How do compute the weight in a query language? For example in Queries from TREC Topics, #wsum(1 4.0 #UW3(identity theft) 4.0 identity 4.0 theft 2.0 safe 2.0 information 2.0 Internet). Is the weight about the title, descriptive and its content?
Can we use B+ Tree instead of ordinary B-Tree in access method?
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