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The POPLMARK Challenge comprises a set of problems intended to measure the strength of reasoning systems in the realm of mechanizing programming language meta-theory at the time the challenge was enunciated. Included in the collection is…

Logic in Computer Science · Computer Science 2021-12-20 Gopalan Nadathur

Although Large Language Models (LLMs) have demonstrated impressive formal reasoning abilities, they often break down when problems require complex proof planning. One promising approach for improving LLM reasoning abilities involves…

Artificial Intelligence · Computer Science 2026-01-27 Joseph Cotnareanu , Didier Chetelat , Yingxue Zhang , Mark Coates

Written answers to open-ended questions can have a higher long-term effect on learning than multiple-choice questions. However, it is critical that teachers immediately review the answers, and ask to redo those that are incoherent. This can…

Computation and Language · Computer Science 2023-04-25 Felipe Urrutia , Roberto Araya

This paper introduces a novel task to evaluate the robust understanding capability of Large Multimodal Models (LMMs), termed $\textbf{Unsolvable Problem Detection (UPD)}$. Multiple-choice question answering (MCQA) is widely used to assess…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Atsuyuki Miyai , Jingkang Yang , Jingyang Zhang , Yifei Ming , Qing Yu , Go Irie , Yixuan Li , Hai Li , Ziwei Liu , Kiyoharu Aizawa

The progress of Large Language Models (LLMs) like ChatGPT raises the question of how they can be integrated into education. One hope is that they can support mathematics learning, including word-problem solving. Since LLMs can handle…

Computation and Language · Computer Science 2025-08-12 Anselm R. Strohmaier , Wim Van Dooren , Kathrin Seßler , Brian Greer , Lieven Verschaffel

Exact MLE for generalized linear mixed models (GLMMs) is a long-standing problem unsolved until today. The proposed research solves the problem. In this problem, the main difficulty is caused by intractable integrals in the likelihood…

Methodology · Statistics 2024-10-14 Tonglin Zhang

The ambition constrained validity and the model witness problems in the logic UCL, for reasoning about circuits with unreliable gates, are analyzed. Moreover, two additional problems, motivated by the applications, are studied. One consists…

Logic in Computer Science · Computer Science 2016-08-02 J. Rasga , C. Sernadas , P. Mateus , A. Sernadas

A longstanding open problem in lambda calculus is whether there exist continuous models of the untyped lambda calculus whose theory is exactly the least lambda-theory lambda-beta or the least sensible lambda-theory H (generated by equating…

Logic in Computer Science · Computer Science 2013-04-01 Antonio Bucciarelli , Alberto Carraro , Antonino Salibra

While LLMs have revolutionized the field of machine learning due to their high performance on a strikingly wide range of problems, they are also known to hallucinate false answers and underperform on less canonical versions of the same…

Machine Learning · Computer Science 2025-09-11 Kavi Gupta , Kate Sanders , Armando Solar-Lezama

Large language model (LLM) agents exhibit strong mathematical problem-solving abilities and can even solve International Mathematical Olympiad (IMO) level problems with the assistance of formal proof systems. However, due to weak heuristics…

Artificial Intelligence · Computer Science 2026-03-06 Haiteng Zhao , Junhao Shen , Yiming Zhang , Songyang Gao , Kuikun Liu , Tianyou Ma , Fan Zheng , Dahua Lin , Wenwei Zhang , Kai Chen

We identify a subproblem of the model-checking problem for the epistemic \mu-calculus which is decidable. Formulas in the instances of this subproblem allow free variables within the scope of epistemic modalities in a restricted form that…

Computer Science and Game Theory · Computer Science 2013-10-28 Rodica Bozianu , Catalin Dima , Constantin Enea

Large Language Models (LLMs) are becoming vital tools that help us solve and understand complex problems by acting as digital assistants. LLMs can generate convincing explanations, even when only given the inputs and outputs of these…

Computation and Language · Computer Science 2024-10-14 Rohan Ajwani , Shashidhar Reddy Javaji , Frank Rudzicz , Zining Zhu

We build \textbf{AICrypto}, a comprehensive benchmark designed to evaluate the cryptography capabilities of large language models (LLMs). The benchmark comprises 135 multiple-choice questions, 150 capture-the-flag challenges, and 30 proof…

Cryptography and Security · Computer Science 2026-05-28 Yu Wang , Yijian Liu , Liheng Ji , Han Luo , Wenjie Li , Xiaofei Zhou , Chiyun Feng , Puji Wang , Yuhan Cao , Geyuan Zhang , Xiaojian Li , Rongwu Xu , Yilei Chen , Tianxing He

We survey results on the hardness of approximating combinatorial optimization problems.

Computational Complexity · Computer Science 2007-05-23 Luca Trevisan

While large language models (LLMs) have showcased impressive capabilities, they struggle with addressing legal queries due to the intricate complexities and specialized expertise required in the legal field. In this paper, we introduce…

Computation and Language · Computer Science 2024-06-24 Zhiwei Fei , Songyang Zhang , Xiaoyu Shen , Dawei Zhu , Xiao Wang , Maosong Cao , Fengzhe Zhou , Yining Li , Wenwei Zhang , Dahua Lin , Kai Chen , Jidong Ge

Existing benchmarks for evaluating mathematical reasoning in large language models (LLMs) rely primarily on competition problems, formal proofs, or artificially challenging questions -- failing to capture the nature of mathematics…

Artificial Intelligence · Computer Science 2025-10-21 Jie Zhang , Cezara Petrui , Kristina Nikolić , Florian Tramèr

The mathematical capabilities of AI systems are complex and multifaceted. Most existing research has predominantly focused on the correctness of AI-generated solutions to mathematical problems. In this work, we argue that beyond producing…

Computation and Language · Computer Science 2024-10-25 Junyi Ye , Jingyi Gu , Xinyun Zhao , Wenpeng Yin , Guiling Wang

We present the findings of the Machine Learning Model Attribution Challenge. Fine-tuned machine learning models may derive from other trained models without obvious attribution characteristics. In this challenge, participants identify the…

Machine Learning · Computer Science 2023-02-20 Elizabeth Merkhofer , Deepesh Chaudhari , Hyrum S. Anderson , Keith Manville , Lily Wong , João Gante

Product classification is a crucial task in international trade, as compliance regulations are verified and taxes and duties are applied based on product categories. Manual classification of products is time-consuming and error-prone, and…

Computation and Language · Computer Science 2024-10-16 Sina Gholamian , Gianfranco Romani , Bartosz Rudnikowicz , Stavroula Skylaki

With the development of Large Language Models (LLMs), numerous efforts have revealed their vulnerabilities to jailbreak attacks. Although these studies have driven the progress in LLMs' safety alignment, it remains unclear whether LLMs have…

Cryptography and Security · Computer Science 2025-09-16 Yu Yan , Sheng Sun , Zhe Wang , Yijun Lin , Zenghao Duan , zhifei zheng , Min Liu , Zhiyi yin , Jianping Zhang