LOCATER: Cleaning WiFi Connectivity Datasets for Semantic Localization

Summary: LOCATER reframes semantic indoor localization as data cleaning: fix missing AP-device links across WiFi events and map devices to semantic subregions. Bootstrapped semi-supervised learning yields coarse localization, while probabilistic refinement achieves fine-grained, room-like accuracy. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 12728
Venue: VLDB
Year: 2021
Pagerank: 5.093636e-05
Overall Rank: 11,733 | 19.51%
DOI: 10.14778/3430915.3430923

Incoming Non-self Citations Over Time

No non-self incoming citations found for this paper in this database.

Authors

1. Yiming Lin (University of California Irvine)
2. Daokun Jiang (University of California Irvine)
3. Roberto Yus (University of California Irvine)
4. Georgios Bouloukakis (University of California Irvine)
5. Andrew Chio (University of California Irvine)
6. Sharad Mehrotra (University of California Irvine)
7. Nalini Venkatasubramanian (University of California Irvine)

BibTeX Citation

@article{lin_vldb21,
        title = {{LOCATER: Cleaning WiFi Connectivity Datasets for Semantic Localization}},
        author = {Lin, Yiming and Jiang, Daokun and Yus, Roberto and Bouloukakis, Georgios and Chio, Andrew and Mehrotra, Sharad and Venkatasubramanian, Nalini},
        journal = {PVLDB},
        series = {{VLDB} '21},
        volume = {14},
        number = {3},
        pages = {329--341},
        doi = {10.14778/3430915.3430923},
        url = {https://doi.org/10.14778/3430915.3430923},
        year = {2021}
}

Incoming Citations (Sorted by Pagerank)

Showing 4 of 4 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
9,200	JENNER: Just-in-time Enrichment in Query Processing	2022	VLDB	5.3058708e-05
9,285	ZIP: Lazy Imputation during Query Processing	2024	VLDB	5.292293e-05
11,166	PLAQUE: Automated Predicate Learning at Query Time	2024	SIGMOD	5.093636e-05
13,461	T-Cove: An exposure tracing System based on Cleaning Wi-Fi Events on Organizational Premises	2021	VLDB	-

Outgoing Citations (Sorted by Pagerank)

Showing 16 of 16 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
228	Reference Reconciliation in Complex Information Spaces	2005	SIGMOD	0.00023941271
549	ERACER: A Database Approach for Statistical Inference and Data Cleaning	2010	SIGMOD	0.00016692839
661	Don’t be SCAREd: Use SCalable Automatic REpairing with Maximal Likelihood and Bounded Changes	2013	SIGMOD	0.0001519162
714	Guided Data Repair	2011	VLDB	0.00014662041
998	Towards Certain Fixes with Editing Rules and Master Data	2010	VLDB	0.0001275238
1,101	KATARA: A Data Cleaning System Powered by Knowledge Bases and Crowdsourcing	2015	SIGMOD	0.00012168934
1,323	Data Cleaning: Overview and Emerging Challenges	2016	SIGMOD	0.00011152602
1,331	Adaptive Cleaning for RFID Data Streams	2006	VLDB	0.00011130651
2,340	Online Outlier Detection in Sensor Data Using Non-Parametric Models	2006	VLDB	8.7246796e-05
2,545	Mind the Gap: An Experimental Evaluation of Imputation of Missing Values Techniques in Time Series	2020	VLDB	8.4401333e-05
2,995	Time Series Data Cleaning: From Anomaly Detection to Anomaly Repairing	2017	VLDB	7.8750141e-05
3,361	Cleaning Denial Constraint Violations through Relaxation	2020	SIGMOD	7.4872032e-05
5,030	Learning-Based Cleansing for Indoor RFID Data	2016	SIGMOD	6.3954412e-05
5,167	Enriching Data Imputation with Extensive Similarity Neighbors	2015	VLDB	6.3370748e-05
5,972	Query-Driven Approach to Entity Resolution	2013	VLDB	6.0237003e-05
6,922	IoT-Detective: Analyzing IoT Data Under Differential Privacy	2018	SIGMOD	5.7387625e-05

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