4 papers
Pass-efficient Randomized Algorithms for Low-rank Approximation of Quaternion Matrices
Salman Ahmadi-Asl, Malihe Nobakht Kooshkghazi, Valentin Leplat
Randomized algorithms for low-rank approximation of quaternion matrices have gained increasing attention in recent years. However, existing methods overlook pass efficiency, the ab…
Randomized block Krylov method for approximation of truncated tensor SVD
Malihe Nobakht Kooshkghazi, Salman Ahmadi-Asl, Andre L. F. de Almeida
This paper is devoted to studying the application of the block Krylov subspace method for approximation of the truncated tensor SVD (T-SVD). The theoretical results of the proposed…
On the permanent of random tensors
Malihe Nobakht Kooshkghazi, Hamidreza Afshin
The exact computation of permanent for high-dimensional tensors is a hard problem. Having in mind the applications of permanents in other fields, providing an algorithm for the app…
Efficient iterative techniques for solving tensor problems with the T-product
Malihe Nobakht Kooshkghazi, Salman Ahmadi-Asl, Hamidreza Afshin
This paper presents iterative methods for solving tensor equations involving the T-product. The proposed approaches apply tensor computations without matrix construction. For each…