Hi, have you tried to encode the sparse vector yourself using the
BinaryDocValueField? One way I can think of is to encode it as (size,
index_array, value_array) per doc
Intuitively I feel like this should be more efficient than one dimension
per field if your dimension is high enough
Patrick
On
I wouldn't call this a good way, but as the last resort you can parse the
metadata files yourself, as it is not so hard to parse (yet), the logics
are in:
Lucene99HnswVectorsFormat.java
Lucene99FlatVectorsFormat.java
The risk for sure is that whenever the format is changed the parsing logic
will ne
The Lucene PMC is pleased to announce the release of Apache Lucene 9.8.0.
Apache Lucene is a high-performance, full-featured search engine library
written entirely in Java. It is a technology suitable for nearly any
application that requires structured search, full-text search, faceting,
nearest-n
; Thanks,
> Wei
>
> On Thu, May 4, 2023 at 3:33 AM Michael Sokolov wrote:
>
> > There is no meaning to the sequence. The segments are created
> concurrently
> > by many threads and the merge process will merge them without regards to
> > any ordering.
> >
&g
For that part I'm not entirely sure, if other folks know it please chime in
:)
On Wed, May 3, 2023 at 8:48 AM Wei wrote:
> Thanks Patrick! In the default case when no LeafSorter is provided, are the
> segments traversed in the order of creation time, i.e. the oldest segment
> is
<https://github.com/apache/lucene/blob/main/lucene/core/src/java/org/apache/lucene/index/DirectoryReader.java#L75>
when you're opening the IndexReader
Patrick
On Tue, May 2, 2023 at 5:28 PM Wei wrote:
> Hello,
>
> We have a index that has multiple segments generated with continuous
>
knows more
can chime in, but in the unit
test since you're just deleting one doc, it's quite possible that
IndexWriter will apply the delete right away
regardless of what you have passed in.
Hope that helps
Patrick
On Thu, Mar 2, 2023 at 3:50 PM Ningshan Li wrote:
> Hi Patrick,
s://github.com/apache/lucene-solr/blob/branch_7_4/lucene/core/src/java/org/apache/lucene/index/StandardDirectoryReader.java#L288>
)
So basically the applyAllDeletes you passed into SearcherManager will
affect every call to the maybeRefresh.
Best
Patrick
On Thu, Mar 2, 2023 at 3:03 PM Ningshan
; No, you can't control them. And we must not open up anything to try to
> support this.
>
> On Fri, Dec 16, 2022 at 7:28 PM Patrick Zhai wrote:
> >
> > Hi Mike, Robert
> >
> > Thanks for replying, the system is almost like what Mike has described:
> one wri
at playing with
filenames can become quite
troublesome, but still, even out of my own curiosity, I want to understand
whether we're able to control
the segment names in some way?
Best
Patrick
On Fri, Dec 16, 2022 at 6:36 AM Michael Sokolov wrote:
> +1 trying to coordinate multiple writer
replicator/nrt module has not provided a solution
on when the primary node (main indexer) is down, how would we recover with
a back up indexer?
Thanks
Patrick
On Thu, Dec 15, 2022 at 7:16 PM Robert Muir wrote:
> This multiple-writer isn't going to work and customizing names won't
>
<https://github.com/apache/lucene/blob/main/lucene/core/src/java/org/apache/lucene/index/StandardDirectoryReader.java#L218>,
and seems all we can do right now is to reload the whole index and that
could be potentially a high cost.
Sorry for the long email and thank you in advance for any replies!
Best
Patrick
Let me clarify:
Example query: "(author:Patrick author:Michael) && type:pdf"
Example result: 2 items: Doc1 with authors "Patrick, Adalberto" and Doc2
with authors "Patrick, Michael, Elias"
I want to show the 2 items, but when I show the authors, I only wa
How to test if a value in a multi-value field matches a specific query?
Example of the problem:
I've created a query to return all documents of some specific authors. The
authors field contains multi-value sorted set.
When showing the result, I want to show only the name of the authors
specified
How to test if a value in a multi-value field matches a specific query?
Example of the problem:
I've created a query to return all documents of some specific authors. The
authors field contains multi-value sorted set.
When showing the result, I want to show only the name of the authors
specified
Hi Elbek,
Maybe go with ContainedByIntervalsSource? ContainingIntervalsSource is
actually the big source filtered by small source, and
ContainedByIntervalsSource is the opposite so it should give the expect
behavior?
Best
Patrick
elbek kamoliddinov 于2021年6月2日周三 下午2:55写道：
> Hello every
Sorry for the delayed response, as for caching termDict data across
threads, I do not aware of any existing lucene mechanism could do that (and
it might be tricky since it is across threads), but maybe worth trying to
see whether we can get some extra speed based on that!
Patrick
Ravikumar
log.thetaphi.de/2012/07/use-lucenes-mmapdirectory-on-64bit.html
Best
Patrick
Ravikumar Govindarajan 于2021年5月24日周一
上午9:54写道：
> Thanks Michael!
>
> This was just what I was looking for!!. Just a couple of questions.
>
>
>- When we call addIndexes(IndexReader...),
I don't believe I have it working, but have made progress
I believe the issue was I was using a SortField() instead of a
SortedNumericSortField()
-Todd
-Original Message-
From: Fielder, Todd Patrick [mailto:tpfi...@sandia.gov]
Sent: Monday, October 31, 2016 1:46 PM
To: java
if that’s in Lucene
5.0, though, you may need to upgrade to something more recent.
Alan Woodward
www.flax.co.uk
> On 31 Oct 2016, at 15:34, Fielder, Todd Patrick wrote:
>
> Hello,
>
> I have a question about Multivalued DocValuesFields...I am using
> Lucene 5.0
>
>
use a SortedNumericDocValuesField, which allows for multiple
numeric values to be stored per-document. I’m not sure if that’s in Lucene
5.0, though, you may need to upgrade to something more recent.
Alan Woodward
www.flax.co.uk
> On 31 Oct 2016, at 15:34, Fielder, Todd Patrick wrote:
>
> Hello,
>
&g
Hello,
I have a question about Multivalued DocValuesFields...I am using Lucene 5.0
I am indexing an object that contains an Array of Sub-objects. Those
sub-objects have a Long value that I need to index with fieldStore=true. That
works just fine.
I also want to sort that field and so I am att
I have a NumericRangeQuery and a TermQuery that I am combining into a Boolean
query. I would then like to pass the Boolean query to the highlighter to
highlight both the range and term hits. Currently, only the terms are being
highlighted.
Any help on how to get the range values to highlight
e a match in a query
Maybe you can use the phrase search like:
NOT "\"Record type\""
On 7/23/15, 12:53 PM, "Fielder, Todd Patrick" wrote:
>Hi,
>I'm wondering if there is a way to ignore a match in a query? For
>example, I have two strings
&g
Hi,
I'm wondering if there is a way to ignore a match in a query? For example, I
have two strings
1) "Record type: record"
2) "Record type: cd"
I do not want the text "record type" to match, so searching for the text
"record" should return string 1 and not string 2. I can't say "NO
I am trying to add a facet for which each document can have multiple values,
but am receiving the following exception:
dimension "Role Name" is not multiValued, but it appears more than once in this
document
How do I create a MultiValued Facet?
Thanks in advance
Hello,
I have a call to writer.deleteDocuments(term); that hangs if the document is
not in the index. It works fine if the document is in the index.
Is this the expected behavior? If so, is there a better method to call if I
don't know if the term is in the index?
Thanks
-Todd
search stops to work and I get this IndexFormatTooOldException.
Do you have an idea what could be the cause of this problem?
Thanks for your help!
Patrick
Hello,
I'm not sure if this is the correct approach, so please let me know if there is
a better way to accomplish the following task
I am attempting to search an entire database for a keyword. To do this, I
indexed all the data fields into a single "content" field with a delimiter
between each
their
>> positions aren't necessarily reliable.
>>
>> Should we be suggesting an different approach to Todd's question?
>>
>> --Terry
>>
>>
>> On Mon, Mar 30, 2015 at 6:08 PM, Fielder, Todd Patrick
>>
>> wrote:
>>
>&g
ich fields those
hits had matched.
Mike McCandless
http://blog.mikemccandless.com
On Mon, Mar 30, 2015 at 1:07 PM, Fielder, Todd Patrick
wrote:
> Hello,
>
> I'm new to Lucene and am looking for advice. I'm wanting to search the
> entire DB (or almost the entire DB) for
Hello,
I'm new to Lucene and am looking for advice. I'm wanting to search the entire
DB (or almost the entire DB) for a keyword. The users also want to know which
field the string occurred in.
I can think of two ways to do this, but neither are ideal and I'm looking for
suggestions:
1)
Hello,
I'm using eclipseLink 2.3 and am wondering if there are any libraries that
integrate eclipseLink and lucene to provide automatic index updates similar to
HibernateSearch? Which versions of Lucene do they support?
Thanks
-Todd
Hi Robert/Uwe,
I have tried v4.8 and v4.9 - not working either.
V4.7.0, V4.7.1, v4.7.2 are good.
Regards,
Patrick
-Original Message-
From: Patrick Mi [mailto:patrick...@touchpoint.co.nz]
Sent: Wednesday, 24 September 2014 12:24 p.m.
To: 'java-user@lucene.apache.org'
Subject:
not v3.
Also I have tried an earlier version v4.7 as Uwe suggested and V4.7 version
works on the V3 index that V4.10 failed to open.
Regards,
Patrick
-Original Message-
From: Robert Muir [mailto:rcm...@gmail.com]
Sent: Tuesday, 23 September 2014 11:52 p.m.
To: java-user
Subject: Re: How
could point out the right direction.
Regards,
Patrick
-
To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org
For additional commands, e-mail: java-user-h...@lucene.apache.org
Can anybody provide me some information about it ? Even a small clue, I'm
kinda stuck on this and the owner of the libraries do not answer emails.
Thanks
On 28 April 2011 13:49, Patrick Diviacco wrote:
> Is Okapi BM25 (its implementation in Lucene:
> nlp.uned.es/~jperezi/
Is Okapi BM25 (its implementation in Lucene:
nlp.uned.es/~jperezi/Lucene-BM25) returning back normalized query scores (in
between 0 and 1) ?
According to Okapi formula the final score should be normalized. Could you
give some information about that ?
thanks
Nevermind, I've solved by indexing the fields with with Field.TermVector.YES
doc.add(new Field("tags", "foo bar", Store.NO, Index.ANALYZED,
Field.TermVector.YES));
On 21 April 2011 10:57, Patrick Diviacco wrote:
> Hi,
>
> for any document, the te
Hi,
for any document, the termFreqVector is always null.
I'm sure the documents are in the collection and the field exist. So where
is the problem ?
for (int i = 0; i < reader.numDocs(); i++){
TermFreqVector tfv = reader.getTermFreqVector(i, "tags");
thanks
ack-trace?
> Also, the query.toString()
>
> --
> Anshum Gupta
> http://ai-cafe.blogspot.com
>
>
> On Tue, Apr 19, 2011 at 7:40 PM, Patrick Diviacco <
> patrick.divia...@gmail.com> wrote:
>
> > I get the following error message:
> java.lang.UnsupportedOper
I get the following error message: java.lang.UnsupportedOperationException
with Lucene search method: topDocs = searcher.search(booleanQuery, null,
100);
I'm using an old version of Lucene: Lucene 2.4.1 (I cannot upgrade!)
Can you help me to understand why I get such error ?
thanks
This is the c
I've also tried to use older Lucene versions such as:
Lucene 3.1 and Lucene 2.9.4 with no luck.
Thanks
On 19 April 2011 14:48, Patrick Diviacco wrote:
> Hi, I get this error:
>
> Exception in thread "main" java.lang.IncompatibleClassChangeError:
&
Hi, I get this error:
Exception in thread "main" java.lang.IncompatibleClassChangeError:
Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.securit
I'm using BM25 Okapi Query form here:
http://nlp.uned.es/~jperezi/Lucene-BM25/
I've a quick question. I've a list of tags: "tag1 tag2 tag3" and I'm
currently passing them to the query in this way:
BM25BooleanQuery okapiQuery = new BM25BooleanQuery("tag1 tag2 tag3",
"tags",
new WhitespaceAnalyzer(
Is there a way to update only 1 doc in the index rather than index the
entire collection everytime there is a change ?
Given a specific field (I use as ID) of my indexed doc, how can I select it
and update its other fields ?
thanks
Ok, I've now seen RAMDirectory class instead and I'm using it together what
the IndexWriter... it should be ok now thanks
On 4 April 2011 13:10, Patrick Diviacco wrote:
> ok Thanks,
>
> When I use IndexWriter, I call addDocument method to add a new instance to
> the index.
Since I need to overwrite an old ramDirectory file and I don't want memory
leaks, I have the following code lines to close first the existing
RAMDirectory and create a new one.
INDEX_DIR.close();
INDEX_DIR = new RAMDirectory();
However, I get the following exception. Should I remove close() line
RAMDirectory. The clue is in the name ...
> >
> >
> > --
> > Ian.
> >
> >
> > On Fri, Apr 1, 2011 at 11:08 AM, Patrick Diviacco
> > wrote:
> > > Is there a way to index data into memory without writing to disk in
> > Lucene
Is there a way to index data into memory without writing to disk in Lucene ?
This is my current code storing it on disk
writer = new IndexWriter(FSDirectory.open(index_dir), new
IndexWriterConfig(org.apache.lucene.util.Version.LUCENE_40, new
WhitespaceAnalyzer(org.apache.lucene.util.Version.LUCEN
t;
> >> Plan B.
> >>
> >> Reverse your MUST NOT search to get a list of docids that you don't
> >> want, then loop round Random.nextInt(indexreader.numDocs()), selecting
> >> those that are not deleted (!indexreader.isDeleted(docid)) and are not
>
probably better.
>
>
> --
> Ian.
>
>
> On Tue, Mar 29, 2011 at 8:00 PM, Patrick Diviacco
> wrote:
> > Ok I've solved the first part of the problem. I'm now selecting all
> > documents that do not contain a given term with a BooleanFilter
> >
2011 20:40, Patrick Diviacco wrote:
> Is there a Filter to get a limited number of random collection docs from
> the index which DO NOT contain a specific term ?
>
> i.e. term="pizza"
>
> I want to run the query against 10 random documents of the collection that
> do not contain the term "pizza".
>
> thanks
>
Is there a Filter to get a limited number of random collection docs from the
index which DO NOT contain a specific term ?
i.e. term="pizza"
I want to run the query against 10 random documents of the collection that
do not contain the term "pizza".
thanks
Nevermind, I've compiled it using ant. solved thanks
On 29 March 2011 17:41, Patrick Diviacco wrote:
> Ok, the svn repository I can only find the source files. Should I build the
> jar by myself or is there a packaged jar to download ?
>
> thanks
>
>
> On 29 March
think it is contrib-queries, so should be lucene-queries.jar).
>
> Uwe
> -
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
>
> > -Original Message-
> > From: Patrick Diviacco [mailto:patrick.di
packaged
> the nightly build and aren't inadvertently getting older jars?
>
> Best
> Erick
>
> On Tue, Mar 29, 2011 at 7:21 AM, Patrick Diviacco
> wrote:
> > I've downloaded the nightly build of Lucene (TRUNK) and I'm referring to
> the
> > following
I've downloaded the nightly build of Lucene (TRUNK) and I'm referring to the
following documentation:
https://hudson.apache.org/hudson/view/G-L/view/Lucene/job/Lucene-trunk/javadoc/all/index.html
But I get:
cannot find symbol
symbol : class TermsFilter
location: package org.apache.lucene.search
hi,
Can I run a query against few specific docs of the collection only ?
Can I filter the built collection according to documents fields content ?
For example I would like to query over documents having field2 = "abc".
thanks
> But do the figuring out first - there is little point in speeding up
> the bit that is already quick.
>
>
> --
> Ian.
>
>
> On Tue, Mar 29, 2011 at 10:22 AM, Patrick Diviacco
> wrote:
> > hi,
> >
> > I performing multiple queries (stored in a 100MB X
My machine is Intel Dual Duo Core with 4GB ram.. is there something wrong
here ?
On 29 March 2011 11:22, Patrick Diviacco wrote:
> hi,
>
> I performing multiple queries (stored in a 100MB XML file) against a
> collection (indexed with lucene, and it was stored before in a 100M
hi,
I performing multiple queries (stored in a 100MB XML file) against a
collection (indexed with lucene, and it was stored before in a 100MB XML
file).
The process seems pretty long on my machine (more than 2 hours), so I was
wondering if importing the 100MB queries XML file into a mysql dataset
hey Uwe, so from your last answer, I understand I'm done.. no need to do
anything, I can already compare the queries.
However there is actually a misunderstanding: my booleanqueries have
variable number of boolean clauses because the fields are fixed but the
terms per field are not. So, for exampl
normalizes all queries. But you are saying I
should manually normalize them somehow ? It is not clear
thanks
Patrick
> querynorm hsouldn't be a problem (since your booleanqueries all have hte
> same structure, and odn't use query boosts ... i assume) but field norm
> might
n change the Similarity to only have the cosine
> similarity left over - if you only want to use that one.
>
> Uwe
>
> -
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
>
> > -Original Mess
>
> Uwe
>
> -
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
>
> > -Original Message-
> > From: Patrick Diviacco [mailto:patrick.divia...@gmail.com]
> > Sent: Monday, March 28, 2
On 28 March 2011 10:11, Uwe Schindler wrote:
>
>> Hi Patrick,
>>
>> You can disable the coord factor in the constructor of BooleanQuery.
>>
>> Uwe
>>
>> -
>> Uwe Schindler
>> H.-H.-Meier-Allee 63, D-28213 Bremen
>> http://
Cool, so just to be sure, if I disable the coord factor I can finally
compare my BooleanQuery results ?
On 28 March 2011 10:11, Uwe Schindler wrote:
> Hi Patrick,
>
> You can disable the coord factor in the constructor of BooleanQuery.
>
> Uwe
>
> -
> Uwe Schindle
scoring:
>
> http://lucene.apache.org/java/3_0_3/api/core/org/apache/lucene/search/Simila
> rity.html
>
> -
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
>
> > -Original Message-
> > Fro
Hi,
sorry I've already asked few days ago, but I got no reply and I really need
some help on this..
I'm running several queries against a doc collection. The queries are
documents of the collection itself, I need to measure how similar is each
document to the rest of the collection.
Now, Lucene
uot;));
>
> Unfortunately, you cannot give a charset to FileWriter itself.
>
> -
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
>
> > -Original Message-
> > From: Patrick Diviacco [ma
hich java app are you using?
>
> paul
>
>
> Le 28 mars 2011 à 09:03, Patrick Diviacco a écrit :
>
> > When I run my Lucene app and a parse a xml file I get the following error
> > due to some fonts such as "é" written in the text file.
> >
> > If I s
When I run my Lucene app and a parse a xml file I get the following error
due to some fonts such as "é" written in the text file.
If I save the text file as UTF-8 with my text editor I don't have this
issue, but when I create it with a java app, it is saved as MacRoman.
How can I specify a differ
from the collection: I compare 1 doc from
the Collection against all other docs.
I need some more info about this...
thanks
On 26 March 2011 15:57, Patrick Diviacco wrote:
> I'm performing several queries and I get scores per each document which I
> have been told being not compara
I'm performing several queries and I get scores per each document which I
have been told being not comparable across queries.
For example, if I get score: 8.234234 for a specific document from a query
A, I cannot compare such score with the document score: 3.342432 of the
query B.
However I need
#x27;t be 0.
> --
> Anshum Gupta
> http://ai-cafe.blogspot.com
>
>
> On Wed, Mar 23, 2011 at 1:38 PM, Patrick Diviacco <
> patrick.divia...@gmail.com> wrote:
>
> > yeah it is clear. However I don't just want all documents, I still want
> to
> > per
736393 84079911 All-text score:0.0018638512 Time:0.9796918
Harvesine:-5593.9307 false
On 23 March 2011 09:01, Anshum wrote:
> Hi Patrick,
> You *don't* need to add a MatchAllDocs query to anything. If you just want
> all docs, just pass it to the searcher.search functio
ot supported by the used Luke version.
>
> -
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: u...@thetaphi.de
>
> > -----Original Message-
> > From: Patrick Diviacco [mailto:patrick.divia...@gmail.com]
> > Sen
419924 All-text score:0.0018638512
I was expecting the score to be 0, instead.
thanks
On 23 March 2011 08:44, Patrick Diviacco wrote:
> The issue with
>
>
> My confusion about MatchAllDocsQuery is that I cannot specify which terms
> in which fields to search with it. I'm p
ou may have a completely different option that you
> haven't read which someone could advice if they know the exact intent.
>
> Hope this helps.
>
> --
> Anshum Gupta
> http://ai-cafe.blogspot.com
>
>
> On Tue, Mar 22, 2011 at 4:59 PM, Patrick Diviacco <
> patr
s:f14 tags:usm tags:canonef50mmf14 tags:canonef50mmf14usm
I can see the tags field repeated multiple times, so it seems to me
correctly parsed... correct ?
On 23 March 2011 07:50, Patrick Diviacco wrote:
> Your answer is quite clear, but my question is a bit more specific:
> as you s
d is probably perferred.
>
> Best
> Erick
>
> On Tue, Mar 22, 2011 at 3:41 AM, Patrick Diviacco
> wrote:
> > OK, so I'm currently doing this:
> >
> > booleanQuery.add(new
> QueryParser(org.apache.lucene.util.Version.LUCENE_40,
> > "tags"
t
> you only cared about this for debugging. What is the use-case
> for having it on all the time?
>
> Best
> Erick
>
> On Tue, Mar 22, 2011 at 12:40 PM, Patrick Diviacco
> wrote:
> > I've been told search explain should be used for debugging only becau
I've been told search explain should be used for debugging only because it
slows down a lot computations. Is it true ?
On 22 March 2011 14:29, Erick Erickson wrote:
> Try Searcher.explain.
>
> Best
> Erick
>
> On Tue, Mar 22, 2011 at 4:34 AM, Patrick Diviacco
> wr
the queries after they're assembled. I believe you'll
> find that the difference is that the PhraseQuery would find text like
> "Term1 Term2 Term3" but not text like "Term1 some stuff Term2 more
> stuff Term3" whereas BooleanQuery would.
>
> Best
> Eri
ll' documents or only docs matching your query?
> 2. if its about fetching all docs, why not use the matchalldocs query?
> 3. did you try using a collector instead of topdocs?
>
> --
> Anshum Gupta
> http://ai-cafe.blogspot.com
>
>
> On Tue, Mar 22, 2011 at 4:46
I don't think the link you suggested can help, but maybe I'm wrong.
Also, the parameter MAX_HITS is not useful, it just limit the results, it
doesn't add the not relevant docs.
On 22 March 2011 12:10, Anshum wrote:
> Hi Patrick,
> You may have a look at this, perhaps th
Is there a way to display Lucene scores per field instead of the global one
?
Both my query and my docs have 3 fields.
I would like to see the scores for each field in the results. Can I ?
Or should I run the query 3 times for each single field ?
thanks
I'm using the following code because I want to see the entire collection in
my query results:
//adding wildcards-term to see all results
rest = new TermQuery(new Term("*","*"));
booleanQuery.add(rest, BooleanClause.Occur.SHOULD);
But it doesn't work, I only see the relevant docs and not all the o
OK, so I'm currently doing this:
booleanQuery.add(new QueryParser(org.apache.lucene.util.Version.LUCENE_40,
"tags", new
WhitespaceAnalyzer(org.apache.lucene.util.Version.LUCENE_40)).parse(phrase[i]);
, BooleanClause.Occur.SHOULD);
I just want to add single terms to my booleanQuery. if I pass a q
I'm new to Lucene and I would like to know what's the difference (if there
is any) between
PhraseQuery.add(Term1)
PhraseQuery.add(Term2)
PhraseQuery.add(Term3)
and
term1 = new TermQuery(new Term(...));
booleanQuery.add(term1, BooleanClause.Occur.SHOULD);
term2 = new TermQuery(new Term(...));
bo
One more thing: It is actually not clear to me how to use PhraseQuery... I
thought I can just pass a phrase to it, but I see only add(Term) method...
should I parse the string by myself to single terms ?
On 21 March 2011 18:05, Patrick Diviacco wrote:
>
>> If description field is
>
>
> If description field is tokenized/analyzed during indexing you need to use
> PhraseQuery.
>
Uhm yeah I'm using a WhitespaceAnalyzer. This is the code using for
indexing:
writer = new IndexWriter(FSDirectory.open(INDEX_DIR), new
IndexWriterConfig(org.apache.lucene.util.Version.LUCENE_40, new
I'm combining several scores for my queries performed with Lucene and other
software.
My issue is that I have lucene scores + other scores (not related to Lucene)
for each query result.
The other scores are all normalized between 1 and 0.
I need to normalize Lucene scores (over all queries) beca
I'm new to Lucene. If I use
description = new TermQuery(new Term("description", "my string"));
I ask Lucene to consider "my string" as unique word, right ?
I actually need to consider each word, should I use PhraseQuery instead ? Or
is it correct ?
thanks
:07, Simon Willnauer wrote:
> Why do you want to replace the WhitespaceAnalyzer? I don't really
> understand what you are up to.
>
> simon
>
> On Fri, Mar 4, 2011 at 3:21 PM, Patrick Diviacco
> wrote:
> > What's the best way to replace WhitespaceAnalyzer in this li
Nevermind, I've finally solved.
I just now need to figure out how to retrieve the scores per fields in my
results.
I need to know how much similar each field is. I know I can use explain()
but it slows down computations...
thanks
On 4 March 2011 21:21, Patrick Diviacco wrote:
> ok tha
20:39, Robert Muir wrote:
> On Fri, Mar 4, 2011 at 2:12 PM, Patrick Diviacco
> wrote:
> > hey Robert,
> >
> > I know there is the documentation, I'm sorry I've confused setSimilarity
> > with setSimilarityProvider.
> >
> > However, my questio
ass implementing the SimilarityProvider
and then implement the get method ?
Also, inside the get method should I check the passed string field and
return different custom similarities classes ?
thanks
Patrick
On 4 March 2011 19:57, Robert Muir wrote:
> On Fri, Mar 4, 2011 at 1:18 PM, Patrick Di
)
thanks
On 3 March 2011 16:34, Robert Muir wrote:
> On Thu, Mar 3, 2011 at 10:25 AM, Patrick Diviacco
> wrote:
> > I've downloaded Lucene nightly build because I need to customize the
> > similarity *per field*.
> >
> > However I don't see the
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