Massei, Stefano
- On maximum volume submatrices and cross approximation for symmetric\n semidefinite and diagonally dominant matrices
2019/02/06 by Alice Cortinovis, Daniel Kreßner, Cortinovis, Alice +3 · 6 citations
Computer Science · Engineering · Mathematics · #Advanced Optimization Algorithms Research #Discrete Mathematics (cs.DM) #FOS: Computer and information sciences #FOS: Mathematics #Matrix Theory and Algorithms #Numerical Analysis (math.NA) #Sparse and Compressive Sensing Techniques
- On the influence of stochastic roundoff errors and their bias on the convergence of the gradient descent method with low-precision floating-point computation
2022/02/24 by Lu Xia, Stefano Massei, Xia, Lu +5 · 3 citations
Computer Science · Engineering · #3D Shape Modeling and Analysis #Advanced Numerical Analysis Techniques #FOS: Computer and information sciences #FOS: Mathematics #Machine Learning (cs.LG) #Machine Learning (stat.ML) #Numerical Analysis (math.NA) #Stochastic Gradient Optimization Techniques
- Improved ParaDiag via low-rank updates and interpolation
2022/04/06 by Daniel Kreßner, Kressner, Daniel, Stefano Massei +3 · 2 citations
Computer Science · Earth and Planetary Sciences · Mathematics · #65F10 #65F45 #65M22 #93C20 #FOS: Mathematics #Geophysics and Gravity Measurements #Matrix Theory and Algorithms #Numerical Analysis (math.NA) #Statistical and numerical algorithms
- Compress-and-restart block Krylov subspace methods for Sylvester matrix equations
2020/02/04 by Kressner, Daniel, Lund, Kathryn, Massei, Stefano +1 · 2 citations
#65F10 #65F30 #65F50 #65J10 #65N22 #FOS: Mathematics #Numerical Analysis (math.NA)
- Optimizing network robustness via Krylov subspaces
2023/03/09 by Stefano Massei, Francesco Tudisco, Massei, Stefano +1 · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Advanced Graph Neural Networks #Complex Network Analysis Techniques #FOS: Mathematics #Graph theory and applications #Numerical Analysis (math.NA)
- Decay bounds for the numerical quasiseparable preservation in matrix\n functions
2016/08/04 by Stefano Massei, Massei, Stefano, Leonardo Robol +1 · 1 citation
Computer Science · Mathematics · #Matrix Theory and Algorithms #Mathematical functions and polynomials #Mathematical Analysis and Transform Methods
- Quasi-Toeplitz matrix arithmetic: a MATLAB toolbox
2018/01/24 by Bini, Dario A., Massei, Stefano, Robol, Leonardo · 1 citation
#FOS: Mathematics #Numerical Analysis (math.NA)
- hm-toolbox: Matlab software for HODLR and HSS matrices
2019/09/17 by Massei, Stefano, Robol, Leonardo, Kressner, Daniel · 1 citation
#FOS: Mathematics #Numerical Analysis (math.NA)
- Rational Krylov for Stieltjes matrix functions: convergence and pole\n selection
2019/08/06 by Stefano Massei, Leonardo Robol, Massei, Stefano +1 · 1 citation
Computer Science · Mathematics · #FOS: Mathematics #Fractional Differential Equations Solutions #Matrix Theory and Algorithms #Numerical Analysis (math.NA) #Tensor decomposition and applications
- Some algorithms for maximum volume and cross approximation of symmetric semidefinite matrices
2020/07/09 by Massei, Stefano · 1 citation
#FOS: Mathematics #Numerical Analysis (math.NA)
- Hierarchical adaptive low-rank format with applications to discretized PDEs
2021/04/23 by Massei, Stefano, Robol, Leonardo, Kressner, Daniel · 1 citation
#FOS: Mathematics #Numerical Analysis (math.NA)
- Optimal Polynomial Smoothers for Parallel AMG
2024/07/13 by D'Ambra, Pasqua, Durastante, Fabio, Filippone, Salvatore +2 · 3 citations
#65F08 #65F10 #65N55 #65Y05 #FOS: Mathematics #Numerical Analysis (math.NA)
- On the Convergence of the Gradient Descent Method with Stochastic Fixed-point Rounding Errors under the Polyak-Lojasiewicz Inequality
2023/01/23 by Lu Xia, Michiel E. Hochstenbach, Xia, Lu +3 · 1 citation
Engineering · Computer Science · #Advanced Numerical Analysis Techniques #Stochastic Gradient Optimization Techniques #3D Shape Modeling and Analysis