approximations to the matrix cosine.
Charalampos TsitourasVasilios N. KatsikisPublished in: Comput. Phys. Commun. (2014)
Keyphrases
- cosine similarity measure
- linear algebra
- singular value decomposition
- feature vectors
- euclidean distance
- covariance matrix
- information retrieval
- positive definite
- basis functions
- closed form
- image processing
- low rank
- latent semantic indexing
- information systems
- genetic algorithm
- computationally tractable
- coefficient matrix
- matrix approximation
- data mining