Efstratios Gallopoulos - researchr alias

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Viewing Publication 1 - 66 from 66

2023

Hierarchical dynamic workload scheduling on heterogeneous clusters for grid search of inverse problemsChristos Kyriakopoulos, Efstratios Gallopoulos, Ioannis E. Venetis. tjs, 79(15):16720-16772, October 2023. [doi]

2022

pylspack: Parallel Algorithms and Data Structures for Sketching, Column Subset Selection, Regression, and Leverage ScoresAleksandros Sobczyk, Efstratios Gallopoulos. TOMS, 48(4), December 2022. [doi]

2021

Estimating Leverage Scores via Rank Revealing Methods and RandomizationAleksandros Sobczyk, Efstratios Gallopoulos. siammax, 42(3):1199-1228, 2021. [doi]

2019

TMG-BoBI: Generating Back-of-the-Book Indexes with the Text-to-Matrix-GeneratorTheoni Koutropoulou, Efstratios Gallopoulos. iisa 2019: 1-8 [doi]

EigenRec: generalizing PureSVD for effective and efficient top-N recommendationsAthanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos, John D. Garofalakis. kais, 58(1):59-81, 2019. [doi]

2018

ICALP 2019 - First Call for PapersEfstratios Gallopoulos, John D. Garofalakis, Christos Kaklamanis, Sotiris E. Nikoletseas, Christos D. Zaroliagis. eatcs, 126, 2018. [doi]

A scalable iterative dense linear system solver for multiple right-hand sides in data analyticsVassilis Kalantzis, A. Cristiano I. Malossi, Costas Bekas, Alessandro Curioni, Efstratios Gallopoulos, Yousef Saad. pc, 74:136-153, 2018. [doi]

2017

Factored Proximity Models for Top-N RecommendationsAthanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos, John D. Garofalakis. icbk 2017: 80-87 [doi]

2016

Estimating the trace of the matrix inverse by interpolating from the diagonal of an approximate inverseLingfei Wu, Jesse Laeuchli, Vassilis Kalantzis, Andreas Stathopoulos, Efstratios Gallopoulos. jcphy, 326:828-844, 2016. [doi]

2015

A direct tridiagonal solver based on Givens rotations for GPU architecturesIoannis E. Venetis, A. Kouris, Alexandros Sobczyk, Efstratios Gallopoulos, Ahmed H. Sameh. pc, 49:101-116, 2015. [doi]

A general tridiagonal solver for coprocessors: Adapting g-Spike for the Intel Xeon PhiIoannis E. Venetis, Alexandros Sobczyk, Alexandros Kouris, Alexandros Nakos, Nikolaos Nikoloutsakos, Efstratios Gallopoulos. parco 2016: 371-380 [doi]

2014

Surfing the Network for Ranking by MultidampingGiorgios Kollias, Efstratios Gallopoulos, Ananth Grama. tkde, 26(9):2323-2336, 2014. [doi]

2013

Accelerating data uncertainty quantification by solving linear systems with multiple right-hand sidesV. Kalantzis, Constantine Bekas, Alessandro Curioni, Efstratios Gallopoulos. na, 62(4):637-653, 2013. [doi]

Onomatology and content analysis of ergodic literatureEugenia-Maria Kontopoulou, Maria Predari, Efstratios Gallopoulos. ht 2013: 5 [doi]

2012

2009

A versatile system for asynchronous iterations: From multithreaded simulations to Grid experimentsGiorgios Kollias, Konstantinos Georgiou, Efstratios Gallopoulos. parco 2010: 238-245 [doi]

2008

SVD based initialization: A head start for nonnegative matrix factorizationChristos Boutsidis, Efstratios Gallopoulos. PR, 41(4):1350-1362, 2008. [doi]

Jylab Meets Eclipse: Integrating PSEs with Multicomponent PlatformsGiorgios Kollias, Konstantinos Georgiou, Efstratios Gallopoulos. eScience 2008: 735-742 [doi]

2007

2006

Parallel Matrix Algorithms and Applications (PMAA 04)Maurice Clint, Efstratios Gallopoulos, Esmond Ng, Jean Roman. pc, 32(2):113-114, 2006. [doi]

Topic 10: Parallel Numerical AlgorithmsMichel Cosnard, Hans-Joachim Bungartz, Efstratios Gallopoulos, Yousef Saad. europar 2006: 677-678 [doi]

Jylab: A System for Portable Scientific Computing over Distributed PlatformsGiorgios Kollias, Efstratios Gallopoulos. eScience 2006: 97 [doi]

Oriented ::::k::::-windows: A PCA driven clustering methodDimitris K. Tasoulis, Dimitrios Zeimpekis, Efstratios Gallopoulos, Michael N. Vrahatis. In Mark Last, Piotr S. Szczepaniak, Zeev Volkovich, Abraham Kandel, editors, Advances in Web Intelligence and Data Mining. Volume 23 of Studies in Computational Intelligence, pages 319-328, Springer, 2006. [doi]

Linear and Non-Linear Dimensional Reduction via Class Representatives for Text ClassificationDimitrios Zeimpekis, Efstratios Gallopoulos. icdm 2006: 1172-1177 [doi]

TMG: A MATLAB Toolbox for Generating Term-Document Matrices from Text CollectionsDimitrios Zeimpekis, Efstratios Gallopoulos. In Jacob Kogan, Charles K. Nicholas, Marc Teboulle, editors, Grouping Multidimensional Data - Recent Advances in Clustering. pages 187-210, Springer, 2006. [doi]

2005

The design of a distributed MATLAB-based environment for computing pseudospectraConstantine Bekas, Effrosini Kokiopoulou, Efstratios Gallopoulos. fgcs, 21(6):930-941, 2005. [doi]

CLSI: A Flexible Approximation Scheme from Clustered Term-Document MatricesEfstratios Gallopoulos, Dimitrios Zeimpekis. sdm 2005: 631-635

Asynchronous Iterative Computations with Web Information Retrieval Structures: The PageRank CaseGiorgios Kollias, Efstratios Gallopoulos, Daniel B. Szyld. parco 2005: 309-316

2003

Parallel Matrix Algorithms and Applications (PMAA 02)Peter Arbenz, Efstratios Gallopoulos, Bernard Philippe, Yousef Saad. pc, 29(9):1117-1119, 2003. [doi]

2002

Parallel Computation of Pseudospectra Using Transfer Functions on a MATLAB-MPI Cluster PlatformConstantine Bekas, Effrosini Kokiopoulou, Efstratios Gallopoulos, Valeria Simoncini. pvm 2002: 199-207 [doi]

Parallel computation of pseudospectra by fast descentConstantine Bekas, Efstratios Gallopoulos. pc, 28(2):223-242, 2002.

2001

Cobra: Parallel path following for computing the matrix pseudospectrumConstantine Bekas, Efstratios Gallopoulos. pc, 27(14):1879-1896, 2001.

Towards the effective parallel computation of matrix pseudospectraConstantine Bekas, Effrosini Kokiopoulou, Ioannis Koutis, Efstratios Gallopoulos. ics 2001: 260-269 [doi]

Topic 19: Problem Solving EnvironmentsDavid W. Walker, Kenneth A. Hawick, Domenico Laforenza, Efstratios Gallopoulos. europar 2001: 916-917 [doi]

1996

3-D Land Avoidance and Load Balancing in Regional Ocean SimulationLuiz De Rose, Kyle Gallivan, Efstratios Gallopoulos. icpp 1996: 158-165

1995

1994

A Quasi-Minimal Residual Variant of the Bi-CGSTAB Algorithm for Nonsymmetric SystemsTony F. Chan, Efstratios Gallopoulos, Valeria Simoncini, Tedd Szeto, Charles H. Tong. siamsc, 15(2):338-347, 1994. [doi]

1993

Accuracy Control for Parallel Evaluation of Matrix Rational FunctionsDaniela Calvetti, Efstratios Gallopoulos, Lothar Reichel. ppsc 1993: 652-655

1992

Efficient Solution of Parabolic Equations by Krylov Approximation MethodsEfstratios Gallopoulos, Yousef Saad. siamsc, 13(5):1236-1264, 1992. [doi]

Experiments with an ocean circulation model on CEDARLuiz De Rose, Kyle Gallivan, Efstratios Gallopoulos. ics 1992: 397-408 [doi]

1991

Parallel Ocean Circulation Modeling on CedarLuiz De Rose, Kyle Gallivan, Efstratios Gallopoulos, A. Navarra. ppsc 1992: 401-405

Decomposing polynomial interpolation for systolic arraysÇetin Kaya Koç, Peter R. Cappello, Efstratios Gallopoulos. ijcm, 38(3-4):291-239, 1991. [doi]

1990

Systolic computation of interpolating polynomialsPeter R. Cappello, Efstratios Gallopoulos, Çetin Kaya Koç. computing, 45(2):95-117, 1990. [doi]

1989

Experiments with Elliptic Problem Solvers on the Cedar MulticlusterG. Frank, Efstratios Gallopoulos, Ulrike Meier. ppsc 1990: 245-250

Some Fast Elliptic Solvers on Parallel Architectures and their ComplexitiesEfstratios Gallopoulos, Yousef Saad. ijhsc, 1(1):113-141, 1989. [doi]

A parallel block cyclic reduction algorithm for the fast solution of elliptic equationsEfstratios Gallopoulos, Yousef Saad. pc, 10(2):143-159, 1989.

Efficient Parallel Solution of Parabolic Equations: Implicit Methods on the Cedar MulticlusterEfstratios Gallopoulos, Yousef Saad. ppsc 1990: 251-256

On the parallel solution of parabolic equationsEfstratios Gallopoulos, Yousef Saad. ics 1989: 17-28 [doi]

Efficient Parallel Solutions of Parabolic Equations: Explicit MethodsYousef Saad, Efstratios Gallopoulos. ppsc 1990: 297-298

Fast computation of divided differences and parallel hermite interpolationÖmer Egecioglu, Efstratios Gallopoulos, Çetin Kaya Koç. jc, 5(4):417-437, 1989. [doi]

Parallel Hermite interpolation: An algebraic approachÖmer Egecioglu, Efstratios Gallopoulos, Çetin Kaya Koç. computing, 42(4):291-307, 1989. [doi]

1988

Boundary integral domain decomposition of hierarchical memory multiprocessorsEfstratios Gallopoulos, D. Lee. ics 1988: 488-499 [doi]

1987

Fast Laplace Solver by Boundary Integral Based Domain Decomposition MethodsEfstratios Gallopoulos, D. Lee. ppsc 1989: 141-145

Parallel Rapid Elliptic SolversEfstratios Gallopoulos, Yousef Saad. ppsc 1989: 51-55

A Parallel Block Cyclic Reduction Algorithm for the Fast Solution of Elliptic EquationsEfstratios Gallopoulos, Yousef Saad. ics 1988: 563-575

1985

Processor Arrays for Problems in Computational Physics (Parallel)Efstratios Gallopoulos. PhD thesis, University of Illinois Urbana-Champaign, USA, 1985. [doi]

1983

Numerical Experiments with the Massively parallel ProcessorEfstratios Gallopoulos, S. D. McEwan. icpp 1983: 29-35

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