Private Information Retrieval Using Circulant Permutation Matrices or the Zero Matrix.
Yi-Sheng SuPublished in: ISIT (2021)
Keyphrases
- rows and columns
- singular value decomposition
- coefficient matrix
- private information retrieval
- condition number
- square matrices
- matrix representation
- positive definite
- singular values
- doubly stochastic
- linear algebra
- eigenvalues and eigenvectors
- projection matrix
- projection matrices
- correlation matrix
- sparse matrix
- data matrix
- least squares
- matrix multiplication
- symmetric positive definite
- symmetric matrices
- covariance matrix
- cryptographic protocols
- original data
- data mining
- dimensionality reduction