Re: performance question - number of documents

2011-10-23 Thread Antony Sequeira
This may not be directly relevant to Lucene, but I wanted to learn: How does a web search engine do something like this. Do they also "score every matching document on every query" OR do they pick a subset first based on some static/offlline ranking criteria then do what Lucene does OR do they sea

query parser behavior with operator AND

2007-06-20 Thread Antony Sequeira
operator is set to AND Is this a bug. Can some one point me to a bug if it is or help me understand so I can explain this behavior. -Antony Sequeira Tets code output follows: Testing with default operator set to OR (fo AND ba OR "fo ba") -> +:fo +:ba

negative queries

2007-06-14 Thread Antony Sequeira
Hi I am aware that with Lucene I can not do negative only queries such as -foo:bar But today I ran into an issue where I realized even queries such as +foo:bar +(-goobly:doo) also never return any results. Basically I get the impression that I can not have a clause like +(-x:y) anywhere in my

Re: pre computing possible search results narrowing and hit counts on those

2005-03-30 Thread Antony Sequeira
On Wed, 30 Mar 2005 09:42:32 -0800, Doug Cutting <[EMAIL PROTECTED]> wrote: > Antony Sequeira wrote: > > A user does a search for say "condominium", and i show him the 50,000 > > properties that meet that description. > > > > I need two other pieces of

pre computing possible search results narrowing and hit counts on those

2005-03-29 Thread Antony Sequeira
Hi I have the above requirement, for which I could not find a good way to do. I think the best way to explain my problem would be to give an example. I have documents where each document represents a real estate property for sale in US. So, each document would have a city associated with it. (We i