Ramakrishnan Kannan Contact kannanr@ornl.gov | 865.574.9398 All Publications Multifrontal Non-negative Matrix Factorization... A supernodal all-pairs shortest path algorithm... A Scalable Graph Analytics Framework for Programming with Big Data in R (pbdR)... Learning to Predict Material Structure from Neutron Scattering Data... Machine Learning for Challenging EELS and EDS Spectral Decomposition... A communication-avoiding 3D sparse triangular solver... Performance Issues of SYRK Implementations in Shared Memory Environments for Edge Cases... Parallel Nonnegative CP Decomposition of Dense Tensors... A Flexible-blocking Based Approach for Performance Tuning of Matrix Multiplication Routines for Large Matrices with Edge Case... A Heterogeneity-Aware Task Scheduler for Spark... Partitioning and Communication Strategies for Sparse Non-negative Matrix Factorization... FAWCA: A Flexible-greedy Approach to find Well-tuned CNN Architecture for Image Recognition Problem... Deep data analysis via physically constrained linear unmixing: universal framework, domain examples, and a community-wide pla... TopicOnTiles: Tile-Based Spatio-Temporal Event Analytics via Exclusive Topic Modeling on Social Media... VisIRR: A Visual Analytics System for Information Retrieval and Recommendation for Large-Scale Document Data... Scaling Up Data-Parallel Analytics Platforms: Linear Algebraic Operation Cases... STExNMF: Spatio-Temporally Exclusive Topic Discovery for Anomalous Event Detection... MPI-FAUN: An MPI-Based Framework for Alternating-Updating Nonnegative Matrix Factorization... Outlier Detection for Text Data... MPI-FAUN: An MPI-Based Framework for Alternating-Updating Nonnegative Matrix Factorization Mini-Apps for High Performance Data Analysis... Kernels for scalable data analysis in science: Towards an architecture-portable future... FatMan vs. LittleBoy: Scaling up Linear Algebraic Operations in Scale-out Data Platforms... Pagination First page « First Previous page ‹‹ Page 1 Current page 2 Key Links ORCID Personal Website Organizations Computing and Computational Sciences Directorate Computer Science and Mathematics Division Mathematics in Computation Section Discrete Algorithms Group