Identifying multivariate geochemical anomalies via tensor dictionary learning over spatial-elemental dimensionalities.
Shuyan YuHao DengZhankun LiuJin ChenXiaotang GuJiaxin LiKeyan XiaoXiancheng MaoPublished in: Comput. Geosci. (2022)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- image super resolution
- spatial information
- group sparsity
- object category recognition
- sparse codes
- regression model
- image classification
- high order
- dimensionality reduction
- higher order
- negative matrix factorization
- image patches
- dictionary learning for sparse
- data sets
- linear combination
- image representation
- natural images
- co occurrence
- data points
- prior knowledge
- k means
- feature extraction
- computer vision