home › event - privacy preserving data quality assessment


Privacy Preserving Data Quality Assessment
Conferences & Talks

ACM Workshop on Information Sharing and Collaborative Security (WISCS)

3 November 2014



In a data-driven economy that struggles to cope with the volume and diversity of information, data quality assessment has become a necessary precursor to data analytics. Real-world data often contains inconsistencies, conflicts and errors. Such dirty data increases processing costs and has a negative impact on analytics. Assessing the quality of a dataset is especially important when a party is con- sidering acquisition of data held by an untrusted entity. In this sce- nario, it is necessary to consider privacy risks of the stakeholders. This paper examines challenges in privacy-preserving data quality assessment. A two-party scenario is considered, consisting of a client that wishes to test data quality and a server that holds the dataset. Privacy-preserving protocols are presented for testing important data quality metrics: completeness, consistency, uniqueness, timeliness and validity. For semi-honest parties, the protocols ensure that the client does not discover any information about the data other than the value of the quality metric. The server does not discover the parameters of the client’s query, the specific attributes being tested and the computed value of the data quality metric. The proposed protocols employ additively homomorphic encryption in conjunction with condensed data representations such as counting hash tables and histograms, serving as efficient alternatives to solutions based on private set intersection.


upcoming events   view all 

The Cutting Edge of Artificial Intelligence
Tolga Kurtoglu, Margareta Ackerman, Andra Keay, Piero Scaruffi, Allen Saakyan
22 February 2018 | George E. Pake Auditorium, PARC
PARC Forum  

Printed Electronics: From Vision to Disruption
Markus Larsson
13 March 2018 | Munich, Germany
Conferences & Talks  

The Ghost in the Smart Machine (Panel)
Tolga Kurtoglu, Panelist
22 March 2018 | Chicago, IL
Conferences & Talks  

Robots, AI and the Future of Work (Plenary Session)
Tolga Kurtoglu
17 April 2018 | Miami, FL
Conferences & Talks  

Bringing Reliable (and Transparent) AI to Business (Keynote)
Tolga Kurtoglu, Keynote Speaker
26 April 2018 | Seattle, WA
Conferences & Talks