Senior Research Scientist
Senior Research Scientist


Dr. Choudhury, Principal Investigator (PI) is a staff scientist at the Pacific Northwest National Laboratory (PNNL) with 10+ years of experience in large-scale graph analytics and machine learning. His research focuses on learning high-fidelity representations of structure from complex data sources and development of methods for reasoning and prediction. He has served as PI, co-PI, and contributor on multiple projects funded by the U.S. Department of Defense, U.S. Department Homeland Security, U.S. Department of Energy, and PNNL’s internal research programs focusing on designing extreme-scale semantic databases, scalable inference using probabilistic graphical models, data-driven construction of knowledge graphs from unstructured text, and simulators for synthetic generation of property graphs.


  • Ph.D., Computer Science with emphasis in Artificial Intelligence, Washington State University. Dissertation titled “Subgraph Isomorphism in Dynamic Graphs.” Advisor: Dr. Lawrence B. Holder. Recipient of Outstanding Graduate Student Award (2014)
  • M.S., Electrical and Computer Engineering, Colorado State University. Thesis titled “Wideband Reception and Processing for Dual-Polarization Radars with Dual Transmitters.” Advisor: Dr. Venkatachalam Chandrasekar (2004)
  • B.S., Electrical Engineering, Jadavpur University, India (2000)

Affiliations and Professional Service

  • Reviewer for IEEE Transactions on Knowledge Discovery and Data, Transactions on Knowledge Discovery and Data Engineering, International Journal of Knowledge and Information Systems, Journal of Parallel and Distributed Computing.
  • Founder/Steering committee member: International Workshop on Parallel and Distributed Computing for Large-Scale Machine Learning and Big Data Analytics.

Awards and Recognitions

  • R&D 100 Award (2018)
  • Outstanding Performance Award, PNNL (2008, 2009, 2013, 2016, 2017, 2018)
  • Outstanding Graduate Student Award, Electrical Engineering and Computer Science department, Washington State University (2014)