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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

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

The Large Language Models (LLMs) have demonstrated great potential in code-related tasks. However, most research focuses on improving the output quality of LLMs (e.g., correctness), and less attention has been paid to the LLM input (e.g.,…

Software Engineering · Computer Science 2025-08-19 Zhipeng Xue , Xiaoting Zhang , Zhipeng Gao , Xing Hu , Shan Gao , Xin Xia , Shanping Li

Large language models (LLMs) are now ubiquitous in user-facing applications, yet they still generate undesirable toxic outputs, including profanity, vulgarity, and derogatory remarks. Although numerous detoxification methods exist, most…

Computation and Language · Computer Science 2025-10-24 Agam Goyal , Vedant Rathi , William Yeh , Yian Wang , Yuen Chen , Hari Sundaram

Federated Learning (FL) is a promising distributed learning approach that enables multiple clients to collaboratively train a shared global model. However, recent studies show that FL is vulnerable to various poisoning attacks, which can…

Cryptography and Security · Computer Science 2023-10-23 Xinyu Zhang , Qingyu Liu , Zhongjie Ba , Yuan Hong , Tianhang Zheng , Feng Lin , Li Lu , Kui Ren

Multivariate time series (MTS) anomaly detection is essential for maintaining the reliability of industrial systems, yet real-world deployment is hindered by two critical challenges: training data contamination (noises and hidden anomalies)…

Machine Learning · Computer Science 2025-10-28 Songhan Zhang , Yuanhao Lai , Pengfei Zheng , Boxi Yu , Xiaoying Tang , Qiuai Fu , Pinjia He

Large language models (LLMs) have demonstrated great performance across various benchmarks, showing potential as general-purpose task solvers. However, as LLMs are typically trained on vast amounts of data, a significant concern in their…

Computation and Language · Computer Science 2025-05-13 Yujuan Fu , Ozlem Uzuner , Meliha Yetisgen , Fei Xia

The rapid evolution of code largelanguage models underscores the need for effective and transparent benchmarking of their reasoning capabilities. However, the current benchmarking approach heavily depends on publicly available,…

Software Engineering · Computer Science 2025-06-05 Simin Chen , Pranav Pusarla , Baishakhi Ray

The central challenge in robotic manipulation of deformable objects lies in aligning high-level semantic instructions with physical interaction points under complex appearance and texture variations. Due to near-infinite degrees of freedom,…

Robotics · Computer Science 2026-01-29 Wanjun Jia , Kang Li , Fan Yang , Mengfei Duan , Wenrui Chen , Yiming Jiang , Hui Zhang , Kailun Yang , Zhiyong Li , Yaonan Wang

Dataset contamination, where evaluation datasets overlap with pre-training corpora, inflates performance metrics and undermines the reliability of model evaluations. Measuring dataset contamination thus becomes essential to ensure that…

Machine Learning · Computer Science 2025-05-22 Hyeong Kyu Choi , Maxim Khanov , Hongxin Wei , Yixuan Li

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

Large Language Models (LLMs) offer new potential for automating documentation-to-code traceability, yet their capabilities remain underexplored. We present a comprehensive evaluation of LLMs (Claude 3.5 Sonnet, GPT-4o, and o3-mini) in…

Software Engineering · Computer Science 2025-08-08 Ebube Alor , SayedHassan Khatoonabadi , Emad Shihab

Software supply chain attacks targeting the npm ecosystem have become increasingly sophisticated, leveraging obfuscation and complex logic to evade traditional detection mechanisms. Recently, large language models (LLMs) have attracted…

Cryptography and Security · Computer Science 2026-01-13 Dang-Khoa Nguyen , Gia-Thang Ho , Quang-Minh Pham , Tuyet A. Dang-Thi , Minh-Khanh Vu , Thanh-Cong Nguyen , Phat T. Tran-Truong , Duc-Ly Vu

Large language models (LLMs) often produce unsupported or unverifiable content, known as "hallucinations." To mitigate this, retrieval-augmented LLMs incorporate citations, grounding the content in verifiable sources. Despite such…

Information Retrieval · Computer Science 2024-08-26 Weijia Zhang , Mohammad Aliannejadi , Yifei Yuan , Jiahuan Pei , Jia-Hong Huang , Evangelos Kanoulas

Large Language Models (LLMs) have transformed code completion tasks, providing context-based suggestions to boost developer productivity in software engineering. As users often fine-tune these models for specific applications, poisoning and…

Cryptography and Security · Computer Science 2024-06-12 Shenao Yan , Shen Wang , Yue Duan , Hanbin Hong , Kiho Lee , Doowon Kim , Yuan Hong

Data contamination in model evaluation has become increasingly prevalent with the growing popularity of large language models. It allows models to "cheat" via memorisation instead of displaying true capabilities. Therefore, contamination…

Computation and Language · Computer Science 2024-01-30 Yucheng Li , Frank Guerin , Chenghua Lin

Large language models (LLMs) have demonstrated impressive reasoning abilities across a wide range of tasks, but data contamination undermines the objective evaluation of these capabilities. This problem is further exacerbated by malicious…

Machine Learning · Computer Science 2026-05-22 Yifan Lan , Yuanpu Cao , Hanyu Wang , Lu Lin , Jinghui Chen

Data contamination in model evaluation is getting increasingly prevalent as the massive training corpora of large language models often unintentionally include benchmark samples. Therefore, contamination analysis has became an inevitable…

Computation and Language · Computer Science 2023-09-28 Yucheng Li

Transformer-based large language models (LLMs) are comprised of billions of parameters arranged in deep and wide computational graphs, but it is not clear that they exploit their full capacity for all inputs. We introduce the s-Trace method…

Computation and Language · Computer Science 2026-05-27 Corentin Kervadec , Iuliia Lysova , Iuri Macocco , Marco Baroni , Gemma Boleda

The proliferation of fake news has emerged as a severe societal problem, raising significant interest from industry and academia. While existing deep-learning based methods have made progress in detecting fake news accurately, their…

Computation and Language · Computer Science 2024-05-29 Hui Liu , Wenya Wang , Haoru Li , Haoliang Li