72 citations · 74 across the 4 of their papers we have counts for
4 papers
Scalable approximation of Green's function for estimation of anharmonic energy corrections
Prashant Rai, Khachik Sargsyan, Habib Najm +1
A method based on separated integration to estimate anharmonic corrections to energy and vibration of molecules in a second-order diagrammatic vibrational many-body Green's functio…
Randomized Functional Sparse Tucker Tensor for Compression and Fast Visualization of Scientific Data
Prashant Rai, Hemanth Kolla, Lewis Cannada +1
We propose a strategy to compress and store large volumes of scientific data represented on unstructured grids. Approaches utilizing tensor decompositions for data compression have…
Sparse Low Rank Approximation of Potential Energy Surfaces with Applications in Estimation of Anharmonic Zero Point Energies and Frequencies
Prashant Rai, Khachik Sargsyan, Habib Najm +1
We propose a method that exploits sparse representation of potential energy surfaces (PES) on a polynomial basis set selected by compressed sensing. The method is useful for studie…
A least-squares method for sparse low rank approximation of multivariate functions
Mathilde Chevreuil, Régis Lebrun, Anthony Nouy +1
In this paper, we propose a low-rank approximation method based on discrete least-squares for the approximation of a multivariate function from random, noisy-free observations. Spa…