Modeling protein dependency networks using CoCoA. - Grey Ballard (ACM Crossroads, 2006)

Communication-optimal parallel and sequential Cholesky decomposition: extended abstract. - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (SPAA, 2009)

Minimizing Communication in Linear Algebra - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (CoRR, 2009)

Minimizing Communication for Eigenproblems and the Singular Value Decomposition - Grey Ballard; James Demmel; Ioana Dumitriu (CoRR, 2010)

Communication-optimal Parallel and Sequential Cholesky Decomposition. - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (SIAM J. Sci. Comput., 2010)

Communication-Avoiding QR Decomposition for GPUs. - Michael J. Anderson; Grey Ballard; James Demmel; Kurt Keutzer (IPDPS, 2011)

Efficiently Computing Tensor Eigenvalues on a GPU. - Grey Ballard; Tamara G. Kolda; Todd D. Plantenga (IPDPS Workshops, 2011)

Brief announcement: communication bounds for heterogeneous architectures. - Grey Ballard; James Demmel; Andrew Gearhart (SPAA, 2011)

Graph expansion and communication costs of fast matrix multiplication: regular submission. - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (SPAA, 2011)

Minimizing Communication in Numerical Linear Algebra. - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (SIAM J. Matrix Anal. Appl., 2011)

Graph Expansion Analysis for Communication Costs of Fast Rectangular Matrix Multiplication. - Grey Ballard; James Demmel; Olga Holtz; Benjamin Lipshitz; Oded Schwartz (MedAlg, 2012)

Communication avoiding successive band reduction. - Grey Ballard; James Demmel; Nicholas Knight (PPoPP, 2012)

Communication-avoiding parallel strassen: implementation and performance. - Benjamin Lipshitz; Grey Ballard; James Demmel; Oded Schwartz (SC, 2012)

Brief announcement: strong scaling of matrix multiplication algorithms and memory-independent communication lower bounds. - Grey Ballard; James Demmel; Olga Holtz; Benjamin Lipshitz; Oded Schwartz (SPAA, 2012)

Communication-optimal parallel algorithm for strassen's matrix multiplication. - Grey Ballard; James Demmel; Olga Holtz; Benjamin Lipshitz; Oded Schwartz (SPAA, 2012)

Strong Scaling of Matrix Multiplication Algorithms and Memory-Independent Communication Lower Bounds - Grey Ballard; James Demmel; Olga Holtz; Benjamin Lipshitz; Oded Schwartz (CoRR, 2012)

Graph expansion and communication costs of fast matrix multiplication. - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (J. ACM, 2012)

Implementing a Blocked Aasen's Algorithm with a Dynamic Scheduler on Multicore Architectures. - Grey Ballard; Dulceneia Becker; James Demmel; Jack J. Dongarra; Alex Druinsky; Inon Peled; Oded Schwartz; Sivan Toledo; Ichitaro Yamazaki (IPDPS, 2013)

Communication optimal parallel multiplication of sparse random matrices. - Grey Ballard; Aydin Buluç; James Demmel; Laura Grigori; Benjamin Lipshitz; Oded Schwartz; Sivan Toledo (SPAA, 2013)

Communication efficient gaussian elimination with partial pivoting using a shape morphing data layout. - Grey Ballard; James Demmel; Benjamin Lipshitz; Oded Schwartz; Sivan Toledo (SPAA, 2013)

Avoiding Communication in Dense Linear Algebra. - Grey Ballard (2013)

Reconstructing Householder Vectors from Tall-Skinny QR. - Grey Ballard; James Demmel; Laura Grigori; Mathias Jacquelin; Hong Diep Nguyen; Edgar Solomonik (IPDPS, 2014)

Communication lower bounds and optimal algorithms for numerical linear algebra. - Grey Ballard; Erin C. Carson; James Demmel; Mark Hoemmen; Nicholas Knight; Oded Schwartz (Acta Numer., 2014)

Communication costs of Strassen's matrix multiplication. - Grey Ballard; James Demmel; Olga Holtz; Oded Schwartz (Commun. ACM, 2014)

Communication-Avoiding Symmetric-Indefinite Factorization. - Grey Ballard; Dulceneia Becker; James Demmel; Jack J. Dongarra; Alex Druinsky; Inon Peled; Oded Schwartz; Sivan Toledo; Ichitaro Yamazaki (SIAM J. Matrix Anal. Appl., 2014)

Diamond Sampling for Approximate Maximum All-Pairs Dot-Product (MAD) Search. - Grey Ballard; Tamara G. Kolda; Ali Pinar; C. Seshadhri 001 (ICDM, 2015)

A framework for practical parallel fast matrix multiplication. - Austin R. Benson; Grey Ballard (PPoPP, 2015)

Brief Announcement: Hypergraph Partitioning for Parallel Sparse Matrix-Matrix Multiplication. - Grey Ballard; Alex Druinsky; Nicholas Knight; Oded Schwartz (SPAA, 2015)

Improving the numerical stability of fast matrix multiplication algorithms. - Grey Ballard; Austin R. Benson; Alex Druinsky; Benjamin Lipshitz; Oded Schwartz (CoRR, 2015)

Reconstructing Householder vectors from Tall-Skinny QR. - Grey Ballard; James Demmel; Laura Grigori; Mathias Jacquelin; Nicholas Knight; Hong Diep Nguyen (J. Parallel Distributed Comput., 2015)

Avoiding Communication in Successive Band Reduction. - Grey Ballard; James Demmel; Nicholas Knight (ACM Trans. Parallel Comput., 2015)

Parallel Tensor Compression for Large-Scale Scientific Data. - Woody Austin; Grey Ballard; Tamara G. Kolda (IPDPS, 2016)

A high-performance parallel algorithm for nonnegative matrix factorization. - Ramakrishnan Kannan; Grey Ballard; Haesun Park (PPoPP, 2016)

Network Topologies and Inevitable Contention. - Grey Ballard; James Demmel; Andrew Gearhart; Benjamin Lipshitz; Yishai Oltchik; Oded Schwartz; Sivan Toledo (COMHPC@SC, 2016)

Improving the Numerical Stability of Fast Matrix Multiplication. - Grey Ballard; Austin R. Benson; Alex Druinsky; Benjamin Lipshitz; Oded Schwartz (SIAM J. Matrix Anal. Appl., 2016)

Exploiting Multiple Levels of Parallelism in Sparse Matrix-Matrix Multiplication. - Ariful Azad; Grey Ballard; Aydin Buluç; James Demmel; Laura Grigori; Oded Schwartz; Sivan Toledo; Samuel Williams 001 (SIAM J. Sci. Comput., 2016)

Reducing Communication Costs for Sparse Matrix Multiplication within Algebraic Multigrid. - Grey Ballard; Christopher M. Siefert; Jonathan J. Hu (SIAM J. Sci. Comput., 2016)

Hypergraph Partitioning for Sparse Matrix-Matrix Multiplication. - Grey Ballard; Alex Druinsky; Nicholas Knight; Oded Schwartz (ACM Trans. Parallel Comput., 2016)

A Communication-Avoiding Parallel Algorithm for the Symmetric Eigenvalue Problem. - Edgar Solomonik; Grey Ballard; James Demmel; Torsten Hoefler (SPAA, 2017)

Shared Memory Parallelization of MTTKRP for Dense Tensors. - Koby Hayashi; Grey Ballard; Jeffrey Jiang; Michael J. Tobia (CoRR, 2017)

Guest Editor Introduction PPoPP 2016, Special Issue 2 of 2. - Grey Ballard; Mary W. Hall; Tim Harris 001; Brandon Lucia (ACM Trans. Parallel Comput., 2017)

Parallel Nonnegative CP Decomposition of Dense Tensors. - Grey Ballard; Koby Hayashi; Ramakrishnan Kannan (HiPC, 2018)

Partitioning and Communication Strategies for Sparse Non-negative Matrix Factorization. - Oguz Kaya; Ramakrishnan Kannan; Grey Ballard (ICPP, 2018)

Communication Lower Bounds for Matricized Tensor Times Khatri-Rao Product. - Grey Ballard; Nicholas Knight; Kathryn Rouse (IPDPS, 2018)

Shared-memory parallelization of MTTKRP for dense tensors. - Koby Hayashi; Grey Ballard; Yujie Jiang; Michael J. Tobia (PPoPP, 2018)

A 3D Parallel Algorithm for QR Decomposition. - Grey Ballard; James Demmel; Laura Grigori; Mathias Jacquelin; Nicholas Knight (SPAA, 2018)

The geometry of rank decompositions of matrix multiplication II: 3×3 matrices. - Grey Ballard; Christian Ikenmeyer; J. M. Landsberg; Nick Ryder (CoRR, 2018)

A Practical Randomized CP Tensor Decomposition. - Casey Battaglino; Grey Ballard; Tamara G. Kolda (SIAM J. Matrix Anal. Appl., 2018)

MPI-FAUN: An MPI-Based Framework for Alternating-Updating Nonnegative Matrix Factorization. - Ramakrishnan Kannan; Grey Ballard; Haesun Park (IEEE Trans. Knowl. Data Eng., 2018)

Dynamic Functional Magnetic Resonance Imaging Connectivity Tensor Decomposition: A New Approach to Analyze and Interpret Dynamic Brain Connectivity. - Fatemeh Mokhtari; Paul J. Laurienti; Walter Jack Rejeski; Grey Ballard (Brain Connect., 2019)

Joint 3D Localization and Classification of Space Debris using a Multispectral Rotating Point Spread Function. - Chao Wang 067; Grey Ballard; Robert J. Plemmons; Sudhakar Prasad (CoRR, 2019)

PLANC: Parallel Low Rank Approximation with Non-negativity Constraints. - Srinivas Eswar; Koby Hayashi; Grey Ballard; Ramakrishnan Kannan; Michael A. Matheson; Haesun Park (CoRR, 2019)

A Generalized Randomized Rank-Revealing Factorization. - Grey Ballard; James Demmel; Ioana Dumitriu; Alexander Rusciano (CoRR, 2019)

Parallel Hierarchical Clustering using Rank-Two Nonnegative Matrix Factorization. - Lawton Manning; Grey Ballard; Ramakrishnan Kannan; Haesun Park (HiPC, 2020)

General Memory-Independent Lower Bound for MTTKRP. - Grey Ballard; Kathryn Rouse (PP, 2020)

Distributed-memory parallel symmetric nonnegative matrix factorization. - Srinivas Eswar; Koby Hayashi; Grey Ballard; Ramakrishnan Kannan; Richard W. Vuduc; Haesun Park (SC, 2020)

TuckerMPI: A Parallel C++/MPI Software Package for Large-scale Data Compression via the Tucker Tensor Decomposition. - Grey Ballard; Alicia M. Klinvex; Tamara G. Kolda (ACM Trans. Math. Softw., 2020)

Visualizing Parallel Dynamic Programming using the Thread Safe Graphics Library. - Grey Ballard; Sarah Parsons (EduHPC@SC, 2021)

Parallel Tucker Decomposition with Numerically Accurate SVD. - Zitong Li; Qiming Fang; Grey Ballard (ICPP, 2021)

Accelerating Neural Network Training using Arbitrary Precision Approximating Matrix Multiplication Algorithms. - Grey Ballard; Jack Weissenberger; Luoping Zhang (ICPP Workshops, 2021)

PLANC: Parallel Low-rank Approximation with Nonnegativity Constraints. - Srinivas Eswar; Koby Hayashi; Grey Ballard; Ramakrishnan Kannan; Michael A. Matheson; Haesun Park (ACM Trans. Math. Softw., 2021)

Parallel Tensor Train Rounding using Gram SVD. - Hussam Al Daas; Grey Ballard; Lawton Manning (IPDPS, 2022)

Brief Announcement: Tight Memory-Independent Parallel Matrix Multiplication Communication Lower Bounds. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse (SPAA, 2022)

Tight Memory-Independent Parallel Matrix Multiplication Communication Lower Bounds. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse (CoRR, 2022)

Parallel Algorithms for Tensor Train Arithmetic. - Hussam Al Daas; Grey Ballard; Peter Benner (SIAM J. Sci. Comput., 2022)

Distributed-Memory Parallel JointNMF. - Srinivas Eswar; Benjamin Cobb; Koby Hayashi; Ramakrishnan Kannan; Grey Ballard; Richard W. Vuduc; Haesun Park (ICS, 2023)

Parallel Memory-Independent Communication Bounds for SYRK. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse (SPAA, 2023)

Randomized Algorithms for Rounding in the Tensor-Train Format. - Hussam Al Daas; Grey Ballard; Paul Cazeaux; Eric Hallman; Agnieszka Miedlar; Mirjeta Pasha; Tim W. Reid; Arvind K. Saibaba (SIAM J. Sci. Comput., 2023)

AminerMag S Dataset. - Srinivas Eswar; Benjamin Cobb; Koby Hayashi; Ramakrishnan Kannan; Grey Ballard; Rich Vuduc; Haesun Park (Zenodo, 2023)

AminerMag X Dataset. - Srinivas Eswar; Benjamin Cobb; Koby Hayashi; Ramakrishnan Kannan; Grey Ballard; Rich Vuduc; Haesun Park (Zenodo, 2023)

CP decomposition for tensors via alternating least squares with QR decomposition. - Rachel Minster; Irina Viviano; Xiaotian Liu; Grey Ballard (Numer. Linear Algebra Appl., 2023)

On Rank Selection for Nonnegative Matrix Factorization. - Srinivas Eswar; Koby Hayashi; Benjamin Cobb; Ramakrishnan Kannan; Grey Ballard; Richard W. Vuduc; Haesun Park (IEEE Big Data, 2024)

Visualizing PRAM Algorithm for Mergesort. - Cade Wiley; Grey Ballard (IPDPS (Workshops), 2024)

Sequential and Shared-Memory Parallel Algorithms for Partitioned Local Depths. - Aditya Devarakonda; Grey Ballard (PP, 2024)

Parallel Randomized Tucker Decomposition Algorithms. - Rachel Minster; Zitong Li; Grey Ballard (SIAM J. Sci. Comput., 2024)

Communication Lower Bounds and Optimal Algorithms for Multiple Tensor-Times-Matrix Computation. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse (SIAM J. Matrix Anal. Appl., 2024)

Visualizing MPI Collective Communication. - Christopher Atala; Meredith Morrison; Grey Ballard (IPDPS (Workshops), 2025)

Brief Announcement: Minimizing Communication for Parallel Symmetric Tensor Times Same Vector Computation. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse; Mathieu Vérité (SPAA, 2025)

Randomized Algorithms for Symmetric Nonnegative Matrix Factorization. - Koby Hayashi; Sinan G. Aksoy; Grey Ballard; Haesun Park (SIAM J. Matrix Anal. Appl., 2025)

Minimizing Communication for Parallel Symmetric Tensor Times Same Vector Computation. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse; Mathieu Vérité (CoRR, 2025)

Communication Lower Bounds and Optimal Algorithms for Symmetric Matrix Computations. - Hussam Al Daas; Grey Ballard; Laura Grigori; Suraj Kumar; Kathryn Rouse; Mathieu Vérité (ACM Trans. Parallel Comput., 2025)

Improved Analysis of Khatri-Rao Random Projections and Applications. - Arvind K. Saibaba; Bhisham Dev Verma; Grey Ballard (CoRR, 2025)