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The widespread adoption of synthetic data raises new questions about how models generating the data can influence other large language models (LLMs) via distilled data. To start, our work exhaustively characterizes the impact of passive…

Computation and Language · Computer Science 2024-07-22 Luísa Shimabucoro , Sebastian Ruder , Julia Kreutzer , Marzieh Fadaee , Sara Hooker

E-commerce platforms and payment solution providers face increasingly sophisticated fraud schemes, ranging from identity theft and account takeovers to complex money laundering operations that exploit the speed and anonymity of digital…

Artificial Intelligence · Computer Science 2026-01-12 Cooper Lin , Yanting Zhang , Maohao Ran , Wei Xue , Hongwei Fan , Yibo Xu , Zhenglin Wan , Sirui Han , Yike Guo , Jun Song

The performance of Dense retrieval (DR) is significantly influenced by the quality of negative sampling. Traditional DR methods primarily depend on naive negative sampling techniques or on mining hard negatives through external retriever…

Information Retrieval · Computer Science 2024-12-24 Xiaopeng Li , Xiangyang Li , Hao Zhang , Zhaocheng Du , Pengyue Jia , Yichao Wang , Xiangyu Zhao , Huifeng Guo , Ruiming Tang

While Diffusion Language Models (DLMs) are theoretically well-suited for iterative refinement due to their non-causal structure, they often fail to reliably revise incorrect tokens in practice. The key challenge lies in the model's…

Machine Learning · Computer Science 2026-01-30 Shuibai Zhang , Fred Zhangzhi Peng , Yiheng Zhang , Jin Pan , Grigorios G. Chrysos

Deep learning (DL) has emerged as a crucial tool in network anomaly detection (NAD) for cybersecurity. While DL models for anomaly detection excel at extracting features and learning patterns from data, they are vulnerable to data…

The integration of large language model (LLM) and data management (DATA) is rapidly redefining both domains. In this survey, we comprehensively review the bidirectional relationships. On the one hand, DATA4LLM, spanning large-scale data…

Synthetic data has the potential to improve the performance, training efficiency, and privacy of real training examples. Nevertheless, existing approaches for synthetic text generation are mostly heuristics and cannot generate…

Machine Learning · Computer Science 2025-06-10 Dang Nguyen , Zeman Li , Mohammadhossein Bateni , Vahab Mirrokni , Meisam Razaviyayn , Baharan Mirzasoleiman

Various techniques have been proposed to leverage the capabilities of code language models (CLMs) for SE tasks. While these techniques typically evaluate their effectiveness using publicly available datasets, the evaluation can be subject…

Software Engineering · Computer Science 2024-03-29 Jialun Cao , Wuqi Zhang , Shing-Chi Cheung

Differentially private text sanitization refers to the process of privatizing texts under the framework of Differential Privacy (DP), providing provable privacy guarantees while also empirically defending against adversaries seeking to harm…

Cryptography and Security · Computer Science 2025-08-27 Stephen Meisenbacher , Alexandra Klymenko , Andreea-Elena Bodea , Florian Matthes

While large-scale training data is fundamental for developing capable large language models (LLMs), strategically selecting high-quality data has emerged as a critical approach to enhance training efficiency and reduce computational costs.…

Machine Learning · Computer Science 2025-07-23 Yang Yu , Kai Han , Hang Zhou , Yehui Tang , Kaiqi Huang , Yunhe Wang , Dacheng Tao

Large language models (LLMs) have shown their potential in long-context understanding and mathematical reasoning. In this paper, we study the problem of using LLMs to detect tabular anomalies and show that pre-trained LLMs are zero-shot…

Machine Learning · Computer Science 2024-06-25 Aodong Li , Yunhan Zhao , Chen Qiu , Marius Kloft , Padhraic Smyth , Maja Rudolph , Stephan Mandt

Large language models (LLMs) have enabled a range of applications in zero-shot and few-shot learning settings, including the generation of synthetic datasets for training and testing. However, to reliably use these synthetic datasets, it is…

Computation and Language · Computer Science 2024-09-19 Gaurav Maheshwari , Dmitry Ivanov , Kevin El Haddad

While Large Language Models (LLMs) excel at code generation, their inherent tendency toward verbatim memorization of training data introduces critical risks like copyright infringement, insecure emission, and deprecated API utilization,…

Software Engineering · Computer Science 2025-11-25 Xue Jiang , Yihong Dong , Huangzhao Zhang , Tangxinyu Wang , Zheng Fang , Yingwei Ma , Rongyu Cao , Binhua Li , Zhi Jin , Wenpin Jiao , Yongbin Li , Ge Li

Neural language models (LMs) are vulnerable to training data extraction attacks due to data memorization. This paper introduces a novel attack scenario wherein an attacker adversarially fine-tunes pre-trained LMs to amplify the exposure of…

Computation and Language · Computer Science 2024-09-04 Myung Gyo Oh , Hong Eun Ahn , Leo Hyun Park , Taekyoung Kwon

Large language models (LLMs) can be trained or fine-tuned on data obtained without the owner's consent. Verifying whether a specific LLM was trained on particular data instances or an entire dataset is extremely challenging. Dataset…

Computation and Language · Computer Science 2025-10-07 Eyal German , Sagiv Antebi , Edan Habler , Asaf Shabtai , Yuval Elovici

For a fixed parameter size, the capabilities of large models are primarily determined by the quality and quantity of its training data. Consequently, training datasets now grow faster than the rate at which new data is indexed on the web,…

Machine Learning · Computer Science 2025-09-12 Minqi Jiang , João G. M. Araújo , Will Ellsworth , Sian Gooding , Edward Grefenstette

Large volumes of text data have contributed significantly to the development of large language models (LLMs) in recent years. This data is typically acquired by scraping the internet, leading to pretraining datasets comprised of noisy web…

Computation and Language · Computer Science 2023-09-12 Max Marion , Ahmet Üstün , Luiza Pozzobon , Alex Wang , Marzieh Fadaee , Sara Hooker

Using Large Language Models (LLMs) to generate synthetic data for model training has become increasingly popular in recent years. While LLMs are capable of producing realistic training data, the effectiveness of data generation is…

Computation and Language · Computer Science 2024-07-23 Yinheng Li , Rogerio Bonatti , Sara Abdali , Justin Wagle , Kazuhito Koishida

The performance of large language models (LLMs) is closely tied to their training data, which can include copyrighted material or private information, raising legal and ethical concerns. Additionally, LLMs face criticism for dataset…

Artificial Intelligence · Computer Science 2025-07-23 Hongyi Tang , Zhihao Zhu , Yi Yang

Large language models (LLMs) have shown great potential as general-purpose AI assistants in various domains. To meet the requirements of different applications, LLMs are often customized by further fine-tuning. However, the powerful…

Machine Learning · Computer Science 2023-11-07 Xin Zhou , Yi Lu , Ruotian Ma , Tao Gui , Qi Zhang , Xuanjing Huang