id	keyword
crl-11834	systems
crl-11834	information
crl-11834	retrieval
crl-11834	comparison
crl-11834	documentation
crl-11834	american
crl-11834	subject
crl-11834	classification
crl-11834	indexing
crl-11834	evaluation
crl-11834	testing
crl-11834	user
crl-11834	cranfield
crl-11834	results