16 Skyline and Top-k Queries in Distributed and Parallel Environments Christos Doulkeridis Daisy Center November 2009 2009 Aalborg, Denmark 15 Efficient Top-k Query Processing in Distributed Environments Christos Doulkeridis Ecole Polytechnique Federale Lausanne (EPFL) May 2009 2009 Lausanne, Swiss 14 Efficient Similarity Search in Highly Distributed Environments Christos Doulkeridis, Akrivi Vlachou, Yannis Kotidis, Michalis Vazirgiannis 7th Hellenic Data Management Symposium (HDMS'08) July 2008 2008 Heraklion, Crete 13 Schema-Assisted Peer Selection for XML Querying in Unstructured P2P Systems Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis 7th ACM International Workshop on Data Engineering for Wireless and Mobile Access (MobiDE'08) June 13, 2008 2008 Vancouver, Canada 12 Peer-to-Peer Similarity Search in Metric Spaces Christos Doulkeridis, Akrivi Vlachou, Yannis Kotidis, Michalis Vazirgiannis 33rd International Conference on Very Large Data Bases (VLDB'07) September 23-27, 2007 2007 Vienna, Austria ./presentations/vldb07.pdf 11 Decentralized and Distributed Semantic Overlay Generation in P2P Networks Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis National Technical University of Athens November 27, 2006 2006 Greece ./presentations/NTUA06.pdf 10 The SOWES Approach to P2P Web Search using Semantic Overlays Kjetil Nørvåg, Christos Doulkeridis, Michalis Vazirgiannis 5th Hellenic Data Management Symposium (HDMS'06) September 7-8, 2006 2006 Thessaloniki, Greece ./presentations/HDMS06.pdf 9 Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis Schema Caching for Improved XML Query Processing in P2P Systems 6th IEEE International Conference on Peer-to-Peer Computing (P2P'06) September 2006 2006 Cambridge, UK ./presentations/P2P06.pdf 8 Christos Doulkeridis, Kjetil Nørvåg, Michalis Vazirgiannis Scalable Semantic Overlay Generation for P2P-based Digital Libraries 10th European Conference on Research and Advanced Technology for Digital Libraries (ECDL'06) September 2006 2006 Alicante, Spain ./presentations/ecdl06.pdf 7 A System Architecture for Context-Aware Service Discovery Christos Doulkeridis, Nikos Loutas, Michalis Vazirgiannis 1st International Workshop on Context for Web Services (CWS'05), (Held in conjunction with the 5th International and Interdisciplinary Conference on Modeling and Using Context) July 5th, 2005 2005 Paris, France ./presentations/CWS05.pdf 6 The Role of Caching and Context-Awareness in P2P Service Discovery Christos Doulkeridis, Vassilis Zafeiris, Michalis Vazirgiannis 6th International Conference on Mobile Data Management (MDM'05) May 9-13, 2005 2005 Agia Napa, Cyprus ./presentations/MDM05.pdf 5 Querying and Updating a Context-Aware Service Directory in Mobile Environments Christos Doulkeridis, Michalis Vazirgiannis 2004 IEEE/WIC/ACM International Conference on Web Intelligence (WI'04) September 20-24, 2004 2004 Beijing, China ./presentations/WI04.pdf 4 Updating a Context-Aware Service Directory for M-Services Christos Doulkeridis, Michalis Vazirgiannis 3rd Hellenic Data Management Symposium (HDMS'04) June 28-29, 2004 2004 Athens, Greece ./presentations/HDMS04.pdf 3 Querying and Updating a Context-Aware Service Directory in Mobile Environments Christos Doulkeridis, Michalis Vazirgiannis 14th World Congress on Information Technology (WCIT 2004) May 2004 2004 Athens, Greece [2nd winner of "Michael Dertouzos competition" on IT with a Human Face] ./presentations/WCIT04.pdf 2 Context Management in Mobile Service Discovery Christos Doulkeridis, Efstratios Valavanis, Michalis Vazirgiannis International Workshop on Global Computing (GC 2004) March 2004 2004 Rovereto, Italy ./presentations/GC0403.pdf 1 Towards a Context-Aware Service Directory Christos Doulkeridis, Efstratios Valavanis, Michalis Vazirgiannis 4th VLDB Workshop on Technologies for E-Services (TES'03), held in conjunction with the 29th International Conference on Very Large Data Bases (VLDB 2003) September 8, 2003 2003 Berlin, Germany ./presentations/TES03.pdf