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Wucherl (William) Yoo

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Wucherl (William) Yoo
Computer Research Scientist
Phone: +1 510 486 4842
Scientific Data Management Group
050B-3243A

Position

Research Scientist, Nov 2013 - current.

Education 

Ph.D. in Computer Science, University of Illinois at Urbana-Champaign, USA, Aug 2012.

 

B.S. in Computer Science and Engineering, Seoul National University, Republic of Korea, June 2006. 

Ph.D. in Computer Science, University of Illinois at Urbana-Champaign, USA, Aug 2012.

B.S. in Computer Science and Engineering, Seoul National University, Republic of Korea, June 2006.  

Narrative

Dr. Yoo is a research scientist of the Scientific Data Management Research Group at Lawrence Berkeley National Laboratory. His research interests are high-performance data systems, machine learning mechanisms for large-scale data analysis, and automated performance optimization. He has researched and developed a methodology to infer and predict available bandwidth at edge-to-edge paths from ESNet 100 Gbps network. He has researched and implemented an automated mechanism that can identify performance outliers and anomalies in scientific clusters. He has researched and implemented online failure prediction of job task failures in scientific clusters. He investigated and adapted machine learning mechanisms to fingerprint and identify the patterns of resource bottleneck in the parallel applications and systems. He evaluated the applicability of identified bottlenecks from the automated system against real-world applications and showed their performance improvement. 

Journal Articles

M. Montanari, E. Chan, K. Larson, W. Yoo, R. H. Campbell, "Distributed security policy conformance", Computers & Security, March 31, 2013,

Conference Papers

Jonathan Wang, Wucherl Yoo, Alex Sim, Peter Nugent, K. John Wu, "Parallel Variable Selection for Effective Performance Prediction", the 17th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid2017), 2017,

J. Kim, W. Yoo, A. Sim, S.C. Suh, I. Kim, "A Lightweight Network Anomaly Detection Technique", International Workshop on Computing, Networking and Communications (CNC 2017), 2017,

W. Yoo, B. Foster, A. Sim, K. Wu, "Machine Learning Based Job Status Prediction in Scientific Clusters", IEEE SAI Computing Conference, 2016, 44-53, doi: 10.1109/SAI.2016.7555961

W. Yoo, M. Koo, Y. Cao, A. Sim, P. Nugent, K. Wu, "PATHA: Performance Analysis Tool for HPC Applications", the 34th IEEE International Performance Computing and Communications Conference (IPCCC 2015), 2015,

W. Yoo, A. Sim, "Network Bandwidth Utilization Forecast Model on High Bandwidth Networks", IEEE International Conference on Computing, Networking and Communications (ICNC’15), 2015,

W. Yoo, A. Sim, "Efficient Changing Pattern Detection on High Bandwidth Network Measurements", 7th International Conference on Grid and Distributed Computing, 2014,

W. Yoo, K. Larson, L. Baugh, S. Kim, R. H. Campbell, "ADP: automated diagnosis of performance pathologies using hardware events", SIGMETRICS '12: Proc. of the 12th ACM SIGMETRICS/PERFORMANCE joint international conference on Measurement and Modeling of Computer Systems, 2012,

W. Yoo, K. Larson, L. Baugh, S. Kim, W. Ahn, R. H. Campbell, "Automated Fingerprinting of Performance Pathologies Using Performance Monitoring Units (PMUs)", HotPar'11: Proc. of USENIX Workshop on Hot topics in parallelism., May 26, 2011,

M. Montanari, E. Chan, K. Larson, W. Yoo, R. H. Campbell, "Distributed security policy conformance", Future Challenges in Security and Privacy for Academia and Industry, January 1, 2011,

W. Yoo, S. Shi, W. J. Jeon, K. Nahrstedt, R. H. Campbell, "Real-time parallel remote rendering for mobile devices using graphics processing units", ICME '10: IEEE International Conference onMultimedia and Expo, July 19, 2010,

Book Chapters

W. Yoo, M. Koo, Y. Cao, A. Sim, P. Nugent, K. Wu, "Performance Analysis Tool for HPC and Big Data Applications on Scientific Clusters", Conquering Big Data with High Performance Computing, edited by R. Arora, (Springer International: 2016) Pages: 139-161 doi: 10.1007/978-3-319-33742-5

Posters

J. Wang, W. Yoo (Advisor), A. Sim (Advisor), K. Wu (Advisor), "Analysis of Variable Selection Methods on Scientific Cluster Measurement Data", International Conference for High Performance Computing, Networking, Storage and Analysis (SC’16), ACM Student Research Competition (SRC), Second place winner, 2016, 2016,

M. Bae, W. Yoo (Advisor), A. Sim (Advisor), K. Wu (Advisor), "Discovering Energy Resource Usage Patterns on Scientific Clusters", International Conference for High Performance Computing, Networking, Storage and Analysis (SC’16), ACM Student Research Competition (SRC), Third place winner, 2016, 2016,

M. Koo, W. Yoo (advisor), A. Sim (advisor), "I/O Performance Analysis Framework on Measurement Data from Scientific Clusters", International Conference for High Performance Computing, Networking, Storage and Analysis (SC’15), ACM Student Research Competition (SRC), 2015, 2015,