A Vision of Cyberinfrastructure for End-to-End Environmental Explorations (C4E4),
R. S. Govindaraju, B. A. Engel, D. Ebert, B. Fossum, M. Huber, C. Jafvert, S. Kumar, V. Merwade, D. Niyogi, L. Oliver, S. Prabhakar, G. Rochon, C. Song, L. Zhao
ASCE Journal of Hydrologic Engineering Accepted to appear.

Interactive Analysis of Omics Molecular Expression Data,
Mingwu Zhang, Qi Ouyang, Alan Stephenson, Michael D Kane, David E Salt, Sunil Prabhakar, Charles Buck, Xiang Zhang
BioMed Central (BMC) System Biology Accepted to appear.

Indexing Continuously Changing Data with Mean-Variance Tree,
Yuni Xia, Sunil Prabhakar, Reynold Cheng, Rahul Shah
International Journal of High-Performance Computing and Networking Accepted to appear.

Multi-Quality Data Replication in Multimedia Databases,
Yicheng Tu, Jingfeng Yan, G. Shen, Sunil Prabhakar
IEEE Transactions on Knowledge and Data Engineering (TKDE) 19(5): 679-694, May 2007.

Efficient Query Execution on Broadcasted Index Tree Structures,
S. Hambrusch, C.-M. Liu, W. Aref, S. Prabhakar
Data and Knowledge Engineering (DKE) 60(3): 511-529 (2007).

An Efficient Location Update Mechanism for Continuous Queries over Moving Objects,
R. Cheng, K.-Y. Lam, S. Prabhakar, B.-Y. Liang
Information Systems: An International Journal 32(4): 593-620 (2007)

Rights Protection for Discrete Numeric Streams,
R. Sion, M. J. Atallah, S. Prabhakar
IEEE Transactions on Knowledge and Data Engineering (TKDE) 18(5):699-714, May 2006 [PDF]

Evaluation of Probabilistic Queries Over Imprecise Data in Constantly-Evolving Environments,
R. Cheng, D. V. Kalashnikov, S. Prabhakar
Information Systems: An International Journal 32(1):104-130, March 2007 [PDF]

Broadcasting and Querying Multi-Dimensional Index Trees in a Multi-Channel Environment,
S. Hambrusch, C.-M. Liu, S. Prabhakar
Information Systems: An International Journal 31(8): 870-886 (2006) .

Fast similarity join for multi-dimensional data ,
D. V. Kalashnikov, S. Prabhakar
Information Systems: An International Journal 32(1): 160-177, (2007) [PDF]

Supporting Effective and Efficient Three-Dimensional Shape Retrieval,
K. Lou, N. Iyer, S. Jayanti, Y. Kalyanaraman, S. Prabhakar, and K. Ramani
Journal of Engineering Design 16(2): 175-194, April 2005

The Indiana Center for Database Systems at Purdue University. ,
Mourad Ouzzani, Walid G. Aref, Elisa Bertino, Ann Christine Catlin, Christopher W. Clifton, Wing-Kai Hon, Ahmed K. Elmagarmid, Arif Ghafoor, Susanne E. Hambrusch, Sunil Prabhakar, Jeffrey Scott Vitter, Xiang Zhang
SIGMOD Record 34(2): 53-58 (2005)

An Analytical Study of Peer-to-Peer Media Streaming Systems,
Yi-Cheng Tu, Jianzhong Sun, Mohamed Hefeeda, S. Prabhakar
ACM Transactions on Multimedia Computing, Communications, and Applications (ACM TOMCCAP) Vol. 1 No. 4 pp. 354-376., November 2005 [PDF]

Rights Protection for Categorical Data ,
R. Sion, M. J. Atallah, S. Prabhakar
IEEE Transactions on Knowledge and Data Engineering (TKDE) Volume 17, No. 7, pp. 912-926, July 2005 [PDF]

Rights Protection for Relational Data through Watermarking,
R. Sion, M. J. Atallah, S. Prabhakar
IEEE Transactions on Knowledge and Data Engineering (TKDE) Volume 16, No. 12, December 2004 [PDF]

Querying Imprecise Data in Moving Object Environments,
R. Cheng,   D. V. Kalashnikov,  S. Prabhakar
IEEE Transactions on Knowledge and Data Engineering (TKDE),  Volume 16, No. 9, pp. 1112-1127,  September 2004 [PDF]

Digital Rights Protection,
    M. J. Atallah,  Sunil Prabhakar, K. Frikken, Radu Sion   
Invited Paper, IEEE Data Engineering Bulletin, Vol. 27, No. 1, pp. 19-25  March 2004. [PDF]

Main Memory Evaluation of Monitoring Queries Over Moving Objects
D. V. Kalashnikov,  S. Prabhakar,   S. E. Hambrusch,
 Distributed and Parallel Databases: An International Journal  Volume 15, Number 2,  pp. 117-136, March 2004 [PDF]

VDBMS: A Testbed Facility for Research in Video Database Benchmarking
W. Aref,  A. Catlin,  A. Elmagarmid,  J. Fan,  M. Hammad,  I. Ilyas,  M. Marzouk,  S. Prabhakar,   Y. Tu,  X. Zhu,
ACM/Springer Multimedia Systems Journal Vol. 9, No. 6, pp. 575-585, 2004

Managing Uncertainty in Sensor Databases,
R. Cheng and S. Prabhakar
SIGMOD Record, Volume 32, No. 4, December 2003 pp. 41-46.

(Almost) Optimal Parallel Block Access for Range Queries
M. J. Atallah,   S. Prabhakar
Information Sciences: An International Journal,  Volume 157,  21-31, December 2003.  [PDF]

Disk Allocation for Fast Range and Nearest-Neighbor Queries
S. Prabhakar,  D. Agrawal,  A. El Abbadi
Distributed and Parallel Databases: An International Journal, 14(2) 1-36, September 2003. [PDF]

Optimal Scheduling Algorithms for Tertiary Storage
S. Prabhakar,   D. Agrawal,  A. El Abbadi
Distributed and Parallel Databases: An International Journal, 14(3) 1-34, November 2003. [PDF]

Browsing and Placement of Multi-Resolution Images on Parallel Disks
S. Prabhakar,  D. Agrawal,  A. El Abbadi,  A. Singh,  T. Smith,
ACM/Springer Multimedia Systems Journal,  8(6) 459-469, April 2003  [PDF]

Minimizing Latency and Jitter for Large Scale Multimedia Repositories
S. Prabhakar,   R. Chari
International Journal of Image and Graphics (IJIG), 3(1)  95-118, Jauary 2003 [PDF]

Query Indexing and Velocity Constrained Indexing: Scalable Techniques for Continuous Queries on Moving Objects
S. Prabhakar,   Y. Xia,   D. V. Kalashnikov,   W. Aref,   S. E. Hambrusch,
  IEEE Transactions on Computers, 51(10)  1124-1140, October 2002  [PDF]

Scalable Access Within the Context of Digital Libraries
X. Cheng, Ron Dolin, M. Neary, Sunil Prabhakar, Kothuri Venkata Ravi Kanth, Daniel Wu, Divyakant Agrawal, Amr El Abbadi, Michael Freeston,  Ambuj Singh,  Terence Smith, Jianwen Su:  International Journal on Digital Libraries  1(4): 358-376 (1997)

Ensuring Correctness over Untrusted Private Databases,
    Sarvjeet Singh  Sunil Prabhakar  Proc. of the 11th International Conference on Extending Database Technology (EDBT), Nantes, France, March 2008. [PDF]

Database Support for Probabilistic Attributes and Tuples
    Sarvjeet Singh  Chris Mayfield  Rahul Shah  Sunil Prabhakar  Susanne Hambrusch  Jennifer Neville  Reynold Cheng  Proc. of the IEEE International Conference on Data Engineering (ICDE), Cancun, Mexico, April 2008.

Tracing Lineage Beyond Relational Operators,
    Mingwu Zhang  Xiangyu Zhang  Xiang Zhang   Sunil Prabhakar,   Proc. of the 33rd International Conference on Very Large Databases (VLDB), Vienna, Austria, September 2007.

Identifying Rare Classes with Sparse Training Data,
    Mingwu Zhang  Wei Jiang  Chris Clifton   Sunil Prabhakar,   Proc. of the 18th International Conference on Databases and Expert Systems (DEXA), Regensburg, Germany, September 2007.

Tracing Lineage in Multi-Version Scientific Databases,
    Mingwu Zhang  Daisuke Kihara  Sunil Prabhakar,   Proc. of the IEEE 7th International Symposium on BioInformatics and BioEngineering (BIBE), October 2007.

Efficient Data Compression in Location Based Services,
    Yuni Xia  Yicheng Tu  Mikhail Atallah  Sunil Prabhakar,   Proc. of the 2nd International Conference on GeoSensor Networks, Boston, MA, USA, December 2006.

(Demo) Using Control Theory for Load Shedding in Data Stream Management,
    Yicheng Tu  S. Liu  Sunil Prabhakar,   B. Yao  W. Schroeder  Proc. of the 23rd IEEE International Conference on Data Engineering (ICDE 2007), Istanbul, Turkey, April 2007.

Indexing Uncertain Categorical Data,
    Sarvjeet Singh  Chris Mayfield  Sunil Prabhakar,   Rahul Shah,   Susanne Hambrusch   Proc. of the 23rd IEEE International Conference on Data Engineering (ICDE 2007), Istanbul, Turkey, April 2007 [PDF]

Efficient Join Processing over Uncertain Data,
    Reynold Cheng, Sarvjeet Singh  Sunil Prabhakar,   Rahul Shah,   Jeffrey Vitter,   Yuni Xia  Proc. of the 15th ACM International Conference on Information and Knowledge Management (CIKM), November 2006, Arlington, Virginia, USA

Load Shedding in Stream Databases: A Control-Based Approach,
    Yicheng Tu   Song Liu,   Sunil Prabhakar,   Bin Yao,  
Proc. of the International Conference on Very Large Databases (VLDB), September 2006, Seoul, Korea.

Preserving User Location Privacy in Mobile Data Management Infrastructures,
    Reynold Cheng,  Yu Zhang,   Elisa Bertino,   Sunil Prabhakar  
Proc. of the 6th Workshop on Privacy Enhancing Technologies, June 2006, Cambridge, United Kingdom.

Indexing Multi-Dimensional Uncertain Data with Arbitrary Probability Density,
    Yufei Tao,   Reynold Cheng  Xiaokui Xiao,   Wang Kay Ngai,   Ben Kao,   Sunil Prabhakar  
Proc. of  the International Conference on Very Large Databases (VLDB), September 2005, Trondheim, Norway. pp. 922-933

Adaptive Stream Filters for Entity-based Queries with Non-Value Tolerance,
    Reynold Cheng  Ben Kao,   Sunil Prabhakar   Alan Kwan,   Yicheng Tu
Proc. of  the International Conference on Very Large Databases (VLDB), September 2005, Trondheim, Norway. pp. 37-48

U-DBMS: A Database System for Managing Constantly-Evolving Data (Demonstration),
    Reynold Cheng  Sarvjeet Singh  Sunil Prabhakar  
Proc. of  the International Conference on Very Large Databases (VLDB), September 2005, Trondheim, Norway. 1271-1274

Control-based Quality Adaptation in Data Stream Management Systems,
    Yicheng Tu  Mohammed Hefeeda   Yuni Xia  Sunil Prabhakar  
To appear in the Proc. of  the International Conference and Workshop on Database and Expert Systems Applications (DEXA), August 2005, Copenhagen, Denmark.

Quality-aware Replication of Multimedia Data,
    Yicheng Tu  Jingfeng Yan   Sunil Prabhakar  
To appear in the Proc. of  the International Conference and Workshop on Database and Expert Systems Applications (DEXA), August 2005, Copenhagen, Denmark.

Indexing and Querying Constantly Evolving Data Using Time Series Analysis
Yuni Xia,   Sunil Prabhakar  Jianzhong Sun, Shan Lei
In Proc. of  the 10th International Conference on Database Systems for Advanced Applications (DASFAA 2005), April 2005, Beijing, China. pp. 637-648

Indexing Constantly Changing Data with mean-variance tree
Yuni Xia,   Sunil Prabhakar Shan Lei
In Proc. of  the ACM Symposium on Applied Computing (ACM SAC), Mobile Computing and Applications Track, March 2005, Santa Fe, New Mexico. pp. 1125-1132

Change-Tolerant Indexing for Constantly Evolving Data,
    Reynold Cheng  Yuni Xia,   Sunil Prabhakar   Rahul Shah
In the Proc. of  the International Conference on Data Engineering (ICDE), April 2005, Tokyo, Japan. pp. 391-402 [PDF]

Using Uncertainty to Provide Privacy-Preserving and High-Quality Location-Based Services,
  Reynold Cheng  and Sunil Prabhakar 
In Proc. of  the Mobile HCI Workshop on Location Systems Privacy and Control, Glasgow, Scotland September 2004. [PDF]

Efficient Indexing Methods for Probabilistic Threshold Queries over Uncertain Data,
  Reynold Cheng  Yuni Xia,   Sunil Prabhakar   Rahul Shah   Jeffrey S. Vitter
In Proc. of  the International Conference on Very Large Databases (VLDB), pp. 876-887,  August 2004[PDF].

Resilient Rights Protection for Sensor Streams,
  Radu Sion    M. J. Atallah   Sunil Prabhakar  
In Proc. of  the International Conference on Very Large Databases (VLDB), pp. 732-743,  August 2004. [PDF]

PLACE: A Query Processor for Handling Real-time Spatio-temporal Data Streams (Demonstration).
Mohamed F. Mokbel, Xiaopeng Xiong, Walid G. Aref, Susanne E. Hambrusch, Sunil Prabhakar, Moustafa A. Hammad
Proc. of  the International Conference on Very Large Databases (VLDB),  pp. 1377-1380, August 2004.

Scalable Spatio-temporal Continuous Query Processing for Location-aware Services,
X. Xiong, M. Mokbel, W. Aref, S. Hambrusch, S. Prabhakar
In Proc. of the International Conference on Scientific and Statistical Database Management (SSDBM), June 2004, Santorini, Greece. [PDF]

QuaSAQ: An Approach to Enabling End-to-End QoS for Multimedia Databases,
Y. Tu,  S. Prabhakar, A. K. Elmagarmid, and R. Sion
In  Proc. of  the International Conference on Extending Database Technology (EDBT) March 2004. [PDF]

Content-Based Three-Dimensional Engineering Shape Search K. Lou,  S. Prabhakar, and K. Ramani
In Proc. of  the International Conference on Data Engineering (ICDE), pp, 754-765, March 2004.

Resilient Information Hiding for Abstract Semi-Structures,
  Radu Sion    M. J. Atallah   Sunil Prabhakar  
In Proc. of  the International Workshop on Digital Watermarking (IWDW) October 2004, pp 141-153. [PDF]

wmdb.: Rights Protection for Numeric Relational Data (Demonstration),
Radu Sion, Mikhail J. Atallah, Sunil Prabhakar,
Proc. of  the International Conference on Data Engineering (ICDE), pp.  863,  March 2004.

Performance Analysis of a Hybrid Media Streaming System,
Y. Tu,  J. Sun, and  S. Prabhakar
In Proc. of  the ACM/SPIE Conference on Multimedia Computing and Networking (MMCN), pp. 69-82, San Jose, California, January 2004.

Towards Scalable Location-Aware Services: Requirements and Research Issues,
M. Mokbel,  W. Aref,  S. E. Hambrusch,  S. Prabhakar
Proc. of the ACM Symposium on Geographic Information Systems (ACM GIS), pp. 110-117, November 2003. [PDF]

VDBMS: A Testbed Facility for Research in Video Database Benchmarking
W. Aref,  A. Catlin,  A. Elmagarmid,  J. Fan,  M. Hammad,  I. Ilyas,  M. Marzouk,  S. Prabhakar,   Y. Tu,  X. Zhu,
In Proc. of the 9th International Conference on Distributed Multimedia Systems (DMS), September 2003, Miami, Florida.

On-the-fly Intrusion Detection for Web Portals
 Radu Sion    M. J. Atallah   Sunil Prabhakar  
In proceedings of the IEEE International Conference on Information Technology: Coding and Computation, Las Vegas, Nevada, April 2003. [PDF]

A Reconfigurable 3D Engineering Shape Search System Part II: Database Indexing, Retrieval, and Clustering
   K. Lou,  S. Jayanti,  N. Iyer,  Y. Kalyanaraman,  Sunil Prabhakar,   K. Ramani
   In Proc. of the ASME DETC 03, 23rd Computers and Information in Engineering (CIE) Conference, September 2003.

Efficient Moving Object Indexing in Location-aware Services
 Yuni Xia,   Sunil Prabhakar
In Proceedings of the  2003 International Workshop on Mobile Distributed Computing (MDC'03), 414-419, Providence, Rhode Island, March 2003. [PDF]

Evaluating Probabilistic Queries over Imprecise Data
   Reynold Cheng  D. Kalashnikov  Sunil Prabhakar  
In proceedings of the ACM International Conference on Management of Data SIGMOD 2003, 551-562, Sand Diego, California, June 2003 [PDF].  

Rights Protection for Relational Data
 Radu Sion   M. J. Atallah  Sunil Prabhakar  
   In proceedings of the ACM International Conference on Management of Data SIGMOD 2003, 98-109, Sand Diego, California, June 2003 [PDF]. 

Efficient Indexing for Moving Object Databases
    Yuni Xia,  Sunil Prabhakar
In Proceedings of the 8th International Conference on Database Systems for Advanced Applications (DASFAA) 2003, pages 175-182, Kyoto, Japan, March 2003. [PDF]

Similarity Join for  Low- and High-Dimensional Data
  D. V. Kalashnikov,  Sunil Prabhakar
In Proceedings of the 8th International Conference on Database Systems for Advanced Applications (DASFAA) 2003,  pages 7-16, Kyoto, Japan, March 2003. [PDF]

Querying Imprecise Data in Moving Object Environments
   Reynold Cheng  Sunil Prabhakar  D. Kalashnikov  
   In Proceedings of the IEEE International Conference on Data Engineering (ICDE) March 2003. [PDF]

On Watermarking Numeric Sets
  Radu Sion   M. J. Atallah  Sunil Prabhakar  
   In Proceedings of the International Workshop on Digital Watermarking (IWDW) 2002.  pages 130-146, Seoul, Korea, November 2002. [PDF]

Optimal Parallel I/O for Range Queries through Replication 
K. Frikken , M. J. Atallah , Sunil Prabhakar ,  R. Safavi-Naini
In Proceedings of the 13^th International Conference on Database and Expert Systems Applications - DEXA 2002, Aix-en-Provence, France, pages 669-678. [PDF]

(Almost) Optimal Parallel Block Access for Range Queries
Mikhail J. Atallah   and Sunil Prabhakar
In Proc. of the Nineteenth ACM Symposium on Principles of Database Systems, PODS 2000,
 Dallas, Texas,  15-17 May 2000.  [Postscript] [PDF]

Tape Group Parity Protection
Theodore Johnson and Sunil Prabhakar
In Proc. of the 16th IEEE Mass Storage Systems Symposium MSS'99 ,
 San Diego, California, USA,  15-18 March 1999. [Postscript] [PDF]

Efficient Retrieval of Multidimensional Datasets Through Parallel I/O
Sunil Prabhakar , Khaled Abdel-Ghaffar , Divyakant Agrawal and Amr El Abbadi
In Proc. of the 5th International Conference on High Performance Computing, HiPC'98 ,
Chennai (Madras), India, 17-20 December 1998. [Postscript] [PDF]

Data Declustering for Efficient Range and Similarity Searching
Sunil Prabhakar , Divyakant Agrawal and Amr El Abbadi
In Proc. of the SPIE Symposium on Voice, Video, and Data Communication, Multimedia Storage and Archiving Systems III,
Boston, Massachusetts, 2-5 November 1998.  [Postscript] [PDF]

Efficient Disk Allocation for Fast Similarity Searching
Sunil Prabhakar , Divyakant Agrawal and Amr El Abbadi
In Proc. of the 10th Annual ACM Symposium on Parallel Algorithms and Architectures SPAA 98 ,
Puerto Vallarta, Mexico, June 28 - July 2 1998, pages 78-87. [Postscript] [PDF]

Cyclic Allocation of Two-Dimensional Data
Sunil Prabhakar , Khaled Abdel-Ghaffar , Divyakant Agrawal and Amr El Abbadi
In Proc. of the 14th International Conference on Data Engineering, ICDE 98 ,
Orlando Florida, Feb 23-27 1998, pages 94-101. [Postscript.] [PDF]

Browsing and Placement of Multiresolution Images on Parallel Disks
Sunil Prabhakar , Divyakant Agrawal , Amr El Abbadi , Ambuj Singh and Terence Smith
In Proc. of the 5th Annual Workshop on I/O in Parallel and Distributed Systems, IOPADS 97 ,
San Jose, CA, Nov 17 1997, pages 102-113. [Postscript.] [PDF]

Scheduling Tertiary I/O in Database Applications
Sunil Prabhakar , Divyakant Agrawal , Amr El Abbadi and Ambuj Singh
In Proc. of the 8th International Workshop on Database and Expert Systems Applications, DEXA 97 ,
Toulouse, France, Sept 1-5 1997, pages 722-727. [Postscript.] [PDF]

Browsing and Placement of Images on Secondary Storage
Sunil Prabhakar , Divyakant Agrawal , Amr El Abbadi , Ambuj Singh and Terence Smith
In Proc. of the IEEE International Conference of Multimedia Computing and Systems, IEEE ICMCS'97 ,
Ottawa, Canada, June 1997, pages 636-7. [Postscript] [PDF]
 

A Brief Survey of Tertiary Storage Sytems and Research
Sunil Prabhakar , Divyakant Agrawal , Amr El Abbadi and Ambuj Singh
In Proceedings of the 1997 ACM Symposium on Applied Computing, ACM SAC 97, Feb 28 - Mar 2, 1997,
San Jose, CA, pages 155-157. [Postscript] [PDF]