Tamara G. Kolda

Tamara (Tammy) Kolda is a Distinguished Member of Technical Staff in the Informatics and Systems Assessments department at Sandia National Laboratories in Livermore, California. Her research interests include multilinear algebra and tensor decompositions, data mining, optimization, nonlinear solvers, graph algorithms, parallel computing and the design of scientific software. Tamara has received the an ICDM2008 Best Paper Prize and a 2003 Presidential Early Career Award for Scientists and Engineers (PECASE). She currently serves as Section Editor for the Software and High Performance Computing Section of SISC and Associate Editor for SIMAX. More... Or see full CV...

What's New

MATLAB Code for BTER Generative Graph Model (Dec. 2011)
I've been elected to SIAM Board of Trustees (Dec. 2011)
I've been named a Distinguished Member of the ACM (Dec. 2011)
From SIAM News: Top Ten Ways to Lose an Audience, with V. Torczon (Apr. 2011)
Submit a paper to the new SISC section on Software and High Performance Computing (Oct. 2010)
Version 1.0 of the Pobano Toolbox is released (Mar. 2010)
Version 2.4 of the Tensor Toolbox for MATLAB is released, including the CP-OPT and CP-WOPT methods (Mar. 2010)

Selected Recent Papers: [Click here for complete publication list with abstracts]

Tensors

On Tensors, Sparsity, and Nonnegative Factorizations (with E. Chi), arXiv:1112.3644, Dec. 2011
Shifted Power Method for Computing Tensor Eigenpairs (with J. Mayo), SIMAX 32(4):1095-1124, Oct. 2011
All-at-once Optimization for Coupled Matrix and Tensor Factorizations (with E. Acar and D. Dunlavy), MLG'11, Aug. 2011
Making Tensor Factorizations Robust to Non-Gaussian Noise (with E. Chi), SAND2011-1877, Mar. 2011
Efficiently Computing Tensor Eigenvalues on a GPU (with G. Ballard and T. Plantenga), PDSEC-11, May 2011
Scalable Tensor Factorizations for Incomplete Data (with E. Acar, D. Dunlavy, and M. Morup), Chemometrics and Intelligent Laboratory Systems 106(1):41-56, Mar. 2011
A Scalable Optimization Approach for Fitting Canonical Tensor Decompositions (with E. Acar and D. Dunlavy), J. Chemometrics 25(2):67-86, Feb. 2011
Tensor decompositions and applications (with B. W. Bader), SIREV, 51(3):455-500, Sep. 2009

Graphs

Community structure and scale-free collections of Erdös-Rényi graphs (with A. Pinar and C. Seshadrhi), arXiv:1112.3644, Dec. 2011
The Similarity between Stochastic Kronecker and Chung-Lu Graph Models (with A. Pinar and C. Seshadrhi), arXiv:1110.4925, Oct. 2011
An In-Depth Analysis of Stochastic Kronecker Graphs (with C. Seshadrhi and A. Pinar), arXiv:1102.5046, Sep. 2011
An In-Depth Study of Stochastic Kronecker Graphs (with C. Seshadrhi and A. Pinar), ICDM 2011, to appear
Temporal Link Prediction using Matrix and Tensor Factorizations (with E. Acar and D. Dunlavy), ACM TKDD 5(2), Feb. 2011

Data Mining/Machine Learning

COMET: A Recipe for Learning and Using Large Ensembles on Massive Data (with J. D. Basilico, M. A. Munson, K. R. Dixon and W. P. Kegelmeyer), ICDM 2011, to appear
Generalized BadRank with Graduated Trust (with M. Procopio), SAND2009-6670, Oct. 2009
Scalable Tensor Decompositions for Multi-aspect Data Mining (with J. Sun), In ICDM 2008, Dec. 2008
Resolving the sign ambiguity in the singular value decomposition (with R. Bro and E. Acar), J. Chemometrics, 22(2):135-140, Feb. 2008

Optimization

Poblano v1.0: A Matlab Toolbox for Gradient-Based Optimization (with D. Dunlavy and E. Acar), SAND2010-1422, Mar. 2010
Nonlinearly-constrained optimization using asynchronous parallel generating set search (with J. Griffin), AMRX, Apr. 2010
Asynchronous parallel hybrid optimization combining DIRECT and GSS (with J. D. Griffin), Optimization Methods and Software, Aug. 2009

Software:

BTER - MATLAB code for generative graph model
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

Conferences:

DOE Applied Mathematics Program Meeting, Reston, VA, Oct 17-19, 2011 (Poster Presenter)
Large Graphs: Modeling, Algorithms and Applications, IMA, Minneapolis, MN, Oct 24-28, 2011 (Speaker)
Digital Technology Center Science and Technology Innovators Lecture Series, University of Minnesota, Minneapolis, MN, Oct 25, 2011
Grace Hopper Celebration of Women in Computing, Portland, OR, November 9-12, 2011 (Panelist)
Conference on Data Analysis, Santa Fe, NM, Feb 29-Mar 2, 2012 (Invited Session Speaker)
SIAM International Conference on Data Mining (SDM12), Anaheim, CA, Apr 26-28, 2012 (Senior Proram Commitee)
TRICAP, Bruges, Belgium, June 2-7, 2012 (Speaker)
SIAM Conference on Applied Linear Algebra, Valencia, Spain, Jun 18-22, 2012 (Organizing Committee)
SIAM Annual Meeting 2012, Minneapolis, MN, Jul 9-13, 2012 (Minisymposium Speaker)
Joint Statistical Meetings, San Diego, CA, Jul 28-Aug 2, 2012 (Invited Session Speaker)

Current Professional Service:

Section Editor, Software and High-Performance Computing, SIAM J. Scientific Computing (SISC)
Associated Editor (2011-2013), SIAM J. Matrix Analysis and Applications (SIMAX)
Member (elected; 2012-2014), SIAM Board of Trustees
Member, Mathematics Awareness Month 2012 Advisory Committee, for theme "Mathematics, Statistics, and the Data Deluge"
Member, Data Mining Technical Committee of the IEEE Computational Intelligence Society
Member, SIAM Systems Oversight Committee
Chair, SIAM Web Committee

Miscellany:

Recommended reading:

Beyond Bias and Barriers: Fulfilling the Potential of Women in Academic Science and Engineering --- published by the National Academies in 2007 --- breaks the myths and stereotypes about women and science and has specific recommendations on what institutions and organizations can do to enable women in science to succeed and prosper!
Influence: The Psychology of Persuasion by Robert B. Cialdini --- Learn about the subtle biases that have an impact on decision making, whether it's buying a car or interviewing a job candidate.
A PhD Is Not Enough: A Guide To Survival In Science by Peter J. Feibelman --- A great book for soon-to-be and recent PhD's. I recommend it to all my postdocs and summer interns.
The illustrated guide to a PhD by Matt Might

If you live in the Bay Area, you should subscribe to the BANANA (Bay Area Numerical Analysis Networking Alliance) Email List
Slides from recent talks: The What, Why, Who, Where, & How of a Successful Career, 2005
Do as I say, not as I do... How to Give a Talk: Advice on Preparing and Presenting Technical Talks in the Mathematical Sciences, Jun. 2010

At the Louisiana Museum, Denmark	Tamara G. Kolda Distinguished Member of Technical Staff Address: Sandia National Laboratories P.O. Box 969, Mail Stop 9159 Livermore, CA 94551
	Department:	Informatics and Systems Assessments
	Phone:	(925) 294-4769
	Fax:	(925) 294-2234
	E-mail:	tgkolda@sandia.gov or tammy.kolda@gmail.com