On Wed, May 07, 2003 at 08:54:14AM -0700, Sven Schupp wrote:
> I'm a bit confused about the ranking.
> Do I have any influence on the score?
> Let's assume I have in some of my files a special Meta-tag. If a site
> contains this special Meta-tag, i'd like to increase the ranking by 100
> pts. Is this possible in any way?
> I found the "MetaNamesRank"-directive, but it's not implemented yet.
It's implemented in the current dev version which can be downloaded from the
"swish-daily" page off the web site.
Now, how well it works needs to be tested. I would recommend looking at
the C code in src/rank.c. There's a bunch of variables that need to be
combined to come up with a word's rank, and how well that is done is
questionable and needs review. Then there's the issue of combining
results in boolean AND and OR searches -- and phrases.
I was indexing the various sites at Apache.org just a week or so ago, and
the ranking was not working that well -- mostly what was happening was very
large files were overpowering the results (I was compare the results from
swish-e with the results searching google.) I added a very simple hack of
just only considering the first 100 word hits (not first words) in each
document to keep the huge documents ranking highest. This helped quite a
bit. But it's not a well thought out ranking system.
If you look at the swish-e list archives you will see a number of posts
discussing ranking lately.
Received on Wed May 7 18:04:30 2003