Re: FilteredQuery and Boolean AND

Peter's problem intrigued me, so I wrote my own test case using two simple Filters that filter out all but the first (or last) doc. I seem to be getting the same results he is, which is certianly. see attached test case. while this definitely seems like a bug, it also seems like a fairly ineffi

Re: Plural Stemming

On Apr 1, 2005, at 7:03 PM, Chris Hostetter wrote: : > > Are there any Lucene extensions that can do simple stemming, i.e. just : > > for plurals? Or is the only stemming package available Snowball? LIA has a case study of jGuru which uses a very specific, home grown utility method called "stripE

Re: Plural Stemming

: > > Are there any Lucene extensions that can do simple stemming, i.e. just : > > for plurals? Or is the only stemming package available Snowball? LIA has a case study of jGuru which uses a very specific, home grown utility method called "stripEnglishPlural" ... since it's in the case study chap

Re: proximity search in lucene

On Apr 1, 2005, at 2:29 PM, Sujatha Das wrote: Hi, Does Lucene support "SpanNear" or phrase queries where the clauses or terms are not of the same field? If not, could someone let me know which is the way to support proximity searches with terms belonging to different fields. No, it does not sup

Performance Question

I have 5 indexes, each one is 6GB...I need 512MB of Heap size in order to open the index and have all type of queries. My question is, is it better to just have on large Index 30GB? will increasing the Heap size increase performance? can I store an instance of MultiSearcher(OR just Searcher in c

Re: proximity search in lucene

Hi, Does Lucene support "SpanNear" or phrase queries where the clauses or terms are not of the same field? If not, could someone let me know which is the way to support proximity searches with terms belonging to different fields. Thanks much, Sujatha Das ---

Re: Deeply nested boolean query performance

Paul, Thanks for your very thorough response. It is very helpful. For all my projects, I'm using the latest Subversion codebase and staying current with any changes there, so that is very good news. Erik On Apr 1, 2005, at 1:10 PM, Paul Elschot wrote: On Friday 01 April 2005 18:14, Erik

Re: FilteredQuery and Boolean AND

Peter, Could you provide a straight-forward test case that indexes a few documents into a RAMDirectory and demonstrates the problem you're having with AND'd FilteredQuery's? Give me something concrete and simple and I'll dig into it further. Erik On Apr 1, 2005, at 11:13 AM, Kipping, Pet

Re: Deeply nested boolean query performance

On Friday 01 April 2005 18:14, Erik Hatcher wrote: > I will soon create some tests for this scenario, but wanted to run this > by the list as well Great, see below. > What performance differences would be seen between a query like this: > > a AND b AND c AND d This will use a single

Re: Plural Stemming

On Fri, 2005-04-01 at 19:24 +0200, Andrzej Bialecki wrote: > Miles Barr wrote: > > Are there any Lucene extensions that can do simple stemming, i.e. just > > for plurals? Or is the only stemming package available Snowball? > > For which language? Stemming is always language-specific... > > If for

Re: Plural Stemming

Miles Barr wrote: Are there any Lucene extensions that can do simple stemming, i.e. just for plurals? Or is the only stemming package available Snowball? For which language? Stemming is always language-specific... If for English, then there is also a built-in PorterStemmer. If you know what you do

Plural Stemming

Are there any Lucene extensions that can do simple stemming, i.e. just for plurals? Or is the only stemming package available Snowball? Cheers -- Miles Barr <[EMAIL PROTECTED]> Runtime Collective Ltd. - To unsubscribe, e-mail

Re: Re[4]: Analyzer don't work with wildcard queries, snowball analyzer.

On Apr 1, 2005, at 11:07 AM, Sven Duzont wrote: EH> I presume your analyzer normalized accented characters? Which analyzer EH> is that? Yes, i'm using a custom analyser for indexing / searching, ti consists in : - FrenchStopFilter - IsoLatinFilter (this is the one that will replace accented char

Deeply nested boolean query performance

I will soon create some tests for this scenario, but wanted to run this by the list as well What performance differences would be seen between a query like this: a AND b AND c AND d and this one: ((a AND b) AND c) AND d In other words, will building a query with nested boolean

RE: FilteredQuery and Boolean AND

Any ideas on this? I have purchased your book, Lucene in Action, which is quite good. To make things easier, consider the example on p212. In item 4, when you combine the queries, what happens you combine them in and AND fashion? The book only has OR, which works. Although it may work since th

Re[4]: Analyzer don't work with wildcard queries, snowball analyzer.

EH> I presume your analyzer normalized accented characters? Which analyzer EH> is that? Yes, i'm using a custom analyser for indexing / searching, ti consists in : - FrenchStopFilter - IsoLatinFilter (this is the one that will replace accented characters) - LowerCaseFilter - ApostropheFilter (in

Re: using different analyzer for searching

On Mar 31, 2005, at 10:49 PM, pashupathinath wrote: i should do even more analysis as suggested by you before i should come to a decision of which analyser i should be using to solve this. what about writing a custom analyzer to solve this ??? how can i go abt the logic of implementing this in a

Re: Re[2]: Analyzer don't work with wildcard queries, snowball analyzer.

On Apr 1, 2005, at 8:09 AM, Sven Duzont wrote: Since wilcard queries are not analyzed, how can we deal with accents ? For instance (in french) a query like "ingé*" will not match documents containing "ingénieur" but the query "inge*" will. I presume your analyzer normalized accented characters? W

Re: indexing performance of little documents

This might sound a bit lame but it has worked for me. I have had the same problem where the amount of small lucene documents slows down the building of large indexes. Search is pretty fast, and read only, so for my case i just created three indexes and saved every three lucene documents into on

RE: LUCENE & eCommerce

Hi Karthik, The e-commerce website www.shoptime.com from Brasil. William. From: "Karthik N S" <[EMAIL PROTECTED]> Reply-To: java-user@lucene.apache.org To: "LUCENE" Subject: LUCENE & eCommerce Date: Fri, 1 Apr 2005 14:11:57 +0530 Hi Guys Apologies. Has Any body out on the Form ,ha

Re[2]: Analyzer don't work with wildcard queries, snowball analyzer.

Hello Erik, Since wilcard queries are not analyzed, how can we deal with accents ? For instance (in french) a query like "ingé*" will not match documents containing "ingénieur" but the query "inge*" will. Thanks --- sven Le jeudi 31 mars 2005 à 17:51:25, vous écriviez : EH> Wildcard terms si

indexing performance of little documents

Hello, I want to index a 1GB file that contains a list of lines of approximately 100 characters each, so that i can later get lines containing some particular text. The natural way of doing it with lucene would be to create 1 lucene Document per line. It works well except it is too slow for my ne

RE: using different analyzer for searching

Hi Try First Try Using the AnalysisDemo.java code from http://today.java.net/pub/a/today/2003/07/30/LuceneIntro.html?page=last#thre ad from java.net for the Contents u seems to experiment with and verify which analyzer to use. Probably this will give u some Idea on Analyzers. with regaards Ka

LUCENE & eCommerce

  Hi Guys Apologies. Has Any body out on the Form ,have implemented  Lucene API in  eCommerce ( Search based Shopping) Something similar to   http://www.bizrate.com/  .   Please Help me ???     WITH WARM REGARDS HAVE A NICE DAY [ N.S.KARTHIK]