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At SIAM CSE19, I presented a talk on a DOE Lab Perspective on CSE Education which included specific recommendations for graduate education. Several persons asked for the slides, which are available here.

As a preview, the recommendations are…

  • Make side projects integral to the program
  • Explicitly develop communication skills
  • Require major programming project
  • Encourage leadership and teaming
  • Develop “soft skills” curriculum

(CSE = Computational Science & Engineering)


SIMODS has published its first set of articles.


See Sandia’s article about my new role as EIC for SIMODS:


Read the story Sharing applied mathematics with the world from Sam’s 2018 NSF-sponsored internship working with me at Sandia National Labs.


Just for fun, some of the terms from submissions in the first six months of SIMODS. This was generated using the titles, abstracts, and keywords from all the submissions that went for full review.


Travel & Talks

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Recent Publications

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Software for Sparse Tensor Decomposition on Emerging Computing Architectures

SIAM Journal on Scientific Computing, 2019

Details DOI Preprint URL Preprint PDF

Stochastic Gradients for Large-Scale Tensor Decomposition

arXiv, 2019

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Generalized Canonical Polyadic Tensor Decomposition

SIAM Review, 2019

Details Preprint URL Preprint PDF

Introduction to SIAM Journal on Mathematics of Data Science (SIMODS)

SIAM Journal on Mathematics of Data Science, 2019

Details DOI

TuckerMPI: A Parallel C++/MPI Software Package for Large-scale Data Compression via the Tucker Tensor Decomposition

arXiv, 2019

Details PDF URL

XPCA: Extending PCA for a Combination of Discrete and Continuous Variables

arXiv, 2018

Details PDF URL

A Practical Randomized CP Tensor Decomposition

SIAM Journal on Matrix Analysis and Applications, 2018

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Unsupervised Discovery of Demixed, Low-dimensional Neural Dynamics across Multiple Timescales through Tensor Components Analysis

Neuron, 2018

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An Improved Hyperbolic Embedding Algorithm

Journal of Complex Networks, 2017

Details DOI URL

Triangular Alignment (TAME): A Tensor-based Approach for Higher-order Network Alignment

IEEE/ACM Transactions on Computational Biology and Bioinformatics, 2017

Details DOI Preprint URL Preprint PDF

Selected Older Publications

Tensor Decompositions and Applications

SIAM Review, 2009

Details PDF DOI

Algorithm 862: MATLAB Tensor Classes for Fast Algorithm Prototyping

ACM Transactions on Mathematical Software, 2006

Details PDF DOI

An Overview of the Trilinos Project

ACM Transactions on Mathematical Software, 2005

Details PDF DOI

Optimization by Direct Search: New Perspectives on Some Classical and Modern Methods

SIAM Review, 2003

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Orthogonal Tensor Decompositions

SIAM Journal on Matrix Analysis and Applications, 2001

Details PDF DOI

Graph Partitioning Models for Parallel Computing

Parallel Computing, 2000

Details PDF DOI

A Semidiscrete Matrix Decomposition for Latent Semantic Indexing Information Retrieval

ACM Transactions on Information Systems, 1998

Details PDF DOI


  • FEASTPACK - MATLAB and C codes for graph analysis, including BTER code for graph generation and our wedge sampling technique for triangle counting
  • Poblano Toolbox for MATLAB - Large-scale algorithms for unconstrained nonlinear optimization
  • HOPSPACK - A C++ hybrid optimization parallel search package for derivative-free optimization
  • MET - Memory-efficient Tucker computation (requires Tensor Toolbox)
  • Tensor Toolbox for MATLAB - Higher-order operations of multidimensional arrays
  • NOX - A C++ Nonlinear Solver Package
  • Trilinos - A suite of high-performance numerical codes (including NOX)
  • APPSPACK - A C++ derivative-free optimization package
  • SDDPACK - C and MATLAB code for the semi-discrete matrix decomposition