nPre-processing of queries
nQ0 à Q1 by performing query expansion using external
info
nQ1 à Q2 by WordNet expansion
nPre-processing of
HLFs
nHLFi0 à HLFi1: by Wordnet expansion
nRelevance between
query and HLFs is determined as:
n Sim (Q2, HLPi1)
nAble to relate concept boat to query about “water”