@conference {DBLP:conf/ssdbm/KaffesBSS18,
	title = {Finding shortest keyword covering routes in road networks},
	booktitle = {Proceedings of the 30th International Conference on Scientific and Statistical Database Management, SSDBM 2018, Bozen-Bolzano, Italy, July 09-11, 2018},
	year = {2018},
	pages = {12:1{\textendash}12:12},
	doi = {10.1145/3221269.3223038},
	url = {https://doi.org/10.1145/3221269.3223038},
	author = {Vassilis Kaffes and Alexandros Belesiotis and Dimitrios Skoutas and Spiros Skiadopoulos}
}
@article {DBLP:journals/jbd/Chatzigeorgakidis18,
	title = {FML-kNN: scalable machine learning on Big Data using \emphk-nearest neighbor joins},
	journal = {J. Big Data},
	volume = {5},
	year = {2018},
	pages = {4},
	doi = {10.1186/s40537-018-0115-x},
	url = {https://doi.org/10.1186/s40537-018-0115-x},
	author = {Georgios Chatzigeorgakidis and Sophia Karagiorgou and Spiros Athanasiou and Spiros Skiadopoulos}
}
@conference {DBLP:conf/esws/ZervakisTSK16,
	title = {Full-Text Support for Publish/Subscribe Ontology Systems},
	booktitle = {The Semantic Web. Latest Advances and New Domains - 13th International Conference, ESWC 2016, Heraklion, Crete, Greece, May 29 - June 2, 2016, Proceedings},
	year = {2016},
	pages = {233{\textendash}249},
	doi = {10.1007/978-3-319-34129-3_15},
	url = {https://doi.org/10.1007/978-3-319-34129-3_15},
	author = {Lefteris Zervakis and Christos Tryfonopoulos and Spiros Skiadopoulos and Manolis Koubarakis}
}
@article {DBLP:journals/corr/ZervakisTPKS13,
	title = {Full-text Support for Publish/Subscribe Ontology Systems},
	journal = {CoRR},
	volume = {abs/1307.2015},
	year = {2013},
	url = {http://arxiv.org/abs/1307.2015},
	author = {Lefteris Zervakis and Christos Tryfonopoulos and Antonios Papadakis-Pesaresi and Manolis Koubarakis and Spiros Skiadopoulos}
}
@conference {554,
	title = {Full-text Support for Publish/Subscribe Ontology Systems},
	booktitle = {Proceedings of the Extended Semantic Web Conference (ESWC)},
	year = {2012},
	month = {May},
	address = {Crete, Greece},
	author = {Lefteris Zervakis and Christos Tryfonopoulos and Antonios Papadakis-Pesaresi and Manolis Koubarakis and Spiros Skiadopoulos}
}
@article {DBLP:journals/tkde/SkiadopoulosSSK07,
	title = {A Family of Directional Relation Models for Extended Objects},
	journal = {IEEE Trans. Knowl. Data Eng.},
	volume = {19},
	number = {8},
	year = {2007},
	pages = {1116{\textendash}1130},
	doi = {10.1109/TKDE.2007.1046},
	url = {https://doi.org/10.1109/TKDE.2007.1046},
	author = {Spiros Skiadopoulos and Nikos Sarkas and Timos K. Sellis and Manolis Koubarakis}
}
