TrendNets: mapping emerging research trends from dynamic co-word networks via sparse representation.

Marie Katsurai Shunsuke Ono

Published 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