Query Processing in RDF/S-Based P2P Database Systems. - George Kokkinidis; Lefteris Sidirourgos; Vassilis Christophides (Semantic Web and Peer-to-Peer, 2006)

Indexing views to route queries in a PDMS. - Lefteris Sidirourgos; Giorgos Kokkinidis; Theodore Dalamagas 001; Vassilis Christophides; Timos K. Sellis (Distributed Parallel Databases, 2008)

Column-store support for RDF data management: not all swans are white. - Lefteris Sidirourgos; Romulo Goncalves; Martin L. Kersten; Niels Nes; Stefan Manegold (Proc. VLDB Endow., 2008)

Space-economical partial gram indices for exact substring matching. - Nan Tang 001; Lefteris Sidirourgos; Peter A. Boncz (CIKM, 2009)

Generic and updatable XML value indices covering equality and range lookups. - Lefteris Sidirourgos; Peter A. Boncz (EDBT/ICDT Workshops, 2009)

Positional update handling in column stores. - Sándor Héman; Marcin Zukowski; Niels J. Nes; Lefteris Sidirourgos; Peter A. Boncz (SIGMOD Conference, 2010)

SciBORQ: Scientific data management with Bounds On Runtime and Quality. - Lefteris Sidirourgos; Martin L. Kersten; Peter A. Boncz (CIDR, 2011)

Heuristics-based query optimisation for SPARQL. - Petros Tsialiamanis; Lefteris Sidirourgos; Irini Fundulaki; Vassilis Christophides; Peter A. Boncz (EDBT, 2012)

Scientific discovery through weighted sampling. - Lefteris Sidirourgos; Martin L. Kersten; Peter A. Boncz (IEEE BigData, 2013)

Column imprints: a secondary index structure. - Lefteris Sidirourgos; Martin L. Kersten (SIGMOD Conference, 2013)

A Database System with Amnesia. - Martin L. Kersten; Lefteris Sidirourgos (CIDR, 2017)

Scaling column imprints using advanced vectorization. - Lefteris Sidirourgos; Hannes Mühleisen (DaMoN, 2017)

Adaptive Compression for Fast Scans on String Columns. - Yannis Foufoulas; Lefteris Sidirourgos; Elefterios Stamatogiannakis; Yannis E. Ioannidis (SIGMOD Conference, 2021)