Publication

Bioinformatics

• Smolign: A Spatial Motifs Based Protein Multiple Structural Alignment Method, H. Sun, A. Sacan, H. Ferhatosmanoglu, Y. Wang, IEEE/ACM Transactions on Computational Biology and Bioinformatics, to appear.
• MicroarrayDesigner: an online search tool and repository for near-optimal microarray experimental designs. A. Sacan, N. Ferhatosmanoglu, H. Ferhatosmanoglu. BMC Bioinformatics 10:304, September 2009. Microarray Designer Web Server
• Mutual Information Based Extrinsic Similarity for Microarray Analysis. D. Ucar, F. Altiparmak, H. Ferhatosmanoglu, S. Parthasarathy: BICoB, April 2009, pp. 424-436.
• Integrated Search and Alignment of Protein Structures. A. Sacan, I. H. Toroslu, and H. Ferhatosmanoglu. Bioinformatics, vol. 24, no. 14, December 2008, pp. 2872-9. Vorometric Web Server
• An Enhanced Partial Order Curve Comparison Algorithm and its Application to Analyzing Protein Folding Trajectories H. Sun, H. Ferhatosmanoglu, M. Ota, Y. Wang. BMC BioInformatics 2008, 9 : 344. EPO Web Server
• CellTrack: An Open-Source Software for Cell Tracking and Motility Analysis. A. Sacan, H. Ferhatosmanoglu, H. Coskun, Bioinformatics, vol. 24, no. 14, July 2008, pp. 1647-1649. CellTrack Web Server
• LFM-Pro: A Tool for Detecting Significant Local Structural Sites in Proteins. A. Sacan, O. Ozturk, H. Ferhatosmanoglu, Y. Wang. Bioinformatics, Vol. 23, No. 6, pp. 709-716, March 2007. LFM-Pro Software
• Enhanced Partial Order Curve Comparison over Multiple Protein Folding Trajectories. H. Sun, H. Ferhatosmanoglu, M. Ota, Y. Wang, CSB 2007.
• Information Mining over Heterogeneous and High Dimensional Time Series Data in Clinical Trials Databases. F. Altiparmak, H. Ferhatosmanoglu, S. Erdal, C. Trost. IEEE Transactions on Information Technology in Biomedicine, 10(2): 254- 263 (April 2006).
• CoMRI: A Compressed Multi-Resolution Index Structure for Sequence Similarity Queries. H. Sun, O. Ozturk and H. Ferhatosmanoglu. IEEE Computer Society Bioinformatics Conference (CSB '03), pp. 553-558. Stanford, CA, August 2003.
• Investigating the use of Extrinsic Similarity Measures for Microarray Analysis. D. Ucar, F. Altiparmak, H. Ferhatosmanoglu, S. Parthasarathy. BIOKDD workshop at the ACM KDD, 2007.

Social Networks & Twitter

• Short Text Classification in Twitter to Improve Information Filtering. E. Demir, D. Fuhry, B. Sriram, M. Demirbas, H. Ferhatosmanoglu. Proceedings of the ACM SIGIR 2010 Posters and Demos, Geneva, Switzerland, to appear.
• Crowd-sourced Sensing and Collaboration Using Twitter. M. Demirbas, C. Akcora, M. Bayir, Y. Yilmaz, H. Ferhatosmanoglu. Proceedings of IEEE WoWMoM, 2010, Montreal, Canada, June 2010.
• Identifying Breakpoints in Public Opinion. C. Akcora, M. Bayir, M. Demirbas, H. Ferhatosmanoglu, Social Media Analytics, SIGKDD Workshop, July 2010.

Database Systems and Applications

• Secondary Bitmap Indexes with Vertical and Horizontal Partitioning . G. Canahuate, T. Apaydin, A. Sacan, H. Ferhatosmanoglu , EDBT, March 2009, pp 600-611.
• Incremental Maintenance of Online Summaries Over Multiple Streams. F. Altiparmak, E. Tuncel, H. Ferhatosmanoglu. IEEE TKDE 20(2), Feb. 2008, pp. 216-229.
• Online Index Recommendations for High-Dimensional Databases using Query Workloads. M. Gibas, G. Canahuate, H. Ferhatosmanoglu. IEEE TKDE 20(2), Feb. 2008, pp. 246-260.
• Analysis of Basic Data Reordering Techniques. T. Apaydin, A. Tosun, H. Ferhatosmanoglu: SSDBM, 20^th Scientific and Statistical Data Management Conference, pp. 517-524, July 2008.
• Dynamic Data Organization for Bitmap Indices. T. Apaydin, G. Canahuate, H. Ferhatosmanoglu, A. Tosun, 3rd International Conference on Scalable Information Systems, June 2008.
• A General Framework for Modeling and Processing Optimization Queries. M. Gibas, N. Zheng, H. Ferhatosmanoglu, VLDB '07, pp. 1069-1080.
• Access Structures for Angular Similarity Queries. T. Apaydin and H. Ferhatosmanoglu. IEEE TKDE, vol. 16, no. 6, 14 pp. 1512-1525, November 2006.
• High Dimensional Nearest Neighbor Searching. H. Ferhatosmanoglu, E. Tuncel, D. Agrawal, A. El Abbadi. Information Systems Journal, Volume 31, Issue 6, September 2006, pp. 512-540.
• Efficient Parallel Processing of Range Queries through Replicated Declustering. H. Ferhatosmanoglu, A. Tosun, G. Canahuate, A. Ramachandran. Distributed and Parallel Databases Journal, vol. 20, no. 2, pp. 117-148, September 2006.
• Online Summarization of Dynamic Time Series Data. U. Ogras and H. Ferhatosmanoglu. VLDB Journal, 15(1): 84-98 (January 2006).
• Approximate Encoding for Direct Access and Query Processing over Compressed Bitmaps. T. Apaydin, G. Canahuate, H. Ferhatosmanoglu, A. Tosun. 32^nd International Conference on Very Large Data Bases (VLDB ’06), Seoul, Korea, September, 2006, pp. 846-857.
• Indexing Incomplete Databases. G. Canahuate, M. Gibas, H. Ferhatosmanoglu. 10^th International Conference on Extending Database Technology (EDBT ’06). Munich, Germany, March, 2006, pp. 884-901
• Optimal Data-Space Partitioning of Spatial Data for Parallel I/O. H. Ferhatosmanoglu, D. Agrawal, O. Egecioglu, and A. El Abbadi. Distributed and Parallel Databases, 17(1): 75-101 (2005).
• Vector Space Indexing for Biosequence Similarity Searches. O. Ozturk and H. Ferhatosmanoglu. International Journal on Artificial Intelligence Tools, Special Issue on Selected Papers from the IEEE BIBE II, 14(5): 811-826 (2005).
• Compressing Bitmap Indices by Data Reorganization. A. Pinar, T. Tao, H. Ferhatosmanoglu. 21^st IEEE International Conference on Data Engineering (ICDE ’05). Tokyo, Japan, April 2005, pp. 310-321.
• Replicated Declustering of Spatial Data. H. Ferhatosmanoglu, A. Tosun, A. Ramachandran. 23rd ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems (PODS ‘04), pp. 125-135. Paris, France, June 2004.
• Dimensionality Reduction and Similarity Computation using Inner Product Approximations. O. Egecioglu, H. Ferhatosmanoglu, U. Ogras. IEEE TKDE 16(6): 714-726 (June 2004).
• A Time-Series Analysis of Gene Expression Data. S. Erdal, O. Ozturk, D. Armbruster, H. Ferhatosmanoglu, W. Ray. IEEE International Symp. On Bioinformatics and Bioengineering (BIBE ’04), pp. 366-378.

• High Dimensional Reverse Nearest Neighbor Queries. A. Singh, H. Ferhatosmanoglu, A. Tosun. 12th ACM International Conference on Information and Knowledge Management (CIKM'03), pp. 91-98. New Orleans, LA, November 2003.
• Dimensionality Reduction using Magnitude and Shape Approximations. Umit Ogras, Hakan Ferhatosmanoglu. 12th ACM International Conference on Information and Knowledge Management (CIKM'03), pp. 99-107. New Orleans, LA, November 2003.
• Peer-to-Peer Spatial Queries in Sensor Networks. M. Demirbas and H. Ferhatosmanoglu. 3rd IEEE International Conference on Peer-to-Peer Computing (P2P '03), pp.32-39. Linköping, Sweden, September 2003.
• Efficient k-NN Search on Streaming Data Series. X. Liu and H. Ferhatosmanoglu. 8th International Symposium on Spatial and Temporal Databases (SSTD '03), pp. 83-101. Santorini, Greece, July 2003.
• VQ-Index: An Index Structure for Similarity Searching in Multimedia Databases. E. Tuncel, H. Ferhatosmanoglu, K. Rose. ACM Multimedia, pp. 543-552. Juan Les Pins, France, December 2002.
• Vulnerabilities in Similarity Search based Systems. A. Tosun and H. Ferhatosmanoglu. 11th ACM International Conference on Information and Knowledge Management (CIKM '02) , pp. 110-117. Mc Lean, VA, November 2002.
• Optimal Parallel I/O Using Replication. A. Tosun and H. Ferhatosmanoglu. Proceedings of International Conference on Parallel Processing Workshops (ICPPW '02), pp. 506-513. Vancouver, Canada, August 2002.
• Efficient Processing of Conical Queries. H. Ferhatosmanoglu, D. Agrawal, A. El Abbadi. Proceedings of the 10th ACM International Conference on Information and Knowledge Management (CIKM '01), pp. 1-8. Atlanta, USA, November 2001.
• Constrained Nearest Neighbor Queries. H. Ferhatosmanoglu, I. Stanoi, D. Agrawal, A. El Abbadi. 7th International Symposium on Spatial and Temporal Databases (SSTD '01), pp. 257-278. Los Angeles, CA, USA, July 2001.
• Approximate Nearest Neighbor Searching in Multimedia Databases. H. Ferhatosmanoglu, E. Tuncel, D. Agrawal, A. El Abbadi. 17th IEEE International  Conference on Data Engineering (ICDE), pp. 503-511. Heidelberg, Germany, April 2001.
• Vector Approximation based Indexing for Non-uniform High Dimensional Data Sets. H. Ferhatosmanoglu, E. Tuncel, D. Agrawal, A. El Abbadi. Proceedings of the 9th ACM International Conference on Information and Knowledge Management (CIKM), pp. 202-209, Washington, DC, USA, November 2000.
• Dimensionality Reduction and Similarity Distance Computation by Inner Product Approximations. O. Egecioglu and H. Ferhatosmanoglu. Proceedings of the 9th ACM International Conference on Information and Knowledge Management (CIKM), pp. 219-226, Washington, DC, USA, November 2000.
• Clustering Declustered Data for Efficient Retrieval.  H. Ferhatosmanoglu, D. Agrawal, A. El Abbadi. Proceedings of the 8th ACM International Conference on Information and Knowledge Management (CIKM), pp. 343-350, Kansas City, Missouri, USA, November 1999.
• Concentric Hyperspaces and Disk Allocation for Fast Parallel Range Searching.  H. Ferhatosmanoglu, D. Agrawal, A. El Abbadi. Proceedings of the 15th IEEE International Conference on Data Engineering (ICDE), pp. 608-615, Sydney, Australia, March 1999.