Why does the unsupervised pretraining encourage moderate-sparseness?

Jun Li Wei Luo Jian Yang Xiaotong Yuan

Published in: CoRR (2013)

Keyphrases

unsupervised learning
completely unsupervised
supervised learning
semi supervised
data driven
pairwise
special case
unsupervised feature selection
data sparseness
competitive learning
database
information technology
video sequences
similarity measure
feature extraction
decision making
real world