B. Weighting in Query's Keyphrase Graph
A user query will be interpreted as a list of keyphrases
and represented as a keyphrase graph. However, unlike a
document, query lacks structure and context semantic, the
weighting on query's keyphrase graph is, therefore, more
complicated. To set the grounds for the weighting process,
some principles must be established to guesstimate the
importance of keyphrases.