15 citations · 18 across the 5 of their papers we have counts for
5 papers
Efficient Correlation Clustering Methods for Large Consensus Clustering Instances
Nathan Cordner, George Kollios
Consensus clustering (or clustering aggregation) inputs partitions of a given ground set , and seeks to create a single partition that minimizes disagreement with all input…
: Efficiently Querying Databases While Providing Differential Privacy
Dmytro Bogatov, Georgios Kellaris, George Kollios +2
As organizations struggle with processing vast amounts of information, outsourcing sensitive data to third parties becomes a necessity. To protect the data, various cryptographic t…
NED: An Inter-Graph Node Metric Based On Edit Distance
Haohan Zhu, Xianrui Meng, George Kollios
Node similarity is a fundamental problem in graph analytics. However, node similarity between nodes in different graphs (inter-graph nodes) has not received a lot of attention yet.…
Top-k Query Processing on Encrypted Databases with Strong Security Guarantees
Xianrui Meng, Haohan Zhu, George Kollios
Privacy concerns in outsourced cloud databases have become more and more important recently and many efficient and scalable query processing methods over encrypted data have been p…
A Generic Framework for Efficient and Effective Subsequence Retrieval
Haohan Zhu, George Kollios, Vassilis Athitsos
This paper proposes a general framework for matching similar subsequences in both time series and string databases. The matching results are pairs of query subsequences and databas…