A regret minimizing set Q is a small size representation of a much larger database P so that
user queries executed on Q return answers whose scores are not much worse than those on …

With the exponential growth of cloud computing services recently, several internet
technologies began to require the processing of multi-criteria ranking. The collaborative …

The G-Skyline (GSky) query is a powerful tool to analyze optimal groups in decision support.
Compared with other group skyline queries, it releases users from providing an aggregate …

A top-k dominating query returns k data objects that dominate the highest number of data
objects in a given dataset. This query provides us with a set of intuitively preferred data, thus …

For a given multi-dimensional data set, a group skyline query returns the optimal groups not
dominated by any other group of equal size. The group skyline query is a powerful tool in …

Recently more and more information sources are connected together and become a sort of
complex graphs that can be exploited not only as a structured and semi-structured data such …

A top-k dominating query returns the k objects dominating the maximum number of objects
in a given dataset. It combines the advantages of skyline queries and top-k queries, and …

This work tackles the problem of fuzzy joining of strings that naturally tokenize into
meaningful substrings, eg, full names. Tokenized-string joins have several established …

A Top-k retrieval algorithm returns the k best answers of a query according to a given
ranking. From a theoretical point of view, the solution of this query is straightforward if we do …

CURRICULUM VITAE TIAKAS ELEFTHERIOS, MSc, PhD Department: Accounting and
Information Systems – International Hellenic Universi Page 1 CURRICULUM VITAE TIAKAS …