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More data is almost always beneficial for analysis and machine learning tasks. In many realistic situations however, an enterprise cannot share its data, either to keep a competitive advantage or to protect the privacy of the data sources,…

Machine Learning · Statistics 2020-09-16 Jean-Francois Rajotte , Raymond T Ng

Financial institutions face tension between maximizing data utility and mitigating the re-identification risks inherent in traditional anonymization methods. This paper explores Differentially Private (DP) synthetic data as a robust…

Computational Engineering, Finance, and Science · Computer Science 2026-04-17 Ifayoyinsola Ibikunle , Tyler Farnan , Senthil Kumar , Mayana Pereira

Federated learning (FL) is a decentralized machine learning approach where independent learners process data privately. Its goal is to create a robust and accurate model by aggregating and retraining local models over multiple rounds.…

Machine Learning · Computer Science 2023-10-13 Ensiye Kiyamousavi , Boris Kraychev , Ivan Koychev

Synthetic healthcare data generation offers a promising solution to research limitations in clinical settings caused by privacy and regulatory constraints. However, current synthetic data generation approaches require specialized knowledge…

Machine Learning · Computer Science 2026-02-19 Nitish Nagesh , Salar Shakibhamedan , Mahdi Bagheri , Ziyu Wang , Nima TaheriNejad , Axel Jantsch , Amir M. Rahmani

While synthetic data hold great promise for privacy protection, their statistical analysis poses significant challenges that necessitate innovative solutions. The use of deep generative models (DGMs) for synthetic data generation is known…

Federated semi-supervised learning (FSSL) is primarily challenged by two factors: the scarcity of labeled data across clients and the non-independent and identically distribution (non-IID) nature of data among clients. In this paper, we…

Machine Learning · Computer Science 2025-01-07 Zhongwei Wang , Tong Wu , Zhiyong Chen , Liang Qian , Yin Xu , Meixia Tao

As Deep Learning algorithms continue to evolve and become more sophisticated, they require massive datasets for model training and efficacy of models. Some of those data requirements can be met with the help of existing datasets within the…

Machine Learning · Statistics 2022-04-07 Monik Raj Behera , Sudhir Upadhyay , Suresh Shetty , Sudha Priyadarshini , Palka Patel , Ker Farn Lee

Synthetic tabular data enables sharing and analysis of sensitive records, but its practical deployment requires balancing distributional fidelity, downstream utility, and privacy protection. We study a simple, model agnostic post processing…

Machine Learning · Computer Science 2026-02-09 David Yavo , Richard Khoury , Christophe Pere , Sadoune Ait Kaci Azzou

Synthetic data is emerging as a cost-effective solution necessary to meet the increasing data demands of AI development, created either from existing knowledge or derived from real data. The traditional classification of synthetic data…

Machine Learning · Computer Science 2025-08-07 Vibeke Binz Vallevik , Serena Elizabeth Marshall , Aleksandar Babic , Jan Franz Nygaard

Synthetic data generation, a cornerstone of Generative Artificial Intelligence, promotes a paradigm shift in data science by addressing data scarcity and privacy while enabling unprecedented performance. As synthetic data becomes more…

Machine Learning · Statistics 2024-03-12 Xiaotong Shen , Yifei Liu , Rex Shen

A common approach to synthetic data is to sample from a fitted model. We show that under general assumptions, this approach results in a sample with inefficient estimators and whose joint distribution is inconsistent with the true…

Statistics Theory · Mathematics 2026-02-18 Jordan Awan , Zhanrui Cai

Tabular data is one of the most prevalent and important data formats in real-world applications such as healthcare, finance, and education. However, its effective use in machine learning is often constrained by data scarcity, privacy…

Machine Learning · Computer Science 2025-07-18 Ruxue Shi , Yili Wang , Mengnan Du , Xu Shen , Yi Chang , Xin Wang

Collaborative graph analysis across multiple institutions is becoming increasingly popular. Realistic examples include social network analysis across various social platforms, financial transaction analysis across multiple banks, and…

Cryptography and Security · Computer Science 2024-06-03 Shang Liu , Yang Cao , Takao Murakami , Weiran Liu , Seng Pei Liew , Tsubasa Takahashi , Jinfei Liu , Masatoshi Yoshikawa

Although many AI applications of interest require specialized multi-modal models, relevant data to train such models is inherently scarce or inaccessible. Filling these gaps with human annotators is prohibitively expensive, error-prone, and…

Artificial Intelligence · Computer Science 2026-04-01 Tim R. Davidson , Benoit Seguin , Enrico Bacis , Cesar Ilharco , Hamza Harkous

Federated learning (FL) enables training large language models (LLMs) without sharing raw data, but adapting LLMs under strict data isolation and non-IID client distributions remains challenging in practice. Synthetic data offers a natural…

Much of the research in differential privacy has focused on offline applications with the assumption that all data is available at once. When these algorithms are applied in practice to streams where data is collected over time, this either…

Databases · Computer Science 2024-02-01 Girish Kumar , Thomas Strohmer , Roman Vershynin

Despite recent advancements in federated learning (FL), the integration of generative models into FL has been limited due to challenges such as high communication costs and unstable training in heterogeneous data environments. To address…

Machine Learning · Computer Science 2025-03-25 Kyeongkook Seo , Dong-Jun Han , Jaejun Yoo

Federated learning enables edge devices to collaboratively train a global model while maintaining data privacy by keeping data localized. However, the Non-IID nature of data distribution across devices often hinders model convergence and…

Machine Learning · Computer Science 2025-11-25 Youngjoon Lee , Jinu Gong , Joonhyuk Kang

Aggregating transcriptomics data across hospitals can increase sensitivity and robustness of differential expression analyses, yielding deeper clinical insights. As data exchange is often restricted by privacy legislation, meta-analyses are…

Causal inference is essential for developing and evaluating medical interventions, yet real-world medical datasets are often difficult to access due to regulatory barriers. This makes synthetic data a potentially valuable asset that enables…

Machine Learning · Computer Science 2025-10-22 Harry Amad , Zhaozhi Qian , Dennis Frauen , Julianna Piskorz , Stefan Feuerriegel , Mihaela van der Schaar