CityGrid's Lucene Presentation at LAJUG

Hi everyone, Do you know where I can find CityGrid's presentation that they did on Sep 14 at LAJUG? It's called "Real time index updates in Lucene". Thanks, Eugene.

RE: Lucene Software/Hardware Setup Question

Thanks Toke. Very descriptive. A few more questions about your SSD drive(s) - what is its current size - do you project any growth in your index size - if yes then how do you plan to correlate that with your hardware needs Thanks again Eugene. -Original Message- From: Toke Eskildsen

Lucene Software/Hardware Setup Question

catalog sizes then what kind of software/hardware do you have running, i.e. what app servers, how many, what hardware are these app servers running on? Any information would be helpful. Thanks in advance. Eugene.

RE: Checking for duplicates inside index

e our code is in beta testing now. My former colleague, Chris, has received agreement from Doug Cutting since last August that this feature is nice to have. Eugene -Original Message- From: Omar Didi [mailto:[EMAIL PROTECTED] Sent: Monday, May 22, 2006 6:47 PM To: java-user@lucene.apach

Re: sumOfSquaredWeights for lengthNorm

m 0.74608845 = fieldWeight(Contents:formulation in 21), product of: 1.0 = tf(termFreq(Contents:formulation)=0) 5.9687076 = idf(docFreq=0) 0.125 = fieldNorm(field=Contents, doc=21) .. -- End of Explanation Thanks. -- Eugene ---

Re: Help interpreting explanation

ooking at the API for BooleanQuery i saw this: "Using setMinimumNumberShouldMatch will force the use of BooleanWeight2, regardless of wether setUseScorer14(true) has been called." What is the method setUseScorer14 about? -- Eugene --

sumOfSquaredWeights for lengthNorm

the Field. Can anyone tell me how to start? Thanks. -- Eugene - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

Re: Help on Similarity

explanantion for the top doc id, it includes every term in the query twice with a raw score of 11.50651, when some terms don't even appear in any docs. And the max raw score of the top doc is only 4.12327. Anyone encounter this before? Thanks Eugene wrote: Hi, I tried implementing m

Help on Similarity

; 0.0f. How do I correctly set the Similarity? I'm quite new to this, some links to implementing Similarity will also be useful. Thanks. -- Eugene Here's the code for my CosSimilarity: import org.apache.lucene.search.Similarity; public class CosSimilarity extends Similarity {

Re: Help interpreting explanation

Hi, Since i'm using a boolean OR query i figured it must be related to the BooleanScorer (though there's a more complicated BooleanScorer2 which I'm not sure when it's use). Looking at the BooleanScorer code it's probably a little over my head as I'm still a beginner to Lucene. But, I woul

Re: Help interpreting explanation

ead of int. So i'm curious to see how this method is invoked. Thanks. -- Eugene Eric Jain wrote: Eugene wrote: Any good links on extending the similarity class? A lot of posts discusses David Spencer's "More Like This" but i can;t find this anywhere. The "More Like

Re: Help interpreting explanation

I was wondering if anyone has any idea how i can start to implement my own similarity. I wanna use the cosine similarity measure instead. I was looking through the past forums posts and saw that quite a few people have also discussed this, but no real method of doing it was mentioned. Any good

Re: Help interpreting explanation

n you tell where i can find it? thanks. -- Eugene Yonik Seeley wrote: On 3/3/06, Eugene <[EMAIL PROTECTED]> wrote: Just one more question: Any way in which i can disable this normalization? We disabled this normalization for in Lucene 1.9 for the "expert" level search methods o

Re: Help interpreting explanation

Ok, i figured out the normalization it was actually on an earlier post here: http://mail-archives.apache.org/mod_mbox/lucene-java-user/200601.mbox/[EMAIL PROTECTED] Just one more question: Any way in which i can disable this normalization? Thanks for all the help so far. -- Eugene Eugene

Re: Help interpreting explanation

ote: On 3/3/06, Eugene <[EMAIL PROTECTED]> wrote: Hi Yonik, Thanks a lot, I think i understand how explanation works better now. But, there's something weird I noticed. I've a query like: "problem formulation each possible x probability p x y find x p x y maximized how com

Re: Help interpreting explanation

sum of: . So, basically 2 simple questions: 1) How do I make all the literals in my query show up in explanation? 2) How does Lucene convert an Explanation score of 1.3260187 to 1.0? Thanks. -- Eugene Yonik Seeley wrote: On 3/2/06, Eugene Ezekiel <[EMAIL PROTECTED]> wrote: Thanks Yonik

Re: Help interpreting explanation

Lucene in Action does a good job of it. > There is also a formula given in the javadoc for DefaultSimilarity > > http://lucene.apache.org/java/docs/api/org/apache/lucene/search/Similarity.html > > See my comments below (inline) > > On 3/2/06, Eugene <[EMAIL PROTECTED]&g

Help interpreting explanation

0.3125 = fieldNorm(field=Contents, doc=78) -- Eugene - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

RE: Size + memory restrictions

Yes. We have the same problem. It is mainly because TermInforReader.java that takes memory space to keep *.tii. Eugene -Original Message- From: Leon Chaddock [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 14, 2006 8:43 AM To: java-user@lucene.apache.org Subject: Size + memory

Reducing Inflated Similarity Scores

o bring it more to the cos-measure? Thanks. Regards, Eugene - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

Re: Similarity scores for all docs

Yes, but what I wanna be able to do is something like, fill an array of say size 100 such that: array[0] = similarity value of query and doc(0) array[1] = similarity value of query and doc(1) Any idea how to fill this array? Thanks. -- Regards, Eugene Koji Sekiguchi wrote: You can get

Similarity scores for all docs

Hi, Is there any way to get the similarity scores for each document in the index? I can iterate thru each doc in the index using the IndexReader but not sure how to get the similarity score for that doc. Thanks. -- Regards, Eugene

Re: Question on queryparser code from Lucene

Oh...ok. Where is this method created then, I can't seem to find it in QueryParser? Thanks. -- Regards, Eugene Erik Hatcher wrote: :) Query(field) in this case is a method call. Erik - To unsubscribe, e

Question on queryparser code from Lucene

CharStream(new StringReader(query))); try { return Query(field); } I don't understand the return statement, (i) how do we return without instantiation? (ii) the Query class doesn't have a constructor that is Query(String)? Thanks. Appreciate any pointers you can give.