Hakan Ferhatosmanoglu

Associate Professor

Computer Science and Engineering

RESEARCH INTERESTS:

Data-systems, scalable data analytics, multi-dimensional data management

WORK EXPERIENCE:

           Associate Professor, Computer Engineering, Bilkent University, 2011- .

Associate Professor, Computer Science and Engineering, Ohio State University (OSU), 2007-2011.

Participating Faculty, Biomedical Informatics, Bioinformatics Program at Medical School, and Mathematical Biosciences Institute, OSU.

Assistant Professor, Computer Science and Engineering, OSU, 2001

Researcher, AT&T Labs- Research, Florham Park, New Jersey, Summer 1999.

Graduate Research/Teaching Associate, Computer Science, University of California, Santa Barbara, 1997-2001.

EDUCATION:

Ph.D. Computer Science, University of California, Santa Barbara. 2001.

Dissertation: Efficient Retrieval and Scalable Storage of Multi-dimensional Data.

Co-advisors: Divyakant Agrawal and Amr El Abbadi.

B.S. Computer Science, Bilkent University, Ankara, Turkey. 1997.

Full scholarship for undergraduate education.

HONORS AND AWARDS:

. Early Career Principal Investigator Award, US Department of Energy, 2003.

. Large Interdisciplinary Grant Award, Office of Research, OSU, 2004.

. NSF CAREER Award, 2006.

. Lumley Research Accomplishment Award, OSU College of Engineering, 2007.

. IBM Faculty Award, 2010.

. TUBA GEBIP, Turkish Academy of Sciences, Young Scientist, 2012.

RESEARCH FUNDING:

. NSF Collaborative Systems, NSF Advances in Biological Informatics, NSF Cyber-infrastructure, US Department of Energy, Ohio Aerospace Institute, NSF Research Infrastructure, Ohio Board of Regents, IBM, Pfizer, Inc., TUBITAK.

PUBLICATIONS:

1. Diversity based Relevance Feedback for Time Series Search, B. Eravci and H. Ferhatosmanoglu, VLDB 2014.

2. Aggregate Profile Clustering for Telco Analytics, M. Abbasoglu, B. Gedik, H. Ferhatosmanoglu, VLDB 2013 (demo).

3. λ-Diverse Nearest Neighbors Browsing for Multi-dimensional Data, IEEE Transactions of Knowledge and Data Engineering (TKDE), O. Kucuktunc, H. Ferhatosmanoglu, March 2013, pp. 481-493.

4. A large-scale sentiment analysis for Yahoo! answers. Onur Kucuktunc, Berkant Barla Cambazoglu, Ingmar Weber, Hakan Ferhatosmanoglu, WSDM 2012: 633-642. (Acceptance: 20.7%)

5. 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 (TCBB), vol. 9, no.1, Jan 2012, pp. 249-261.

6. Lineking: Crowdsourced line wait-time estimation using smartphones, M. Bulut, Y. Yilmaz, M. Demirbas, H. Ferhatosmanoglu, N. Ferhatosmanoglu, Mobile Computing, Applications and Services, MobiCase 2012.

7. Crowd-sourced Sensing and Collaboration Using Twitter. M. Demirbas, C. Akcora, M. Bayir, Y. Yilmaz, H. Ferhatosmanoglu. Proceedings of IEEE WoWMoM, 2010, Montreal, Canada.

8. Identifying Breakpoints in Public Opinion. C. Akcora, M. Bayir, M. Demirbas, H. Ferhaosmanoglu. Social Media Analytics, KDD Workshop Proceedings, June 2010 (20.7%)

9. Short Text Classification in Twitter to Improve Information Filtering. E. Demir, D. Fuhry, B. Sriram, H. Ferhatosmanoglu, M. Demirbas. Proceedings of the ACM SIGIR 2010, Geneva, Switzerland, July 2010, 841-842.

10. Relationship Preserving Feature Selection for Unlabelled Clinical Trials Time-Series, F. Altiparmak, M. Gibas, H. Ferhatosmanoglu. Proceedings of 1^st ACM International Conference on Bioinformatics and Computational Biology, August 2010, New York.

11. 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.

12. Secondary Bitmap Indexes with Vertical and Horizontal Partitioning . G. Canahuate, T. Apaydin, A. Sacan, H. Ferhatosmanoglu. EDBT, March 2009, pp 600-611.

13. Integrated Search and Alignment of Protein Structures. A. Sacan, I. Toroslu, H. Ferhatosmanoglu. Bioinformatics, vol. 24, no. 14, December 2008, pp. 2872-9.

14. 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.

15. 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, Vol. 9 : 344, August 2008. (Impact factor: 3.78) doi:10.1186/1471-2105-9-344.

16. Incremental Maintenance of Online Summaries Over Multiple Streams. F. Altiparmak, E. Tuncel, H. Ferhatosmanoglu. IEEE Transactions on Knowledge and Data Engineering (TKDE), Volume 20, Issue 2, Feb. 2008, pp. 216-229.

17. Online Index Recommendations for High-Dimensional Databases using Query Workloads. M. Gibas, G. Canahuate, H. Ferhatosmanoglu. IEEE Transactions on Knowledge and Data Engineering (TKDE), Volume 20, Issue 2, Feb. 2008, pp. 246-260.

18. Distance-based indexing of residue contacts for protein structure retrieval and alignment. Sacan, A.; Toroslu, I.H.; Ferhatosmanoglu, H.; BioInformatics and BioEngineering, BIBE, 8th IEEE International Conference, Oct. 2008, pp. 1 – 7.

19. Dynamic Data Organization for Bitmap Indices. T. Apaydin, G. Canahuate, H. Ferhatosmanoglu, A. Tosun, 3^rd International ICST Conference on Scalable Information Systems, InfoScale, June 2008.

20. Analysis of Basic Data Reordering Techniques. T. Apaydin, A. Tosun, H. Ferhatosmanoglu, 20^th Conference on Scientific and Statistical Data Management, SSDBM, July 2008, pp. 517-524.

21. Automated Data Discovery in Similarity Score Queries. Altiparmak F., Tosun A. S., Ferhatosmanoglu H., Sacan A., 13th International Conference on Database Systems for Advance Applications (DASFAA), New Delhi, India, March 2008, pp. 440-451.

22. A General Framework for Modeling and Processing Optimization Queries. M. Gibas, N. Zheng, H. Ferhatosmanoglu, VLDB 07, Vienna, Austria, September, 2007, pp. 1069-1080.

23. LFM-Pro: A Tool for Detecting Significant Local Structural Sites in Proteins. A. Sacan, O. Ozturk, H. Ferhatosmanoglu, Y. Wang. Bioinformatics, Volume 23, Number 6, pp. 709-716, March 2007.

24. Enhanced Partial Order Curve Comparison over Multiple Protein Folding Trajectories. H. Sun, H. Ferhatosmanoglu, M. Ota, Y. Wang, Life Sciences Society Computational Systems Biology (CSB 07), San Diego, CA, August 2007, pp. 299-310.

25. Data Space Mapping for Efficient I/O in Large Multi-dimensional Databases. H. Ferhatosmanoglu, A. Ramachandran, D. Agrawal, A. El Abbadi. Information Systems Journal, vol. 32, no. 1, pp. 83-103, March 2007.

26. Access Structures for Angular Similarity Queries. T. Apaydin and H. Ferhatosmanoglu. IEEE Transactions on Knowledge and Data Engineering (TKDE), vol. 16, no. 6, pp. 1512-1525, November 2006.

27. 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.

28. High Dimensional Nearest Neighbor Searching. H. Ferhatosmanoglu, E. Tuncel, D. Agrawal, A. El Abbadi. Information Systems Journal, vol. 31, no. 6, pp. 512-540, September 2006.

29. 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).

30. 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.

31. Online Summarization of Dynamic Time Series Data. U. Ogras and H. Ferhatosmanoglu. VLDB Journal, 15(1): 84-98, January 2006.

32. 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.

33. Vector Space Indexing for Biosequence Similarity Searches. O. Ozturk and H. Ferhatosmanoglu. International Journal on Artificial Intelligence Tools, 14(5): 811-826 (2005).

34. 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 (DAPD), 17(1): 75-101 (2005).

35. Replicated Declustering of Spatial Data. H. Ferhatosmanoglu, A. Tosun, A. Ramachandran. 23^rd ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems (PODS 04), June 2004, Paris, France, pp. 125-135.

36. Dimensionality Reduction and Similarity Computation using Inner Product Approximations. O. Egecioglu, H. Ferhatosmanoglu, U. Ogras. IEEE Transactions on Knowledge and Data Engineering (TKDE). June 2004 (vol. 16, no.6), pp. 714-726.

37. 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), Taiwan, March 2004, pp. 366-378.

38. 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.

39. 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.

40. Peer-to-Peer Spatial Queries in Sensor Networks. M. Demirbas and H. Ferhatosmanoglu. 3rd IEEE International Conference on Peer-to-Peer Computing (P2P '03), Linking, Sweden. September 2003, pp. 32-39.

41. Efficient k-NN Search on Streaming Data Series. X. Liu and H. Ferhatosmanoglu. 8th International Symposium on Spatial and Temporal Databases (SSTD '03), Santorini, Greece. July 2003, pp. 83-101.

42. 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). Stanford, CA. August 2003, pp. 553-558.

43. VQ-Index: An Index Structure for Similarity Searching in Multimedia Databases. E. Tuncel, H. Ferhatosmanoglu, K. Rose. ACM Multimedia, Juan Les Pins, France, pp. 543-552. December 2002.

44. Vulnerabilities in Similarity Search based Systems. A. Tosun and H. Ferhatosmanoglu. ACM International Conference on Information and Knowledge Management (CIKM 02), Mc Lean, VA, pp. 110-117. November 2002.

45. Optimal Parallel I/O Using Replication. A. Tosun, H. Ferhatosmanoglu. In proceedings of International Workshops on Parallel Processing (ICPPW 02), Vancouver, Canada, pp. 506-513. August 2002.

46. Approximate Nearest Neighbor Searching in Multimedia Databases. H. Ferhatosmanoglu, E. Tuncel, D. Agrawal, A. El Abbadi.  In proceedings of the 17^th IEEE International Conference on Data Engineering (ICDE 01), Heidelberg, Germany. April 2001.

47. Efficient Processing of Conical Queries. H. Ferhatosmanoglu, D. Agrawal and A. El Abbadi. In proceedings of the 10^th ACM International Conference on Information and Knowledge Management (CIKM 01), Atlanta, pp. 1-8. November 2001.

48. Constrained Nearest Neighbor Queries. H. Ferhatosmanoglu, I. Stanoi, D. Agrawal, A. El Abbadi. 7^th International Symposium on Spatial and Temporal Database (SSTD 01), Los Angeles, CA, pp. 257-276. July 2001.

49. Vector Approximation based Indexing for Non-uniform High Dimensional Data Sets. H. Ferhatosmanoglu, E. Tuncel, D. Agrawal, A. El Abbadi. In proceedings of the 9^th ACM International Conference on Information and Knowledge Management (CIKM 00), Washington, DC, pp. 202-209. November 2000.

50. Dimensionality Reduction and Similarity Computation by Inner Product Approximations. O. Egecioglu and H. Ferhatosmanoglu.  In proceedings of the 9^th ACM International Conference on Information and Knowledge Management (CIKM 00), Washington, DC, pp. 219-226.  November 2000.

51. Clustering Declustered Data for Efficient Retrieval. H. Ferhatosmanoglu, D. Agrawal, A. El Abbadi. In proceedings of the 8^th ACM International Conference on Information and Knowledge Management (CIKM 99), Kansas City, Missouri, pp. 343-350. November 1999.

52. Concentric Hyperspaces and Disk Allocation for Fast Parallel Range Searching. H. Ferhatosmanoglu, D. Agrawal, A. El Abbadi. In proceedings of the 15^th IEEE International Conference on Data Engineering (ICDE 99), Sydney, Australia, pp. 608-615. March 1999.

Others

53. Bitmap-based Index Structures. G. Canahuate, H. Ferhatosmanoglu. Encyclopedia of Database Systems 2009: 248-251.

54. Michael Gibas, Hakan Ferhatosmanoglu: Indexing, High Dimensional. Encyclopedia of GIS, pp. 502-507, February 2008.

55. Investigating the use of Extrinsic Similarity Measures for Microarray Analysis. D. Ucar, F. Altiparmak, H. Ferhatosmanoglu, S. Parthasarathy. Proceedings of the BIOKDD workshop at the ACM International Conference on Knowledge Discovery and Data Mining (SIGKDD), 2007.

PROFESSIONAL SERVICES:

Program Committee Member

• VLDB 2014, 40^th International Conference on Very Large Databases, September 2014, Hangzhou, China.
• VLDB 2013, 39^th International Conference on Very Large Databases, September 2013, Trento, Italy.
• VLDB 2012, 38^th International Conference on Very Large Databases, September 2012, İstanbul (also workshops co-chair).
• SIGMOD 2011 (Demo), 22^nd ACM SIGMOD International Conference on Management of Data, June 2011.
• ICDE 2011, 27^th IEEE International Conference on Data Engineering, April 2011.
• ICDM 2011, 10^th IEEE International Conference on Data Mining, Vancouver, Canada, 2011.
• SIGMOD 2010, 21^st ACM SIGMOD International Conference on Management of Data, June 2010 (also registration co-chair).
• ICDM 2010, 10^th IEEE International Conference on Data Mining, Sydney, Australia, 2010.
• SIGSPATIAL 2010, 18^th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS), San Jose, CA, 2010.
• SIGHINF 2010, 1^st ACM International Health Informatics Symposium, Washington, DC, 2010.
• ISCIS 2009, Track Program Chair, Bioinformatics and Bioengineering, 24^th International Symp. On Computer and Information Sciences, 2009.
• SSDBM 2009, 21^st International Conference on Scientific and Statistical Database Management, June 2009.
• ICDE 2009, 25^th International Conference on Data Engineering, Shanghai, China, March 2009.
• SSTD 2009, 21^st International Symp. on Spatial and Temporal Databases, Aalborg, Denmark, July 2009.
• ICDM 2008, IEEE International Conference on Data Mining, Pisa, Italy, December 2008.
• SAC 2008, 23^rd Annual ACM Symposium on Applied Computing, Mobile Computing and Applications, Brazil, March 2008.
• IEEE CSE 2008, 9^th IEEE International Conference on Computational Science and Engineering, Brazil, June 2008
• DASFAA 2008. 13^th International Conference on Database Systems for Advanced Applications, Delhi, India, March, 2008.
• KDD 2007. 13^th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, San Jose, August, 2007.
• ICDE 2007. 23^rd IEEE International Conference on Data Engineering, Istanbul, Turkey, April 2007.
• DASFAA 2007. 12^th International Conference on Database Systems for Advanced Applications, Bangkok , Thailand, April 2007.
• KDD 2006. 12^th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, Philadelphia, August 2006.
• IEEE WirelessCom 2006, Mobile Computing Symposium, Toronto, Canada, June 2006.
• MDM 2006. Workshop on Mobile Location-Aware Sensor Networks, Nara, Japan, May 2006.
• DASFAA 2006. 11^th International Conference on Database Systems for Advanced Applications, Singapore, April 2006.
• IEEE BIBE 2005. 5^th IEEE Symposium on Bioinformatics and Bioengineering, Minneapolis, Minnesota, October 2005.
• SAC 2006. 20^th ACM Symposium on Applied Computing, Mobile Computing and Applications, Dijon, France, March 2006.
• CISSE 2005. International Joint Conferences on Computer, Information, and Systems Sciences, and Engineering, December 2005.
• IEEE BIBE 2005. 5^th IEEE Symposium on Bioinformatics and Bioengineering, Minneapolis, Minnesota, October 2005.
• BIOKDD 2005. 5^th International Workshop on Data Mining in Bioinformatics (BIOKDD), Chicago, IL, August 2005.
• SAC 2005. 20^th ACM Symposium on Applied Computing, Mobile Computing and Applications, Santa Fe, New Mexico, March 2005.
• IEEE WirelessCom 2005. Symposium on Mobile Computing. Maui, Hawaii, June 2005.
• ICDE 2004. 20^th IEEE International Conference on Data Engineering, Boston, Mass., USA, March 2004.
• BIBE 2004. IEEE International Symposium on Bioinformatics and Bioengineering, Taiwan, Taichung, Taiwan, ROC, May 2004.
• ACM SAC 2004. ACM Symposium on Applied Computing, special track on Mobile Computing and Applications (SAC-MCA), Nicosia, Cyprus, March 2004.
• IEEE ICDE 2003. 19^th IEEE International Conference on Data Engineering, Bangalore, India, March 2003.
• ACM SAC 2003. ACM Symposium on Applied Computing, special track on Mobile Computing and Applications (SAC-MCA), Melbourne, Florida, March 2003.
• IEEE BIBE 2003. IEEE International Symposium on Bioinformatics and Bioengineering, Washington, DC, March 2003.
• ACM CIKM 2002. Conference on Information and Knowledge Management, McLean, VA, November 2002 (Also in organization committee).

Panelist and Reviewer for Proposals

NSF: Information & Intelligent Systems (IIS), Information Integration and Informatics, Division of Biological Infrastructure; Canada National Research Council; TUBITAK.

Editorial Board

. Distributed and Parallel Databases Journal

Reviewer for Journals and Conferences

. Bioinformatics

. IEEE Transactions on Knowledge and Data Engineering (TKDE)

. Very Large Databases Journal (VLDB Journal)

. ACM Transactions on Database Systems (TODS)

. IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)

. IEEE Transactions on Information Technology in Biomedicine

. Parallel and Distributed System

. International Journal on Information Processing Letters (IPL)

. Information Sciences

. Data and Knowledge Engineering

. The Computer Journal

Reviewer for Books

. Fundamentals of Database Systems, by Elmasri & Navathe, Addison Wesley.

. An Information Systems Project Guide (working title), Prentice Hall.

Departmental Service

. Recruitment Coordinator

. Advisory Committee

. Colloquium Coordinator

. Semester Conversion Committee

. Faculty Search, Graduate Studies, and Computer Systems