SoK: Privacy-Preserving Data Synthesis
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Abstract (arXiv)
As the prevalence of data analysis grows, safeguarding data privacy has become a paramount concern. Consequently, there has been an upsurge in the development of mechanisms aimed at privacy-preserving data analyses. However, these approaches are task-specific; designing algorithms for new tasks is a cumbersome process. As an alternative, one can create synthetic data that is (ideally) devoid of private information. This paper focuses on privacy-preserving data synthesis (PPDS) by providing a comprehensive overview, analysis, and discussion of the field. Specifically, we put forth a master recipe that unifies two prominent strands of research in PPDS: statistical methods and deep learning (DL)-based methods. Under the master recipe, we further dissect the statistical methods into choices of modeling and representation, and investigate the DL-based methods by different generative modeling principles. To consolidate our findings, we provide comprehensive reference tables, distill key takeaways, and identify open problems in the existing literature. In doing so, we aim to answer the following questions: What are the design principles behind different PPDS methods? How can we categorize these methods, and what are the advantages and disadvantages associated with each category? Can we provide guidelines for method selection in different real-world scenarios? We proceed to benchmark several prominent DL-based methods on the task of private image synthesis and conclude that DP-MERF is an all-purpose approach. Finally, upon systematizing the work over the past decade, we identify future directions and call for actions from researchers.
Key facts. Cited by 37 papers in the map (data through 7 Oct 2026). Builds on 72 of its 254 references that are in the map. First posted on arXiv 5 Jul 2023.
Builds on
72 of 254 references.
References · 72
- 2020Denoising Diffusion Probabilistic Modelscited by 20,851
- 2021High-Resolution Image Synthesis with Latent Diffusion Modelscited by 18,694
- 2015Distilling the Knowledge in a Neural Networkcited by 10,076
- 2020Score-Based Generative Modeling through Stochastic Differential Equationscited by 8,964
- 2017Fashion-MNIST: a Novel Image Dataset for Benchmarking Machine Learning Algorithmscited by 4,283
- 2019Generative Modeling by Estimating Gradients of the Data Distributioncited by 4,067
- 2014Deep Learning Face Attributes in the Wildcited by 3,679
- 2022Elucidating the Design Space of Diffusion-Based Generative Modelscited by 2,994
- 2016Deep Learning with Differential Privacycited by 2,682
- 2016Membership Inference Attacks against Machine Learning Modelscited by 2,221
- 2015LSUN: Construction of a Large-scale Image Dataset using Deep Learning with Humans in the Loopcited by 1,350
- 2022Diffusion Models: A Comprehensive Survey of Methods and Applicationscited by 1,107
38 more
- 2020Improved Techniques for Training Score-Based Generative Modelscited by 1,036
- 2017A Closer Look at Memorization in Deep Networkscited by 936
- 2019Modeling Tabular data using Conditional GANcited by 695
- 2017Renyi Differential Privacycited by 643
- 2021Large Language Models Can Be Strong Differentially Private Learnerscited by 405
- 2018Video-to-Video Synthesiscited by 388
- 2016Semi-supervised Knowledge Transfer for Deep Learning from Private Training Datacited by 347
- 2017Learning Generative Models with Sinkhorn Divergencescited by 310
- 2018Deep Face Recognition: A Surveycited by 275
- 2018Scalable Private Learning with PATEcited by 266
- 2021Deep Generative Modelling: A Comparative Review of VAEs, GANs, Normalizing Flows, Energy-Based and Autoregressive Modelscited by 251
- 2019The Secret Revealer: Generative Model-Inversion Attacks Against Deep Neural Networkscited by 241
- 2018Differentially Private Generative Adversarial Networkcited by 235
- 2018Adversarial Audio Synthesiscited by 222
- 2021Adversary Instantiation: Lower Bounds for Differentially Private Machine Learningcited by 193
- 2018Protection Against Reconstruction and Its Applications in Private Federated Learningcited by 127
- 2018Improving GANs Using Optimal Transportcited by 122
- 2019Reconstruction and Membership Inference Attacks against Generative Modelscited by 122
- 2020DP-CGAN: Differentially Private Synthetic Data and Label Generationcited by 118
- 2022Differentially Private Diffusion Modelscited by 118
- 2020GS-WGAN: A Gradient-Sanitized Approach for Learning Differentially Private Generatorscited by 117
- 2020Synthetic Data -- Anonymisation Groundhog Daycited by 105
- 2021Winning the NIST Contest: A scalable and general approach to differentially private synthetic datacited by 101
- 2021Benchmarking Differentially Private Synthetic Data Generation Algorithmscited by 80
- 2018Privacy Preserving Machine Learning: Threats and Solutionscited by 78
- 2020DP-MERF: Differentially Private Mean Embeddings with Random Features for Practical Privacy-Preserving Data Generationcited by 78
- 2019Graphical-model based estimation and inference for differential privacycited by 73
- 2020When Machine Learning Meets Privacy: A Survey and Outlookcited by 67
- 2014Differential Privacy and Machine Learning: a Survey and Reviewcited by 66
- 2022Synthetic Data -- what, why and how?cited by 66
- 2021Don't Generate Me: Training Differentially Private Generative Models with Sinkhorn Divergencecited by 54
- 2019G-PATE: Scalable Differentially Private Data Generator via Private Aggregation of Teacher Discriminatorscited by 53
- 2020Differentially Private Synthetic Medical Data Generation using Convolutional GANscited by 52
- 2021Differentially Private Query Release Through Adaptive Projectioncited by 50
- 2021Robin Hood and Matthew Effects: Differential Privacy Has Disparate Impact on Synthetic Datacited by 48
- 2020New Oracle-Efficient Algorithms for Private Synthetic Data Releasecited by 43
- 2017Differentially Private Mixture of Generative Neural Networkscited by 39
- 2019ER-AE: Differentially Private Text Generation for Authorship Anonymizationcited by 35
50 most cited of 72 All 72 (JSON)
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Citing papers per year: 2023: 4; 2024: 8; 2025: 19; 2026: 6.
37 papers.
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- 2024Provably Unlearnable Data Examplescited by 18
- 2023Privately Aligning Language Models with Reinforcement Learningcited by 17
- 2025Differentially Private Synthetic Data via APIs 3: Using Simulators Instead of Foundation Modelcited by 13
- 2025DPImageBench: A Unified Benchmark for Differentially Private Image Synthesiscited by 11
- 2025The DCR Delusion: Measuring the Privacy Risk of Synthetic Datacited by 11
- 2024Privacy Vulnerabilities in Marginals-based Synthetic Datacited by 10
- 2024Privacy-preserving data release leveraging optimal transport and particle gradient descentcited by 8
- 2024LLM-based Privacy Data Augmentation Guided by Knowledge Distillation with a Distribution Tutor for Medical Text Classificationcited by 8
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generationcited by 7
- 2024Synthetic Data: Revisiting the Privacy-Utility Trade-offcited by 6
- 2023A Unified View of Differentially Private Deep Generative Modelingcited by 4
- 2025Generating Synthetic Data with Formal Privacy Guarantees: State of the Art and the Road Aheadcited by 4
25 more
- 2025The Importance of Being Discrete: Measuring the Impact of Discretization in End-to-End Differentially Private Synthetic Datacited by 4
- 2024Combining Machine Learning Defenses without Conflictscited by 2
- 2025RAPID: Retrieval Augmented Training of Differentially Private Diffusion Modelscited by 2
- 2025Private Text Generation by Seeding Large Language Model Promptscited by 2
- 2025dpmm: Differentially Private Marginal Models, a Library for Synthetic Tabular Data Generationcited by 2
- 2025Privacy Amplification Through Synthetic Data: Insights from Linear Regressioncited by 2
- 2025Virus Infection Attack on LLMs: Your Poisoning Can Spread "VIA" Synthetic Datacited by 2
- 2025ACTG-ARL: Differentially Private Conditional Text Generation with RL-Boosted Controlcited by 2
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Datacited by 2
- 2025SoK: Can Synthetic Images Replace Real Data? A Survey of Utility and Privacy of Synthetic Image Generationcited by 1
- 2025Democratizing Tabular Data Access with an Openunicodex2013Source Syntheticunicodex2013Data SDKcited by 1
- 2025BinaryShield: Cross-Service Threat Intelligence in LLM Services using Privacy-Preserving Fingerprintscited by 1
- 2025PrivORL: Differentially Private Synthetic Dataset for Offline Reinforcement Learningcited by 1
- 2026Rethinking Anonymity Claims in Synthetic Data Generation: A Model-Centric Privacy Attack Perspectivecited by 1
- 2026FHAIM: Fully Homomorphic AIM For Private Synthetic Data Generationcited by 1
- 2026Turning Black Box into White Box: Dataset Distillation Leakscited by 1
- 2023Scalable and Privacy-Preserving Synthetic Data Generation on Decentralised Webcited by 0
- 2023PAC Privacy Preserving Diffusion Modelscited by 0
- 2024SAFES: Sequential Privacy and Fairness Enhancing Data Synthesis for Responsible AIcited by 0
- 2024End to End Collaborative Synthetic Data Generationcited by 0
- 2025Understanding the Impact of Data Domain Extraction on Synthetic Data Privacycited by 0
- 2025Private Training & Data Generation by Clustering Embeddingscited by 0
- 2025How to Protect Models against Adversarial Unlearning?cited by 0
- 2026From Easy to Hard++: Promoting Differentially Private Image Synthesis Through Spatial-Frequency Curriculumcited by 0
- 2026MAPLE: Metadata Augmented Private Language Evolutioncited by 0
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Data6 Jun 2026
- 2026Turning Black Box into White Box: Dataset Distillation Leaks1 Mar 2026
- 2026MAPLE: Metadata Augmented Private Language Evolution26 Feb 2026
- 2026FHAIM: Fully Homomorphic AIM For Private Synthetic Data Generation5 Feb 2026
- 2026Rethinking Anonymity Claims in Synthetic Data Generation: A Model-Centric Privacy Attack Perspective30 Jan 2026
- 2026From Easy to Hard++: Promoting Differentially Private Image Synthesis Through Spatial-Frequency Curriculum10 Jan 2026
- 2025PrivORL: Differentially Private Synthetic Dataset for Offline Reinforcement Learning8 Dec 2025
- 2025ACTG-ARL: Differentially Private Conditional Text Generation with RL-Boosted Control21 Oct 2025
- 2025Virus Infection Attack on LLMs: Your Poisoning Can Spread "VIA" Synthetic Data27 Sep 2025
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generation12 Sep 2025
- 2025BinaryShield: Cross-Service Threat Intelligence in LLM Services using Privacy-Preserving Fingerprints6 Sep 2025
- 2025Democratizing Tabular Data Access with an Openunicodex2013Source Syntheticunicodex2013Data SDK1 Aug 2025
25 more
- 2025How to Protect Models against Adversarial Unlearning?15 Jul 2025
- 2025SoK: Can Synthetic Images Replace Real Data? A Survey of Utility and Privacy of Synthetic Image Generation24 Jun 2025
- 2025Private Training & Data Generation by Clustering Embeddings20 Jun 2025
- 2025Privacy Amplification Through Synthetic Data: Insights from Linear Regression5 Jun 2025
- 2025dpmm: Differentially Private Marginal Models, a Library for Synthetic Tabular Data Generation31 May 2025
- 2025The DCR Delusion: Measuring the Privacy Risk of Synthetic Data2 May 2025
- 2025Understanding the Impact of Data Domain Extraction on Synthetic Data Privacy11 Apr 2025
- 2025The Importance of Being Discrete: Measuring the Impact of Discretization in End-to-End Differentially Private Synthetic Data9 Apr 2025
- 2025Generating Synthetic Data with Formal Privacy Guarantees: State of the Art and the Road Ahead26 Mar 2025
- 2025DPImageBench: A Unified Benchmark for Differentially Private Image Synthesis18 Mar 2025
- 2025Private Text Generation by Seeding Large Language Model Prompts18 Feb 2025
- 2025RAPID: Retrieval Augmented Training of Differentially Private Diffusion Models18 Feb 2025
- 2025Differentially Private Synthetic Data via APIs 3: Using Simulators Instead of Foundation Model8 Feb 2025
- 2024End to End Collaborative Synthetic Data Generation4 Dec 2024
- 2024Combining Machine Learning Defenses without Conflicts14 Nov 2024
- 2024SAFES: Sequential Privacy and Fairness Enhancing Data Synthesis for Responsible AI14 Nov 2024
- 2024Privacy Vulnerabilities in Marginals-based Synthetic Data7 Oct 2024
- 2024Synthetic Data: Revisiting the Privacy-Utility Trade-off9 Jul 2024
- 2024Provably Unlearnable Data Examples6 May 2024
- 2024LLM-based Privacy Data Augmentation Guided by Knowledge Distillation with a Distribution Tutor for Medical Text Classification26 Feb 2024
- 2024Privacy-preserving data release leveraging optimal transport and particle gradient descent31 Jan 2024
- 2023PAC Privacy Preserving Diffusion Models2 Dec 2023
- 2023Scalable and Privacy-Preserving Synthetic Data Generation on Decentralised Web30 Oct 2023
- 2023Privately Aligning Language Models with Reinforcement Learning25 Oct 2023
- 2023A Unified View of Differentially Private Deep Generative Modeling27 Sep 2023
- 2025Differentially Private Synthetic Data via APIs 3: Using Simulators Instead of Foundation Modelcited by 13
- 2025Virus Infection Attack on LLMs: Your Poisoning Can Spread "VIA" Synthetic Datacited by 2
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Datacited by 2
- 2024SAFES: Sequential Privacy and Fairness Enhancing Data Synthesis for Responsible AIcited by 0
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Data6 Jun 2026
- 2025Virus Infection Attack on LLMs: Your Poisoning Can Spread "VIA" Synthetic Data27 Sep 2025
- 2025Differentially Private Synthetic Data via APIs 3: Using Simulators Instead of Foundation Model8 Feb 2025
- 2024SAFES: Sequential Privacy and Fairness Enhancing Data Synthesis for Responsible AI14 Nov 2024
- 2024Provably Unlearnable Data Examplescited by 18
- 2025DPImageBench: A Unified Benchmark for Differentially Private Image Synthesiscited by 11
- 2024Privacy Vulnerabilities in Marginals-based Synthetic Datacited by 10
- 2024Privacy-preserving data release leveraging optimal transport and particle gradient descentcited by 8
- 2024LLM-based Privacy Data Augmentation Guided by Knowledge Distillation with a Distribution Tutor for Medical Text Classificationcited by 8
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generationcited by 7
- 2024Synthetic Data: Revisiting the Privacy-Utility Trade-offcited by 6
- 2023A Unified View of Differentially Private Deep Generative Modelingcited by 4
- 2025Generating Synthetic Data with Formal Privacy Guarantees: State of the Art and the Road Aheadcited by 4
- 2025The Importance of Being Discrete: Measuring the Impact of Discretization in End-to-End Differentially Private Synthetic Datacited by 4
- 2024Combining Machine Learning Defenses without Conflictscited by 2
- 2025Private Text Generation by Seeding Large Language Model Promptscited by 2
12 most cited of 26 All 26 (JSON)
- 2026Turning Black Box into White Box: Dataset Distillation Leaks1 Mar 2026
- 2026MAPLE: Metadata Augmented Private Language Evolution26 Feb 2026
- 2026FHAIM: Fully Homomorphic AIM For Private Synthetic Data Generation5 Feb 2026
- 2026Rethinking Anonymity Claims in Synthetic Data Generation: A Model-Centric Privacy Attack Perspective30 Jan 2026
- 2026From Easy to Hard++: Promoting Differentially Private Image Synthesis Through Spatial-Frequency Curriculum10 Jan 2026
- 2025ACTG-ARL: Differentially Private Conditional Text Generation with RL-Boosted Control21 Oct 2025
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generation12 Sep 2025
- 2025BinaryShield: Cross-Service Threat Intelligence in LLM Services using Privacy-Preserving Fingerprints6 Sep 2025
- 2025Democratizing Tabular Data Access with an Openunicodex2013Source Syntheticunicodex2013Data SDK1 Aug 2025
- 2025SoK: Can Synthetic Images Replace Real Data? A Survey of Utility and Privacy of Synthetic Image Generation24 Jun 2025
- 2025Private Training & Data Generation by Clustering Embeddings20 Jun 2025
- 2025Privacy Amplification Through Synthetic Data: Insights from Linear Regression5 Jun 2025
12 newest of 26 All 26 (JSON)