Jeong-Hyon Hwang

Dr. Jeong-Hyon Hwang is an Associate Professor in the Department of Computer Science at the University at Albany, State University of New York, and Director of the Data Management Systems (DMS) Lab. In 2012, Dr. Hwang became the recipient of the highly competitive National Science Foundation’s (NSF) Faculty Early Career Development (CAREER) Award. This award came with funding of approximately $500,000 which was used in the development of G*, a system capable of efficiently storing and querying series of graphs on multiple servers.

Research Interests

Databases and Distributed Systems (detailed topics: graph database systems, trajectory data management, real-time data stream processing, Internet-scale data management, fault tolerance and load management).

Publications

Refereed Journal Publications

1. Chan-Myung Kim, Yong-Hwan Kim, Youn-Hee Han, and Jeong-Hyon Hwang, ``Betweenness Centrality Estimation for Social-Aware Routing in Delay-Tolerant Networks’’, Springer Mobile Networks and Applications (MONET), 21(3): 469-481, 2016.

2. Alan Labouseur*, Jeremy Birnbaum*, Paul Olsen Jr.*, Sean Spillane*, Jayadevan Vijayan*,  Wook-Shin Han, Jeong-Hyon Hwang, ``The G* Graph Database: Efficiently Managing Large Distributed Dynamic Graphs’’, Distributed and Parallel Databases (DAPD), 33(4): 479-514, 2015

3. Jonathan Muckell, Paul Olsen Jr.*, Jeong-Hyon Hwang, Catherine Lawson, S. S. Ravi, ``Compression of Trajectory Data: A Comprehensive Evaluation and New Approach’’, GeoInformatica, 18(3): 435-460, 2014. 3

4. SungHo Cho, Jeong-Hyon Hwang, Kyung Yul Bae and Chong-Sun Hwang, ``An Optimistic Cache Consistency Protocol using a Preemptive Approach’’, IEICE Transactions on Information and Systems, E83-D(9): 1772-1780, 2000.

5. SungHo Cho, Jeong-Hyon Hwang, Kyung Yul Bae and Chong-Sun Hwang, ``Run and Hit: Optimistic Concurrency Control for Mobile Computing’’, Parallel and Distributed Systems and Networks, 3(3): 171-179, 2000.

Refereed Conference/Workshop Publications

1. Paul Olsen Jr.*, Alan Labouseur*, and Jeong-Hyon Hwang, ``Efficient Top-k Closeness Centrality Search’’, Proc. of the 30th International Conference on Data Engineering (ICDE), 196-207, Chicago, Illinois, 2014 (acceptance rate: 19.96% of 446).

2. Alan Labouseur*, Paul Olsen Jr.*, Kyuseo Park*, and Jeong-Hyon Hwang, ``A Demonstration of Query- Oriented Distribution and Replication Techniques for Dynamic Graph Data’’, Proc. of the 23rd World Wide Web Conference (WWW), 127-130, Seoul, Korea, 2014 (acceptance rate: 33.3% of 84).

3. Ewa Musial, Jeong-Hyon Hwang, Mei-Hwa Chen, and S. S. Ravi, ``Efficient Entity Resolution for Heterogeneous Datasets’’, to appear in Proc. of the 23rd International Conference on Software Engineering and Data Engineering (SEDE), 2014.

4. Kyuseo Park*, Jeremy Birnbaum*, Yuchao Ma*, Paul Olsen Jr.*, Jonathan Muckell, S. S. Ravi, Catherine Lawson, and Jeong-Hyon Hwang, ``TrajMetrix: A Trajectory Compression Benchmarking Framework (Demo Paper)’’, Proc. of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS), 562-565, Orlando, Florida, 2013.

5. Alan Labouseur*, Paul Olsen Jr.*, and Jeong-Hyon Hwang, ``Scalable and Robust Management of Dynamic Graph Data’’, Proc. of the First International Workshop on Big Dynamic Distributed Data (BD3), held in conjunction with the 39th International Conference on Very Large Data Bases (VLDB), 43-48, Riva del Garda, Italy, 2013.

6. Mert Akdere, Jeong-Hyon Hwang, and Ugur Cetintemel, ``Real-time Probabilistic Data Association over Streams’’, Proc. of the 7th ACM International Conference on Distributed Event-Based Systems (DEBS), 219-230, Arlington, Texas, 2013 (acceptance rate: 27.5% of 58).

7. Jeremy Birnbaum*, Hsiang-Cheng Meng*, Jeong-Hyon Hwang, and Catherine Lawson, ``Similarity- Based Compression of GPS Trajectory Data’’, Proc. of the 4th International Conference on Computing for Geospatial Research and Application (COM.Geo), 92-95, San Jose, California, 2013.

8. Jonathan Muckell, Paul Olsen Jr.*, Jeong-Hyon Hwang, S. S. Ravi, Catherine Lawson, ``A Framework for Efficient and Convenient Evaluation of Trajectory Compression Algorithms’’, Proc. of the 4th International Conference on Computing for Geospatial Research and Application (COM.Geo), 24-31, San Jose, California, 2013.

9. Sean Spillane*, Jeremy Birnbaum*, Daniel Bokser*, Daniel Kemp*, Alan Labouseur*, Paul Olsen Jr.*, Jayadevan Raja*, Jeong-Hyon Hwang, and Jun-Weon Yoon, ``A Demonstration of the G* Graph Database Systems’’, Proc. of the 29th International Conference on Data Engineering (ICDE), 1356-1359, Brisbane, Australia, 2013.

10. Jeong-Hyon Hwang, Jeremy Birnbaum*, Rohini Vabbalareddy*, S. S. Ravi, and Chanyeol Park, ``A Graph Database Approach for Efficient and Scalable Management of Simulations’’, Proc. of the 2nd Annual Workshop on High-Performance Computing meets Databases (HPCDB), held in conjunction with the Conference on High Performance Computing Networking, Storage and Analysis (SC), 1310-1311, Salt Lake City, Utah, 2012.

11. Jonathan Muckell, Vikram Patil*, Fan Ping*, Jeong-Hyon Hwang, Catherine Lawson, and S. S. Ravi, ``SQUISH: An Online Approach for GPS Trajectory Compression’’, Proc. of the 2nd International Conference on Computing for Geospatial Research and Application (COM.Geo), 13.1-13.8, Washington, DC, 2011 (acceptance rate: 33.8% of 157).

12. Fan Ping*, Xiaohu Li*, Christopher McConnell*, Rohini Vabbalareddy*, and Jeong-Hyon Hwang, ``Towards Optimal Data Replication Across Data Centers’’, Proc. of the 1st Workshop on Data Center Performance (DCPerf), held in conjunction with the 31st International Conference on Distributed Computing Systems (ICDCS), 66-71, Minneapolis, Minnesota, 2011. 20. Jonathan Muckell, Jeong-Hyon Hwang, Catherine Lawson, and S. S. Ravi, ``Algorithms for Compressing GPS Trajectory Data: An Empirical Evaluation’’, Proc. of 18th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS), 402-405, San Jose, California, 2010 (best poster presentation runners up). 4

13. Christopher McConnell*, Fan Ping*, and Jeong-Hyon Hwang, ``iFlow: An Approach for Fast and Reliable Internet-Scale Stream Processing Utilizing Detouring and Replication’’, Proc. of the 36th International Conference on Very Large Data Bases (VLDB), 1557-1560, Singapore, 2010.

14. Fan Ping*, Christopher McConnell*, and Jeong-Hyon Hwang, ``A Retrospective Approach for Accurate Network Latency Prediction’’, Proc. of the 2nd Workshop on Grid and P2P Systems and Applications (GridPeer), held in conjunction with the 19th International Conference on Computer Communications and Networks (ICCCN), 1-6, Zurich, Switzerland, 2010.

15. Christopher McConnell*, Fan Ping*, and Jeong-Hyon Hwang, ``Detouring and Replication for Fast and Reliable Internet-Scale Stream Processing’’, Proc. of the 3rd International Workshop on Data Intensive Distributed Computing (DIDC), held in conjunction with the 19th International Symposium on High Performance Distributed Computing (HPDC), 737-745, Chicago, Illinois, 2010.

16. Jeong-Hyon Hwang, Sanghoon Cha, Ugur Cetintemel, and Stan Zdonik, ``Borealis-R: A Replication- Transparent Stream Processing System for Wide-Area Monitoring Applications (Demonstration)’’, Proc. of the ACM SIGMOD International Conference on Management of Data, 1303-1306, Vancouver, Canada, 2008.

17. Jeong-Hyon Hwang, Ugur Cetintemel, and Stan Zdonik, ``Fast and Highly-Available Stream Processing over Wide Area Networks’’, Proc. of the 24th International Conference on Data Engineering (ICDE), 804-813, Cancun, Mexico, 2008 (acceptance rate: 12.1% of 617).

18. Jeong-Hyon Hwang, Ying Xing, Ugur Cetintemel, and Stan Zdonik, ``A Cooperative, Self-Configuring High-Availability Solution for Stream Processing’’, Proc. of the 23rd International Conference on Data Engineering (ICDE), 176-185, Istanbul, Turkey, 2007 (acceptance rate: 18.5% of 659).

19. Jeong-Hyon Hwang, Ugur Cetintemel, and Stan Zdonik, ``Fast and Reliable Stream Processing over Wide Area Networks’’, Proc. of the 1st IEEE Workshop on Scalable Stream Processing systems (SSPS), held in conjunction with the 23rd International Conference on Data Engineering (ICDE), Istanbul, Turkey, 2007.

20. Ying Xing, Jeong-Hyon Hwang, Ugur Cetintemel, and Stan Zdonik, ``Providing Resiliency to Load Variations in Distributed Stream Processing’’, Proc. of the 32nd International Conference on Very Large Data Bases (VLDB), 775-786, Seoul, Korea, 2006 (acceptance rate: 13.9% of 331).

21. Y. Ahmad, U. Cetintemel, B. Berg, M. Humphrey, J.-H. Hwang, O. Papaemmanouil, A. Rasin, N. Tatbul, Y. Xing, and S. Zdonik, ``Distributed Operation in the Borealis Stream Processing Engine (Invited Demonstration)’’, Prof. of the 2nd International Conference on Geosensor Networks, Boston, Massachusetts, 2006.

22. Y. Ahmad, U. Cetintemel, B. Berg, M. Humphrey, J.-H. Hwang, O. Papaemmanouil, A. Rasin, N. Tatbul, Y. Xing, and S. Zdonik, ``Distributed Operation in the Borealis Stream Processing Engine (Demonstration)’’, Proc. of the ACM SIGMOD International Conference on Management of Data, 882-884, Baltimore, Maryland, 2005 (best demo award).

23. Jeong-Hyon Hwang, Magdalena Balazinska, Alexander Rasin, Ugur Cetintemel, Michael Stonebraker, and Stan Zdonik, ``High-Availability Algorithms for Distributed Stream Processing’’, Proc. of the 21st International Conference on Data Engineering (ICDE), 779-790, Tokyo, Japan, 2005 (acceptance rate: 12.9% of 521).

24. Ying Xing, Stan Zdonik, and Jeong-Hyon Hwang, ``Dynamic Load Distribution in the Borealis Stream Processor’’, Proc. of the 21st International Conference on Data Engineering (ICDE), 791-802, Tokyo, Japan, 2005 (acceptance rate: 12.9% of 521).

25. M. Balazinska, D. Abadi, Y. Ahmad, M. Cherniack, J.-H. Hwang, W. Lindner, A. Rasin, N. Tatbul, Y. Xing, S. Zdonik, ``The Design of the Borealis Stream Processing Engine’’, Proc. of 2nd Biennial Conference on Innovative Data Systems Research (CIDR), 277-289, Asilomar, California, 2005.

26. D. Abadi, D. Carney, U. Cetintemel, M. Cherniack, C. Convey, C. Erwin, E. Galvez, M. Hatoun, J.-H. Hwang, A. Maskey, A. Rasin, A. Singer, M. Stonebraker, N. Tatbul, Y. Xing, R.Yan, S. Zdonik, ``Aurora: A Data Stream Management System (Demonstration)’’, Proc. of the ACM SIGMOD International Conference on Management of Data, 666, San Diego, California, 2003.

27. Jeong-Hyon Hwang, SungHo Cho, and Chong-Sun Hwang, ``Optimized Scheduling on Broadcast Disks’’, Proc. of the 2nd International Conference on Mobile Data Management (MDM), 91-104, Hong Kong, China, 2001.

28. Jeong-Hyon Hwang, SungHo Cho, and Chong-Sun Hwang, ``Selection of Disk Frequencies for Optimal Multidisk Broadcast Program Generation’’, Proc. of the 26th Korea Information Science Society Fall Conference, 26 (3): 252-254, Seoul, Korea, 1999.

29. SungHo Cho, Kyung Y. Bae, Jeong-Hyon Hwang, and Chong-Sun Hwang, ``An Optimistic Two-Phase Locking Method with a No-Wait Approach’’, Proc. of HPC Asia 1998, 1414-1421, Singapore, 1998. 5

30. Jeong-Hyon Hwang, Joung-Hoon Kim, Jin-Ho Ahn, and Chong-Sun Hwang, ``Implementation of a Ray-Tracer on a Java-based Parallel-Execution Environment’’, Proc. of the 25th Korea Information Science Society Fall Conference, 25 (2): 771-773, Seoul, Korea, 1998. Book Chapters

31. Jeong-Hyon Hwang, Alan Labouseur*, Paul Olsen*, ``Text Stream Processing’’, to appear in Encyclopedia of Database Systems, Ling Liu, Tamer Ozsu (editors), Springer. 40. Jeong-Hyon Hwang, Alan Labouseur*, Paul Olsen*, ``Non-Relational Streams’’, to appear in Encyclopedia of Database Systems, Ling Liu, Tamer Ozsu (editors), Springer.

32. Magdalena Balazinska, Jeong-Hyon Hwang, Mehul Shah, ``High Availability and Fault Tolerance in Data Stream Management Systems’’, Encyclopedia of Database Systems, Ling Liu, Tamer Ozsu (editors), Springer (ISBN: 978-0-387-49616-0), 1109-1115, 2009.

33. N. Tabul, Y. Ahmad, U. Cetintemel, J.-H. Hwang, Y. Xing, S. Zdonik, ``Load Management and High Availability in the Borealis Distributed Stream Processing Engine’’, Advances in Geosensor Networks, S. Nittel, A. Labrinidis, A. Stefanidis (editors), Springer-Verlag (ISBN: 978-3-540-79995-5), 66-85, 2008.

34. U. Cetintemel, D. Abadi, Y. Ahmad, H. Balakrishnan, M. Balazinska, M. Cherniack, J.-H. Hwang, W. Lindner, S. Madden, A. Maskey, A. Rasin, E. Ryvkina, M. Stonebraker, N. Tatbul, Y. Xing, S. Zdonik, ``The Aurora and Borealis Stream Processing Engines’’, Data Stream Management: Processing High- Speed Data Streams, M. Garofalakis, J. Gehrke, R. Rastogi (editors), Springer-Verlag, 2006.

Patents

Chitra Dorai, Jeong-Hyon Hwang, Rob Strom, ``Stochastic Control Optimization for Sender-based Flow Control in a Distributed Stateful Messaging System’’, US Patent 7761401, 2010.

Books

Jeong-Hyon Hwang, ``Algorithms in C (Korean translation of a book originally written by Robert Sedgewick)’’, 800 pages, Pearson Korea, 2002.

Jeong-Hyon Hwang, ``Java2 Unleashed (Korean translation of a book originally written by Jamie Jaworski)’’, 1200 pages, Daerim pub. Co., 1999.

Open-Source Software

G*: a parallel system for efficiently storing and querying series of graphs that represent evolving networks, supported by NSF CAREER award IIS-1149372, approximately 20,000 lines of source code.

Awards and Honors

• Best Poster Award, IEEE International Conference on Data Engineering (ICDE), 04/03/2014
• NSF CAREER award, 01/2012
• Best Poster Presentation Runners Up, ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS), 11/2010
• IBM Open Collaborative Faculty Award, 06/2010
• Best Demo Award, ACM SIGMOD International Conference on Management of Data, 06/2005
• National Scholarship, Ministry of Information and Communication of Korea, 09/2001 - 08/2005
• New Software Award (Grand Prize, Multimedia Contents Area), Ministry of Information and Communication of Korea, 02/2001