Publications

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Conferences/Workshops

GRASP. Extending Graph Separators for the Single-Source Shortest-Path Problem. Alexandros Efentakis, Dieter Pfoser. 22nd Annual European Symposium on Algorithms (ESA 2014), 2014 Full text
Crowdsourcing turning restrictions for OpenStreetMap. Alexandros Efentakis, Sotiris Brakatsoulas, Nikos Grivas, Dieter Pfoser. Mining Urban Data Workshop, 2014 Full text
On Quantifying Qualitative Geospatial Data: A Probabilistic Approach. Georgios Skoumas , Dieter Pfoser , Anastasios Kyrillidis. Proceeding GEOCROWD '13 Proceedings of the Second ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information Pages 71-78 , 2013 Full text
Optimizing Landmark-Based Routing and Preprocessing. Alexandros Efentakis, Dieter Pfoser. Sixth ACM SIGSPATIAL International Workshop on Computational Transportation Science (IWCTS '13), 2013 Full text
Towards a Flexible and Scalable Fleet Management Service. Alexandros Efentakis, Sotiris Brakatsoulas, Nikos Grivas, George Lamprianidis, Kostas Patroumpas, Dieter Pfoser. Sixth ACM SIGSPATIAL International Workshop on Computational Transportation Science (IWCTS '13), 2013 Full text
Isochrones, Traffic and DEMOgraphics. Alexandros Efentakis, Nikos Grivas, George Lamprianidis, Georg Magenschab, Dieter Pfoser. ACM SIGSPATIAL GIS 2013, November 5-8, 2013 Orlando, Florida, USA, 2013 Full text
Segmentation-Based Road Network Construction. Sophia Karagiorgou, Dieter Pfoser, Dimitris Skoutas. ACM SIGSPATIAL GIS 2013, November 5-8, 2013 Orlando, Florida, USA, 2013 Full text
Crowdsourcing computing resources for shortest-path computation. Alexandros Efentakis, Dimitris Theodorakis, Dieter Pfoser. Proc. 20th ACM SIGSPATIAL GIS Conference, 2012 Full text
On Vehicle Tracking Data-Based Road Network Generation. Sophia Karagiorgou, Dieter Pfoser. Proc. 20th ACM SIGSPATIAL GIS Conference, 2012 Full text
Collaborative Geospatial Feature Search. George Lamprianidis, Dieter Pfoser. Proc. 20th ACM SIGSPATIAL GIS Conference, 2012 Full text
Opinion Mapping Travelblogs. Efthymios Drymonas, Alexandros Efentakis, Dieter Pfoser. Terra Cognita Workshop, 2011 Full text
Efficient Data Management in Support of Shortest-Path Computation. Alexandros Efentakis, Dieter Pfoser, Agnes Voisard. 4th ACM SIGSPATIAL International Workshop on Computational Transportation Science, 2011 Full text
Jeocrowd - Collaborative Searching of User-Generated Point Datasets. George Lamprianidis, Dieter Pfoser. ACM SIGPATIAL Symposium (ACM GIS 2012), 2011 Full text
On User-Generated Geocontent. Dieter Pfoser. 12th Symposium on Spatial and Temporal Databases (SSTD), 2011
Mobile Task Computing: Beyond Location-based Services and Ebooks. John Liagouris, Spiros Athanasiou, Alexandros Efentakis, Stefan Pfennigschmidt, Dieter Pfoser, Eleni Tsigka, Agnes Voisard. 10th Int'l Symposium on Web and Wireless Geographical Information Systems (W2GIS), 2011 Full text
Geoblogging: user-contributed geospatial data collection and fusion. Dieter Pfoser, Charikleia Lontou, Euthymios Drymonas, Savvas Georgiou. ACM SIGPATIAL Symposium (ACM GIS 2010): 532-533, 2010 Full text
Geospatial Route Extraction from Texts. Euthymios Drymonas, Dieter Pfoser. ACM SIGSPATIAL International Workshop on Data Mining for Geoinformatics (DMGI), 2010 Full text
Collaborative information spaces: Research directions at IMIS. George Papastefanatos, Yannis Stavrakas, Christos Papatheodorou, Theodore Dalamagas, Dieter Pfoser, Timos Sellis. 2nd ERCIM DIS Workshop on large scale and federated information spaces, Amsterdam, 2010 Full text
A new perspective on efficient and dependable vehicle routing. Dieter Pfoser, Alexandros Efentakis, Agnès Voisard, Carola Wenk. In Proceedings of the 17th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems (ACM GIS), 2009., 2009
Providing Universal Access to History Textbooks: A Modified GIS Case. Dieter Pfoser, Alexandros Efentakis, Thanasis Hadzilacos, Sophia Karagiorgou, Giorgos Vasiliou. In Proceedings of the 9th International Symposium on Web and Wireless Geographical Information Systems (W2GIS), 2009., 2009 Full text
Utilizing Wireless Positioning as a Tracking Data Source. Spiros Athanasiou, Panos Georgantas, George Gerakakis, Dieter Pfoser. SSTD2009: 171-188, 2009 Full text

Journals

Language-Independent Access to History Textbooks - Utilizing GIS Functionality with Spatiotemporal and Thematic Metadata.. Dieter Pfoser, Alexandros Efentakis, Thanasis Hadzilacos, Sophia Karagiorgou, Giorgos Vassiliou. Transactions of GIS 14(6): 773-790, 2010 Full text

Technical Reports

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PhD Theses

Shortest-path algorithms on road networks and real-world applications. Alexandros Efentakis. PhD Thesis, School of Electrical and Computer Engineering, National Technical University of Athens, Greece, 2014 Full text

Diploma Theses

Implementation of Map-Reduce on Spatial Data using the Dijkstra Algorithm on Web Clients. Dimitris Theodorakis. School of Electrical and Computer Engineering, NTUA, 2011 Full text
Mobile Geoblogging Client - Developing a Social Geoblogging Application for Android. Konstantinos Papagiannopoulos. School of Electrical and Computer Engineering, NTUA, 2011
Geotyping - Online Geocoding of Narratives. Sokratis Vidros. School of Electrical and Computer Engineering, NTUA, 2011
Creation of a Multi-Modal Tripplanner for Visitors to Athens. Michail Tziotis. Postgraduate Program in Geoinformatics, School of Rural and Surveying Engineering, NTUA, 2011
Geographic information extraction from user contributed data. Savvas Georgiou. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Geoblogging - Creating a Semantically Rich World Map. Charikleia Lontou. Postgraduate Program in Geoinformatics, School of Rural and Surveying Engineering, NTUA, 2010
Development a Geo Microbogging Application for Android. Nikolaos Tsiougkos. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Geocrowd Explorer : Augmented Reality Application For Consumption of Geoblogging Content. Stelios Doudalis. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Semi-automatic Geocoding for Prersistent Web pages. Charikleia Lontou. School of Electrical and Computer Engineering, NTUA, 2008 Full text

Books

Proceedings of the 12th International Symposium on Advances in Spatial and Temporal Databases. Pfoser, D., Tao, Y., Mouratidis, K., Nascimerento, M., Mokbel, M., Shekhar, S., and Huang, Y.. Springer-Verlag, 2011 Full text