Publications supported by the NSF CAREER Award IIS-0133825

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  1. Vassilis Athitsos, Panagiotis Papapetrou, Michalis Potamias, George Kollios, and Dimitrios Gunopulos. Approximate Embedding-Based Subsequence Matching of Time Series. To Appear in the Proc. of the 28th ACM SIGMOD International Conference on Management of Data, Vancouver, Canada, June 2008. [PDF]
  2. Ke Yi, Feifei Li, Marios Hadjieleftheriou, Divesh Srivastava, and George Kollios. Randomized Synopses for Query Assurance on Data Streams. Proc. of the 24th IEEE ICDE International Conference on Data Engineering, Cancun, Mexico, April 2008. [PDF]
  3. Ying Yang, Stavros Papadopoulos, Dimitris Papadias, and George Kollios. Spatial Outsourcing for Location-based Services. Proc. of the 24th IEEE ICDE International Conference on Data Engineering, Cancun, Mexico, April 2008. [PDF]
  4. Ke Yi, Feifei Li, Divesh Srivastava, and George Kollios. Efficient Processing of Top-k Queries in Uncertain Databases. Proc. of the 24th IEEE ICDE International Conference on Data Engineering, Cancun, Mexico, April 2008. (3 page Poster) [PDF]
  5. Spiros Papadimitriou, Feifei Li, George Kollios, and Philip S. Yu. Time Series Compressibility and Privacy. Proc. of the 33rd VLDB International Conference on Very Large Databases, Vienna, Austria, September 2007. [PDF]
  6. Feifei Li, Ke Yi, Marios Hadjieleftheriou, and George Kollios. Proof-Infused Streams: Enabling Authentication of Sliding Window Queries On Streams. Proc. of the 33rd VLDB International Conference on Very Large Databases, Vienna, Austria, September 2007. [PDF]
  7. Vassilis Athitsos, Marios Hadjieleftheriou, George Kollios, and Stan Sclaroff. Query-Sensitive Embeddings. ACM TODS, Vol. 32, No. 2, June 2007. [PDF]
  8. Jimeng Sun, Yufei Tao, Dimitris Papadias, and George Kollios. Spatio-Temporal Join Selectivity. Information Systems, Vol. 31, No. 8, pp. 793-813, December 2006. [PDF]
  9. Feifei Li, Marios Hadjieleftheriou, George Kollios, and Leonid Reyzin. Dynamic Authenticated Index Structures for Outsourced Databases. Proc. of the 25th ACM SIGMOD International Conference on Management of Data, Chicago, Illinois, June 2006. [PDF]
  10. Marios Hadjieleftheriou, George Kollios, Vassilis Tsotras, and Dimitris Gunopulos.  Indexing Spatio-Temporal Archives. VLDB Journal, Vol. 15, No. 2, pp. 143-164, June 2006. [PDF]
  11. Marios Hadjieletheriou, George Kollios, Petko Bakalov, and Vassilis Tsotras. Complex Spatio-Temporal Pattern Queries. Proc. of the 31st International Conference on Very Large Data Bases (VLDB), Trondheim, Norway, August 2005. [PDF]
  12. Feifei Li, Dihan Chen, Marios Hadjieleftheriou, George Kollios, and Shang-Hua Teng. On Trip Planning Queries in Spatial Databases. Proc. of the 9th International Symposium on Spatial and Temporal Databases (SSTD), Angra dos Reis, Brazil, August 2005. [PDF]
  13. Dimitrios Gunopoulos, George Kollios, Vassilis Tsotras, and  Carlotta Domeniconi. Selectivity Estimators for Multi-Dimensional Range Queries Over Real Attributes. VLDB Journal, Vol. 14, No. 2, pp. 137-154, April 2005.  [PDF]
  14. Michail Vlachos, George Kollios, and Dimitrios Gunopulos. Elastic Translation Invariant Matching of Trajectories. Machine Learning Journal, Vol. 58, No. 2, pp. 301-334, February 2005. [link]
  15. George Kollios, Dimitris Papadopoulos, Dimitrios Gunopulos, and Vassilis Tsotras. Indexing Mobile Objects Using Dual Transformations. VLDB Journal, Vol. 14, No. 2, pp. 238-256, April 2005. [PDF]
  16. Nikos Mamoulis, Huping Cao, George Kollios, Marios Hadjieleftheriou, Yufei Tao, and David Cheung. Mining, Indexing, and Querying Historical Spatio-Temporal Data. Proceedings of the  10th ACM International Conference on Knowledge Discovery and Data Mining (SIGKDD), Seattle, WA, August 2004. [PDF]
  17. Marios Hadjieleftheriou, Vassil Kriakov, Yangui Tao, George Kollios, Alex Delis, and Vassilis Tsotras. Spatio-Temporal Data Services in a Shared-Nothing Environment. Proceedings of the 16th International Conference on Scientific and Statistical Database Management (SSDBM), Santorini, Greece, June 2004. [PDF]
  18. Jeffrey Considine, Feifei  Li, George Kollios, and John Byers. Approximate Aggregation Techniques for Sensor Databases.  Proceedings of 20th IEEE International Conference on Data Engineering (ICDE), Boston, MA, March 30 - April 2, 2004.  [PDF] (co-best paper award)
  19. Yufei Tao, George Kollios, Jeffrey Considine, Feifei  Li, and Dimitris Papadias. Spatio-Temporal Aggregation Using Sketches. Proceedings of 20th IEEE International Conference on Data Engineering (ICDE), Boston, MA, March 30 - April 2, 2004. [PDF]
  20. Marios Hadjieleftheriou, George Kollios, Vassilis Tsotras, and Dimitris Gunopulos.  On-Line Discovery of Dense Areas in Spatio-temporal Databases. Proceedings of the 8th International Symposium on Spatial and Temporal Databases (SSTD),  Santorini, Greece, July 2003. [PDF]
  21. Jonathan Alon, Stan Sclaroff, George Kollios, and Vladimir Pavlovic. Discovering Clusters in Motion Time-Series Data. Proceedings of the 2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Madison, WI, June 2003. [PDF]
  22. Marios Hadjieleftheriou, George Kollios, and Vassilis Tsotras. Performance Evaluation of Spatio-temporal Selectivity Estimation Techniques. Proceedings of the 15th International Conference on Scientific and Statistical Database Management (SSDBM), Cambridge, Massachusetts, July 2003. [PDF]
  23. Michail Vlachos, Carlotta Domeniconi, Dimitrios Gunopulos, George Kollios, and Nick Koudas. Non-linear dimensionality reduction techniques for classification and visualization. Proceedings of the ACM SIGKDD 2002. Edmonton, Alberta, Canada, July 2002. [PDF]
  24. Dimitris Papadopoulos, George Kollios, Dimitrios Gunopulos, and Vassilis Tsotras. Indexing Mobile Objects on the Plane. MDDS 02, Aix-en-Provence, France, 2002.[PDF]

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