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Related papers: DCR: Quantifying Data Contamination in LLMs Evalua…

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Data contamination poses a significant challenge to reliable LLM evaluation, where models may achieve high performance by memorizing training data rather than demonstrating genuine reasoning capabilities. We introduce RADAR (Recall vs.…

Artificial Intelligence · Computer Science 2025-10-13 Ashish Kattamuri , Harshwardhan Fartale , Arpita Vats , Rahul Raja , Ishita Prasad

The rapid advancements of Large Language Models (LLMs) tightly associate with the expansion of the training data size. However, the unchecked ultra-large-scale training sets introduce a series of potential risks like data contamination,…

Machine Learning · Computer Science 2024-06-04 Wentao Ye , Jiaqi Hu , Liyao Li , Haobo Wang , Gang Chen , Junbo Zhao

Benchmark datasets are critical for reproducible, reliable, and discriminative evaluation of LLMs. However, recent studies reveal that many benchmark datasets are included in pretraining corpora, i.e., $\textit{contaminated}$, which…

Machine Learning · Computer Science 2026-05-20 Ali Al-Lawati , Jason Lucas , Dongwon Lee , Suhang Wang

Publishing a large language model (LLM) benchmark on the Internet risks contaminating future LLMs: the benchmark may be unintentionally (or intentionally) used to train or select a model. A common mitigation is to keep the benchmark private…

Machine Learning · Computer Science 2025-10-07 Takashi Ishida , Thanawat Lodkaew , Ikko Yamane

In machine learning, contamination refers to situations where testing data leak into the training set. The issue is particularly relevant for the evaluation of the performance of Large Language Models (LLMs), which are generally trained on…

Computation and Language · Computer Science 2025-06-23 Nicolas Yax , Pierre-Yves Oudeyer , Stefano Palminteri

Automated Code Review (ACR) systems integrating Large Language Models (LLMs) are increasingly adopted in software development workflows, ranging from interactive assistants to autonomous agents in CI/CD pipelines. In this paper, we study…

Software Engineering · Computer Science 2026-04-24 Dimitris Mitropoulos , Nikolaos Alexopoulos , Georgios Alexopoulos , Diomidis Spinellis

We introduce the Dynamic Behavioral Constraint (DBC) benchmark, the first empirical framework for evaluating the efficacy of a structured, 150-control behavioral governance layer, the MDBC (Madan DBC) system, applied at inference time to…

Artificial Intelligence · Computer Science 2026-03-06 G. Madan Mohan , Veena Kiran Nambiar , Kiranmayee Janardhan

Large language models (LLMs) have shown impressive performance in reasoning benchmarks with the emergence of Chain-of-Thought (CoT), particularly in multi-choice question (MCQ). However, current works equally resolve questions regardless of…

Computation and Language · Computer Science 2024-04-04 Zijie Meng , Yan Zhang , Zhaopeng Feng , Zuozhu Liu

Large Language Models (LLMs), such as ChatGPT, have achieved impressive milestones in natural language processing (NLP). Despite their impressive performance, the models are known to pose important risks. As these models are deployed in…

Computation and Language · Computer Science 2023-10-06 Ke Shen , Mayank Kejriwal

In the pursuit of developing Large Language Models (LLMs) that adhere to societal standards, it is imperative to detect the toxicity in the generated text. The majority of existing toxicity metrics rely on encoder models trained on specific…

Computation and Language · Computer Science 2024-11-15 Hyukhun Koh , Dohyung Kim , Minwoo Lee , Kyomin Jung

The quality of datasets plays an increasingly crucial role in the research and development of modern artificial intelligence (AI). Despite the proliferation of open dataset platforms nowadays, data quality issues, such as incomplete…

Artificial Intelligence · Computer Science 2025-05-28 Benhao Huang , Yingzhuo Yu , Jin Huang , Xingjian Zhang , Jiaqi Ma

Recent advances in Vision-Language Models (VLMs) have achieved state-of-the-art performance on numerous benchmark tasks. However, the use of internet-scale, often proprietary, pretraining corpora raises a critical concern for both…

Machine Learning · Computer Science 2026-02-03 Jaden Park , Mu Cai , Feng Yao , Jingbo Shang , Soochahn Lee , Yong Jae Lee

Benchmark collections have long enabled controlled comparison and cumulative progress in Information Retrieval (IR). However, prior meta-analyses have shown that reported effectiveness gains often fail to accumulate, in part due to the use…

Information Retrieval · Computer Science 2026-04-08 Moritz Staudinger , Wojciech Kusa , Allan Hanbury

The pursuit of leaderboard rankings in Large Language Models (LLMs) has created a fundamental paradox: models excel at standardized tests while failing to demonstrate genuine language understanding and adaptability. Our systematic analysis…

Computation and Language · Computer Science 2024-12-06 Sourav Banerjee , Ayushi Agarwal , Eishkaran Singh

We are currently in an era of fierce competition among various large language models (LLMs) continuously pushing the boundaries of benchmark performance. However, genuinely assessing the capabilities of these LLMs has become a challenging…

Computation and Language · Computer Science 2024-06-04 Wenhong Zhu , Hongkun Hao , Zhiwei He , Yunze Song , Yumeng Zhang , Hanxu Hu , Yiran Wei , Rui Wang , Hongyuan Lu

Large language models (LLMs) aligned for safety often suffer from over-refusal, the tendency to reject seemingly toxic or benign prompts by misclassifying them as toxic. This behavior undermines models' helpfulness and restricts usability…

Computation and Language · Computer Science 2026-03-05 Yuxiao Lu , Lin Xu , Yang Sun , Wenjun Li , Jie Shi

Despite their strong performance on reasoning benchmarks, large language models (LLMs) have proven brittle when presented with counterfactual questions, suggesting weaknesses in their causal reasoning ability. While recent work has…

Machine Learning · Computer Science 2026-02-20 Victoria Lin , Xinnuo Xu , Rachel Lawrence , Risa Ueno , Amit Sharma , Javier Gonzalez , Niranjani Prasad

As large language models achieve impressive scores on traditional benchmarks, an increasing number of researchers are becoming concerned about benchmark data leakage during pre-training, commonly known as the data contamination problem. To…

Computation and Language · Computer Science 2024-06-27 Kun Qian , Shunji Wan , Claudia Tang , Youzhi Wang , Xuanming Zhang , Maximillian Chen , Zhou Yu

Large language models (LLMs) can be influenced by harmful or irrelevant context, which can significantly harm model performance on downstream tasks. This motivates principled designs in which LLM systems include built-in mechanisms to guard…

Artificial Intelligence · Computer Science 2026-05-29 Andrea Wynn , Metod Jazbec , Charith Peris , Rinat Khaziev , Anqi Liu , Daniel Khashabi , Eric Nalisnick

The leakage of benchmark data into the training data has emerged as a significant challenge for evaluating the capabilities of large language models (LLMs). In this work, we challenge the common assumption that small-scale contamination…

Machine Learning · Computer Science 2025-06-17 Sebastian Bordt , Suraj Srinivas , Valentyn Boreiko , Ulrike von Luxburg