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Dataset Condensation is a newly emerging technique aiming at learning a tiny dataset that captures the rich information encoded in the original dataset. As the size of datasets contemporary machine learning models rely on becomes…

Machine Learning · Computer Science 2022-10-18 Justin Cui , Ruochen Wang , Si Si , Cho-Jui Hsieh

Pre-trained neural language models give high performance on natural language inference (NLI) tasks. But whether they actually understand the meaning of the processed sequences remains unclear. We propose a new diagnostics test suite which…

Computation and Language · Computer Science 2021-04-13 Aarne Talman , Marianna Apidianaki , Stergios Chatzikyriakidis , Jörg Tiedemann

Reinforcement learning (RL) post-training has shown to improve reasoning in large language models (LLMs). However, there has been little exploration on the problem of data contamination in RL post-training, potentially undermining…

Machine Learning · Computer Science 2026-05-29 Minju Gwak , Minseo Kwak , Dongseok Lee , Guijin Son , Alan Ritter , Jaehyung Kim

Evidence-enhanced detectors present remarkable abilities in identifying malicious social text. However, the rise of large language models (LLMs) brings potential risks of evidence pollution to confuse detectors. This paper explores…

Computation and Language · Computer Science 2025-05-30 Herun Wan , Minnan Luo , Zhixiong Su , Guang Dai , Xiang Zhao

Given how large parts of publicly available text are crawled to pretrain large language models (LLMs), data creators increasingly worry about the inclusion of their proprietary data for model training without attribution or licensing. Their…

Machine Learning · Computer Science 2025-06-10 Saksham Rastogi , Pratyush Maini , Danish Pruthi

Pretrained large language models have become indispensable for solving various natural language processing (NLP) tasks. However, safely deploying them in real world applications is challenging because they generate toxic content. To address…

Computation and Language · Computer Science 2023-02-16 Shrimai Prabhumoye , Mostofa Patwary , Mohammad Shoeybi , Bryan Catanzaro

Data corruption, including missing and noisy data, poses significant challenges in real-world machine learning. This study investigates the effects of data corruption on model performance and explores strategies to mitigate these effects…

Machine Learning · Computer Science 2025-05-22 Qi Liu , Wanjing Ma

Large language models (LLMs) offer impressive performance in various zero-shot and few-shot tasks. However, their success in zero-shot and few-shot settings may be affected by task contamination, a potential limitation that has not been…

Computation and Language · Computer Science 2024-01-02 Changmao Li , Jeffrey Flanigan

Understanding human intent is a complex, high-level task for large language models (LLMs), requiring analytical reasoning, contextual interpretation, dynamic information aggregation, and decision-making under uncertainty. Real-world public…

Computation and Language · Computer Science 2025-10-21 Xiaozhe Li , TianYi Lyu , Siyi Yang , Yuxi Gong , Yizhao Yang , Jinxuan Huang , Ligao Zhang , Zhuoyi Huang , Qingwen Liu

Real-world data analysis tasks often come with under-specified goals and unclean data. User interaction is necessary to understand and disambiguate a user's intent, and hence, essential to solving these complex tasks. Existing benchmarks…

Medical diagnostics is a high-stakes and complex domain that is critical to patient care. However, current evaluations of large language models (LLMs) remain limited in capturing key challenges of clinical diagnostic scenarios. Most rely on…

Computation and Language · Computer Science 2026-04-21 Xiangxu Zhang , Lei Li , Yanyun Zhou , Xiao Zhou , Yingying Zhang , Xian Wu

The rapid development of Large Language Models (LLMs) like GPT-4, Claude-3, and Gemini has transformed the field of natural language processing. However, it has also resulted in a significant issue known as Benchmark Data Contamination…

Computation and Language · Computer Science 2024-06-07 Cheng Xu , Shuhao Guan , Derek Greene , M-Tahar Kechadi

Large language models (LLMs) are pre-trained and post-trained on vast amounts of loosely curated data, raising the possibility that these models may have been trained on proprietary datasets or the same benchmarks used for evaluation. This…

Machine Learning · Computer Science 2026-05-11 Pengrun Huang , Kamalika Chaudhuri , Yu-Xiang Wang

Neural approaches to ranking based on pre-trained language models are highly effective in ad-hoc search. However, the computational expense of these models can limit their application. As such, a process known as knowledge distillation is…

Information Retrieval · Computer Science 2024-11-05 Vishakha Suresh Kalal , Andrew Parry , Sean MacAvaney

The problem of model collapse has presented new challenges in iterative training of generative models, where such training with synthetic data leads to an overall degradation of performance. This paper looks at the problem from a…

Machine Learning · Statistics 2026-02-19 Soham Bakshi , Sunrit Chakraborty

The deployment of Large Language Models (LLMs) in high-stakes clinical settings demands rigorous and reliable evaluation. However, existing medical benchmarks remain static, suffering from two critical limitations: (1) data contamination,…

Artificial Intelligence · Computer Science 2026-02-12 Zhiling Yan , Dingjie Song , Zhe Fang , Yisheng Ji , Xiang Li , Quanzheng Li , Lichao Sun

If LLM training data is polluted with benchmark test data, then benchmark performance gives biased estimates of out-of-distribution (OOD) generalization. Typical decontamination filters use n-gram matching which fail to detect semantic…

Machine Learning · Computer Science 2026-02-16 Ari Spiesberger , Juan J. Vazquez , Nicky Pochinkov , Tomáš Gavenčiak , Peli Grietzer , Gavin Leech , Nandi Schoots

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 Data Contamination (BDC)-the inclusion of benchmark testing samples in the training set-has raised increasing concerns in Large Language Model (LLM) evaluation, leading to falsely inflated performance estimates and undermining…

Artificial Intelligence · Computer Science 2025-03-21 Yifan Sun , Han Wang , Dongbai Li , Gang Wang , Huan Zhang

This paper investigates the ability of large language models (LLMs) to recognise and solve tasks which have been obfuscated beyond recognition. Focusing on competitive programming and benchmark tasks (LeetCode and MATH), we compare…

Machine Learning · Computer Science 2025-05-30 Radzim Sendyka , Christian Cabrera , Andrei Paleyes , Diana Robinson , Neil Lawrence
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