Unsupervised Learning of Probabilistic Concept Hierarchies.

Wayne Iba Pat Langley

Published in: Machine Learning and Its Applications (2001)

Keyphrases

unsupervised learning
concept hierarchy
probabilistic model
attribute oriented induction
keywords

formal concept analysis
supervised learning
attribute values
semi supervised
co occurrence

user profiles
dimensionality reduction
document repository
high level
feature selection

genetic programming
background knowledge
search engine
case based reasoning
data sources