PCOR: Private Contextual Outlier Release via Differentially Private Search

Summary: PCOR tackles contextual outliers under a relaxed differential privacy that preserves valid context per queried record. A graph-based map with DP graph-search enables efficient private context discovery and utility scoring. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 6155
Venue: SIGMOD
Year: 2021
Pagerank: 5.2125702e-05
Overall Rank: 9,830 | 32.56%
DOI: 10.1145/3448016.3452812

Incoming Non-self Citations Over Time

Authors

1. Masoumeh Shafieinejad (University of Waterloo)
2. Florian Kerschbaum (University of Waterloo)
3. Ihab F. Ilyas (University of Waterloo)

BibTeX Citation

@inproceedings{shafieinejad_sigmod21,
        title = {{PCOR: Private Contextual Outlier Release via Differentially Private Search}},
        author = {Shafieinejad, Masoumeh and Kerschbaum, Florian and Ilyas, Ihab F.},
        series = {{SIGMOD} '21},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3448016.3452812},
        url = {https://dl.acm.org/doi/10.1145/3448016.3452812},
        year = {2021}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
8,184	FEDEX: An Explainability Framework for Data Exploration Steps	2022	VLDB	5.4709725e-05

Outgoing Citations (Sorted by Pagerank)

Showing 5 of 5 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
142	LOF: Identifying Density-Based Local Outliers	2000	SIGMOD	0.0002962566
281	Towards Practical Differential Privacy for SQL Queries	2018	VLDB	0.00022445849
3,693	Locating a Small Cluster Privately	2016	PODS	7.1990589e-05
4,881	Utility Cost of Formal Privacy for Releasing National Employer-Employee Statistics	2017	SIGMOD	6.465615e-05
5,055	APEx: Accuracy-Aware Differentially Private Data Exploration	2019	SIGMOD	6.3824509e-05

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