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Alex Sim,SDM, SDD, Lawrence Berkeley National Laboratory
ASim@lbl.gov   510-495-2290   http://www.lbl.gov/~asim   

Demos and Posters
  1. R. Monga, A. Sim, K. Wu, “Comparative Study of the Cache Utilization Trends for Regional Scientific Data Caches”, ACM/IEEE The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC’23), ACM Student Research Competition (SRC), 2023.
  2. J. Bellavita, A. Sim, K. Wu, "Predicting Scientific Dataset Popularity Using dCache Logs", ACM/IEEE The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC’22), ACM Student Research Competition (SRC), 2022.
  3. C. Sim, C. Guok, A. Sim, K. Wu, "Data Throughput Performance Trends of Regional Scientific Data Cache", ACM/IEEE The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC’22), ACM Student Research Competition (SRC), 2022.
  4. A. Sim, "Data Access Trends in Southern California Petabyte Scale Cache", WLCG Data Organization, Management and Access (DOMA) general meeting, CERN, 2022.
  5. A. Pereira, A. Sim, K. Wu, S. Yoo, H. Ito, "Data access pattern analysis for dCache storage system", International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia 2022), 2022.
  6. L. Jin, A. Lazar, C. Brown, Q. Chen, A. Sim, K. Wu, S. Ravulaparthy, V. Garikapati, C. A. Spurlock, "What Makes You Hold on to That Old Car? Joint Insights from Machine Learning and Multinomial Logit on Vehicle-level Transaction Decisions", Transportation Research Board 101st Annual Meeting, 2022.
  7. J. Cheung, A. Sim, J. Kim, K. Wu, "Performance Prediction of Large Data Transfers", ACM/IEEE The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC21), ACM Student Research Competition (SRC).
  8. AutoGOLE/SENSE: End-to-End Network Services and Workflow Integration, International Conference for High Performance Computing, Networking, Storage and Analysis (SC’21), 2021.
  9. E. Copps, A. Sim, K. Wu, "Analyzing scientific data sharing patterns with in-network data caching", ACM Richard Tapia Celebration of Diversity in Computing (TAPIA 2021), ACM Student Research Competition (SRC), 2021.
  10. B. Weinger, A. Sim, K. Wu, J. Kim, "Enhancing IoT Anomaly Detection Performance for Federated Learning", International Conference for High Performance Computing, Networking, Storage, and Analysis (SC20), ACM Student Research Competition (SRC), 2020.
  11. B. Bard, C. Snavely, L. Gerhardt, J. Lee, B. Totzke, K. Antypas, S. Byna, R. Cheema, S. Cholia, M. Day, B, Enders, A, Gaur, A, Greiner, T. Groves, M. Kiran, Q. Koziol, K. Rowland, C, Samuel, A. Selvarajan, A. Sim, D. Skinner, R. Thomas, G. Torok, "The Superfacility project: automated pipelines for experiments and HPC", State of the Practice (SOP), International Conference for High Performance Computing, Networking, Storage, and Analysis (SC20), 2020.
  12. "AutoGOLE/SENSE SC20 Layer-2 Services", International Conference for High Performance Computing, Networking, Storage and Analysis (SC’20), 2020. https://www.youtube.com/watch?v=GvKLQVQ2dPs
  13. A. Sim, "Statistical Pattern Detection with Locally Exchangeable Measures", International Conference on Advanced Communications and Computation (INFOCOMP 2020), 2020.
  14. L. Jin, A. Lazar, J. Sears, A. Todd, A. Sim, K. Wu, C. A. Spurlock, Life Course as a Contextual System to Investigate the Effects of Life Events, Gender, and Generation on Travel Mode Use, Transportation Research Board (TRB) 99th Annual Meeting, 2020.
  15. B. Cetin, A. Lazar, J. Kim, A. Sim, K. Wu, "Federated Wireless Network Intrusion Detection", IEEE International Conference on Big Data (Big Data), 2019. doi:10.1109/BigData47090.2019.9005507
  16. SENSE: Intelligent Network Services for Science Workflows, International Conference for High Performance Computing, Networking, Storage and Analysis (SC'19), 2019.
  17. L. Jin, A. Lazar, J. Sears, A. Todd, A. Sim, K. Wu, C. A. Spurlock, "Life course as a contextual system to investigate the effects of life events, gender and generation on travel mode usage", the Behavior, Energy & Climate Change Conference (BECC), 2019.
  18. J. Balcas, H. Newman, M. Spiropulu, X. Yang, T. Lehman, I. Monga, C. Guok, J. MacAuley, A. Sim, P. Demar, "SDN for End-to-End Networking at Exascale", the 24th International Conference on Computing in High Energy and Nuclear Physics (CHEP), 2019.
  19. A. Ballow, A. Lazar, A. Sim, K. Wu, "Handling Missing Values in Joint Sequence Analysis", 2019 ACM Richard Tapia Celebration of Diversity in Computing (TAPIA), 2019. Won the First place in ACM Student Research Competition (SRC).
  20. O. Del Guercio, R. Orozco, A. Sim, K. Wu, "Multidimensional Compression and Pattern Matching", Data Compression Conference (DCC 2019), 2019. doi:10.1109/DCC.2019.00079
  21. A. Ballow, A. Lazar, A. Sim, K. Wu, "Joint Sequence Analysis Challenges: How to Handle Missing Values and Mixed Variable Types", SIAM Conference on Computational Science and Engineering (CSE19), 2019
  22. T. Leibengood, A. Lazar, A. Sim, K. Wu, "Network Traffic Performance Prediction with Multivariate Clusters in Time Windows", SIAM Conference on Computational Science and Engineering (CSE19), 2019.
  23. A. Lazar, K. Wu, A. Sim, "Predicting Network Traffic Using TCP Anomalies", IEEE International Conference on Big Data (Big Data), 2018.
  24. Global Petascale to Exascale Science Workflows, International Conference for High Performance Computing, Networking, Storage and Analysis (SC’18), 2018.
  25. K. Tu, A. Sim, K. Wu, "Identification of Network Data Transfer Bottlenecks in HPC Systems", International Conference for High Performance Computing, Networking, Storage and Analysis (SC'18), ACM Student Research Competition (SRC), 2018.
  26. J. Wang, A. Sim, K. Wu, S. Hwangbo, "Accurate Signal Timing from High Frequency Streaming Data", IEEE International Conference on Big Data (Big Data 2017), 2017.
  27. J. Wang, K. Wu, A. Sim, S. Hwangbo, "Feature Engineering and Classification Models for Partial Discharge Events in Power Transformers", 10th IEEE/ACM International Conference on Utility and Cloud Computing (UCC 2017), 2017.
  28. P. Harrington, W. Yoo, A. Sim, K. Wu, "Diagnosing Parallel I/O Bottlenecks in HPC Applications", International Conference for High Performance Computing, Networking, Storage and Analysis (SC'17), ACM Student Research Competition (SRC), 2017. Won the First place in ACM Student Research Competition (SRC).
  29. D. Lee, A. Sim, J. Choi, K. Wu, "Expanding Statistical Similarity Based Data Reduction to Capture Diverse Patterns", Data Compression Conference (DCC 2017), 2017.
  30. S. Fries, S. Ames, A. Sim, D. Williams, "HPSS Connections to ESGF: BASEJumper", Earth System Grid Federation (ESGF) Conference, 2016, 12/06/2016.
  31. J. Wang, W. Yoo, A. Sim, K. Wu, "Analysis of Variable Selection Methods on Scientific Cluster Measurement Data", International Conference for High Performance Computing, Networking, Storage and Analysis (SC'16), 2016. Won the Second place in ACM Student Research Competition (SRC).
  32. M. Bae, W. Yoo, A. Sim, K. Wu, "Discovering Energy Resource Usage Patterns on Scientific Clusters", International Conference for High Performance Computing, Networking, Storage and Analysis (SC'16), 2016. Won the Third place in ACM Student Research Competition (SRC).
  33. M. Bryson, S. Byna, A. Sim, K. Wu, "The Search for Missing Parallel IO Performance on the Cori Supercomputer", International Conference for High Performance Computing, Networking, Storage and Analysis (SC'16), ACM Student Research Competition (SRC), 2016. M.
  34. S. Fries, A. Sim, "HPSS connections to ESGF", Earth System Grid Federation Conference (ESGF 2015), 2015.
  35. M. Koo, W. Yoo, A. Sim, "I/O Performance Analysis Framework on Measurement Data from Scientific Clusters", ACM Student Research Poster Competition, Super Computing 2015, 2015.
  36. L. Wu, K. Wu, A. Sim, A. Stathopoulos, "Real-Time Outlier Detection Algorithm for Finding Blob-Filaments in Plasma", ACM Student Research Poster Competition, Super Computing 2014, 2014.
  37. D. Antoniades, K. Hu, A. Sim, C. Dovrolis, "What SNMP data can tell us about Edge-to-Edge network performance", Passive and Active Measurement Conference (PAM), 2013
  38. Climate100: Scaling the Earth System Grid to 100Gbps Networks, Supercomputing (Seattle, WA), 2011
  39. The Live Access Server and the Ferret-THREDDS Data Server: The visualization and analysis engine behind the Earth System Grid Center for Enabling Technologies, S. Hankin, et al., World Climate Research Programme (WCRP) 2011, 10/2011
  40. A data infrastructure for data-intensive climate research, D. Williams, et al. WCRP 2011, 10/2011
  41. D. Hasenkamp, A. Sim, M. Wehner, K. Wu, "Finding Tropical Cyclones on Clouds", Super Computing (New Orleans, LA), 2010. Won Third place in ACM Student Research Poster Competition.
  42. High Performance GridFTP Transport of Earth System Grid (ESG) Data, Super Computing Bandwidth Challenge (Portland, OR), 2009
  43. Uniform Grid Storage Access, Super Computing (Austin, TX), 2008
  44. Storage Resource Management: Grid Technology for Dynamic Storage Allocation and Uniform Access, Open Source Grid and Cluster Conference, 2008
  45. Uniform Storage Access for Grid Applications, Super Computing (Reno, NV), 2007
  46. Berkeley Storage Manager (BeStMan), Super Computing (Tampa, FL), 2006
  47. Open Science Grid SRM-Tester, Super Computing (Tampa, FL), 2006
  48. STAR Analysis Framework, Super Computing (Tampa, FL), 2006
  49. Large-Scale File Replication using DataMover Technology, Super Computing (Seattle, WA), 2005
  50. Berkeley SRM: LBNL implementation of v2.1.1, Super Computing (Seattle, WA), 2005
  51. STAR Analysis Framework and Open Science Grid SRM/DRM, Super Computing (Seattle, WA), 2005
  52. Open Science Grid SRM-TESTER, Super Computing (Seattle, WA), 2005
  53. Robust Terabyte-Scale Multi-file Replication Over Wide-Area Networks, Super Computing (Pittsburgh, PA), 2004
  54. The Earth System Grid, Super Computing (Pittsburgh, PA), 2004
  55. Large-scale file replication using DataMover technology, Super Computing (Phoenix, AZ), 2003
  56. Grid-interoperability of two different mass storage systems, Super Computing (Phoenix, AZ), 2003
  57. Uniform Grid Access to Different Mass Storage Systems: HPSS, Enstore, Jasmine, Super Computing (Baltimore, MD), 2002
  58. Robust File Replication of Massive Datasets on the Grid, Super Computing (Baltimore, MD), 2002
  59. GridFTP-HPSS Access Provided through HRM, Super Computing (Baltimore, MD), 2002
  60. Scientific Data Management: Middleware support for High-Level Requests to Distributed Data, Super Computing (Denver, CO), 2001
  61. Earth Systems Grid 2 with Community Authorization Server, Super Computing (Denver, CO), 2001
  62. Earth Systems Data Grid - A Data Management Infrastructure for Climate Modeling Research, Super Computing (Dallas, TX), 2000
  63. Globus in Earth Science Grid, the 9th IEEE International Symposium on High Performance Distributed Computing (Pittsburgh, PA), 2000
  64. STACS: Storage Access Coordination System for Processing Data from Tertiary Storage Systems, Super Computing (Portland, OR), 1999

Disclaimers
http://www.lbl.gov/~asim