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Alex Sim,SDD, Lawrence Berkeley National Laboratory
ASim@lbl.gov 510-600-3562 https://www.linkedin.com/in/alexsim/  

Conference papers
Journal articles and book chapters
Technical reports and others
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Conference papers
  1. C. Kim, A. Sim, K. Wu, H. Tang, Y. Son, J. Park, S. Kim, "AURORA-Q: Asynchronous Unified Resource Optimizer for Quantum Simulation on Leadership-Scale HPC System", IEEE International Conference on Distributed Computing Systems (ICDCS 2026), 2026.
  2. C. Kim, E. Sohn, S. Kim, A. Sim, K. Wu, H. Tang, Y. Son, S. Kim, "ScaleQsim: Highly Scalable Quantum Circuit Simulation Framework for Exascale HPC Systems", ACM SIGMETRICS 2026, in the Proceedings of the ACM on Measurement and Analysis of Computing Systems (POMACS), Vol. 9, No. 3, Article 62, 2026. doi:10.1145/3771577.
  3. V. Yakubovich, I. Sim, P. Kim, N. Monozon, J. Chung, A. Sim, K. Wu, "Time-series Forecasting for Network Utilization in Large-Scale Scientific Workflows", IEEE International Conference on Computing, Networking and Communications (ICNC 2026), 2026. Best paper award. doi:10.1109/ICNC68183.2026.11417004.
  4. M. Sudarshan, A. Sim, K. Wu, "Predicting Dataset Popularity for Improved Distributed Content Caching in High Energy Physics", IEEE International Conference on Computing, Networking and Communications (ICNC 2026), 2026. doi:10.1109/ICNC68183.2026.11416999.
  5. I. Mahmud, K. Wu, A. Sim, A. Mandal E. Deelman, "BBRv3 Startup Behavior: Analysis and Fairness Enhancements", IEEE International Conference on Computing, Networking and Communications (ICNC 2026), 2026. doi:10.1109/ICNC68183.2026.11416923.
  6. I. Mahmud, K. Wu, A. Sim, A. Mandal E. Deelman, "Validating TCP Behavior in DISTRI: A Comparison of Simulated and Real-World Network Performance for Distributed Computing", IEEE International Conference on Computing, Networking and Communications (ICNC 2026), 2026. doi:10.1109/ICNC68183.2026.11416891.
  7. V. K. Lakshminarayana, C. M. Oguchi, A. Sim, K. Wu, D. Ghosal, "A Study of Deterministic and Reliable Large-Scale Data Transfers in a Scientific Network", IEEE Military Communications Conference (MILCOM 2025), 2025. doi:10.1109/MILCOM64451.2025.11309880.
  8. A. Sim, E. Wang, R. Monga, K. Wu, C. Guok, I. Monga, D. Davila, F. Wurthwein, J. Balcas, H. Newman, "Comparing Cache Utilization Trends for Regional Data Caches", European Physical Journal (EPJ) Web of Conferences (CHEP 2024), Vol. 337, No. 01341, 2025. doi:10.1051/epjconf/202533701341.
  9. J. Aldrich, A. Sim, K. Wu, S. Yoo, H. Ito, V. Garonne, E. Lancon, "Exploring Data Caching Policy with Data Access Patterns from dCache Logs", European Physical Journal (EPJ) Web of Conferences (CHEP 2024), Vol. 337, No. 01340, 2025. doi:10.1051/epjconf/202533701340.
  10. S. Kim, S. Kim, C. Kim, A. Sim, K. Wu, H. Tang, "SWIFTN: Accelerating Quantum Circuit Simulation Through Tensor Optimization", 25th IEEE International Symposium on Cluster, Cloud, and Internet Computing (CCGrid 2025), 2025. doi:10.1109/CCGRID64434.2025.00022.
  11. J. Kim, A. Sim, K. Wu, J. Kim, "Improving Slow Transfer Predictions: Generative Methods Compared", IEEE International Conference on Computing, Networking and Communications (ICNC 2025), 2025. doi:10.1109/ICNC64010.2025.10994006.
  12. B. Fan, A. Sim, K. Wu, J. Kim, "Conditional Recurrent Neural Networks for Enhancing Throughput Prediction and Slow File Transfers Detection in Large Science Workflows", 22nd IEEE Consumer Communications & Networking Conference (CCNC 2025), 2025. doi:10.1109/CCNC54725.2025.10976138.
  13. B. Dong, A. Nayak, K. Wu, V. Tribaldos, J. Ajo-Franklin, Q. Zhang, S. Byna, F. Guo, P. Dobson, A. Sim, "TensorSearch: Parallel Similarity Search on Tensors", IEEE International Conference on Big Data (BigData), 2024. doi:10.1109/BigData62323.2024.10825798.
  14. M. Schreyer, T. Sattarov, A. Sim, K. Wu, "Imb-FinDiff: Conditional Diffusion Models for Class Imbalance Synthesis of Financial Tabular Data", 5th ACM International Conference on AI in Finance (ICAIF2024), 2024. doi:10.1145/3677052.3698659
  15. V. Lakshminarayana, C. Oguchi, A. Sim, K. Wu, D. Ghosal, "A Study of a Deterministic Networking Framework for Latency Critical Large Scientific Data Transfers", 11th Annual International Workshop on Innovating the Network for Data-Intensive Science (INDIS 2024), 2024. doi:10.1109/SCW63240.2024.00110.
  16. D.K. Sung, Y. Son, A. Sim, K. Wu, S. Byna, H. Tang, H. Eom, C. Kim, S. Kim, "A2FL: Autonomous and Adaptive File Layout in HPC through Real-time Access Pattern Analysis", 38th IEEE International Parallel & Distributed Processing Symposium (IPDPS2024), 2024. doi:10.1109/IPDPS57955.2024.00051.
  17. L. Zhou, Q. Lin, K. Chowdhury, S. Masood, A. Eichenberger, H. Min, A. Sim, J. Wang, Y. Wang, K. Wu, B. Yuan, J. Zou, "Serving Deep Learning Model in Relational Databases", 27th International Conference on Extending Database Technology (EDBT2024), 2024. doi:10.48786/edbt.2024.61.
  18. A. Sharma, X. Li, H. Guan, G. Sun, L. Zhang, L. Wang, K. Wu, L. Cao, E. Zhu, A. Sim, T. Wu, J. Zou, "Automatic Data Transformation Using Large Language Model – An Experimental Study on Building Energy Data", IEEE International Conference on Big Data (BigData), 2023. doi:10.1109/bigdata59044.2023.10386931.
  19. C. M. Oguchi, D. Ghosal, A. Sim, K. Wu, "Counterfactual Analysis: A Case Study on Impact of External Events on Building Energy Consumption", International Workshop on Big Data Analytics for Sustainability (BDA4S), 2023. doi:10.1109/bigdata59044.2023.10386631.
  20. E. Kissel, A. Sim, C. Guok, "Experiences in deploying in-network data caches", 26th International Conference on Computing in High Energy & Nuclear Physics (CHEP 2023), 2023.
  21. J. Bellavita, C. Sim, K. Wu, A. Sim, S. Yoo, H. Ito, V. Garonne, E. Lancon, "Understanding Data Access Patterns for dCache System", 26th International Conference on Computing in High Energy & Nuclear Physics (CHEP 2023), 2023.
  22. C. Sim, K. Wu, A. Sim, I. Monga, C. Guok, F. Wurthwein, D. Davila, H. Newman, J. Balcas, "Predicting Resource Usage Trends with Southern California Petabyte Scale Cache", 26th International Conference on Computing in High Energy & Nuclear Physics (CHEP 2023), 2023.
  23. E. Kissel, A. Sim, C. Guok, "Experiences in deploying in-network data caches", 26th International Conference on Computing in High Energy & Nuclear Physics (CHEP 2023), 2023.
  24. C. Sim, K. Wu, A. Sim, I. Monga, C. Guok, F. Wurthwein, D. Davila, H. Newman, J. Balcas, "Effectiveness and predictability of in-network storage cache for Scientific Workflows", International Conference on Computing, Networking and Communication (ICNC 2023), 2023.
  25. H-C. Yang, L. Jin, A. Lazar, A. Todd-Blick, A. Sim, K. Wu, Q. Chen, C. A. Spurlock, "Gender Gaps in Mode Usage, Vehicle Ownership, and Spatial Mobility When Entering Parenthood: A Life Course Perspective", Transportation Research Board 102nd Annual Meeting,, 2023.
  26. R. Han, A. Sim, K. Wu, I. Monga, C. Guok, F. Würthwein, D. Davila, J. Balcas, H. Newman, "Access Trends of In-network Cache for Scientific Data", 5th ACM International Workshop on System and Network Telemetry and Analysis (SNTA2022), 2022. doi:10.1145/3526064.3534110. http://arxiv.org/abs/2205.05563.
  27. J. Bellavita, A. Sim, K. Wu, I. Monga, C. Guok, F. Würthwein, D. Davila, "Studying Scientific Data Lifecycle in On-demand Distributed Storage Caches", 5th ACM International Workshop on System and Network Telemetry and Analysis (SNTA2022), 2022. doi:10.1145/3526064.3534111. http://arxiv.org/abs/2205.05598.
  28. R. Shao, J. Kim A. Sim, K. Wu, "Predicting Slow Connections in Scientific Computing", 5th ACM International Workshop on System and Network Telemetry and Analysis (SNTA2022), 2022. doi:10.1145/3526064.3534112.
  29. Y. Ma, F. Rusu, K. Wu, A. Sim, "Adaptive Optimization for Sparse Data on Heterogeneous GPUs", 4th Workshop on Scalable Deep Learning over Parallel And Distributed Infrastructures (ScaDL 2022), in conjunction with the 36th IEEE International Parallel & Distributed Processing Symposium, 2022.
  30. K. Wang, S. Lee, J. Balewski, A. Sim, P. Nugent, A. Agrawal, A. Choudhary, K. Wu, W-K. Liao, "Using Multi-resolution Data to Accelerate Neural Network Training in Scientific Applications", 22nd IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGrid 2022), 2022.
  31. S. Lee, Q. Kang, K. Wang, J. Balewski, A. Sim, A. Agrawal, A. Choudhary, P. Nugent, K. Wu, W-K. Liao, "Asynchronous I/O Strategy for Large-Scale Deep Learning Applications", IEEE International Conference on High Performance Computing, Data & Analytics (HiPC2021) 2021. doi:10.1109/HiPC53243.2021.00046.
  32. J. Bang, C. Kim, K. Wu, A. Sim, S. Byna, H. Sung, H. Eom, "An In-Depth I/O Pattern Analysis in HPC Systems", IEEE International Conference on High Performance Computing, Data & Analytics (HiPC2021) 2021. doi:10.1109/HiPC53243.2021.00056.
  33. A. Lazar, L. Jin, C. Brown, C. A. Spurlock, A. Sim, K. Wu, "Performance of the Gold Standard and Machine Learning in Predicting Vehicle Transactions", the 3rd International Workshop on Big Data Tools, Methods, and Use Cases for Innovative Scientific Discovery (BTSD 2021), 2021. doi:10.1109/BigData52589.2021.9671286.
  34. E. Copps, H. Zhang, A. Sim, K. Wu, I. Monga, C. Guok, F. Würthwein, D. Davila, E. Fajardo, "Analyzing scientific data sharing patterns with in-network data caching", 4th ACM International Workshop on System and Network Telemetry and Analysis (SNTA 2021), 2021. doi:10.1145/3452411.3464441.
  35. Y. Wang, K. Wu, A. Sim, S. Yoo, S. Misawa, "Access Patterns of Disk Cache for Large Scientific Archive", 4th ACM International Workshop on System and Network Telemetry and Analysis (SNTA 2021), 2021. doi:10.1145/3452411.3464444.
  36. A. Lazar, A. Sim, K. Wu, "GPU-based Classification for Wireless Intrusion Detection", 4th ACM International Workshop on System and Network Telemetry and Analysis (SNTA 2021), 2021. doi:10.1145/3452411.3464445.
  37. Y. Ma, F. Ruso, A. Sim, K. Wu, "Adaptive Stochastic Gradient Descent for Deep Learning on Heterogeneous CPU+GPU Architectures", Heterogeneity in Computing Workshop (HCW 2021), in conjunction with the 35th IEEE International Parallel & Distributed Processing Symposium (IPDPS), 2021. doi:10.1109/IPDPSW52791.2021.00012
  38. B. Cho, T. Dayrit, Y. Gao, Z. Wang, T. Hong, A. Sim, K. Wu,"Effective Missing Value Imputation Methods for Building Monitoring Data", The 2nd International Workshop on Big Data Tools, Methods, and Use Cases for Innovative Scientific Discovery (BTSD 2020) in conjunction with IEEE International Conference on Big Data (IEEE BigData 2020), 2020. doi:10.1109/BigData50022.2020.9378230
  39. J. Kim, A. Sim, J. Kim, K. Wu, "Botnets Detection Using Recurrent Variational Autoencoder", IEEE Global Communications Conference (Globecom 2020), 2020. doi:10.1109/GLOBECOM42002.2020.9348169
  40. B. Weinger, J. Kim, A. Sim, M. Nakashima, N. Moustafa, K. Wu, "Enhancing IoT Anomaly Detection Performance for Federated Learning", The 16th International Conference on Mobility, Sensing and Networking (MSN2020), 2020. doi:10.1109/MSN50589.2020.00045
  41. B. Enders, D. Bard, C. Snavely, L. Gerhardt, J. Lee, B. Totzke, K. Antypas, S. Byna, R. Cheema, S. Cholia, M. Day, A. Gaur, A. Greiner, T. Groves, M. Kiran, Q. Koziol, K. Rowland, C. Samuel, A. Selvarajan, A. Sim, D. Skinner, R. Thomas, G. Torok, "ross-facility science with the Superfacility Project at LBNL", 2nd Workshop on Large-scale Experiment-in-the-Loop Computing (XLOOP 2020), in conjunction with the International Conference for High Performance Computing, Networking, Storage, and Analysis (SC 20), 2020. doi:10.1109/XLOOP51963.2020.00006.
  42. G. R. Ghosal, D. Ghosal, A. Sim, A. V. Thakur, K. Wu, "A Deep Deterministic Policy Gradient Based Network Scheduler For Deadline-Driven Data Transfers", International Federation for Information Processing (IFIP) Networking Conference (NETWORKING 2020), 2020.
  43. S. Kim, A. Sim, K. Wu, S. Byna, Y. Son, H. Eom, "Towards HPC I/O performance prediction through large- scale log analysis", ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC 2020), 2020. doi:10.1145/3369583.3392678
  44. J. Kim, A. Sim, J. Kim, K. Wu, J. Hahm, "Transfer Learning Approach for Botnet Detection based on Recurrent Variational Autoencoder", ACM International Workshop on System and Network Telemetry and Analysis (SNTA) 2020, in conjunction with The 29th ACM International Symposium on High- Performance Parallel and Distributed Computing (HPDC) 2020. doi:10.1145/3391812.3396273
  45. M. Nakashima, A. Sim, J. Kim, "Evaluation of Deep Learning Models for Network PerformancePrediction for Scientific Facilities", ACM International Workshop on System and Network Telemetry and Analysis (SNTA) 2020, in conjunction with The 29th ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC) 2020. doi:10.1145/3391812.3396272
  46. J. Bang, C. Kim, K. Wu, A. Sim, S. Byna, S. Kim, H. Eom, "HPC Workload Characterization using Feature Selection and Clustering", ACM International Workshop on System and Network Telemetry and Analysis (SNTA) 2020, in conjunction with The 29th ACM International Symposium on High- Performance Parallel and Distributed Computing (HPDC) 2020. doi:10.1145/3391812.3396270
  47. S. Bhandari, A. K. Kukreja, A. Lazar, A. Sim, K. Wu, "Feature Selection and Tree-based Classification for Wireless Intrusion Detection", ACM International Workshop on System and Network Telemetry and Analysis (SNTA) 2020, in conjunction with The 29th ACM International Symposium on High- Performance Parallel and Distributed Computing (HPDC) 2020. doi:10.1145/3391812.3396274
  48. Q. Kang, A. Sim, P. Nugent, S. Lee, W.K. Liao, A, Agrawal, A. Choudhary, K. Wu, "Predicting Resource Requirement in Intermediate Palomar Transient Factory Workflow", the 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGrid 2020), 2020
  49. H. Sung, J. Bang, C. Kim, H. Kim, A. Sim, G. K. Lockwood, H. Eom, "BBOS: Efficient HPC Storage Management via Burst Buffer Over-Subscription", the 20th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGrid 2020), 2020
  50. Q. Kang, A. Agrawal, A. Choudhary, A. Sim, K. Wu, R. Kettimuthu, P. Beckman, Z. Liu, W-K Liao, "Spatiotemporal Real-Time Anomaly Detection for Supercomputing Systems", Workshop on Big Data Predictive Maintenance using Artificial Intelligence, in conjunction with IEEE International Conference on Big Data (Big Data), 2019. doi:10.1109/BigData47090.2019.9006046
  51. A Lazar, A. Ballow, L. Jin, C. A. Spurlock, A. Sim, K. Wu, "Machine Learning for Prediction of Mid to LongTerm Habitual Transportation Mode Use", Workshop for BTSD, in conjunction with the IEEE International Conference on Big Data (Big Data), 2019. doi:10.1109/BigData47090.2019.9006411
  52. D. Ghosal, S. Shukla, A. Sim, A. V. Thakur, K. Wu, "A Reinforcement Learning Based Network Scheduler For Deadline-Driven Data Transfers", IEEE Global Communications Conference (GLOBECOM 2019), 2019. doi:10.1109/GLOBECOM38437.2019.9013255
  53. A. Syal, A. Lazar, J. Kim, K. Wu, A. Sim, "Automatic Detection of Network Traffic Anomalies and Changes", the 2nd International Workshop on Systems and Network Telemetry and Analytics (SNTA 2019), in conjunction with ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC 2019), 2019. doi:10.1145/3322798.3329255
  54. M. jin, Y. Homma, A. Sim, W. Kroeger, K. Wu, "Performance Prediction for Data Transfers in LCLS Workflow", the 2nd International Workshop on Systems and Network Telemetry and Analytics (SNTA 2019), in conjunction with ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC 2019), 2019. doi:10.1145/3322798.3329254
  55. O. Del Guercio, R. Orozco, A. Sim, K. Wu, "Similarity-based Compression with Multidimensional Pattern Matching", the 2nd International Workshop on Systems and Network Telemetry and Analytics (SNTA 2019), in conjunction with ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC 2019), 2019. doi:10.1145/3322798.3329252
  56. H. Sung, J. Bang, A. Sim, K. Wu, H. Eom, "Understanding Parallel I/O Performance Trends Under Various HPC Configurations", the 2nd International Workshop on Systems and Network Telemetry and Analytics (SNTA 2019), in conjunction with ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC 2019), 2019. doi:10.1145/3322798.3329258
  57. S. Shukla, D. Ghosal, K. Wu, A. Sim, M. Farrens, "Co-optimizing Latency and Energy for IoT services using HMP servers in Fog Clusters", the Fourth IEEE International Conference on Fog and Mobile Edge Computing (FMEC 2019), 2019. :10.1109/FMEC.2019.8795353
  58. S. Kim, A. Sim, K. Wu, S. Byna, T. Wang, Y. Son, H. Eom, "DCA-IO: A Dynamic I/O Control Scheme for Parallel and Distributed File System", 19th Annual IEEE/ACM International Symposium in Cluster, Cloud, and Grid Computing (CCGrid 2019), 2019. doi:10.1109/CCGRID.2019.00049
  59. T. Shachaf, A. Sim, K. Wu, W. Kroeger, "Detecting Anomalies in the LCLS Workflow", 3rd workshop on Open Science in Big Data (OSBD 2018), in conjunction with IEEE International Conference on Big Data, 2018. doi:10.1109/bigdata.2018.8622334
  60. K. Gibson, D. Lee, J. Choi, A. Sim, "Dynamic Online Performance Optimization in Streaming Data Compression", IEEE International Conference on Big Data (Big Data), 2018. doi:10.1109/bigdata.2018.8621867
  61. I. Monga, C. Guok, J. MacAuley, A. Sim, H. Newman, J. Balcas, P. DeMar, L. Winkler, T. Lehman, X. Yang, "SDN for End-to-end Networked Science at the Exascale (SENSE)", Innovate the Network for Data-Intensive Science Workshop (INDIS 2018), in conjunction with the International Conference for High Performance Computing, Networking, Storage, and Analysis (SC'18), 2018. doi:10.1109/INDIS.2018.00007
  62. S. Balasubramanian, D. Ghosal, K. N. Balasubramanian, E. Pouyoul, A. Sim, K. Wu, B. Tierney, "Auto-tuned Publisher in a Pub/Sub System: Design and Performance Evaluation", the 15th IEEE International Conference on Autonomic Computing (ICAC 2018), 2018. doi:10.1109/icac.2018.00012
  63. J. Wang, K. Wu, A. Sim, S. Hwangbo, "Feature Engineering and Classification Models for Partial Discharge in Power Transformers", Joint Workshop on Deep Learning for Safety-Critical in Engineering Systems (DISE1), in conjunction with ICML, AAMAS, IJCAI, and ECAI 2018.
  64. J. Kim, J. Choi, A. Sim, "Spatio-temporal Analysis of HPC I/O and Connection Data", International Workshop on Scalable Network Traffic Analytics (SNTA 2018), 2018, in conjunction with the 38th IEEE International Conference on Distributed Computing Systems (ICDCS 2018). doi:10.1109/icdcs.2018.00176
  65. C. Dao, X. Liu, J. Jiang, A. Sim, C. E. Tull, K. Wu, "Modeling Data Transfers: Change Point and Anomaly Detection", International Workshop on Scalable Network Traffic Analytics (SNTA 2018), 2018, in conjunction with the 38th IEEE International Conference on Distributed Computing Systems (ICDCS 2018). doi:10.1109/icdcs.2018.00177
  66. R. Kettimuthu, Z. Liu, I. Foster, P. Beckman, A. Sim, K. Wu, W. Liao, Q. Kang, A. Agrawal, A. Choudhary, "Towards Autonomic Science Infrastructure: Architecture, Limitations, and Open Issues", Workshop in Autonomous Infrastructure for Science (AI-Science 2018), 2018, in conjunction with the 27th International Symposium on High-Performance Parallel and Distributed Computing (ACM HPDC 2018). doi:10.1145/3217197.3217205.
  67. M. Yang, X. Liu, W. Kroeger, A. Sim, K. Wu, "Identifying Anomalous File Transfer Events in LCLS Workflow", Workshop in Autonomous Infrastructure for Science (AI-Science 2018), 2018, in conjunction with the 27th International Symposium on High-Performance Parallel and Distributed Computing (ACM HPDC 2018). doi:10.1145/3217197.3217203.
  68. A. Lazar, L. Jin, A. Spurlock, A. Todd, K. Wu, A. Sim, "Data Quality Challenges with Missing Values and Mixed Types in Joint Sequence Analysis", Workshop in Data Quality Issues in Big Data and Machine Learning Applications: Going Beyond Data Cleaning and Transformations, in conjunction with the 2017 IEEE International Conference on Big Data (Big Data 2017).
  69. J. Wang, K. Wu, A. Sim, S. Hwangbo, "Convolutional Filtering for Accurate Signal Timing from Noisy Streaming Data", 3rd IEEE International Conference on Big Data Intelligence and Computing (DataCom2017), 2017.
  70. K. Wu, D. Lee, A. Sim, J. Choi, "Statistical Data Reduction for Streaming Data", New York Scientific Data Summit (NYSDS), Data-Driven Discovery in Science and Industry, 2017
  71. J. Kim, A. Sim, "A New Approach to Online, Multivariate Network Traffic Analysis", 2nd Workshop on Network Security Analytics and Automation (NSAA), in conjunction with the 26th International Conference on Computer Communications and Networks (ICCCN 2017), 2017
  72. D. Lee, A. Sim, J. Choi, K. Wu, "Improving Statistical Similarity Based Data Reduction for Non-Stationary Data", 29th International Conference on Scientific and Statistical Database Management (SSDBM2017), 2017
  73. J. Wang, W. Yoo, A. Sim, P. Nugent, K. Wu, "Parallel Variable Selection for Effective Performance Prediction", the 17th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid2017), 2017
  74. L. Jin, S. Lee, A. Sim, A. Borgeson, K. Wu, A. Spurlock, A. Todd, "Comparison of Clustering Techniques for Residential Energy Behavior using Smart Meter Data", 2nd International Workshop on Artificial Intelligence for Smart Grids and Smart Buildings (AISGSB2017), In conjunction with AAAI 2017, 2017.
  75. J. Kim, A. Sim, S.C. Suh, I. Kim, "An Approach to Online Network Monitoring Using Clustered Patterns", International Conference on Computing, Networking and Communications (ICNC 2017), 2017.
  76. 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.
  77. D. Lee, A. Sim, J. Choi, K. Wu, "Novel Data Reduction Based on Statistical Similarity", the 28th International Conference on Scientific and Statistical Database Management (SSDBM2016), doi:10.1145/2949689.2949708, 2016. http://dl.acm.org/citation.cfm?id=2949708.
  78. W. Yoo, B. Foster, A. Sim, K. Wu, "Machine Learning Based Job Status Prediction in Scientific Clusters", IEEE SAI Computing Conference, pp 44-53, 2016, doi:10.1109/SAI.2016.7555961, http://ieeexplore.ieee.org/document/7555961.
  79. D. Pugmire, J. Kress, H. Childs, M. Wolf, G. Eisenhauer, J. Low, R. M. Churchill, T. Kurc, K. Wu, A. Sim, J. Gu, J. Choi, S. Klasky, "Visualization and Analysis for Near-Real-Time Decision Making in Distributed Workflows", High Performance Data Analysis and Visualization (HPDAV2016), in conjunction with the 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2016), doi:10.1109/IPDPSW.2016.175, 2016.
  80. T. Kim, D. Lee, J. Choi, A. Spurlock, A. Sim, A. Todd, K. Wu, "Extracting Baseline Electricity Usage Using Gradient Tree Boosting", International Conference on Big Data Intelligence and Computing (DataCom 2015), 2015, Best Paper Award
  81. 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
  82. S. Shannigrahi, A. J. Barczyk, C. Papadopoulos, A. Sim, I. Monga, H. Newman, K. Wu, E. Yeh, "Named Data Networking in Climate Research and HEP Applications", the 21st International Conference on Computing in High Energy and Nuclear Physics (CHEP2015), 2015
  83. W. Yoo, A. Sim, "Network Bandwidth Utilization Forecast Model on High Bandwidth Networks", IEEE International Conference on Computing, Networking and Communications (ICNC'15), 2015. doi:10.1109/ICCNC.2015.7069393.
  84. W. Yoo, A. Sim, "Efficient Changing Pattern Detection on High Bandwidth Network Measurements", 7th International Conference on Grid and Distributed Computing (GDC 2014), 2014
  85. L. Wu, K. Wu, A. Sim, M. Churchill, J. Y. Choi, A. Stathopoulos, CS Chang, S. Klasky, "High-Performance Outlier Detection Algorithm for Finding Blob-Filaments in Plasma", 5th International Workshop on Big Data Analytics: Challenges, and Opportunities (BDAC'14), 2014
  86. A. L. Chervenak, A. Sim, J. Gu, R. Schuler, N. Hirpathak, "Adaptation and Policy-Based Resource Allocation for Efficient Bulk Data Transfers in High Performance Computing Environments", 4th International Workshop on Network-aware Data Management (NDM'14), 2014
  87. A. L. Chervenak, A. Sim, J. Gu, R. Schuler, N. Hirpathak, "Efficient Data Staging Using Performance-Based Adaptation and Policy-Based Resource Allocation", the 22nd Euromicro International Conference on Parallel, Distributed and Network-based Processing, 2014
  88. J. Y. Choi, K. Wu, J. C. Wu, A. Sim, Q. G. Liu, M. Wolf, CS Chang, S. Klasky, "ICEE: Wide-area In Transit Data Processing Framework For Near Real-Time Scientific Applications", The 4th International Workshop on Big Data Analytics: Challenges and Opportunities (BDAC-13), 2013.
  89. K. Hu, A. Sim, D. Antoniades, C. Dovrolis, "Estimating and Forecasting Network Traffic Performance based on Statistical Patterns Observed in SNMP data", the 9th International Conference on Machine Learning and Data Mining (MLDM), 2013
  90. 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), 20131
  91. J. Gu, D. Smith, A. L. Chervenak, A. Sim, "Adaptive Data Transfers that Utilize Policies for Resource Sharing", the 2nd International Workshop on Network-Aware Data Management Workshop (NDM2012), 2012
  92. B. Ma, A. Shoshani, A. Sim, K. Wu, Y. Byun, J. Hahm, M-S. Shin, "Efficient Attribute-based Data Access in Astronomy Analysis", the 2nd International Workshop on Network-Aware Data Management Workshop (NDM2012), 2012
  93. M. Balman, E. Pouyoul, Y. Yao, E. W. Bethel, B. Loring, Prabhat, J. Shalf, A. Sim, B. L. Tierney, "Experiences with 100Gbps Network Applications", the Fifth International Workshop on Data Intensive Distributed Computing (DIDC 2012), 2012
  94. Junmin Gu, Dimitrios Katramatos, Xin Liu, Vijaya Natarajan, Arie Shoshani, Alex Sim, Dantong Yu, Scott Bradley, Shawn McKee, "StorNet: Co-Scheduling of End-to-End Bandwidth Reservation on Storage and Network Systems for High Performance Data Transfers", Proceedings of IEEE INFOCOM HSN 2011, Shanghai China, 2011
  95. D. Williams, A. Shoshani, A. Sim, et al., "Earth System Grid Center for Enabling Technologies (ESG-CET): A Data Infrastructure for Data-Intensive Climate Research", SciDAC Conference 2011, 7/2011.
  96. D. Hasenkamp, A. Sim, M. Wehner, K. Wu, "Finding Tropical Cyclones on a Cloud Computing Cluster: Using Parallel Virtualization for Large-Scale Climate Simulation Analysis", the 2nd IEEE International Conference on Cloud Computing Technology and Science (CloudCom2010), 2010
  97. Mehmet Balman, Evangelos Chaniotakis, Arie Shoshani, Alex Sim, "A Flexible Reservation Algorithm for Advance Network Provisioning", Supercomputing 2010, 2010
  98. A. Sim, M. Balman, D. Williams, A. Shoshani, V. Natarajan, "Adaptive Transfer Adjustment in Efficient Bulk Data Transfer Management for Climate Datasets", the 22nd International Conference on Parallel and Distributed Computing and Systems (PDCS 2010), 2010
  99. G Garzoglio, J Bester, K Chadwick, D Dykstra, D Groep, J Gu, T Hesselroth, O Koeroo, T Levshina, S Martin, M Salle, N Sharma, F Siebenlist, A Sim, A Verstegen, "Adoption of a SAML-XACML Profile for Authorization Interoperability across Grid Middleware in OSG and EGEE", the 18th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2010), 2010
  100. Junmin Gu, Dimitrios Katramatos, Xin Liu, Vijaya Natarajan, Arie Shoshani, Alex Sim, Dantong Yu, Scott Bradley, Shawn McKee, "StorNet: Integrated Dynamic Storage and Network Resource Provisioning and Management for Automated Data Transfers", the 18th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2010), Taipei Taiwan, 2010
  101. A. Sim, D. Gunter, V. Natarajan, A. Shoshani, D. Williams, J. Long, J. Hick, J. Lee, E. Dart, "Efficient Bulk Data Replication for the Earth System Grid", International Symposium on Grid Computing, Data Driven e-Science: Use Cases and Successful Applications of Distributed Computing Infrastructures (ISGC 2010), 2010
  102. G. Attebury, A. Baranovski, K. Bloom, B. Bockelman, D. Kcira, J. Letts, T. Levshina, C. Lundestedt, T. Martin, W. Maier, H. Pi, A. Rana, I. Sfiligoi, A. Sim, M. Thomas, F. Wurthwein, "Roadmap for Applying Hadoop Distributed File System in Scientific Grid Computing", International Symposium on Grid Computing (ISGC), 2010
  103. R. Kettimuthu, A. Sim, D. Gunter, B. Allcock, P. Bremer, J. Bresnahan, A. Cherry, L. Childers, E. Dart, I. Foster, K. Harms, J. Hick, J. Lee, M. Link, J. Long, K. Miller, V. Natarajan, V. Pascucci, K. Raffenetti, D. Ressman, D. Williams, L. Wilson, L. Winkler, "Lessons learned from moving Earth System Grid data sets over a 20 Gbps wide-area network", the 19th ACM International Symposium on High Performance Distributed Computing (HPDC), 2010
  104. Julian Cummings, Jay Lofstead, Karsten Schwan, Alexander Sim, Arie Shoshani, Ciprian Docan, Manish Parashar, Scott Klasky, Norbert Podhorszki, Roselyne Barreto, "EFFIS: An End-to-end Framework for Fusion Integrated Simulation", 18th Euromicro Conference on Parallel, Distributed, and Network-Based Processing, pp. 428-434, 2010
  105. G. Attebury, A. Baranovski, K. Bloom, B. Bockelman, D. Kcira, J. Letts, T. Levshina, C. Lundestedt, T. Martin, W. Maier, H. Pi, A. Rana, I. Sfiligoi, A. Sim, M. Thomas, F. Würthwein, "Hadoop Distributed File System for the Grid", the IEEE Nuclear Science Symposium 2009
  106. K. Wu, S. Ahern, E. W. Bethel, J, Chen, H, Childs, E, Cormier-Michel, C, Geddes, J, Gu, H, Hagen, B. Hamann, W. Koegler, J. Lauret, J. Meredith, P. Messmer, E. Otoo, V. Perevoztchikov, A. Poskanzer, Prabhat, O. Rubel, A. Shoshani, A. Sim, K. Stockinger, G. Weber, W. Zhang, "FastBit: Interactively Searching Massive Data", SciDAC conference (LBNL-2164E), 2009
  107. M. Nagappan, M. Vouk, K. Wu, A. Sim and A. Shoshani, "Efficient Operational Profiling of Systems using Suffix Arrays on Execution Logs", the 19th International Symposium on Software Reliability Engineering (ISSRE), 2008
  108. D. N. Williams, R. Ananthakrishnan, D. E. Bernholdt, A. Shoshani, A. Sim, et.al, "Data Management and Analysis for the Earth System Grid", SciDAC Conference, doi:10.1088/1742-6596/125/1/012072, 2008
  109. W. Betts, L. Didenko, T. Freeman, P. Jakl, L. Hajdu, E. Hjort, K. Keahey, J. Lauret, D. Olson, A. Rose, I. Sakrejda, A. Sim, "STAR Grid Activities, OSG and Beyond", International Symposium on Grid Computing (ISGC), 2008
  110. L. Abadie, P. Badino , J. Baud ,E. Corso , M. Crawford , S. De Witt , F. Donno , A. Forti , P. Fuhrmann , G. Grosdidier, J. Gu , J. Jensen, S. Lemaitre , M. Litmaath, D. Litvinsev, G. Lo Presti , L. Magnoni, T. Mkrtchan, A. Moibenko, V. Natarajan, G. Oleynik, T. Perelmutov, D. Petravick, A. Shoshani, A. Sim, M. Sponza, R. Zappi, "Storage Resource Managers: Recent International Experience on Requirements and Multiple Co-Operating Implementations", the 24th IEEE Conference on Mass Storage Systems and Technologies, 2007
  111. R Ananthakrishnan, D E Bernholdt, S Bharathi, D Brown, M Chen, A L Chervenak, L Cinquini, R Drach, I T Foster, P Fox, D Fraser, K Halliday, S Hankin, P Jones, C Kesselman, D E Middleton, J Schwidder, R Schweitzer, R Schuler, A Shoshani, F Siebenlist, A Sim, W G Strand, N Wilhelmi, M Su, D N Williams, "Building a global federation system for climate change research: the earth system grid center for enabling technologies (ESG-CET)", Proceedings of SciDAC 2007 Conference, June 2007.
  112. F. Donno, L. Abadie, P. Badino, J. Baud, E. Corso, M. Crawford, S. De Witt, A. Forti, P. Fuhrmann, G. Grosdidier, J. Gu , J. Jensen, S. Lemaitre, M. Litmaath, D. Litvinsev, G. Lo Presti, L. Magnoni, T. Mkrtchan, A. Moibenko, V. Natarajan, G. Oleynik, T. Perelmutov, D. Petravick, A. Shoshani, A. Sim, M. Sponza, R. Zappi, "Storage Resource Manager version 2.2: design, implementation, and testing experience", Proceedings of Computing in High Energy Physics, 2007
  113. P. Jakl, J. Lauret, A. Hanushevky, A. Romosan, A. Shoshani, A. Sim, "Grid data storage on widely distributed worker nodes using Scalla and SRM", Computing in High Energy Physics, 2007
  114. D. E. Middleton, D. E. Bernholdt, D. Brown, M. Chen, A. L. Chervenak, L. Cinquini, R. Drach, P. Fox, P. Jones, C. Kesselman, I. T. Foster, V. Nefedova, A. Shoshani, A. Sim, W. G. Strand and D. Williams, "Enabling worldwide access to climate simulation data: the earth system grid (ESG)", Scientific Discovery Through Advanced Computing (SciDAC 2006), June 2006.
  115. P. Jakl, J. Lauret, A. Hanushevky, A. Shoshani, A. Sim, "From rootd to Xrootd, from physical to logical files: experience on accessing and managing distributed data", Computing in High Energy Physics, 2006
  116. E. Hjort, L. Hajdu, J. Lauret, D. Olson, A. Sim, A. Shoshani, "Data and Computational Grid Coupling in RHIC/STAR – An Analysis Scenario using SRM Technology", Computing in High Energy Physics, 2006
  117. A. Shoshani, A. Sim, K. Stockinger, "RRS: Replica Registration Service for Data Grids", Lecture Notes in Computer Science, Edited by Jean-Marc Pierson, Springer-Verlag GmbH Publisher, Volume 3836, Dec 2006, Pages 100-112
  118. Kesheng Wu, Junmin Gu, Jerome Lauret, Arthur M. Poskanzer, Arie Shoshani, Alexander Sim, and Wei-Ming Zhang, "Grid Collector: Facilitating Efficient Selective Access from Data Grids", International Supercomputer Conference 2005, Heidelberg, Germany. [LBNL-57677]
  119. A. Shoshani, A. Sim, K. Stockinger, "RRS: Replica Registration Service for Data Grids", International Workshop on Data Management in Grids, 2005
  120. Alex Sim, Junmin Gu, Arie Shoshani, Vijaya Natarajan, "DataMover: Robust Terabytes-Scale Multi-file Replication over Wide-Area Networks", the 16th International Conference on Scientific and Statistical Database Management (SSDBM 2004), Greece, 2004
  121. Eric Hjort, Doug Olson, Jerome Lauret, Arie Shoshani, Alex Sim, "Production mode Data-Replication framework in STAR using the HRM Grid middleware", Computing in High Energy Physics, 2004
  122. A. Sim, J. Gu, A. Shoshani, E. Hjort, D. Olson, "Experience with Deploying Storage Resource Managers to Achieve Robust File Replication", Computing in High Energy Physics (San Diego, CA), 2003
  123. D. Yu, J. Lauret, A. Shoshani, D. Oldon, E. Hjort, A. Sim, "The Design of High Performance Data Replication in the Grid Environment for the STAR Collaboration", Computing in High Energy Physics (San Diego, CA), 2003
  124. K. Wu, W. Zhang, A. Sim, J. Gu and A. Shoshani, "Grid Collector: an Event Catalog with Automated File Management", IEEE Nuclear Science Symposium 2003
  125. Arie Shoshani, Alex Sim, Junmin Gu, "Storage Resource Managers: Essential Components for Grid Applications", Globus World (San Diego, CA) 2003
  126. L. Pouchard, L. Cinquini, B. Drach, D. Middleton, D. Bernholdt, K. Chanchio, I. Foster, V. Nefedova, D. Brown, P. Fox, J. Garcia, G. Strand, D. Williams, A. Chervenak, C. Kesselman, A. Shoshani, A. Sim, "An Ontology for Scientific Information in a Grid Environment: the Earth System Grid", Symposium on Cluster Computing and the Grid (Tokyo, Japan), 2003
  127. A. Shoshani, A. Sim, and J. Gu, "Storage Resource Managers: Middleware components for Grid Storage", Nineteenth IEEE Symposium on Mass Storage Systems (College Park, MD), 2002
  128. B. Allcock, I. Foster, V. Nefedova, A. Chervenak, E. Deelman, C. Kesselman, J. Lee, A. Sim, A. Shoshani, B. Drach, and D. Williams, "High-Performance Remote Access to Climate Simulation Data: A Challenge Problem for Data Grid Technologies", Super Computing 2001
  129. E. Hjort, D. Olson, A. Sim, J. Yang, J. Lauret, M. Messer, "Data Grid Services in STAR, Initial Deployment: Site-to-Site File Replication", Computing in High Energy Physics (Beijing, China), 2001
  130. D. Olson, E. Hjort, J. Lauret, M. Messer, A. Shoshani, A. Sim, "Non-shared Disk Cluster - A Fault Tolerant, Commodity Approach to Hi-Bandwidth Data Analysis", Computing in High Energy Physics (Beijing, China), 2001
  131. A. Sim, A. Shoshani, "HRM: Hierarchical Resource Manager", the Fourth Globus workshop (Pittsburgh, PA), 2000
  132. A. Shoshani, A. Sim, L.M. Bernerdo, H. Nordberg, "Coordinating Simultaneous Caching of File Bundles from Tertiary Storage", International Conference on Scientific and Statistical Database Management (Berlin, Germany), 2000
  133. A. Sim, A. Shoshani, L. M. Bernardo, H. Nordberg, "A Storage Access Coordination System for Perabyte Scale Scientific Data", IONA World 2000 (Boston, MA), Vol. II, 2000
  134. L. M. Bernardo, B. Gibbard, D. Malon, H. Nordberg, D. Olson, R. Porter, A. Shoshani, A. Sim, A. Vaniachine, T. Wenaus, K. Wu, D. Zimmerman, "New Capabilities in the HENP Grand Challenge Storage Access System and its Application at RHIC", Computing in High Energy Physics (Padova, Italy), 2000
  135. L. M. Bernardo, A. Shoshani, A. Sim, H. Nordberg, "Access Coordination Of Tertiary Storage For High Energy Physics Applications", Seventeenth IEEE Symposium on Mass Storage Systems (College Park, MD), 2000
  136. A. Sim, H. Nordberg, L. M. Bernardo, A. Shoshani, D. Rotem, "Storage Access Coordination Using CORBA", Distributed Objects and Application (Edinburgh, UK), 168-175, 1999
  137. A. Shoshani, L.M. Bernardo, H. Nordberg, D. Rotem, A. Sim, "Multidimensional Indexing and Query Coordination for Tertiary Storage Management", International Conference on Scientific and Statistical Database Management (Cleveland, OH), 214-225, 1999
  138. A. Shoshani, L.M. Bernardo, H. Nordberg, D. Rotem, A. Sim, "Storage Management for High Energy Physics Applications", Computing in High Energy Physics (Chicago, IL), 1998
  139. A. Sim, B. Parvin, P. Keagy, "Invariant Representation and Hierarchical Network for Inspection of Nuts from X-ray Images", IEEE International Conference on Neural Networks '95 (Australia) Vol. II, 738-743, 1995
  140. A. Sim, B. Parvin, P. Keagy, "Machine Vision Inspection of Insect Infested Pistachio Nuts from X-ray Images", Vision Interface '95 (Quebec, Canada), 17-22, 1995

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