Expertise drift and query expansion in expert search.
Studying Query Expansion Effectiveness.
Query reformulation using automatically generated query concepts from a document space.
Combining fields for query expansion and adaptive query expansion.
Finding good feedback documents.
Protocol-driven searches for medical and health-sciences systematic reviews
Inf. Process. Manage.
CIKM
ECIR
He B
Macdonald C
Mair F.
Bouamrane M.
Kim M
Chang Y
A Survey of Automatic Query Expansion in Information Retrieval.