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Efstratios Gallopoulos

Observed names: E Gallopoulos, E. GALLOPOULOS, E. Gallopoulos, E.J. Gallopoulos, Gallopoulos Efstratios, Gallopoulos, Efstratios
Observed institutions: Ames Research Center, Georgia Institute of Technology, Research Institute for Advanced Computer Science, University of California, Santa Barbara, University of Illinois Urbana-Champaign, University of Patras, University of Illinois System, Ghent University, National Aeronautics and Space Administration, KU Leuven
ORCID: 0000-0002-1506-9727
Observed ORCID: 0000-0002-1506-9727
OpenAlex ID: A5061247746
SVD based initialization: A head start for nonnegative matrix factorization
2007 · C. Boutsidis, E. Gallopoulos · Pattern Recognition · 729
Efficient Solution of Parabolic Equations by Krylov Approximation Methods
1992 · E. Gallopoulos, Y. Saad · SIAM Journal on Scientific and Statistical Computing · 320
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Computer as thinker/doer: problem-solving environments for computational science
1994 · E. Gallopoulos, E. Houstis, et al. · IEEE Computational Science and Engineering · 305
An Iterative Method for Nonsymmetric Systems with Multiple Right-Hand Sides
1995 · V. Simoncini, E. Gallopoulos · SIAM Journal on Scientific Computing · 154
Convergence properties of block GMRES and matrix polynomials
1996 · V. Simoncini, E. Gallopoulos · Linear Algebra and its Applications · 144
TMG: A MATLAB Toolbox for Generating Term-Document Matrices from Text Collections
2006 · D. Zeimpekis, E. Gallopoulos · Springer eBooks · 131
A Quasi-Minimal Residual Variant of the Bi-CGSTAB Algorithm for Nonsymmetric Systems
1994 · T. F. Chan, E. Gallopoulos, et al. · SIAM Journal on Scientific Computing · 112
Problem-solving Environments For Computational Science
1997 · E. Houstis, E. Gallopoulos, et al. · IEEE Computational Science and Engineering · 96
On the parallel solution of parabolic equations
1989 · E. Gallopoulos, Y. Saad · International Conference on Supercomputing · 70
Enabling Technologies for Computational Science
2000 · Elias N. Houstis, John R. Rice, et al. · Springer eBooks · 66
Computing smallest singular triplets with implicitly restarted Lanczos bidiagonalization
2004 · E. Kokiopoulou, C. Bekas, et al. · Applied Numerical Mathematics · 63
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FALCON: A MATLAB interactive restructuring compiler
1996 · L. De Rose, K. Gallivan, et al. · Lecture notes in computer science · 62
A hybrid block GMRES method for nonsymmetric systems with multiple right-hand sides
1996 · V. Simoncini, E. Gallopoulos · Journal of Computational and Applied Mathematics · 50
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EigenRec: generalizing PureSVD for effective and efficient top-N recommendations
2018 · Athanasios N. Nikolakopoulos, Vassilis Kalantzis, et al. · Knowledge and Information Systems · 44
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High-Performance Scientific Computing: Algorithms and Applications
2012 · Michael W. Berry, Kyle A. Gallivan, et al. · Springer eBooks · 43
Asynchronous iterative computations with Web information retrieval structures: The PageRank case
2006 · Kollias, Giorgos, Gallopoulos, Efstratios, et al. · arXiv (Cornell University) · 35
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Estimating the trace of the matrix inverse by interpolating from the diagonal of an approximate inverse
2016 · Lingfei Wu, Jesse Laeuchli, et al. · Journal of Computational Physics · 34
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A parallel block cyclic reduction algorithm for the fast solution of elliptic equations
1989 · E Gallopoulos, Y Saad · Parallel Computing · 33
Accelerating data uncertainty quantification by solving linear systems with multiple right-hand sides
2013 · V. Kalantzis, C. Bekas, et al. · Numerical Algorithms · 32
Incomplete partial fractions for parallel evaluation of rational matrix functions
1995 · D. Calvetti, E. Gallopoulos, et al. · Journal of Computational and Applied Mathematics · 29
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Parallelism in Matrix Computations
2015 · Efstratios Gallopoulos, Bernard Philippe, et al. · Scientific computation · 23
Exploring term-document matrices from matrix models in text mining
2006 · Antonellis, Ioannis, Gallopoulos, Efstratios · arXiv (Cornell University) · 23
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Workshop on problem-solving environments: findings and recommendations
1995 · Efstratios Gallopoulos, Elias N. Houstis, et al. · ACM Computing Surveys · 23
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A direct tridiagonal solver based on Givens rotations for GPU architectures
2015 · I.E. Venetis, A. Kouris, et al. · Parallel Computing · 22
CLSI: A Flexible Approximation Scheme from Clustered Term-Document Matrices
2005 · Dimitrios Zeimpekis, Efstratios Gallopoulos · SIAM International Conference on Data Mining · 22
Works count: 142
Citation count: 3,058
H-index: 23
I10-index: 36
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