Approximating Sparse Semi-nonnegative Matrix Factorization for X-Ray Covid-19 Image Classification.
Manel SekmaAmel MhamdiWady NaanaaPublished in: ICCCI (CCIS Volume) (2022)
Keyphrases
- x ray
- nonnegative matrix factorization
- image classification
- sparse representation
- negative matrix factorization
- sparsity constraints
- sparse coding
- data representation
- dictionary learning
- x ray images
- matrix factorization
- feature extraction
- intraoperative
- digital x ray images
- three dimensional
- least squares
- image representation
- electron microscopy
- bag of words
- principal component analysis
- image features
- spectral clustering
- transmission electron microscopy
- tomographic images
- projection images
- high dimensional
- object recognition
- computer vision
- multiscale
- xml documents
- data points
- metal oxide