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Re: Support for boolean queries in apropos
On Sun, 11 Mar 2012, Mouse wrote:
Pages either satisfy the query, in which case there is nothing
to rank them based on, or they don't, in which case they should
not be mentioned in the output at all.
I think that pages can be ranked based on how often the search
terms appear (with more appearances giving a higher rank), where
the search terms appear (with much higher weights attached to
matches in the title, the one line description in the NAME
section, or the SYNOPSIS section, and with somewhat higher
weights attached to matches in the first few paragraphs of the
Also, terms near the beginning of the search query could have
a higher weighting, so "apropos foo bar" and "apropos bar foo"
both match the same set of pages, but apply different weightings,
causing the results to be sorted differently.
--apb (Alan Barrett)
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