t gives us full relation extracted. Not sure if
it helps.
On Mon, Jun 8, 2020 at 11:37 AM Stefan Onofrei
wrote:
> Thanks for the replies.
>
> @Mike: Yes, I think the idea is to run separate queries for each of the
> resulting hits, as you described. I am concerned about the performance
&
Thanks for the replies.
@Mike: Yes, I think the idea is to run separate queries for each of the
resulting hits, as you described. I am concerned about the performance
implications of going down this route, especially when dealing with large
result sets.
@Mikhail: Thanks for the suggestion! I
Hi, Stefan.
Have you considered faceting/aggregation over `from` field?
On Tue, May 12, 2020 at 7:23 PM Stefan Onofrei
wrote:
> Hi,
>
> When using Lucene’s query-time join feature [1], how can the hits from the
> first phase which determine / contribute to the returned results be
Actually, I do not see how this can work efficiently with per-hit queries
after the join.
For each of the final joined hits, you must 1) retrieve the join key
value(s) by pulling doc values iterators and advancing to the right docid,
2) run another query to "join backwards" to the hit
I am trying first to understand the proposed solution from the previous
thread.
You run query #1, it returns top N hits. From those hits you ask JoinUtil
to create the "joined" query #2. You run the query #2 to get the top final
(joined) hits.
Then, to reconstruct which docids fro
Hi,
When using Lucene’s query-time join feature [1], how can the hits from the
first phase which determine / contribute to the returned results be
retrieved?
This topic has been brought up before [2], and at the time the
recommendation was to re-run the query with added constraints based on the
This link helped me, it contained the solution.
Thank you!
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m/FfFy2Amp.
Le jeu. 1 sept. 2016 à 16:09, szzoli a écrit :
> I call
> IndexSearcher.search(Query, Collector)
> but it is void. Where can I obtain the Scorer object?
> collector.getTotalHits()
> seems to return the number of the documents.
> How can I tell it that it should coun
I call
IndexSearcher.search(Query, Collector)
but it is void. Where can I obtain the Scorer object?
collector.getTotalHits()
seems to return the number of the documents.
How can I tell it that it should count the hits in the approriate document?
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View this message in context:
http://lucene
te these objects, too?
>
>
>
> --
> View this message in context:
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>
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Maybe you should clarify your use-case. For instance Uwe was assuming that
you needed this information for debugging purposes while I was assuming
that you needed it for your application logic.
Le jeu. 1 sept. 2016 à 14:20, szzoli a écrit :
> "If the Query is a TermQuery, you can get this number
ght be abstract, or have constuctors with several class
parameters, ans so on...
How can I get to Scorer.freq() so that the Scorer sould know, which
Documentt's hits I am seaching for? Can you show me an example?
Thank you.
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Original Message-
> From: Mikhail Khludnev [mailto:m...@apache.org]
> Sent: Monday, August 29, 2016 2:17 PM
> To: java-user@lucene.apache.org
> Subject: Re: Lucene 6.1: number of hits per document
>
> try fl=*,tf(text,'run')
> or check explanation on debugQuery=true
&
?
To
Mikhail Khludnev-2:
What is
" fl=*,tf(text,'run') " ?
--
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Sent from the Lucene - Java Users mailing list a
run". A document contained two times, an
> other three times this word.
> I would like to see int the result for the firs document "2", for the other
> "3".
>
> Thank you
>
>
> Adrien Grand wrote
> > What do you mean by "number of hits per d
Le lun. 29 août 2016 à 12:00, a écrit :
> I was searching for a word in an index (multiple files were indexed in a
> library). I was searching e.g for "run". A document contained two times, an
> other three times this word.
> I would like to see int the result for the firs document "2", for the
>
ou
Adrien Grand wrote
> What do you mean by "number of hits per documents"? Can you give an
> example
> maybe?
>
> Le jeu. 25 août 2016 à 16:29, szzoli
> <
> reg9sz...@freemail.hu
> >
> a écrit :
>
>> Hi,
>>
>> I would like to
What do you mean by "number of hits per documents"? Can you give an example
maybe?
Le jeu. 25 août 2016 à 16:29, szzoli a écrit :
> Hi,
>
> I would like to get the number of hits per document.
> I googled around a lot, there were code snipplets for older versions. Non
Hi,
I would like to get the number of hits per document.
I googled around a lot, there were code snipplets for older versions. None
of them works with Lucene 6.1.
Any help would be appreciated.
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which consumes
messages from a message queue and adds them to the cache (which in turn
adds them to Lucene through the listener) (we get a burst of 2000-3000
messages every 5 minutes).
And this is where I run in to problems, a search will return the correct
number of hits (verified against database)
Hi Luis,
Thats an interesting question. Can you share your similarity?
I suspect you return 1 expect Similarity#coord method.
Not sure but, for phrase query, one may require to modify
ExactPhraseScorer/ExactPhraseScorer etc.
ahmet
On Thursday, May 12, 2016 5:41 AM, Luís Filipe Nassif
wrote:
Hi,
In the past (lucene 4) I have tried to implement a simple Similarity to
only count the number of occurrences (term frequencies) into the documents,
ignoring norms, doc frequencies, boosts... It worked for some queries like
term and wildcard queries, but not for others, like phrase and range
qu
p://lucene.472066.n3.nabble.com/Collector-is-collecting-more-than-the-specified-hits-tp4117329p4118096.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
> -
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For additional
You look at the hits you got back, and save the docID of the very last
hit, and use that on the follow-on search to get the "next page".
This is how searchAfter works ... but you need to ensure you use the
same searcher for follow-on requests; otherwise the docIDs are not
comparable.
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Sorry, searchAfter only works if you are sorting by score or by fields.
It seems like you are sorting by docID? Ie, at first you want the top
100 hits sorted by docID, then the next 100, etc.?
If so, you could just modify your collector so that you tell it up
front the "afterDocID&quo
= TopScoreDocCollector.create(101+100, true);
it should call from 101 - 200 and not from 0-200.
Thanks,
Sai.
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Could you please elaborate on the above? I am not sure if the collector is
already doing it or do I need to call any other API?
Thanks,
Sai.
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Sent
nd giving me the 100. Can we have the collector do it
> intelligently by remembering the old search results and run the collector
> for the next 100 only.
>
> Thanks,
> Sai.
>
>
>
> --
> View this message in context:
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xt:
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If I understand correctly, you'd like to shortcut the execution when you reach the desirednumber of hits. Unfortunately, I don't think there's a graceful way to do that right now inCollector. To stop further collecting, you need to throw an IOException (or a subtype of it)and catc
I am not interested in the scores at all. My requirement is simple, I only
need the first 100 hits or the numHits I specify ( irrespective of there
scores). The collector should stop after collecting the numHits specified.
Is there a way to tell in the collector to stop after collecting the
This is how Collector works: it is called for every document matching
the query, and then its job is to choose which of those hits to keep.
This is because in general the hits to keep can come at any time, not
just the first N hits you see; e.g. the best scoring hit may be the
very last one.
But
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TopDocs topDocs = isearcher.search(query, null,
>1000);
>ScoreDoc[] docs = topDocs.scoreDocs;
>
>StringBuilder result = new StringBuilder();
>StringBuilder debugInfo = new StringBuilder();
>
;
> >> Mike McCandless
> >>
> >> http://blog.mikemccandless.com
> >>
> >>
> >> On Mon, Aug 12, 2013 at 1:20 PM, Lingviston
> >> wrote:
> >> > I think that's OK for me. I just need to know the right way to get
p://blog.mikemccandless.com
>>
>>
>> On Mon, Aug 12, 2013 at 1:20 PM, Lingviston
>> wrote:
>> > I think that's OK for me. I just need to know the right way to get them.
>> > Notice that queries must support boolean operators, *, ? and qoutes.
>> &
Aug 12, 2013 at 1:20 PM, Lingviston
> wrote:
> > I think that's OK for me. I just need to know the right way to get them.
> > Notice that queries must support boolean operators, *, ? and qoutes.
> >
> >
> >
> > --
> > View this message in context:
On Aug 13, 2013, at 12:55 PM, Michael McCandless wrote:
> I'm less familiar with the older highlighters but likely it's possible
> to get the absolute offsets from them as well.
Using vector highlighter I've achieved that by extending and cloning the code
of ScoreOrderFragmentsBuilder#makeFrag
ghter is similar to this? I mean here I have
custom Formatter and I need a custom one for PostingHighlighter too?
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ow the right way to get them.
> Notice that queries must support boolean operators, *, ? and qoutes.
>
>
>
> --
> View this message in context:
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> Sent from the Lucene
I think that's OK for me. I just need to know the right way to get them.
Notice that queries must support boolean operators, *, ? and qoutes.
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Sent fro
raw highlights by myself
> over the rendered pdf file (as far as I know lucene can't work with pdf by
> default).
>
> Yes, offsets is what I'm looking for.
>
>
>
> --
> View this message in context:
> http://lucene.472066.n3.nabble.com/How-to-get-hits-coordinates-in
Like I said I will work with pdf files. So I will draw highlights by myself
over the rendered pdf file (as far as I know lucene can't work with pdf by
default).
Yes, offsets is what I'm looking for.
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Query query = queryParser.parse(searchString);
> TopDocs topDocs = isearcher.search(query, null,
> 1000);
> ScoreDoc[] docs = topDocs.scoreDocs;
>
> StringBuilde
ScoreDoc[] docs = topDocs.scoreDocs;
StringBuilder result = new StringBuilder();
StringBuilder debugInfo = new StringBuilder();
debugInfo.append("Number of hits: ");
debugInfo.append(docs.length);
the input parameters do not make sense to me.
What are these objects for, and how does one build them?
--
Best Regards,
Igor Shalyminov
31.01.2013, 20:15, "Igor Shalyminov" :
> Hello!
>
> I want to perform a SpanQuery and get the precise overall number of all hits
> thro
Hello!
I want to perform a SpanQuery and get the precise overall number of all hits
throughout the entire index (i.e. if the query words combination appears
multiple times in a document, I need that number counted).
I've found a method called SpanQuery.getSpans, but the way of using it i
at I do not know why the search performance degrades when
> doc() is called within the Collector. Is it simply that Lucene will present,
> for example, thousands of candidate hits (from millions of indexed
> documents) to the Collector even though the collector might only return the
> top
ample, thousands of candidate hits (from millions of indexed documents)
to the Collector even though the collector might only return the top handful?
And so the Collector will need to load thousands of documents and it is this
document loading that causes the performance degradation? Or is it
ions -- one general and one specific.
>
> The specific question is how, in Lucene 3.x, can I filter the
> IndexSeacher.search() results based on stored fields within candidate hits?
> It is not acceptable to perform the filter post search as now my hits list
> is too short. In the past
.
The specific question is how, in Lucene 3.x, can I filter the
IndexSeacher.search() results based on stored fields within candidate
hits? It is not acceptable to perform the filter post search as now my
hits list is too short. In the past calling doc() during a search (with
my own collector
Great! I'll look into that.
Thanks!
2013/1/9 김한규
> Try SpanTermQuery, getSpans() function. It returns Spans object which you
> can iterate through to find position of every hits in every documents.
>
> http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/spans/S
Try SpanTermQuery, getSpans() function. It returns Spans object which you
can iterate through to find position of every hits in every documents.
http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/spans/SpanTermQuery.html
2013/1/9 Itai Peleg
> Hi,
>
> I'n new to L
worked like a charm!
thx!
From: Jack Krupansky [j...@basetechnology.com]
Sent: Thursday, June 14, 2012 3:30 PM
To: java-user@lucene.apache.org
Subject: Re: need to find locations of query hits in doc: works fine for
regular text but not for phone
-user@lucene.apache.org
Subject: RE: need to find locations of query hits in doc: works fine for
regular text but not for phone numbers
Uwe, sorry but I am having trouble understanding this. Can you point me to a
place in documentation that explains this in more detail (I've read
d) or some example code?
Thanks much,
Ilya
-Original Message-
From: Uwe Schindler [mailto:u...@thetaphi.de]
Sent: Thursday, June 14, 2012 12:57 PM
To: java-user@lucene.apache.org
Subject: RE: need to find locations of query hits in doc: works fine for
regular text but not for phone nu
: Subject: need to find locations of query hits in doc: works fine for regular
: text but not for phone numbers
: Message-ID:
: References: <1339635547170-3989548.p...@n3.nabble.com>
: In-Reply-To: <1339635547170-3989548.p...@n3.nabble.com>
https://people.apache.org/~hossman/#
.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: u...@thetaphi.de
> -Original Message-
> From: Ilya Zavorin [mailto:izavo...@caci.com]
> Sent: Thursday, June 14, 2012 6:49 PM
> To: java-user@lucene.apache.org
> Subject: RE: need to find locations of query hit
ngs of the query
reliably?
Thanks!
-Original Message-
From: Jack Krupansky [mailto:j...@basetechnology.com]
Sent: Wednesday, June 13, 2012 11:42 PM
To: java-user@lucene.apache.org
Subject: Re: need to find locations of query hits in doc: works fine for
regular text but not for phone
the
default field.
-- Jack Krupansky
-Original Message-
From: Ilya Zavorin
Sent: Wednesday, June 13, 2012 10:52 PM
To: java-user@lucene.apache.org
Subject: need to find locations of query hits in doc: works fine for regular
text but not for phone numbers
Hello All,
I am using 3.4. I need t
Hello All,
I am using 3.4. I need to find locations of query hits in a document. What I've
implemented works fine for textual queries but does not work for phone numbers.
Here's how I index my docs:
String oc = "Joe dialed 800-555-1212 but got a busy signal";
doc.add
On Sun, Feb 19, 2012 at 10:23 AM, Benson Margulies
wrote:
> thanks, that's what I needed.
>
Thanks for bringing this up, I think its a common issue, I created
https://issues.apache.org/jira/browse/LUCENE-3799 to hopefully improve
the docs situation.
--
lucidimagination.com
ge numbers here: if you are not actually returning pages
> of results to the user, but just counting hits, then pass
> TotalHitCountCollector.
>
> --
> lucidimagination.com
>
> -
> To unsubscribe,
the 2
million's result page, so pass a small number of top hits.
To simply count all hits like you seem to do, there is a separate collector
available: http://goo.gl/XsPVR
-
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: u...@thetaphi.de
> -
something like 20.
This is because it builds a priority queue of size _n_ to return
results in sorted order.
Don't pass huge numbers here: if you are not actually returning pages
of results to the user, but just counting hits, then pass
TotalHitCountCollect
If I have a lot of segments, and an executor service in my searcher,
the following runs out of memory instantly, building giant heaps. Is
there another way to express this? Should I file a JIRA that the
parallel code should have some graceful behavior?
int longestMentionFreq = searcher.search(long
> I last used dotLucene 143 and now I'm wanting to upgrade to 294.
>
> What I've discovered is that there are quite a few changes..
>
> One of them is in respect of Search. Previously one supplied a query and
> received a number of hits. I didn't have an issue with
Hi
I last used dotLucene 143 and now I'm wanting to upgrade to 294.
What I've discovered is that there are quite a few changes..
One of them is in respect of Search. Previously one supplied a query and
received a number of hits. I didn't have an issue with preservation of sta
> I am currently using lucene 2.4,
Time to upgrade?
> is there a way to count how many words from my query hits the post?
>
> Lets say my query is:
> APPLE OR BANANA OR ORANGE
>
>
> The post is:
> I have a banana, i love to eat banana and apple
>
> This case
Hi ,
I am currently using lucene 2.4, is there a way to count how many words from my
query hits the post?
Lets say my query is:
APPLE OR BANANA OR ORANGE
The post is:
I have a banana, i love to eat banana and apple
This case, banana keyword is hit twice and apple is hit once, is there a way
This (HashDocSet, and any other impls that handle the sparse case
well) could be useful to have in Lucene's core.
For example, for certain MultiTermQuerys we have this
CONSTANT_SCORE_AUTO_REWRITE, which has iffy smelling heuristics to try
to determine the best cutover point from
ConstantScoreQuer
On Tue, Apr 5, 2011 at 2:24 AM, Antony Bowesman wrote:
> Seems like SortedVIntList can be used to store the info, but it has no
> methods to build the list in the first place, requiring an array or bitset
> in the constructor.
It has a constructor that takes DocIdSetIterator - so you can pass an
I think Solr has a HashDocSet implementation?
On Tue, Apr 5, 2011 at 3:19 AM, Michael McCandless
wrote:
> Can we simply factor out (poach!) those useful-sounding classes from
> Nutch into Lucene?
>
> Mike
>
> http://blog.mikemccandless.com
>
> On Tue, Apr 5, 2011 at 2:24 AM, Antony Bowesman
> w
Can we simply factor out (poach!) those useful-sounding classes from
Nutch into Lucene?
Mike
http://blog.mikemccandless.com
On Tue, Apr 5, 2011 at 2:24 AM, Antony Bowesman wrote:
> I'm converting a Lucene 2.3.2 to 2.4.1 (with a view to going to 2.9.4).
>
> Many of our indexes are 5M+ Documents,
I'm converting a Lucene 2.3.2 to 2.4.1 (with a view to going to 2.9.4).
Many of our indexes are 5M+ Documents, however, only a small subset of these are
relevant to any user. As a DocIdSet, backed by a BitSet or OpenBitSet, is
rather inefficient in terms of memory use, what is the recommended
ccess to the values passed to the coord() method of the
Similarity in use for a search. Sounds hairy, maybe impossible.
--
Ian.
On Mon, Mar 14, 2011 at 2:52 PM, Michael Wiegand
wrote:
> Hi,
>
> Does Lucene always count the number of documents with hits matching a query
> or is it
Hi,
Does Lucene always count the number of documents with hits matching a
query or is it also possible to count the overall number of hits?
There would be a difference between the two if within a document there
is actually more than one hit.
Thank you in advance!
Best,
Michael
There are search methods that don't require a filter, but you are
right that there is nothing quite as simple as search(q).
>From http://www.gossamer-threads.com/lists/lucene/java-user/95032 you can use
TopDocs tp = ms.search(lucquery, 1);
And then the total count is in tp.totalHits
--
Ian.
O
Hi,
I am currently mainly interested in the overall number of matches in a
document collection (several GBs) given a particular query.
At the moment I am not interested in the matching documents themselves;
just the number would be sufficient.
In previous versions of lucene the Searcher class h
Grant Ingersoll apache.org> writes:
With a little logic on your size to count, you can use SpanQueries to do that.
-Grant
On Jan 21, 2011, at 4:03 PM, Sharma Kollaparthi wrote:
Hi ,
I have started to use Lucene for searching in HTML files. Is it
possible to get Hits
With a little logic on your size to count, you can use SpanQueries to do that.
-Grant
On Jan 21, 2011, at 4:03 PM, Sharma Kollaparthi wrote:
> Hi ,
>
> I have started to use Lucene for searching in HTML files. Is it
> possible to get Hits per document, when we search for
Hi ,
I have started to use Lucene for searching in HTML files. Is it
possible to get Hits per document, when we search for phrases like "Hello
World" and wild card searches like "te?t"?
I managed to return the number of hits per document if there is only one
term
Use Solr and look at faceting.
On Wed, Oct 20, 2010 at 9:12 AM, Bob Miller wrote:
> Dear all,
>
>
> I would like to use a tag cloud of keywords to narrow down the currently
> displayed search results. In order to implement this, it must be possible
> to
> determine the n
Dear all,
I would like to use a tag cloud of keywords to narrow down the currently
displayed search results. In order to implement this, it must be possible to
determine the number of hits for the current search query combined with each
keyword in the tag cloud. What would be the most
H, what analyzers are you using at index and query time? Are they
identical?
But I think your basic problem is phrases. Parsing text:"hello world"
expects
the words "hello" and "world" to appear sequentially in the text field. Try
something like title:(+hello +world). But depending upon how yo
Just to clarify some things that could be misunderstood.
First, I meant that I added two fields to a document which was then indexed,
not two separate documents.
Second, I noticed in the lucene mail archive that some additional charactes,
especially "*", had sneaked into my query examples. This w
Consider the following two documents which I have added to my index:
doc.add( new Field("text", "hello world", Field.Store.YES,
> Field.Index.ANALYZED));
> doc.add( new Field("id", "1", Field.Store.YES, Field.Index.ANALYZED));
>
Using the StandardQueryParser I can retrieve my document with eithe
nuss [mailto:andrew_n...@yahoo.com]
> Sent: Monday, June 21, 2010 2:44 PM
> To: java-user@lucene.apache.org
> Subject: RE: search hits not returned until I stop and restart application
>
>
> "Maybe you aren't using the IndexReader instance returned by reopen(), but
>
to be thrashing with a commit
after each one, and then a reopen of the reader and reconstruction of my
searcher. Do others manage this type of thing with a thread that fires at
intervals to commit if dirty?
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> -Original Message-
> From: andynuss [mailto:andrew_n...@yahoo.com]
> Sent: Monday, June 21, 2010 1:29 PM
> To: java-user@lucene.apache.org
> Subject: RE: search hits not returned until I stop and restart application
>
>
> "So you gotta call commit() or
(1) called the
IndexWriter singleton commit() function, (2) then called the IndexReader
singleton reopen() function (no arguments). (My IndexReader is read only.)
Still didn't find hits in that book. Then I tried (3) creating a new
IndexSearcher on top of this IndexReader and that also didn&#x
---
> From: andynuss [mailto:andrew_n...@yahoo.com]
> Sent: Monday, June 21, 2010 11:02 AM
> To: java-user@lucene.apache.org
> Subject: search hits not returned until I stop and restart application
>
>
> Hi,
>
> I have an IndexWriter singleton in my program, and an IndexSearc
Hi,
I have an IndexWriter singleton in my program, and an IndexSearcher
singleton based on a readonly IndexReader singleton. When I use the
IndexWriter to index a large document to lucene, and then, while the program
is still running, use my previously created IndexSearcher to find hits in
that
200
>
> ...
> --
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> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
> --
position 4 .
..
doc = 2345 position 200
...
--
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--
imply ..:)
> I try to rerank and want to know later exactly the original position in
> the hitlist..
>
> titus
> --
> View this message in context:
> http://lucene.472066.n3.nabble.com/Finding-the-position-of-search-hits-from-Lucene-tp885956p886146.html
> Sent from the Lu
ition-of-search-hits-from-Lucene-tp885956p886146.html
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