Differentially Private Tabular Data Synthesis using Large Language Models
On the map: Synthetic data and self-improvement for LLMs → Privacy-preserving tabular data synthesis
Abstract (arXiv)
Synthetic tabular data generation with differential privacy is a crucial problem to enable data sharing with formal privacy. Despite a rich history of methodological research and development, developing differentially private tabular data generators that can provide realistic synthetic datasets remains challenging. This paper introduces DP-LLMTGen -- a novel framework for differentially private tabular data synthesis that leverages pretrained large language models (LLMs). DP-LLMTGen models sensitive datasets using a two-stage fine-tuning procedure with a novel loss function specifically designed for tabular data. Subsequently, it generates synthetic data through sampling the fine-tuned LLMs. Our empirical evaluation demonstrates that DP-LLMTGen outperforms a variety of existing mechanisms across multiple datasets and privacy settings. Additionally, we conduct an ablation study and several experimental analyses to deepen our understanding of LLMs in addressing this important problem. Finally, we highlight the controllable generation ability of DP-LLMTGen through a fairness-constrained generation setting.
Key facts. Cited by 16 papers in the map (data through 7 Oct 2026). Placed in Privacy-preserving tabular data synthesis, one of 13 directions in Synthetic data and self-improvement for LLMs. Builds on 40 of its 57 references that are in the map. First posted on arXiv 3 Jun 2024.
Builds on
40 of 57 references.
References · 40
- 2017Attention Is All You Needcited by 59,932
- 2019PyTorch: An Imperative Style, High-Performance Deep Learning Librarycited by 20,160
- 2021LoRA: Low-Rank Adaptation of Large Language Modelscited by 14,084
- 2016XGBoost: A Scalable Tree Boosting Systemcited by 5,120
- 2019DistilBERT, a distilled version of BERT: smaller, faster, cheaper and lightercited by 4,243
- 2016Deep Learning with Differential Privacycited by 2,682
- 2024Phi-3 Technical Report: A Highly Capable Language Model Locally on Your Phonecited by 1,883
- 2019Modeling Tabular data using Conditional GANcited by 695
- 2021Tabular Data: Deep Learning is Not All You Needcited by 530
- 2021Deep Neural Networks and Tabular Data: A Surveycited by 489
- 2021Differentially Private Fine-tuning of Language Modelscited by 392
- 2021Opacus: User-Friendly Differential Privacy Library in PyTorchcited by 375
28 more
- 2022TabDDPM: Modelling Tabular Data with Diffusion Modelscited by 373
- 2022Language Models are Realistic Tabular Data Generatorscited by 290
- 2022TabLLM: Few-shot Classification of Tabular Data with Large Language Modelscited by 273
- 2018Scalable Private Learning with PATEcited by 266
- 2018Differentially Private Generative Adversarial Networkcited by 235
- 2018Data Synthesis based on Generative Adversarial Networkscited by 184
- 2022LIFT: Language-Interfaced Fine-Tuning for Non-Language Machine Learning Taskscited by 146
- 2020DP-CGAN: Differentially Private Synthetic Data and Label Generationcited by 118
- 2022Synthetic Text Generation with Differential Privacy: A Simple and Practical Recipecited by 108
- 2023Synthetic Data Generation with Large Language Models for Text Classification: Potential and Limitationscited by 96
- 2022AIM: An Adaptive and Iterative Mechanism for Differentially Private Synthetic Datacited by 88
- 2022Differentially Private Language Models for Secure Data Sharingcited by 68
- 2023Harnessing large-language models to generate private synthetic textcited by 65
- 2023Differentially Private Synthetic Data via Foundation Model APIs 1: Imagescited by 63
- 2021Iterative Methods for Private Synthetic Data: Unifying Framework and New Methodscited by 58
- 2021Differentially Private Query Release Through Adaptive Projectioncited by 50
- 2022Achieving Fairness at No Utility Cost via Data Reweighing with Influencecited by 38
- 2023TabMT: Generating tabular data with masked transformerscited by 36
- 2021Copula Flows for Synthetic Data Generationcited by 35
- 2022Private Synthetic Data for Multitask Learning and Marginal Queriescited by 35
- 2023FFB: A Fair Fairness Benchmark for In-Processing Group Fairness Methodscited by 33
- 2023Advancing Differential Privacy: Where We Are Now and Future Directions for Real-World Deploymentcited by 26
- 2022Controllable Data Generation by Deep Learning: A Reviewcited by 20
- 2024Elephants Never Forget: Testing Language Models for Memorization of Tabular Datacited by 19
- 2023Generating Private Synthetic Data with Genetic Algorithmscited by 18
- 2023DP-TBART: A Transformer-based Autoregressive Model for Differentially Private Tabular Data Generationcited by 13
- 2023Statistical Knowledge Assessment for Large Language Modelscited by 5
- 2023Privately generating tabular data using language modelscited by 5
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Citing papers per year: 2024: 3; 2025: 8; 2026: 5.
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- 2025A Comprehensive Survey of Synthetic Tabular Data Generationcited by 27
- 2024Private prediction for large-scale synthetic text generationcited by 24
- 2025A Case Study Exploring the Current Landscape of Synthetic Medical Record Generation with Commercial LLMscited by 13
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generationcited by 7
- 2024DP-2Stage: Adapting Language Models as Differentially Private Tabular Data Generatorscited by 5
- 2025Is API Access to LLMs Useful for Generating Private Synthetic Tabular Data?cited by 5
- 2025Clustering and Median Aggregation Improve Differentially Private Inferencecited by 5
- 2026A Survey on Evaluating Quality and Trustworthiness in LLM-Generated Datacited by 5
- 2024A text-to-tabular approach to generate synthetic patient data using LLMscited by 4
- 2025SynLLM: A Comparative Analysis of Large Language Models for Medical Tabular Synthetic Data Generation via Prompt Engineeringcited by 2
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Datacited by 2
- 2025Assessing Generative Models for Structured Datacited by 1
4 more
- 2026Privately Fine-Tuned LLMs Preserve Temporal Dynamics in Tabular Datacited by 1
- 2025Beyond One-Size-Fits-All: Neural Networks for Differentially Private Tabular Data Synthesiscited by 0
- 2026Generative AI and Federated Learning for Intrusion Detection Systems: A Surveycited by 0
- 2026PEG-Tab: Sampling-Time Record Repair and Release Control for Tabular Synthesiscited by 0
- 2026PEG-Tab: Sampling-Time Record Repair and Release Control for Tabular Synthesis30 Sep 2026
- 2026Generative AI and Federated Learning for Intrusion Detection Systems: A Survey1 Jul 2026
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Data6 Jun 2026
- 2026Privately Fine-Tuned LLMs Preserve Temporal Dynamics in Tabular Data2 Feb 2026
- 2026A Survey on Evaluating Quality and Trustworthiness in LLM-Generated Data25 Jan 2026
- 2025Beyond One-Size-Fits-All: Neural Networks for Differentially Private Tabular Data Synthesis17 Nov 2025
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generation12 Sep 2025
- 2025SynLLM: A Comparative Analysis of Large Language Models for Medical Tabular Synthetic Data Generation via Prompt Engineering11 Aug 2025
- 2025Clustering and Median Aggregation Improve Differentially Private Inference5 Jun 2025
- 2025A Comprehensive Survey of Synthetic Tabular Data Generation23 Apr 2025
- 2025A Case Study Exploring the Current Landscape of Synthetic Medical Record Generation with Commercial LLMs20 Apr 2025
- 2025Assessing Generative Models for Structured Data26 Mar 2025
4 more
- 2025Is API Access to LLMs Useful for Generating Private Synthetic Tabular Data?10 Feb 2025
- 2024A text-to-tabular approach to generate synthetic patient data using LLMs6 Dec 2024
- 2024DP-2Stage: Adapting Language Models as Differentially Private Tabular Data Generators3 Dec 2024
- 2024Private prediction for large-scale synthetic text generation16 Jul 2024
- 2026A Survey on Evaluating Quality and Trustworthiness in LLM-Generated Datacited by 5
- 2025SynLLM: A Comparative Analysis of Large Language Models for Medical Tabular Synthetic Data Generation via Prompt Engineeringcited by 2
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Datacited by 2
- 2026Differentially Private Synthetic Data via APIs 4: Tabular Data6 Jun 2026
- 2026A Survey on Evaluating Quality and Trustworthiness in LLM-Generated Data25 Jan 2026
- 2025SynLLM: A Comparative Analysis of Large Language Models for Medical Tabular Synthetic Data Generation via Prompt Engineering11 Aug 2025
- 2025A Comprehensive Survey of Synthetic Tabular Data Generationcited by 27
- 2025A Comprehensive Survey of Synthetic Tabular Data Generation23 Apr 2025
- 2024Private prediction for large-scale synthetic text generationcited by 24
- 2025A Case Study Exploring the Current Landscape of Synthetic Medical Record Generation with Commercial LLMscited by 13
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generationcited by 7
- 2024DP-2Stage: Adapting Language Models as Differentially Private Tabular Data Generatorscited by 5
- 2025Is API Access to LLMs Useful for Generating Private Synthetic Tabular Data?cited by 5
- 2025Clustering and Median Aggregation Improve Differentially Private Inferencecited by 5
- 2024A text-to-tabular approach to generate synthetic patient data using LLMscited by 4
- 2025Assessing Generative Models for Structured Datacited by 1
- 2026Privately Fine-Tuned LLMs Preserve Temporal Dynamics in Tabular Datacited by 1
- 2025Beyond One-Size-Fits-All: Neural Networks for Differentially Private Tabular Data Synthesiscited by 0
- 2026Generative AI and Federated Learning for Intrusion Detection Systems: A Surveycited by 0
- 2026PEG-Tab: Sampling-Time Record Repair and Release Control for Tabular Synthesiscited by 0
- 2026PEG-Tab: Sampling-Time Record Repair and Release Control for Tabular Synthesis30 Sep 2026
- 2026Generative AI and Federated Learning for Intrusion Detection Systems: A Survey1 Jul 2026
- 2026Privately Fine-Tuned LLMs Preserve Temporal Dynamics in Tabular Data2 Feb 2026
- 2025Beyond One-Size-Fits-All: Neural Networks for Differentially Private Tabular Data Synthesis17 Nov 2025
- 2025Struct-Bench: A Benchmark for Differentially Private Structured Text Generation12 Sep 2025
- 2025Clustering and Median Aggregation Improve Differentially Private Inference5 Jun 2025
- 2025A Case Study Exploring the Current Landscape of Synthetic Medical Record Generation with Commercial LLMs20 Apr 2025
- 2025Assessing Generative Models for Structured Data26 Mar 2025
- 2025Is API Access to LLMs Useful for Generating Private Synthetic Tabular Data?10 Feb 2025
- 2024A text-to-tabular approach to generate synthetic patient data using LLMs6 Dec 2024
- 2024DP-2Stage: Adapting Language Models as Differentially Private Tabular Data Generators3 Dec 2024
- 2024Private prediction for large-scale synthetic text generation16 Jul 2024
Similar, not cited
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- 2024Tabular Data Synthesis with Differential Privacy: A Survey
- 2026Creation begins with understanding: LLMs as strategy designers for privacy-preserving tabular data synthesis
- 2024HARMONIC: Harnessing LLMs for Tabular Data Synthesis and Privacy Protection
- 2024Systematic Assessment of Tabular Data Synthesis
- 2026Private Seeds, Public LLMs: Realistic and Privacy-Preserving Synthetic Data Generation
- 2024SafeSynthDP: Leveraging Large Language Models for Privacy-Preserving Synthetic Data Generation Using Differential Privacy
- 2024DP-TLDM: Differentially Private Tabular Latent Diffusion Model
- 2024Federated Diffusion Modeling with Differential Privacy for Tabular Data Synthesis