Information retrieval by constrained spreading activation in semantic networks.

Paul R. Cohen Rick Kjeldsen

Published in: Inf. Process. Manag. (1987)

Keyphrases

spreading activation
semantic network
information retrieval
semantic net
document retrieval
wordnet
semantic relations
knowledge base
semantic knowledge
natural language text
information retrieval systems
test collection
knowledge sources
query expansion
co occurrence
information extraction
domain knowledge