LDPTrace: Locally Differentially Private Trajectory Synthesis

Summary: LDPTrace: an LDP trajectory synthesis framework that infers three local mobility patterns to generate realistic paths with low computation and no external priors. Introduces privacy-preserving grid-granularity selection and demonstrates superior utility and attack robustness on real/synthetic data. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: 13233
Venue: VLDB
Year: 2023
Pagerank: 6.0955612e-05
Overall Rank: 5,763 | 60.47%
DOI: 10.14778/3594512.3594520

Incoming Non-self Citations Over Time

Authors

1. Yuntao Du (Zhejiang University)
2. Yujia Hu (Zhejiang University)
3. Zhikun Zhang (Stanford University)
4. Ziquan Fang (Zhejiang University)
5. Lu Chen (Zhejiang University)
6. Baihua Zheng (Singapore Management University)
7. Yunjun Gao (Zhejiang University)

BibTeX Citation

@article{du_vldb23,
        title = {{LDPTrace: Locally Differentially Private Trajectory Synthesis}},
        author = {Du, Yuntao and Hu, Yujia and Zhang, Zhikun and Fang, Ziquan and Chen, Lu and Zheng, Baihua and Gao, Yunjun},
        journal = {PVLDB},
        series = {{VLDB} '23},
        volume = {16},
        number = {8},
        pages = {1897--1909},
        doi = {10.14778/3594512.3594520},
        url = {https://doi.org/10.14778/3594512.3594520},
        year = {2023}
}

Incoming Citations (Sorted by Pagerank)

Showing 3 of 3 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
5,746	Federated Heavy Hitter Analytics with Local Differential Privacy	2025	SIGMOD	6.1017514e-05
9,545	PrivRM: A Framework for Range Mean Estimation under Local Differential Privacy	2025	SIGMOD	5.2528121e-05
10,446	Efficient and Effective Biclique Counting with Local Differential Privacy	2026	SIGMOD	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 10 of 10 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
281	Towards Practical Differential Privacy for SQL Queries	2018	VLDB	0.00022445849
1,421	PrivBasis: Frequent Itemset Mining with Differential Privacy	2012	VLDB	0.00010828328
2,476	Data Synthesis via Differentially Private Markov Random Fields	2021	VLDB	8.5258582e-05
2,542	Privacy at Scale: Local Differential Privacy in Practice	2018	SIGMOD	8.4460386e-05
2,749	Estimating Numerical Distributions under Local Differential Privacy	2020	SIGMOD	8.1688076e-05
3,143	Frequency Estimation under Local Differential Privacy	2021	VLDB	7.7137142e-05
3,412	Kamino: Constraint-Aware Differentially Private Data Synthesis	2021	VLDB	7.4344343e-05
3,871	DPT: Differentially Private Trajectory Synthesis Using Hierarchical Reference Systems	2015	VLDB	7.0581665e-05
5,327	Real-World Trajectory Sharing with Local Differential Privacy	2021	VLDB	6.2639736e-05
6,804	A Neural Database for Differentially Private Spatial Range Queries	2022	VLDB	5.768025e-05

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