Bill's right here (as always).
I call this 'compound searching' where I want to do a preliminary
search, then search within that set, winnowing as I get more specific.
In Perl CGI, I did this with an array of queries, AND'd together.
use CGI qw(:standard);
my @q = param('q');
my $swishq = join ' AND ', @q;
where my url was something like:
for example. I then offered users the choice of 'search within these
results' or 'new search'.
Bill Moseley wrote on 11/18/2004 02:44 PM:
> On Thu, Nov 18, 2004 at 12:35:12PM -0800, Masoud Pirnazar wrote:
>>i think you have the correct picture, but here's another attempt:
>>A:(a bunch of documents, say 500,000 docs) | B:(initial pre-filtering,
>>qualifying say 40,000 docs) | C:(index the 40,000 qualified docs) |
>>D:(allow users to search the 40,000 qualified docs)
>>(using the pipe sign | here to indicate the flow of data/different stages of
>>the end user specifies the criteria in steps B and D. it would be easier
>>for the end user to use the same query syntax in both steps. at step B, it
>>filters out a lot of unwanted documents. at step D, they are searching
>>using other criteria, so the query changes.
>>a typical application: fromthe 500,000 docs, i want to extract only the
>>40,000 docs that mention some kind of sport activity, then put those in the
>>"sports collection" and allow end users to search the sports collection
>>using whatever (unrelated) queries they want to use.
> Nice old databases did this (BRS was one) where you do a query and you
> get a set of records. Then you can do queries on that set.
> In swish you would index the entire thing and then do:
> -w some query AND type=sports
Peter Karman . http://www.cray.com/craydoc/ . karman(at)not-real.cray.com
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Received on Thu Nov 18 15:21:06 2004