248 search results - page 44 / 50 » Unsupervised Learning for Hierarchical Clustering Using Stat... |
EDM
2009
13 years 5 months ago
2009
Data mining methods are successful in educational environments to discover new knowledge or learner skills or features. Unfortunately, they have not been used in depth with collabo...
CVPR
2003
IEEE
14 years 9 months ago
2003
IEEE
This paper studies the problem of combining region and boundary cues for natural image segmentation. We employ a large database of manually segmented images in order to learn an o...
MIR
2005
ACM
14 years 1 months ago
2005
ACM
A typical way to perform video annotation requires to classify video elements (e.g. events and objects) according to some pre-defined ontology of the video content domain. Ontolo...
BMCBI
2010
13 years 7 months ago
2010
Background: Nonnegative Matrix Factorization (NMF) is an unsupervised learning technique that has been applied successfully in several fields, including signal processing, face re...
WWW
2009
ACM
14 years 8 months ago
2009
ACM
Automatic folksonomy construction from tags has attracted much attention recently. However, inferring hierarchical relations between concepts from tags has a drawback in that it i...