Articles
Seon Ho Kim, Byunggu Yu, and Jae-young Chang,
Zoned-Partitioning of Tree-Like Access Methods, accepted for publication in the
Journal of Information Systems, Elsevier.
Byunggu Yu, Seon Ho Kim, and Jaeyoung Chang. An
Efficient Storage Technique of Hierarchical Index Structures in Multi-zoned
Disk Environments. Journal of
Byunggu Yu and Thomas Bailey. Processing Partially
Specified Queries over High-Dimensional Databases. DKE Data & Knowledge Engineering, Vol. 62, Issue 1, pp.
177-197, 2007, Elsevier. http://dx.doi.org/10.1016/j.datak.2006.08.001
Byunggu Yu, Thomas Bailey, and Ratko Orlandic.
Estimating the Performance of Multidimensional Access Methods based on
Non-Overlapping Regions. IJIS
International Journal of Intelligent Systems, Vol. 22, pp. 1-19, 2007, Wiley.
doi:10.1002/int.20200, Personal preprint: pdf
Byunggu Yu and Ruben Gamboa. Spatio-Temporal Portals
for Continuously Changing Network Nodes. Encyclopedia
of Portal Technology and Applications, 2007, in press, Idea Group Ref.
Byunggu Yu and Ratko Orlandic. Chapter XVIII: Indexing Regional Objects in High-Dimensional
Spaces. Advanced Topics in Database
Research, Vol. 5, pp. 348-372, 2006, Idea
Group Publishing.
Personal preprint pdf
Ratko Orlandic and Byunggu Yu. Scalable QSF-Trees:
Retrieving Regional Objects in High-Dimensional Spaces. JDM Journal of Database Management, Vol. 15, No.3, pp. 45-59, 2005,
Idea Group Publishing.
Personal preprint pdf
Ratko Orlandic and Byunggu Yu. A Retrieval Technique
for High-Dimensional Data and Partially Specified Queries. DKE Data & Knowledge Engineering, Vol. 42, No. 1, pp. 1-21,
2002, Elsevier.
Personal preprint pdf
Byunggu Yu, Soo Chan Hwang, and Jong Hoo Back. A
Spatial Database Search Technique for Moving Reference Objects. Journal of Institute of Electronics
Engineering of
Byunggu Yu and Soo Chan Hwang. A Study of Realtime
Database Search Techniques for Moving Objects. Journal of the EITE Electronics,
Information, and Telecommunication Engineering (Korean Journal), Vol. 1, No. 2,
pp. 161-170, 1995,
Refereed
Special Interest Conference Proceedings (including LNCS) with Presentations
Shayma Alkobaisi, Wan D. Bae, Seon Ho Kim, and Byunggu
Yu. MBR Models for Uncertainty Regions of Moving Objects. DASFAA Database
Systems for Advanced Applications, LNCS Lecture Notes in Computer Science,
accepted as a full paper for publication and for presentation), Springer-Verlag.
(acceptance rate = 16.7%)
Byunggu Yu, Seon Ho Kim, Shayma Alkobaisi, Wan D. Bae,
and Thomas Bailey. The Tornado Model: Uncertainty Model for Continuously
Changing Data. DASFAA Database Systems for Advanced Applications, LNCS Lecture Notes in Computer Science, Vol.
4443, pp. 624-636, April 2007, Springer-Verlag.
(acceptance rate = 70/375=18.7%; graduate advisee) personal
preprint pdf
Byunggu Yu and Seon Ho Kim. Interpolating and Using
Most Likely Trajectories in Moving-Objects Databases. DEXA Database and Expert
Systems Applications, LNCS Lecture Notes
in Computer Science, Vol. 4080, pp. 718-727, 2006, Springer-Verlag.
(acceptance rate=90/388≈23%) personal preprint pdf
Byunggu Yu. A Spatiotemporal Uncertainty Model of
Degree 1.5 for Continuously Changing Data Objects. Proceedings of ACM SIGAPP SAC, Symposium on Applied
Computing,
(acceptance rate=12/35≈34%) personal preprint pdf
Byunggu Yu and S.H. Kim. An Efficient Zoning Technique
for Multi-Dimensional Access Methods. In: Proceedings
of VLDB Workshop on Trends in
(acceptance rate=10/38≈26%) personal preprint pdf
Byunggu Yu. Adaptive query processing in
point-transformation schemes. DEXA Database and Expert Systems Applications, LNCS Lecture Notes in Computer Science,
Vol. 3588, pp. 197-206, 2005, Springer-Verlag.
(acceptance rate=92/390≈23%) personal preprint pdf
Byunggu Yu. A Query System for Spatiotemporal Database
Applications. Proceedings of IEEE 18th
Int. Conf. on Systems Engineering, pp. 28-33, 2005, IEEE.
personal preprint pdf
(bi-annual, 33 selected) personal preprint pdf
Byunggu Yu, Seonho Kim, Thomas Bailey, and Ruben
Gamboa. Curve-Based Representation of Moving Object Trajectories. Proceedings of IEEE IDEAS International
Database Engineering and Applications, pp. 419-425, 2004, IEEE.
(acceptance rate=30/119≈25% plus 17 short papers) personal preprint pdf
Bonggi Jun, Bonghee Hong, and Byunggu Yu. Dynamic Splitting
Policies of the Adaptive 3DR-tree for Indexing Continuously Moving Objects.
DEXA International Conference on Database and Expert Systems Applications, LNCS Lecture Notes in Computer Science, Vol.
2736, pp. 308-317, 2003, Springer-Verlag.
(acceptance rate=91/236≈39%) personal preprint pdf
Dong Hyun Kim, Bong Hee Hong, Byunggu Yu, and Eun Suk
Hong. Validation-based Reprocessing Scheme for Updating Spatial Data in Mobile
Computing Environments. Proceedings of
IEEE AINA International Conference on Advanced Information Networking and
Applications, pp. 211-214, 2003, IEEE.
(2003 acceptance rate is unknown; 2004 acceptance rate
was 25%) personal preprint pdf
Byunggu Yu, Thomas Bailey, Ratko Orlandic, and Jothi
Somavaram. KDBKD-Tree: A Compact KDB-Tree Structure for Indexing
Multidimensional Data. Proceedings of IEEE
(graduate advisee paper; 114 selected; one of 65
Ratko Orlandic and Byunggu Yu. Inverted-Space Storage
Organization for Persistent Data of Very High Dimensionality. Proceedings IEEE
(113 selected) personal preprint pdf
Ratko Orlandic and Byunggu Yu. Implementing KDB-Trees
to Support High-Dimensional Data. Proceedings
of IEEE IDEAS International Database Engineering and Applications Symposium,
58-67, 2001, IEEE.
(acceptance rate=27/80≈33%) personal preprint pdf
Byunggu Yu and Ratko Orlandic. Object and Query
Transformation: Supporting Multi-Dimensional Queries in Transactional Systems. Proceedings of ACM CIKM International
Conference on Information and Knowledge Management, pp. 141-149, 2000, ACM.
(acceptance rate=66/179≈36%) personal preprint pdf
Ratko Orlandic and Byunggu Yu. A Study of MBR-Based
Spatial Access Methods: How Well They Perform in High-Dimensional Spaces. Proceedings of IEEE IDEAS International
Database Engineering and Applications Symposium, pp. 306-315, 2000, IEEE.
(acceptance rate=36/90≈40%) personal preprint pdf
Byunggu Yu, Ratko Orlandic, and Martha Evens. An
Efficient and Scalable Spatial Access Method: Simple QSF-trees. Proceedings ACM CIKM International
Conference on Information and Knowledge Management, pp. 5-14, 1999, ACM.
(acceptance rate= 69/172≈40%) personal preprint pdf
Byunggu Yu and Martha Evens. Cognitive Issues in
Searching Images with Visual Queries. Proceedings
of the SPIE 27th AIPR Advances in Computer-Assisted Recognition, Vol. 3584,
pp. 162-173, 1998, SPIE.
More
Refereed Conference with Presentations
Pradip Peter Dey, Arun Datta, Mohammad Amin, Thomas
Gatton, Alireza Farahani, and Byunggu Yu. A Distributed Preprocessor System. Proceedings of NCCCIE National Conference on
Convergence of Computer and Information Engineering, in press, PSG College of Technology, India.
Byunggu Yu and S.H. Kim. Zoning Multidimensional
Access Methods for Analytical Database Applications. Proceedings of ICCSA Intl. Conf. on Computer Sci. and its Applications,
pp. 191-196, 2005, US Education.
(acceptance rate=105/298≈35% )
Steven D. Prager and Byunggu Yu. Contextualized
Probability for Approximation of Spatiotemporal Data Distribution. Proceedings of ISAS/CITSA International
Joint Conference on Information Systems Analysis and Synthesis and on
Cybernetics and Information Technologies, Systems and Applications, pp.
318-322 (in top 0.1 papers), 2005, IIIS.
(acceptance rate=115/410≈28% ) personal preprint pdf
Byunggu Yu. The Dynamic QSF-Tree: An Access Method for
Highly Dynamic Sets of High-Dimensional Regional Objects. Proceedings of ICCSA Intl. Conf. on Computer Sci. and its Applications,
pp. 267-272, 2003, US Education.
(acceptance rate=122/193≈63%)
Dehua Zhao, Byunggu Yu, Dan Randolph, and Bong Hee
Hong. Relational Geographic Databases. Proceedings
of Systematics, Cybernetics, and Informatics, Vol. VI, pp. 95-100 (the best
paper from the session), 2003, IIIS.
(graduate advisee paper selected as a best paper)
Seong-Do Chi, Young Kwang Kim, Byunggu Yu, S.H. Chae,
and G.S. Choi. A Role of Discrete Event Modeling for Advanced Traveler
Information Systems. Proceedings of AIS
International Conference on Artificial Intelligence Systems, pp. 37-43,
1996, AIS.
Byunggu Yu and Soo Chan Hwang. A New Dynamic Index
Technique for Spatial Data: 2POR-trees. Proceedings
of KISS
Seong-Do Chi, Young
Kwang Kim, Ja Oak Lee, Byunggu Yu, and T.H. Cho. Using the Modeling and
Simulation to Develop the
Byunggu Yu. A Realtime Search Mechanism for Continuous
Moving Objects in a Spatial Databases. Proceedings
of the 1st Human-Tech Research Paper (Thesis) Competition, (one of the best
3, Gold Prize), Samsung Elec. Co.
Advisee papers edited by, but not co-authored by, B.
Yu: Lawrence Craig Unrein. Processing Multidimensional Ad Hoc Queries over
High-Dimensional Databases. Proceedings
of ISAS/CITSA International Joint Conference on Information Systems Analysis
and Synthesis and on Cybernetics and Information Technologies, Systems and
Applications, pp. 323-328 (in top 0.1 papers), 2005, IIIS.
Dissertation
Byunggu Yu, A Family of Scalable Spatial Access
Methods for High-Dimensional Data, Ph.D. Dissertation, Illinois Institute of
Technology, Chicago, IL, 2000.
Byunggu Yu, Dynamic Index Techniques for Spatial
Databases, M.S. Dissertation,
Byunggu Yu, Realtime Search Techniques for Moving
Objects , B.S. Research, Hangkong University, Korea, 1994.
Supported
Proposals
Dr. Ronald Uhlig (contact person), Dr. Ali Farahani, Dr.
Byunggu Yu, Dr. Feodor Vainstein, Dr. Shekar Viswana, Dr. Howard Evans (School
Dean), Achieving Compelling Student Comprehension of Complex Information
Structures, National University, $19,000 in cash and $49,000 in technology for
2007-2008 AY, HP Higher Ed. Grant ID 1896669. Funded.
PI: Dr. Byunggu Yu, Co-PI: Dr. Seon Ho Kim, SPOT-SQL,
Sun Microsystems. SPOT-SQL One Phase I: 3 SPOT developer packages w/ 9 SPOTs
and three developer software at about $1,857 and technical support;
collaboration with Sun scientists in Java DB and SPOT research. Funded for
on-going effort.
PI: Dr. Byunggu Yu, Multi-Layer Spatial Access
Methods, Informix Software, Inc., $222,250.00, 2001 – 2004, Funded.
PI: Dr. Byunggu Yu, Towards Processing Complex Spatial
Queries, NSF EPSCoR NSFLOC4304, $33,028.97, 2001 – 2003, Funded.
PI. Dr. Byunggu Yu, Co-PIs: Dr. Ruben Gamboa and Dr.
Thomas Bailey, A Database Server for Moving Object Trajectories, NSF 04-500,
IIS, IDM, Rated “Competitive” by NSF panel but will not be funded.
PI: Dr. Byunggu Yu, A Scalable Database Server for
Moving Object Trajectories, NSF 02-111, IIS, IDM, Rated “Competitive” by NSF
panel but will not be funded.
PI: Dr. Scott Leutenegger, Co-PIs: Mario Lopez,
Byunggu Yu, and Seon Ho Kim, A General Database Architecture for Storage and
Retrieval of Continuously Changing Data, NSF ITR 2004, $693,858, Not Funded.
Classroom
Projects
(linked on my home page)
GUTS-MO: Geographic Uncertainty Tracking System for
Moving Objects
Past
Projects on which I worked as an involved re
1997 to 1998, Lung Scan Database Project,
1995 to 1997, Advanced Traveler Information System,
1995 to 1997, Office Automation System,
1994 to 1995, K-2 Airplane Navigation Simulator,