TrendNets: mapping emerging research trends from dynamic co-word networks via sparse representation.
Marie KatsuraiShunsuke OnoPublished in: Scientometrics (2019)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- compressive sensing
- image classification
- compressed sensing
- reconstruction error
- object tracking
- joint optimization
- face recognition
- signal processing
- random projections
- negative matrix factorization
- image representation
- sparse approximations
- image patches
- sparse codes
- data sets
- co occurrence
- n gram
- high dimensional data
- linear combination
- piecewise smooth
- regularized least squares
- sparsity constraints
- supervised learning
- machine learning