Joseph JaJa

Professor Emeritus

3214 Iribe Center

(301) 405-6722

Academic Web Page

Research Group(s):

Center for Medical Innovations in Extended Reality

Education:

Ph.D., Harvard University

Special Awards/Honors:

ACM Fellow, IEEE Fellow

Biography:

Joseph JaJa is a professor emeritus of electrical and computer engineering in the University of Maryland Institute for Advanced Computer Studies.

His research explores machine learning applications in biomedical data, data science, and computational neuroscience. JaJa also delves into parallel computing and advanced visualization techniques to enhance data analysis and interpretation.

Go here to view JaJa's academic publications.

Publications

2012

Wei Z, JaJa JF. 2012. Constructing Inverted Files: To MapReduce or Not Revisited. UMIACS-TR-2012-03

Wei Z, JaJa JF. 2012. An Optimized High-Throughput Strategy for Constructing Inverted Files. Parallel and Distributed Systems, IEEE Transactions on. PP(99):1-1.

2011

Wei Z, JaJa JF. 2011. Constructing Inverted Files on a Cluster of Multicore Processors Near Peak I/O Throughput. UMIACS-TR-2011-03

Wei Z, JaJa JF. 2011. A Fast Algorithm for Constructing Inverted Files on Heterogeneous Platforms. Parallel Distributed Processing Symposium (IPDPS), 2011 IEEE International. :1124-1134.

Prasad SK, Chtchelkanova A, Das S, Dehne F, Gouda M, Gupta A, JaJa JF, Kant K, La Salle A, LeBlanc R et al.. 2011. NSF/IEEE-TCPP curriculum initiative on parallel and distributed computing: core topics for undergraduates. Proceedings of the 42nd ACM technical symposium on Computer science education. :617-618.

2010

Smorul M, Song S, JaJa JF. 2010. Monitoring distributed collections using the Audit Control Environment (ACE). Proceedings of the 2010 Roadmap for Digital Preservation Interoperability Framework Workshop. :13:1–13:5-13:1–13:5.

Wei Z, JaJa JF. 2010. Optimization of linked list prefix computations on multithreaded GPUs using CUDA. Parallel Distributed Processing (IPDPS), 2010 IEEE International Symposium on. :1-8.

2009

Song S, JaJa JF. 2009. Techniques to audit and certify the long-term integrity of digital archives. International Journal on Digital Libraries. 10(2):123-131.

Smorul M, Song S, JaJa JF. 2009. An Implementation of the Audit Control Environment (ACE) to Support the Long Term Integrity of Digital Archives. Proceedings of DigCCurr2009 Digital Curation: Practice, Promise and Prospects. :164-164.

Song S, JaJa JF. 2009. Search and Access Strategies for Web Archives. Proceedings of IS&T Archiving 2009.

Wang Q, JaJa JF. 2009. Interactive direct volume rendering on desktop multicore processors. Concurrency and Computation: Practice and Experience. 21(17):2199-2212.

JaJa JF, Smorul M, Song S. 2009. Tools and Services for Long-Term Preservation of Digital Archives. Indo-US Workshop on International Trends in Digital Preservation.

Chockler G, Dekel E, JaJa JF, Jimmy Lin. 2009. Call for Papers: Special Issue of the Journal of Parallel and Distributed Computing: Cloud Computing. J. Parallel Distrib. Comput.. 69(9):813–-813–.

Kim J, JaJa JF. 2009. Streaming model based volume ray casting implementation for Cell Broadband Engine. Scientific Programming. 17(1):173-184.

2008

Song S, JaJa JF. 2008. Fast browsing of archived Web contents. 8th International Web Archiving Workshop, Aarhus, Denmark..

Remote D U, Kalluri S, Bader DA, Townshend J, JaJa JF, Zhang Z, Fallah-adl H. 2008. High Performance Computing Algorithms for Land Cover.

Wang Q, JaJa JF. 2008. Interactive High-Resolution Isosurface Ray Casting on Multicore Processors. Visualization and Computer Graphics, IEEE Transactions on. 14(3):603-614.

Song S, JaJa JF. 2008. Archiving Temporal Web Information: Organization of Web Contents for Fast Access and Compact Storage. UMIACS-TR-2008-08

JaJa JF, Shi Q, Varshney A. 2008. Parallel Algorithms for Volumetric Surface Construction.

2007

Kim J, JaJa JF. 2007. Component-based Data Layout for Efficient Slicing of Very Large Multidimensional Volumetric Data. Scientific and Statistical Database Management, 2007. SSBDM '07. 19th International Conference on. :8-8.

Song S, JaJa JF. 2007. ACE: A Novel Software Platform to Ensure the Integrity of Long Term Archives. UMIACS-TR-2007-07

Wang Q, JaJa JF, Varshney A. 2007. An efficient and scalable parallel algorithm for out-of-core isosurface extraction and rendering. Journal of Parallel and Distributed Computing. 67(5):592-603.

Song S, JaJa JF. 2007. Web Archiving: Organizing Web Objects into Web Containers to Optimize Access. UMIACS-TR-2007-42

Kim J, JaJa JF. 2007. Information-Aware 2^ n-Tree for Efficient Out-of-Core Indexing of Very Large Multidimensional Volumetric Data. Scientific and Statistical Database Management, 2007. SSBDM'07. 19th International Conference on. :9-9.

Song S, JaJa JF. 2007. New techniques for ensuring the long term integrity of digital archives. Proceedings of the 8th annual international conference on Digital government research. :57-65.

2006

Snelick R, JaJa JF, Kacker R, Lyon G. 2006. Synthetic‐perturbation techniques for screening shared memory programs. Software: Practice and Experience. 24(8):679-701.

JaJa JF. 2006. Robust technologies for automated ingestion and long-term preservation of digital information. Proceedings of the 2006 international conference on Digital government research. :285-286.

Kim J, JaJa JF. 2006. Information-aware HyperOctree for effective isosurface rendering of large scale time-varying data. UMIACS-TR-2006-00

Shi Q, JaJa JF. 2006. Efficient Isosurface Extraction for Large Scale Time-Varying Data Using the Persistent Hyperoctree (PHOT). UMIACS-TR-2006-01

JaJa JF. 2006. NSF Workshop Storage Resource Broker Data Grid Preservation Assessment. TR-2006.3

Shi Q, JaJa JF. 2006. Isosurface Extraction and Spatial Filtering using Persistent Octree (POT). Visualization and Computer Graphics, IEEE Transactions on. 12(5):1283-1290.

Kim J, JaJa JF. 2006. A Novel Information-Aware Octree for the Visualization of Large Scale Time-Varying Data. UMIACS-TR-2006-03

2005

Shi Q, JaJa JF. 2005. Optimal and near-optimal algorithms for generalized intersection reporting on pointer machines. Information Processing Letters. 95(3):382-388.

Moore RW, JaJa JF, Chadduck R. 2005. Mitigating risk of data loss in preservation environments. Mass Storage Systems and Technologies, 2005. Proceedings. 22nd IEEE / 13th NASA Goddard Conference on. :39-48.

Shi Q, JaJa JF. 2005. Techniques for indexing and querying temporal observations for a collection of objects. Algorithms and Computation. :822-834.

Shi Q, JaJa JF. 2005. Novel transformation techniques using q-heaps with applications to computational geometry. SIAM Journal on Computing. 34(6):1474-1492.

JaJa JF, Mortensen C, Shi Q. 2005. Space-efficient and fast algorithms for multidimensional dominance reporting and counting. Algorithms and Computation. :1755-1756.

Shi Q, JaJa JF. 2005. A new framework for addressing temporal range queries and some preliminary results. Theoretical Computer Science. 332(1–3):109-121.

2004

Smorul M, JaJa JF, Wang Y, McCall F. 2004. PAWN: Producer-Archive Workflow Network in support of digital preservation. UMIACS-TR-2004:2006-2006.

JaJa JF, Kim J, Wang Q. 2004. Temporal range exploration of large scale multidimensional time series data. Proceedings of SSDBM. :95-106.

Patil GP, Balbus J, Biging G, JaJa JF, Myers WL, Taillie C. 2004. Multiscale advanced raster map analysis system: definition, design and development. Environmental and Ecological Statistics. 11(2):113-138.

JaJa JF, Kim J, Wang Q. 2004. Efficient Serial and Parallel Algorithms for Querying Large Scale Multidimensional Time Series Data. UMIACS-TR-2004-50

JaJa JF. 2004. Strategies for exploring large scale data. Parallel Architectures, Algorithms and Networks, 2004. Proceedings. 7th International Symposium on. :2-2.

2003

Shi Q, JaJa JF. 2003. Fast Fractional Cascading and Its Applications. UMIACS-TR-2003-71

Smorul M, JaJa JF, McCall F, Brown S F, Moore R, Marciano R, Chen S-Y, Lopez R, Chadduck R. 2003. Recovery of a Digital Image Collection Through the SDSC/UMD/NARA Prototype Persistent Archive. UMIACS-TR-2003-105

Shi Q, JaJa JF. 2003. An O(n)-Space O(log n/log log n + f)-Query Time Algorithm for 3-D Dominance Reporting. UMIACS-TR-2003-77

Shi Q, JaJa JF, Mortensen C. 2003. Space-Efficient and Fast Algorithms for Multidimensional Dominance Reporting and Range Counting. UMIACS-TR-2003-101

Shi Q, JaJa JF. 2003. Fast Algorithms for 3-D Dominance Reporting and Counting. UMIACS-TR-2003-06

Shi Q, JaJa JF. 2003. Fast algorithms for a class of temporal range queries. Algorithms and Data Structures. :91-102.

2002

Shi Q, JaJa JF. 2002. Efficient techniques for range search queries on earth science data. Scientific and Statistical Database Management, 2002. Proceedings. 14th International Conference on. :142-151.

2000

JaJa JF. 2000. A perspective on Quicksort. Computing in Science Engineering. 2(1):43-49.

Kalluri SNV, JaJa JF, Bader DA, Zhang Z, Townshend JRG, Fallah-Adl H. 2000. High performance computing algorithms for land cover dynamics using remote sensing data. International Journal of Remote Sensing. 21(6-7):1513-1536.

Rodrıguez-Martinez M, Roussopoulos N, McGann JM, Keyley S, Katz V, Song Z, JaJa JF. 2000. MOCHA: a database middleware system featuring automatic deployment of application-specific functionality. Proceedings of the 2000 ACM SIGMOD International Conference on Management of Data, Dallas, Texas.

Mareboyana M, Srivastava S, JaJa JF. 2000. Web based progressive transmission for browsing remotely sensed imagery. Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International. 2:591-593vol.2-591-593vol.2.

Zhang Z, JaJa JF, Bader DA, Kalluri SNV, Song H, El Saleous N, Vermote E, Townshend JRG. 2000. Kronos: A software system for the processing and retrieval of large-scale AVHRR data sets. PE & RS- Photogrammetric Engineering and Remote Sensing. 66(9):1073-1082.

1999

Helman D, JaJa JF. 1999. Designing practical efficient algorithms for symmetric multiprocessors. Algorithm Engineering and Experimentation. :663-663.

Helman DR, JaJa JF. 1999. Prefix computations on symmetric multiprocessors. Parallel and Distributed Processing, 1999. 13th International and 10th Symposium on Parallel and Distributed Processing, 1999. 1999 IPPS/SPDP. Proceedings. :7-13.

Lindsay FE, Townshend JRG, JaJa JF, Humphries J, Plaisant C, Shneiderman B. 1999. Developing the next generation of Earth science data systems: the Global Land Cover Facility. Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International. 1:616-618vol.1-616-618vol.1.

Kalluri SNV, Zhang Z, JaJa JF, Bader DA, Song H, El Saleous N, Vermote E, Townshend JRG. 1999. A hierarchical data archiving and processing system to generate custom tailored products from AVHRR data. Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International. 5:2374-2376vol.5-2374-2376vol.5.

Bader DA, JaJa JF. 1999. Simple: A Methodology for Programming High Performance Algorithms on Clusters of Symmetric Multiprocessors (SMPs). Journal of Parallel and Distributed Computing. 58(1):92-108.

1998

Helman DR, Bader DA, JaJa JF. 1998. A Randomized Parallel Sorting Algorithm with an Experimental Study. Journal of Parallel and Distributed Computing. 52(1):1-23.

Zhang Z, Kalluri SNV, JaJa JF, Liang S, Townshend JRG. 1998. Models and high-performance algorithms for global BRDF retrieval. Computational Science Engineering, IEEE. 5(4):16-29.

Bader DA, JaJa JF, Chellappa R. 1998. Scalable Data Parallel Algorithms for Texture Synthesis and Compression using Gibbs Random Fields. UMIACS-TR-93-80

Acharya T, JaJa JF. 1998. An On-line Variable Length Binary Encoding. UMIACS-TR-95-39

Bader DA, JaJa JF. 1998. Parallel Algorithms for Image Histogramming and Connected Components with an Experimental Study. UMIACS-TR-94-133

Helman DR, JaJa JF, Bader DA. 1998. A new deterministic parallel sorting algorithm with an experimental evaluation. Journal of Experimental Algorithmics (JEA). 3

Helman DR, Bader DA, JaJa JF. 1998. A Parallel Sorting Algorithm With an Experimental Study. UMIACS-TR-95-102

1997

Dubayah R, Blair JB, Bufton JL, Clark DB, JaJa JF, Knox R, Luthcke SB, Prince S, Weishampel J. 1997. The vegetation canopy lidar mission. Proceedings of Land Satellite Information in the Next Decade, II: Sources and Applications. Bethesda (MD): American Society of Photogrammetry and Remote Sensing. :100-112.

Fallah-Adl H, JaJa JF, Liang S. 1997. Fast algorithms for estimating aerosol optical depth and correcting thematic mapper imagery. The Journal of Supercomputing. 10(4):315-329.

1996

Fallah-Adl H, JaJa JF, Liang S, Townshend J, Kaufman YJ. 1996. Fast algorithms for removing atmospheric effects from satellite images. Computational Science Engineering, IEEE. 3(2):66-77.