Debraj De Contact DED1@ORNL.GOV All Publications Establishing Digital Twins for Non-Proliferation of Secure Facilities under Low Data Availability with Agent-Based Modeling, Deep Neural Network Surrogates, and Virtual Reality PoL Badge: Detecting Insider Threat Activities as well as Deviation from Workplace Patterns-of-Life (PoL) in Nuclear Reactor Facilities using Affordable Privacy-preserving Smart Badging Using Temporal Information from Human Mobility Data to Detect Anchor Points GRUMDN: A Multi-Task Model for Predicting Human Patterns-of-Life from Stay Transition Data A Visual Analytic Platform for Interactive Validation of Human Mobility Simulations HumoNet: A Framework for Realistic Modeling and Simulation of Human Mobility Network Oak Ridge National Laboratory's Strategic Research and Development Insights for Digital Twins MetaPoL: Immersive VR based Indoor Patterns of Life (PoL) and Anomalies Data Generation for Insider Threat Modeling in Nuclea... DICER: Data Intensive Computing Environment and Runtime for Evaluating Unprecedented Scale of Geospatial-Temporal Human Mobility Data Evolution of Intent and Social Influence Networks and Their Significance in Detecting COVID-19 Disinformation Actors on Social Media Methodology to Compare Twitter Reaction Trends between Disinformation Communities, to COVID related Campaign Events at Different Geospatial Granularities Conflation of Geospatial POI Data and Ground-level Imagery via Link Prediction on Joint Semantic Graph Accelerated Assessment of Critical Infrastructure in Aiding Recovery Efforts During Natural and Human-made Disaster Key Links Google Scholar ORCID LinkedIn Organizations National Security Sciences Directorate Geospatial Science and Human Security Division Human Dynamics Section Location Intelligence
