EigenRec: Generalizing PureSVD for Effective and Efficient Top-N Recommendations A Nikolakopoulos, V Kalantzis, E Gallopoulos, JD Garofalakis Knowledge and Information Systems 58 (1), 59-81, 2018 | 58* | 2018 |

Estimating the Trace of the Matrix Inverse by Interpolating from the Diagonal of an Approximate Inverse L Wu, J Laeuchli, V Kalantzis, A Stathopoulos, E Gallopoulos Journal of Computational Physics 326, 828-844, 2016 | 46 | 2016 |

TeraPCA: a fast and scalable software package to study genetic variation in tera-scale genotypes A Bose, V Kalantzis, E Kontopoulou, M Elkady, P Paschou, P Drineas Bioinformatics, 3679–3683, 2019 | 42 | 2019 |

PFEAST: A High Performance Sparse Eigenvalue Solver Using Distributed-Memory Linear Solvers J Kestyn, V Kalantzis, E Polizzi, Y Saad In Proceedings of the International Conference for High Performance …, 2016 | 42 | 2016 |

Accelerating Data Uncertainty Quantification by Solving Linear Systems with Multiple Right-Hand Sides V Kalantzis, C Bekas, A Curioni, E Gallopoulos Numerical Algorithms 62 (4), 637-653, 2013 | 42 | 2013 |

Domain Decomposition Approaches for Accelerating Contour Integration Eigenvalue Solvers for Symmetric Eigenvalue Problems V Kalantzis, J Kestyn, E Polizzi, Y Saad Numerical Linear Algebra with Applications 25 (5), 2018 | 26 | 2018 |

Topological data analysis on noisy quantum computers IY Akhalwaya, S Ubaru, KL Clarkson, MS Squillante, V Jejjala, YH He, ... The Twelfth International Conference on Learning Representations, 2023 | 22* | 2023 |

Directed Graph Auto-Encoders G Kollias, V Kalantzis, T Idé, A Lozano, N Abe Proceedings of the AAAI Conference on Artificial Intelligence 36 (7), 7211-7219, 2022 | 21 | 2022 |

Cucheb: A GPU Implementation of the Filtered Lanczos Procedure JL Aurentz, V Kalantzis, Y Saad Computer Physics Communications 220, 332-340, 2017 | 21* | 2017 |

Spectral Schur Complement Techniques for Symmetric Eigenvalue Problems V Kalantzis, R Li, Y Saad Electronic Transactions on Numerical Analysis 45, 305-329, 2016 | 20 | 2016 |

A Scalable Iterative Dense Linear System Solver for Multiple Right-Hand Sides in Data Analytics V Kalantzis, ACI Malossi, C Bekas, A Curioni, E Gallopoulos, Y Saad Parallel Computing 74, 136-153, 2018 | 19 | 2018 |

A Hierarchical Low-Rank Schur Complement Preconditioner for Indefinite Linear Systems G Dillon, V Kalantzis, Y Xi, Y Saad SIAM Journal on Scientific Computing 40 (4), A2234-A2252, 2018 | 19 | 2018 |

Beyond Automated Multilevel Substructuring: Domain Decomposition with Rational Filtering V Kalantzis, Y Xi, Y Saad SIAM Journal on Scientific Computing 40 (4), C477-C502, 2018 | 17* | 2018 |

Stable Computation of Generalized Matrix Functions via Polynomial Interpolation JL Aurentz, AP Austin, M Benzi, V Kalantzis SIAM Journal on Matrix Analysis and Applications 40 (1), 210-234, 2019 | 13 | 2019 |

Projection techniques to update the truncated SVD of evolving matrices with applications V Kalantzis, G Kollias, S Ubaru, AN Nikolakopoulos, L Horesh, K Clarkson International Conference on Machine Learning, 5236-5246, 2021 | 10 | 2021 |

A Domain Decomposition Rayleigh--Ritz Algorithm for Symmetric Generalized Eigenvalue Problems V Kalantzis SIAM Journal on Scientific Computing 42 (6), C410-C435, 2020 | 9 | 2020 |

A spectral Newton-Schur algorithm for the solution of symmetric generalized eigenvalue problems V Kalantzis Electronic Transactions on Numerical Analysis 52, 132-153, 2020 | 9 | 2020 |

Domain decomposition algorithms for the solution of sparse symmetric generalized eigenvalue problems V Kalantzis PhD Dissertation, 2018 | 8 | 2018 |

Fast randomized non-Hermitian eigensolver based on rational filtering and matrix partitioning V Kalantzis, Y Xi, L Horesh SIAM Journal on Scientific Computing 43 (5), S791–S815, 2021 | 7 | 2021 |

Quantum Graph Transformers G Kollias, V Kalantzis, T Salonidis, S Ubaru ICASSP 2023-2023 IEEE International Conference on Acoustics, Speech and …, 2023 | 6 | 2023 |