Efficient Processing of Top-k Spatial Keyword Queries. - João B. Rocha-Junior; Orestis Gkorgkas; Simon Jonassen; Kjetil Nørvåg (SSTD, 2011)

A Framework for Grouping and Summarizing Keyword Search Results. - Orestis Gkorgkas; Kostas Stefanidis; Kjetil Nørvåg (ADBIS, 2013)

Discovering Influential Data Objects over Time. - Orestis Gkorgkas; Akrivi Vlachou; Christos Doulkeridis; Kjetil Nørvåg (SSTD, 2013)

Efficient processing of exploratory top-k joins. - Orestis Gkorgkas; Akrivi Vlachou; Christos Doulkeridis; Kjetil Nørvåg (SSDBM, 2014)

Finding the Most Diverse Products using Preference Queries. - Orestis Gkorgkas; Akrivi Vlachou; Christos Doulkeridis; Kjetil Nørvåg (EDBT, 2015)

Maximizing Influence of Spatio-Textual Objects Based on Keyword Selection. - Orestis Gkorgkas; Akrivi Vlachou; Christos Doulkeridis; Kjetil Nørvåg (SSTD, 2015)

Database Content Exploration and Exploratory Analysis of User Queries. - Orestis Gkorgkas (2015)

Top-k Dominating Queries, in Parallel, in Memory. - Sean Chester; Orestis Gkorgkas; Kjetil Nørvåg (EDBT, 2016)

Exploratory product search using top-k join queries. - Orestis Gkorgkas; Akrivi Vlachou; Christos Doulkeridis; Kjetil Nørvåg (Inf. Syst., 2017)