-06-18 Yuqing Wang , Yun Zhao

Effective abstention (EA), recognizing evidence insufficiency and refraining from answering, is critical for reliable multimodal systems. Yet existing evaluation paradigms for vision-language models (VLMs) and multi-agent systems (MAS)…

Computation and Language · Computer Science 2026-04-17 Nishanth Madhusudhan , Vikas Yadav , Alexandre Lacoste

Counterfactual reasoning is widely recognized as one of the most challenging and intricate aspects of causality in artificial intelligence. In this paper, we evaluate the performance of large language models (LLMs) in counterfactual…

Computation and Language · Computer Science 2026-04-14 Yuefei Chen , Vivek K. Singh , Jing Ma , Ruixiang Tang

The application scope of large language models (LLMs) is increasingly expanding. In practical use, users might provide feedback based on the model's output, hoping for a responsive model that can complete responses according to their…

Computation and Language · Computer Science 2024-07-25 Jianhao Yan , Yun Luo , Yue Zhang

Existing tabular reasoning benchmarks mostly test models on small, uniform tables, underrepresenting the complexity of real-world data and giving an incomplete view of Large Language Models' (LLMs) reasoning abilities. Real tables are long,…

Computation and Language · Computer Science 2025-11-07 Nikhil Abhyankar , Purvi Chaurasia , Sanchit Kabra , Ananya Srivastava , Vivek Gupta , Chandan K. Reddy

We introduce seqBench, a parametrized benchmark for probing sequential reasoning limits in Large Language Models (LLMs) through precise, multi-dimensional control over several key complexity dimensions. seqBench allows systematic variation…

Artificial Intelligence · Computer Science 2025-09-23 Mohammad Ramezanali , Mo Vazifeh , Paolo Santi

We develop a principled procedure for determining when a large language model (LLM) should abstain from responding (e.g., by saying "I don't know") in a general domain, instead of resorting to possibly "hallucinating" a non-sensical or…

Large language models (LLMs) are increasingly trained to abstain on difficult questions by answering unknown. However, we observe that LLMs often misuse this option: they output unknown even when LLMs can actually solve the questions, or…

Computation and Language · Computer Science 2026-01-07 Zipeng Ling , Yuehao Tang , Shuliang Liu , Junqi Yang , Shenghong Fu , Chen Huang , Kejia Huang , Yao Wan , Zhichao Hou , Xuming Hu

Large Language Models (LLMs) are being increasingly used in software engineering tasks, with an increased focus on bug report resolution over the past year. However, most proposed systems fail to properly handle uncertain or incorrect…

Software Engineering · Computer Science 2025-06-24 Noble Saji Mathews , Meiyappan Nagappan

Large Language Models (LLMs) are increasingly excelling and outpacing human performance on many tasks. However, to improve LLM reasoning, researchers either rely on ad-hoc generated datasets or formal mathematical proof systems such as the…

Artificial Intelligence · Computer Science 2025-11-03 Nikolaus Holzer , William Fishell , Baishakhi Ray , Mark Santolucito

There is an increasing body of work using Large Language Models (LLMs) as agents for orchestrating workflows and making decisions in domains that require planning and multi-step reasoning. As a result, it is imperative to evaluate LLMs on…

Artificial Intelligence · Computer Science 2026-03-03 Harsha Kokel , Michael Katz , Kavitha Srinivas , Shirin Sohrabi

Multimodal large language models (MLLMs) have shown strong capabilities across a broad range of benchmarks. However, most existing evaluations focus on passive inference, where models perform step-by-step reasoning under complete…

Computation and Language · Computer Science 2025-10-20 Hongcheng Liu , Pingjie Wang , Yuhao Wang , Siqu Ou , Yanfeng Wang , Yu Wang

Large Language Models (LLMs) have shown remarkable capabilities in manipulating natural language across multiple applications, but their ability to handle simple reasoning tasks is often questioned. In this work, we aim to provide a…

Computation and Language · Computer Science 2025-05-05 Alessandro Raganato , Rafael Peñaloza , Marco Viviani , Gabriella Pasi

Large Language Models (LLMs) have advanced Table Question Answering, where most queries can be answered by extracting information or simple aggregation. However, a common class of real-world queries is implicitly predictive, requiring the…

Computation and Language · Computer Science 2026-05-01 An-Yang Ji , Jun-Peng Jiang , De-Chuan Zhan , Han-Jia Ye

Can large language models (LLMs) express their uncertainty in situations where they lack sufficient parametric knowledge to generate reasonable responses? This work aims to systematically investigate LLMs' behaviors in such situations,…

Computation and Language · Computer Science 2024-02-19 Genglin Liu , Xingyao Wang , Lifan Yuan , Yangyi Chen , Hao Peng

Mitigating hallucinations in Large Language Models (LLMs) is critical for their reliable deployment. Existing methods typically fine-tune LLMs to abstain from answering questions beyond their knowledge scope. However, these methods often…

Computation and Language · Computer Science 2025-10-29 Hao An , Yang Xu

Recent progress in Large Reasoning Models (LRMs) has significantly enhanced the reasoning abilities of Large Language Models (LLMs), empowering them to tackle increasingly complex tasks through reflection capabilities, such as making…

Computation and Language · Computer Science 2025-06-26 Jianghao Chen , Zhenlin Wei , Zhenjiang Ren , Ziyong Li , Jiajun Zhang

Recent studies have raised significant concerns regarding the reliability of current mathematics benchmarks, highlighting issues such as simplistic design and potential data contamination. Consequently, developing a reliable benchmark that…

Computation and Language · Computer Science 2025-08-14 Zijin Hong , Hao Wu , Su Dong , Junnan Dong , Yilin Xiao , Yujing Zhang , Zhu Wang , Feiran Huang , Linyi Li , Hongxia Yang , Xiao Huang

Medical question answering (QA) benchmarks often focus on multiple-choice or fact-based tasks, leaving open-ended answers to real patient questions underexplored. This gap is particularly critical in mental health, where patient questions…

Computation and Language · Computer Science 2026-05-15 Yahan Li , Jifan Yao , John Bosco S. Bunyi , Adam C. Frank , Angel Hsing-Chi Hwang , Ruishan Liu