Profile-Based Selection of Expert Groups. - Georgios A. Sfyris; Nikolaos Fragkos; Christos Doulkeridis (TPDL, 2016)

Parallel and Distributed Processing of Reverse Top-k Queries. - Panagiotis Nikitopoulos; Georgios A. Sfyris; Akrivi Vlachou; Christos Doulkeridis; Orestis Telelis (ICDE, 2019)

Pruning techniques for parallel processing of reverse top-k queries. - Panagiotis Nikitopoulos; Georgios A. Sfyris; Akrivi Vlachou; Christos Doulkeridis; Orestis Telelis (Distributed Parallel Databases, 2021)