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SCIENTIFIC PUBLICATIONS
(offprints and e-versions available on request)
PAPERS IN CONFERENCE PROCEEDINGS
 
  c1. Vassilakopoulos M. and Manolopoulos Y., Comparative Analysis of Storage Requirements of Region Quadtrees and Bintrees, Proc. of the 4th Panhellenic Conf. on Informatics, Patras (1993), 59-70, (in greek)
  c2. M. Vassilakopoulos and Y. Manolopoulos, Analytical results on the quadtree storage-requirements, Proc. of the 5th Inter. Conf. on Computer Analysis of Images and Patterns (CAIP), LNCS 719, Spinger Verlag, Budapest (1993), 41-48
  c3. M. Vassilakopoulos and Y. Manolopoulos, On sampling from spatial databases, Proc.of the 2nd Hellenic-European Research on Mathematics and Informatics (HERMIS) Inter. Conf., Athens (1994), Vol 2, 651-658
  c4. Vassilakopoulos M., Papadopoulos A. and Manolopoulos Y., Indexes for Image Bases, Proc. of the 5th Panhellenic Conf. on Informatics, Athens (1995), Vol 1, 351-360, (in greek)
  c5. Y. Manolopoulos, E. Nardelli, G. Proietti and M. Vassilakopoulos, On the generation of aggregated random spatial regions, Proc. of the 1995 ACM Conf. on Information and Knowledge Management (CIKM'95), Baltimore MD (1995), 318-325
  c6. M. Vassilakopoulos, Fuzzy subimage pattern searching, Proc. of the 6th Panhellenic Conf on Informatics, Athens (1997), Vol 1, 261-270, (in greek)
  c7. M. Vassilakopoulos and Y. Manolopoulos, Processing of Joins between R-trees and Linear Region Quadtrees, Proc. of the 1st New Information Technology Conference, Athens (1998) 225-234
  c8. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Overlapping Linear Quadtrees: a Spatio-temporal Access Method, Proc. of the 6th ACM GIS, Bethesda MD (1998), 1-7
  c9. A. Corral, M. Vassilakopoulos and Y. Manolopoulos, Algorithms for Joining R-trees and Linear Region Quadtrees, Proc. of  SSD’99, LNCS 1651, Spinger Verlag, Hong Kong (1999), 251-269
  c10. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Processing of Spatio-Temporal Queries in Image Databases, Proc. of ADBIS'99, LNCS 1691, Spinger Verlag, Maribor (1999), 85-97
  c11. M. Vassilakopoulos and Y. Manolopoulos, External Balanced Regular (x-BR) Trees: new Structures for Very Large Spatial Databases, Proc. of the 7th Panhellenic Conf. on Informatics, Ioannina (1999), III.61-III.68
  c12. A. Corral and M. Vassilakopoulos, Esquemas de Indexación Espacio-Temporales para Datos Microclimáticos (Spatio-Temporal Indexing Schemes for Microclimatic Data Sets), Proc. of IV Jornadas de Ingenería del Software y Bases de Datos (JISBD 1999), Caceres (1999), 61-62
  c13. A. Corral, Y. Manolopoulos, Y. Theodoridis and M. Vassilakopoulos, Closest Pair Queries in Spatial Databases, Proc. of the 2000 ACM SIGMOD, Dallas TX (2000), 189-200
  c14. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Multiversion Linear Quadtree for Spatio-Temporal Data, Proc. of the 2000 ADBIS – DASFAA, LNCS 1884, Spinger Verlag, Prague (2000), 279-292
  c15. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Time Split Linear Quadtrees for Indexing Image Databases, Proc. of ICIP’01, Thessaloniki (2001), 733-736
  c16. A. Corral, M. Vassilakopoulos and Y. Manolopoulos, The Impact of Buffering on Closest Pairs Queries using R-trees, Proc. of ADBIS'01, LNCS 2151, Spinger Verlag, Vilnius (2001), 41-54
  c17. A. Nanopoulos and M. Vassilakopoulos, A performance comparison of R-tree deletion algorithms, Proc. of the 8th Panhellenic Conf. on Informatics, Nicosia (2001), Vol A, 118-127
  c18. A. Corral, J. Rodriguez and M. Vassilakopoulos, Distance-Based Queries in Multidimensional Data Spaces using R-trees, Proc. of the 8th Panhellenic Conf. on Informatics, Nicosia (2001), Vol A, 237-246
  c19. A. Vontas, F. Koutsakas, C. Athanasopoulou, A. Koumpis, P. Hatzaras, Y. Manolopoulos and M. Vassilakopoulos, Intergating Mobile Agent Infrastructures in Operational ERP Systems, Proc. 4th Int. Conf. on Enterprise Information Systems, Ciudad Real (2002), 1107-1111
  c20. A. Corral, J. Cañadas and M. Vassilakopoulos, Improvements of Approximate Algorithms for Distance-Based Queries, Proc. 1st HDMS,  Athens (2002), 83-102
  c21. A. Corral, J. Cañadas and M. Vassilakopoulos, Approximate Algorithms for Distance-Based Queries in High-Dimensional Data Spaces using R-trees, Proc. of ADBIS'02, LNCS2435, Bratislava (2002),163-176
  c22. A. Corral, Y. Manolopoulos, Y. Theodoridis and M. Vassilakopoulos, Distance Join Queries of Multiple Inputs in Spatial Databases, Proc. of ADBIS'03, LNCS 2798, Dreden (2003), 323-338
    c23. A. Corral, Y. Theodoridis and M. Vassilakopoulos, A Cost Model for K-Closest-Pair Queries, Proc.of 1st Balkan Conf. on Informatics (BCI'2003), Thessaloniki (2003), 203-216
    c24. Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos, Towards Quadtree-Based Moving Objects Databases Proc. of ADBIS'04, 230-245
    c25. Corral Antonio, D’Ermiliis Alejandro, Manolopoulos Yannis, Vassilakopoulos Michael, VA-files vs. R*-trees in Distance Join Queries, Proc. of ADBIS'05, 153-166
    c26. K. Raptopoulou, M.Vassilakopoulos and Y. Manolopoulos, Efficient Processing of Past-Future Spatiotemporal Queries, Proc. of 21st Annual ACM Symposium on Applied Computing (SAC’06), Track on Advances in Spatial and Image-based Information Systems (ASIIS-06) , Dijon – France (2006), 68-72
    c27. Valova, B. Rachev and M. Vassilakopoulos, Optimization of the Algorithm for Image Retrieval by Color Features, to appear in Proc. of Int. Conf. on Computer Systems and Technologies and Workshop for PhD Students in Computing (CompSysTech’06).

 
 
PAPERS IN SCIENTIFIC JOURNALS

  j1. M. Vassilakopoulos, Y. Manolopoulos and K. Economou, Overlapping quadtrees for the representation of similar images, Image and Vision Computing, Vol 11 No 5 (1993), 257-262
  j2. M. Vassilakopoulos and Y. Manolopoulos, Analytical comparison of two spatial data structures, Information Systems, Vol 19 No 7 (1994), 569-582
  j3. M. Vassilakopoulos, Y. Manolopoulos and B. Kröll, Efficiency analysis of overlapped quadtrees, Nordic Journal of Computing (ex BIT), Vol 2 (1995), 70-84
  j4. M. Vassilakopoulos and Y. Manolopoulos, Dynamic inverted quadtree: a structure for pictorial databases, Information Systems (special issue on Multimedia Information Systems), Vol 20 No 6 (1995), 483-500
  j5. M. Vassilakopoulos and Y. Manolopoulos, Α random model for analyzing region quadtrees, Pattern Recognition Letters, Vol 16 (1995), 1137-1145
  j6. Y. Manolopoulos, E. Nardelli, G. Proietti and M. Vassilakopoulos, On the creation of quadtrees by using a branching process, Image and Vision Computing, Vol 14 No 2 (1996), 159-164
  j7. M. Vassilakopoulos and Y. Manolopoulos, On sampling regional data, Data and Knowledge Engineering, Vol 22 (1997), 309-318
  j8. E. Tousidou, M. Vassilakopoulos and Y. Manolopoulos, Performance Evaluation of Parallel S-Trees, Journal of Database Managenent, Vol 11 No 3 (2000), 28-34
  j9. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Overlapping Linear Quadtrees and Spatio-temporal Query Processing, The Computer Journal, Vol 43, No 4 (2000), 325-343
  j10. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, On the Generation of Time-evolving Regional Data, GeoInformatica, Vol 6, No.3, (2002), 207-231
    j11. A. Nanopoulos, M. Vassilakopoulos and Y. Manolopoulos, Performance Evaluation of Lazy Deletion Methods in R-trees, GeoInformatica, Vol 7, No.4 (2003), 337-354
    j12. T. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Benchmarking Access Methods for Time-Evolving Regional Data, Data & Knowledge Engineering, Vol.49, No.3 (2004), 243-286
    j13. A. Corral, Y. Manolopoulos, Y. Theodoridis and M. Vassilakopoulos, Algorithms for Processing K-Closest-Pair Queries in Spatial Databases, Data & Knowledge Engineering, Vol. 49,  No.1 (2004), 67-104
    j14. A. Styliadis and M. Vassilakopoulos, A spatio-temporal geometry-based model for digital documentation of historical living systems, Information & Management,  Vol. 42, No. 2, 349-359
    j15. A. Corral, Y. Manolopoulos, Y. Theodoridis and M. Vassilakopoulos, Multi-way Distance Join Queries in Spatial Databases, GeoInformatica, Vol. 8, No. 4, 373 - 402
    j16. A. Corral and M. Vassilakopoulos, On Approximate Algorithms for Distance-Based Queries using R-trees, The Computer Journal, Vol. 48, No 2, 220 – 238
    j17.  Y.Manolopoulos, A.Corral, Y.Theodoridis and M.Vassilakopoulos, Cost Models for Distance Joins Queries using R-trees, Data & Knowledge Engineering, Vol .57, No.1 (2006), 1-36
    j18.  Katerina Raptopoulou, Michael Vassilakopoulos, Yannis Manolopoulos, On Past-Time Indexing of Moving Objects, Journal of Systems and Software, Vol.79, No.8 (2006), 1079-1091  
CONTRIBUTIONS IN BOOKS, POST-PROCEEDINGS, BULLETINS, ENCYCLOPEDIAS

  b1. Vassilakopoulos M. and Manolopoulos Y., Physical Structures for Spatial Databases, chapter in the book Special Topics on Databases, Greek Computer Society, Athens (1993) 23-48, (in greek)
  b2. M. Vassilakopoulos and Y. Manolopoulos, External Balanced Regular (x-BR) Trees: New Structures for Very Large Spatial Databases, section in the Book Advances in Informatics, World Scientific Publishing Co, Singapore (2000), 324-333 (refereed republication of c11)
  b3. Reasearch Team of ChoroChronos Project, Access Methods and Query Processing Techniques, chapter in the book Spatiotemporal Databases: the ChoroChronos Approach, LNCS 2520, Springer Verlag (2003)
  b4. Corral A., Cañadas J. and Vassilakopoulos M., Processing Distance-Based Queries in Multidimensional Data Spaces using R-trees, Post-proceedings of the 8th Panhellenic Conference in Informatics, LNCS 2563, Springer Verlag (2003) 1-18
    b5. Tzouramanis, M. Vassilakopoulos and Y. Manolopoulos, Generating Dynamic Raster Data, IEEE Data Engineering Bulletin, Vol 26, No 2, (June 2003) 33-39 (invited contribution)
    b6. A. Corral & M. Vassilakopoulos, Approximate Computation of Distance based Queries, chapter in the book «Spatial Databases: Technologies, Techniques and Trends», Idea Group Publishing (2005), 130-154
    b7. M. Vassilakopoulos & A. Corral, Spatio-Temporal Indexing Techniques, «Encyclopedia of Database Technologies and Applications», Idea Group Publishing, 652-657
    b8. A. Corral & M. Vassilakopoulos, Query Processing in Spatial Databases, «Encyclopedia of Database Technologies and Applications», Idea Group Publishing, 511-516
    b9. M. Vassilakopoulos, A.Corral, B.Rachev, I.Valova, and M. Stoeva, Image Database Indexing Techniques, to appear in the Encyclopedia of Geoinformatics, Idea Group Publishing
    b10. M. Vassilakopoulos, Spatial Network Databases, to appear in the 2nd edition of the Encyclopedia of Database Technologies and Applications, Idea Group Publishing

CO-EDITOR OF BOOKS
    "Spatial Databases: Technologies, Techniques and Trends", book edited by Y. Manolopoulos, A. Papadopoulos and M. Vassilakopoulos, Idea Group Publishing, ISBN 1-59140-387-1 (hard cover) and 1-59140-388-X (soft cover)