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Posted to solr-user@lucene.apache.org by Ahsan |qbal <ah...@gmail.com> on 2011/02/22 16:59:26 UTC
Question about Nested Span Near Query
Hi All
I had a requirement to implement queries that involves phrase proximity.
like user should be able to search "ab cd" w/5 "de fg", both phrases as
whole should be with in 5 words of each other. For this I implement a query
parser that make use of nested span queries, so above query would be parsed
as
spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
Queries like this seems to work really good when phrases are small but when
phrases are large this doesn't work fine. Now my question, Is there any
limitation of SpanNearQuery. that we cannot handle large phrases in this
way?
please help
Regards
Ahsan
Re: Question about Nested Span Near Query
Posted by William Bell <bi...@gmail.com>.
I am not 100% sure. But I why did you not use the standard confix for "text" ?
<fieldType name="text" class="solr.TextField"
positionIncrementGap="100" autoGeneratePhraseQueries="true">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<!-- in this example, we will only use synonyms at query time
<filter class="solr.SynonymFilterFactory"
synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
-->
<!-- Case insensitive stop word removal.
add enablePositionIncrements=true in both the index and query
analyzers to leave a 'gap' for more accurate phrase queries.
-->
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords.txt"
enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="1"
catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory"
synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords.txt"
enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="0"
catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
</fieldType>
You are using:
- <fieldtype name="text" class="solr.TextField">
- <analyzer>
<tokenizer class="solr.StandardTokenizerFactory"
luceneMatchVersion="LUCENE_29" />
<filter class="solr.StandardFilterFactory" />
<filter class="solr.LowerCaseFilterFactory" />
- <!--
<filter class="solr.StopFilterFactory" luceneMatchVersion="LUCENE_29"/>
<filter class="solr.EnglishPorterFilterFactory"/>
-->
</analyzer>
</fieldtype>
Can you try a more standard approach ?
solr.WhitespaceTokenizerFactory
solr.LowerCaseFilterFactory
??
Thanks.
On Mon, Feb 28, 2011 at 2:38 AM, Ahsan |qbal <ah...@gmail.com> wrote:
> Hi Bill
> Any update..
>
> On Thu, Feb 24, 2011 at 8:58 PM, Ahsan |qbal <ah...@gmail.com>
> wrote:
>>
>> Hi
>> schema and document are attached.
>>
>> On Thu, Feb 24, 2011 at 8:24 PM, Bill Bell <bi...@gmail.com> wrote:
>>>
>>> Send schema and document in XML format and I'll look at it
>>>
>>> Bill Bell
>>> Sent from mobile
>>>
>>>
>>> On Feb 24, 2011, at 7:26 AM, "Ahsan |qbal" <ah...@gmail.com>
>>> wrote:
>>>
>>> > Hi
>>> >
>>> > To narrow down the issue I indexed a single document with one of the
>>> > sample
>>> > queries (given below) which was giving issue.
>>> >
>>> > *"evaluation of loan and lease portfolios for purposes of assessing the
>>> > adequacy of" *
>>> >
>>> > Now when i Perform a search query (*TextContents:"evaluation of loan
>>> > and
>>> > lease portfolios for purposes of assessing the adequacy of"*) the
>>> > parsed
>>> > query is
>>> >
>>> >
>>> > *spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([Contents:evaluation,
>>> > Contents:of], 0, true), Contents:loan], 0, true), Contents:and], 0,
>>> > true),
>>> > Contents:lease], 0, true), Contents:portfolios], 0, true),
>>> > Contents:for], 0,
>>> > true), Contents:purposes], 0, true), Contents:of], 0, true),
>>> > Contents:assessing], 0, true), Contents:the], 0, true),
>>> > Contents:adequacy],
>>> > 0, true), Contents:of], 0, true)*
>>> >
>>> > and search is not successful.
>>> >
>>> > If I remove '*evaluation*' from start OR *'assessing the adequacy of*'
>>> > from
>>> > end it works fine. Issue seems to come on relatively long phrases but I
>>> > have
>>> > not been able to find a pattern and its really mind boggling coz I
>>> > thought
>>> > this issue might be due to large position list but this is a single
>>> > document
>>> > with one phrase. So its definitely not related to size of index.
>>> >
>>> > Any ideas whats going on??
>>> >
>>> > On Thu, Feb 24, 2011 at 10:25 AM, Ahsan |qbal
>>> > <ah...@gmail.com>wrote:
>>> >
>>> >> Hi
>>> >>
>>> >> It didn't search.. (means no results found even results exist) one
>>> >> observation is that it works well even in the long phrases but when
>>> >> the long
>>> >> phrases contain stop words and same stop word exist two or more time
>>> >> in the
>>> >> phrase then, solr can't search with query parsed in this way.
>>> >>
>>> >>
>>> >> On Wed, Feb 23, 2011 at 11:49 PM, Otis Gospodnetic <
>>> >> otis_gospodnetic@yahoo.com> wrote:
>>> >>
>>> >>> Hi,
>>> >>>
>>> >>> What do you mean by "this doesn't work fine"? Does it not work
>>> >>> correctly
>>> >>> or is
>>> >>> it slow or ...
>>> >>>
>>> >>> I was going to suggest you look at Surround QP, but it looks like you
>>> >>> already
>>> >>> did that. Wouldn't it be better to get Surround QP to work?
>>> >>>
>>> >>> Otis
>>> >>> ----
>>> >>> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
>>> >>> Lucene ecosystem search :: http://search-lucene.com/
>>> >>>
>>> >>>
>>> >>>
>>> >>> ----- Original Message ----
>>> >>>> From: Ahsan |qbal <ah...@gmail.com>
>>> >>>> To: solr-user@lucene.apache.org
>>> >>>> Sent: Tue, February 22, 2011 10:59:26 AM
>>> >>>> Subject: Question about Nested Span Near Query
>>> >>>>
>>> >>>> Hi All
>>> >>>>
>>> >>>> I had a requirement to implement queries that involves phrase
>>> >>> proximity.
>>> >>>> like user should be able to search "ab cd" w/5 "de fg", both
>>> >>>> phrases as
>>> >>>> whole should be with in 5 words of each other. For this I implement
>>> >>>> a
>>> >>> query
>>> >>>> parser that make use of nested span queries, so above query would
>>> >>>> be
>>> >>> parsed
>>> >>>> as
>>> >>>>
>>> >>>> spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
>>> >>>> spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
>>> >>>>
>>> >>>> Queries like this seems to work really good when phrases are small
>>> >>>> but
>>> >>> when
>>> >>>> phrases are large this doesn't work fine. Now my question, Is there
>>> >>>> any
>>> >>>> limitation of SpanNearQuery. that we cannot handle large phrases in
>>> >>> this
>>> >>>> way?
>>> >>>>
>>> >>>> please help
>>> >>>>
>>> >>>> Regards
>>> >>>> Ahsan
>>> >>>>
>>> >>>
>>> >>
>>> >>
>>
>
>
Re: Question about Nested Span Near Query
Posted by Ahsan |qbal <ah...@gmail.com>.
Hi Bill
Any update..
On Thu, Feb 24, 2011 at 8:58 PM, Ahsan |qbal <ah...@gmail.com>wrote:
> Hi
>
> schema and document are attached.
>
>
> On Thu, Feb 24, 2011 at 8:24 PM, Bill Bell <bi...@gmail.com> wrote:
>
>> Send schema and document in XML format and I'll look at it
>>
>> Bill Bell
>> Sent from mobile
>>
>>
>> On Feb 24, 2011, at 7:26 AM, "Ahsan |qbal" <ah...@gmail.com>
>> wrote:
>>
>> > Hi
>> >
>> > To narrow down the issue I indexed a single document with one of the
>> sample
>> > queries (given below) which was giving issue.
>> >
>> > *"evaluation of loan and lease portfolios for purposes of assessing the
>> > adequacy of" *
>> >
>> > Now when i Perform a search query (*TextContents:"evaluation of loan and
>> > lease portfolios for purposes of assessing the adequacy of"*) the parsed
>> > query is
>> >
>> >
>> *spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([Contents:evaluation,
>> > Contents:of], 0, true), Contents:loan], 0, true), Contents:and], 0,
>> true),
>> > Contents:lease], 0, true), Contents:portfolios], 0, true),
>> Contents:for], 0,
>> > true), Contents:purposes], 0, true), Contents:of], 0, true),
>> > Contents:assessing], 0, true), Contents:the], 0, true),
>> Contents:adequacy],
>> > 0, true), Contents:of], 0, true)*
>> >
>> > and search is not successful.
>> >
>> > If I remove '*evaluation*' from start OR *'assessing the adequacy of*'
>> from
>> > end it works fine. Issue seems to come on relatively long phrases but I
>> have
>> > not been able to find a pattern and its really mind boggling coz I
>> thought
>> > this issue might be due to large position list but this is a single
>> document
>> > with one phrase. So its definitely not related to size of index.
>> >
>> > Any ideas whats going on??
>> >
>> > On Thu, Feb 24, 2011 at 10:25 AM, Ahsan |qbal <ahsan.iqbal023@gmail.com
>> >wrote:
>> >
>> >> Hi
>> >>
>> >> It didn't search.. (means no results found even results exist) one
>> >> observation is that it works well even in the long phrases but when the
>> long
>> >> phrases contain stop words and same stop word exist two or more time in
>> the
>> >> phrase then, solr can't search with query parsed in this way.
>> >>
>> >>
>> >> On Wed, Feb 23, 2011 at 11:49 PM, Otis Gospodnetic <
>> >> otis_gospodnetic@yahoo.com> wrote:
>> >>
>> >>> Hi,
>> >>>
>> >>> What do you mean by "this doesn't work fine"? Does it not work
>> correctly
>> >>> or is
>> >>> it slow or ...
>> >>>
>> >>> I was going to suggest you look at Surround QP, but it looks like you
>> >>> already
>> >>> did that. Wouldn't it be better to get Surround QP to work?
>> >>>
>> >>> Otis
>> >>> ----
>> >>> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
>> >>> Lucene ecosystem search :: http://search-lucene.com/
>> >>>
>> >>>
>> >>>
>> >>> ----- Original Message ----
>> >>>> From: Ahsan |qbal <ah...@gmail.com>
>> >>>> To: solr-user@lucene.apache.org
>> >>>> Sent: Tue, February 22, 2011 10:59:26 AM
>> >>>> Subject: Question about Nested Span Near Query
>> >>>>
>> >>>> Hi All
>> >>>>
>> >>>> I had a requirement to implement queries that involves phrase
>> >>> proximity.
>> >>>> like user should be able to search "ab cd" w/5 "de fg", both phrases
>> as
>> >>>> whole should be with in 5 words of each other. For this I implement
>> a
>> >>> query
>> >>>> parser that make use of nested span queries, so above query would be
>> >>> parsed
>> >>>> as
>> >>>>
>> >>>> spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
>> >>>> spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
>> >>>>
>> >>>> Queries like this seems to work really good when phrases are small
>> but
>> >>> when
>> >>>> phrases are large this doesn't work fine. Now my question, Is there
>> any
>> >>>> limitation of SpanNearQuery. that we cannot handle large phrases in
>> >>> this
>> >>>> way?
>> >>>>
>> >>>> please help
>> >>>>
>> >>>> Regards
>> >>>> Ahsan
>> >>>>
>> >>>
>> >>
>> >>
>>
>
>
Re: Question about Nested Span Near Query
Posted by Ahsan |qbal <ah...@gmail.com>.
Hi
schema and document are attached.
On Thu, Feb 24, 2011 at 8:24 PM, Bill Bell <bi...@gmail.com> wrote:
> Send schema and document in XML format and I'll look at it
>
> Bill Bell
> Sent from mobile
>
>
> On Feb 24, 2011, at 7:26 AM, "Ahsan |qbal" <ah...@gmail.com>
> wrote:
>
> > Hi
> >
> > To narrow down the issue I indexed a single document with one of the
> sample
> > queries (given below) which was giving issue.
> >
> > *"evaluation of loan and lease portfolios for purposes of assessing the
> > adequacy of" *
> >
> > Now when i Perform a search query (*TextContents:"evaluation of loan and
> > lease portfolios for purposes of assessing the adequacy of"*) the parsed
> > query is
> >
> >
> *spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([Contents:evaluation,
> > Contents:of], 0, true), Contents:loan], 0, true), Contents:and], 0,
> true),
> > Contents:lease], 0, true), Contents:portfolios], 0, true), Contents:for],
> 0,
> > true), Contents:purposes], 0, true), Contents:of], 0, true),
> > Contents:assessing], 0, true), Contents:the], 0, true),
> Contents:adequacy],
> > 0, true), Contents:of], 0, true)*
> >
> > and search is not successful.
> >
> > If I remove '*evaluation*' from start OR *'assessing the adequacy of*'
> from
> > end it works fine. Issue seems to come on relatively long phrases but I
> have
> > not been able to find a pattern and its really mind boggling coz I
> thought
> > this issue might be due to large position list but this is a single
> document
> > with one phrase. So its definitely not related to size of index.
> >
> > Any ideas whats going on??
> >
> > On Thu, Feb 24, 2011 at 10:25 AM, Ahsan |qbal <ahsan.iqbal023@gmail.com
> >wrote:
> >
> >> Hi
> >>
> >> It didn't search.. (means no results found even results exist) one
> >> observation is that it works well even in the long phrases but when the
> long
> >> phrases contain stop words and same stop word exist two or more time in
> the
> >> phrase then, solr can't search with query parsed in this way.
> >>
> >>
> >> On Wed, Feb 23, 2011 at 11:49 PM, Otis Gospodnetic <
> >> otis_gospodnetic@yahoo.com> wrote:
> >>
> >>> Hi,
> >>>
> >>> What do you mean by "this doesn't work fine"? Does it not work
> correctly
> >>> or is
> >>> it slow or ...
> >>>
> >>> I was going to suggest you look at Surround QP, but it looks like you
> >>> already
> >>> did that. Wouldn't it be better to get Surround QP to work?
> >>>
> >>> Otis
> >>> ----
> >>> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
> >>> Lucene ecosystem search :: http://search-lucene.com/
> >>>
> >>>
> >>>
> >>> ----- Original Message ----
> >>>> From: Ahsan |qbal <ah...@gmail.com>
> >>>> To: solr-user@lucene.apache.org
> >>>> Sent: Tue, February 22, 2011 10:59:26 AM
> >>>> Subject: Question about Nested Span Near Query
> >>>>
> >>>> Hi All
> >>>>
> >>>> I had a requirement to implement queries that involves phrase
> >>> proximity.
> >>>> like user should be able to search "ab cd" w/5 "de fg", both phrases
> as
> >>>> whole should be with in 5 words of each other. For this I implement a
> >>> query
> >>>> parser that make use of nested span queries, so above query would be
> >>> parsed
> >>>> as
> >>>>
> >>>> spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
> >>>> spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
> >>>>
> >>>> Queries like this seems to work really good when phrases are small
> but
> >>> when
> >>>> phrases are large this doesn't work fine. Now my question, Is there
> any
> >>>> limitation of SpanNearQuery. that we cannot handle large phrases in
> >>> this
> >>>> way?
> >>>>
> >>>> please help
> >>>>
> >>>> Regards
> >>>> Ahsan
> >>>>
> >>>
> >>
> >>
>
Re: Question about Nested Span Near Query
Posted by Bill Bell <bi...@gmail.com>.
Send schema and document in XML format and I'll look at it
Bill Bell
Sent from mobile
On Feb 24, 2011, at 7:26 AM, "Ahsan |qbal" <ah...@gmail.com> wrote:
> Hi
>
> To narrow down the issue I indexed a single document with one of the sample
> queries (given below) which was giving issue.
>
> *"evaluation of loan and lease portfolios for purposes of assessing the
> adequacy of" *
>
> Now when i Perform a search query (*TextContents:"evaluation of loan and
> lease portfolios for purposes of assessing the adequacy of"*) the parsed
> query is
>
> *spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([Contents:evaluation,
> Contents:of], 0, true), Contents:loan], 0, true), Contents:and], 0, true),
> Contents:lease], 0, true), Contents:portfolios], 0, true), Contents:for], 0,
> true), Contents:purposes], 0, true), Contents:of], 0, true),
> Contents:assessing], 0, true), Contents:the], 0, true), Contents:adequacy],
> 0, true), Contents:of], 0, true)*
>
> and search is not successful.
>
> If I remove '*evaluation*' from start OR *'assessing the adequacy of*' from
> end it works fine. Issue seems to come on relatively long phrases but I have
> not been able to find a pattern and its really mind boggling coz I thought
> this issue might be due to large position list but this is a single document
> with one phrase. So its definitely not related to size of index.
>
> Any ideas whats going on??
>
> On Thu, Feb 24, 2011 at 10:25 AM, Ahsan |qbal <ah...@gmail.com>wrote:
>
>> Hi
>>
>> It didn't search.. (means no results found even results exist) one
>> observation is that it works well even in the long phrases but when the long
>> phrases contain stop words and same stop word exist two or more time in the
>> phrase then, solr can't search with query parsed in this way.
>>
>>
>> On Wed, Feb 23, 2011 at 11:49 PM, Otis Gospodnetic <
>> otis_gospodnetic@yahoo.com> wrote:
>>
>>> Hi,
>>>
>>> What do you mean by "this doesn't work fine"? Does it not work correctly
>>> or is
>>> it slow or ...
>>>
>>> I was going to suggest you look at Surround QP, but it looks like you
>>> already
>>> did that. Wouldn't it be better to get Surround QP to work?
>>>
>>> Otis
>>> ----
>>> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
>>> Lucene ecosystem search :: http://search-lucene.com/
>>>
>>>
>>>
>>> ----- Original Message ----
>>>> From: Ahsan |qbal <ah...@gmail.com>
>>>> To: solr-user@lucene.apache.org
>>>> Sent: Tue, February 22, 2011 10:59:26 AM
>>>> Subject: Question about Nested Span Near Query
>>>>
>>>> Hi All
>>>>
>>>> I had a requirement to implement queries that involves phrase
>>> proximity.
>>>> like user should be able to search "ab cd" w/5 "de fg", both phrases as
>>>> whole should be with in 5 words of each other. For this I implement a
>>> query
>>>> parser that make use of nested span queries, so above query would be
>>> parsed
>>>> as
>>>>
>>>> spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
>>>> spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
>>>>
>>>> Queries like this seems to work really good when phrases are small but
>>> when
>>>> phrases are large this doesn't work fine. Now my question, Is there any
>>>> limitation of SpanNearQuery. that we cannot handle large phrases in
>>> this
>>>> way?
>>>>
>>>> please help
>>>>
>>>> Regards
>>>> Ahsan
>>>>
>>>
>>
>>
Re: Question about Nested Span Near Query
Posted by Ahsan |qbal <ah...@gmail.com>.
Hi
To narrow down the issue I indexed a single document with one of the sample
queries (given below) which was giving issue.
*"evaluation of loan and lease portfolios for purposes of assessing the
adequacy of" *
Now when i Perform a search query (*TextContents:"evaluation of loan and
lease portfolios for purposes of assessing the adequacy of"*) the parsed
query is
*spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([spanNear([Contents:evaluation,
Contents:of], 0, true), Contents:loan], 0, true), Contents:and], 0, true),
Contents:lease], 0, true), Contents:portfolios], 0, true), Contents:for], 0,
true), Contents:purposes], 0, true), Contents:of], 0, true),
Contents:assessing], 0, true), Contents:the], 0, true), Contents:adequacy],
0, true), Contents:of], 0, true)*
and search is not successful.
If I remove '*evaluation*' from start OR *'assessing the adequacy of*' from
end it works fine. Issue seems to come on relatively long phrases but I have
not been able to find a pattern and its really mind boggling coz I thought
this issue might be due to large position list but this is a single document
with one phrase. So its definitely not related to size of index.
Any ideas whats going on??
On Thu, Feb 24, 2011 at 10:25 AM, Ahsan |qbal <ah...@gmail.com>wrote:
> Hi
>
> It didn't search.. (means no results found even results exist) one
> observation is that it works well even in the long phrases but when the long
> phrases contain stop words and same stop word exist two or more time in the
> phrase then, solr can't search with query parsed in this way.
>
>
> On Wed, Feb 23, 2011 at 11:49 PM, Otis Gospodnetic <
> otis_gospodnetic@yahoo.com> wrote:
>
>> Hi,
>>
>> What do you mean by "this doesn't work fine"? Does it not work correctly
>> or is
>> it slow or ...
>>
>> I was going to suggest you look at Surround QP, but it looks like you
>> already
>> did that. Wouldn't it be better to get Surround QP to work?
>>
>> Otis
>> ----
>> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
>> Lucene ecosystem search :: http://search-lucene.com/
>>
>>
>>
>> ----- Original Message ----
>> > From: Ahsan |qbal <ah...@gmail.com>
>> > To: solr-user@lucene.apache.org
>> > Sent: Tue, February 22, 2011 10:59:26 AM
>> > Subject: Question about Nested Span Near Query
>> >
>> > Hi All
>> >
>> > I had a requirement to implement queries that involves phrase
>> proximity.
>> > like user should be able to search "ab cd" w/5 "de fg", both phrases as
>> > whole should be with in 5 words of each other. For this I implement a
>> query
>> > parser that make use of nested span queries, so above query would be
>> parsed
>> > as
>> >
>> > spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
>> > spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
>> >
>> > Queries like this seems to work really good when phrases are small but
>> when
>> > phrases are large this doesn't work fine. Now my question, Is there any
>> > limitation of SpanNearQuery. that we cannot handle large phrases in
>> this
>> > way?
>> >
>> > please help
>> >
>> > Regards
>> > Ahsan
>> >
>>
>
>
Re: Question about Nested Span Near Query
Posted by Ahsan |qbal <ah...@gmail.com>.
Hi
It didn't search.. (means no results found even results exist) one
observation is that it works well even in the long phrases but when the long
phrases contain stop words and same stop word exist two or more time in the
phrase then, solr can't search with query parsed in this way.
On Wed, Feb 23, 2011 at 11:49 PM, Otis Gospodnetic <
otis_gospodnetic@yahoo.com> wrote:
> Hi,
>
> What do you mean by "this doesn't work fine"? Does it not work correctly
> or is
> it slow or ...
>
> I was going to suggest you look at Surround QP, but it looks like you
> already
> did that. Wouldn't it be better to get Surround QP to work?
>
> Otis
> ----
> Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
> Lucene ecosystem search :: http://search-lucene.com/
>
>
>
> ----- Original Message ----
> > From: Ahsan |qbal <ah...@gmail.com>
> > To: solr-user@lucene.apache.org
> > Sent: Tue, February 22, 2011 10:59:26 AM
> > Subject: Question about Nested Span Near Query
> >
> > Hi All
> >
> > I had a requirement to implement queries that involves phrase proximity.
> > like user should be able to search "ab cd" w/5 "de fg", both phrases as
> > whole should be with in 5 words of each other. For this I implement a
> query
> > parser that make use of nested span queries, so above query would be
> parsed
> > as
> >
> > spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
> > spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
> >
> > Queries like this seems to work really good when phrases are small but
> when
> > phrases are large this doesn't work fine. Now my question, Is there any
> > limitation of SpanNearQuery. that we cannot handle large phrases in this
> > way?
> >
> > please help
> >
> > Regards
> > Ahsan
> >
>
Re: Question about Nested Span Near Query
Posted by Otis Gospodnetic <ot...@yahoo.com>.
Hi,
What do you mean by "this doesn't work fine"? Does it not work correctly or is
it slow or ...
I was going to suggest you look at Surround QP, but it looks like you already
did that. Wouldn't it be better to get Surround QP to work?
Otis
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----- Original Message ----
> From: Ahsan |qbal <ah...@gmail.com>
> To: solr-user@lucene.apache.org
> Sent: Tue, February 22, 2011 10:59:26 AM
> Subject: Question about Nested Span Near Query
>
> Hi All
>
> I had a requirement to implement queries that involves phrase proximity.
> like user should be able to search "ab cd" w/5 "de fg", both phrases as
> whole should be with in 5 words of each other. For this I implement a query
> parser that make use of nested span queries, so above query would be parsed
> as
>
> spanNear([spanNear([Contents:ab, Contents:cd], 0, true),
> spanNear([Contents:de, Contents:fg], 0, true)], 5, false)
>
> Queries like this seems to work really good when phrases are small but when
> phrases are large this doesn't work fine. Now my question, Is there any
> limitation of SpanNearQuery. that we cannot handle large phrases in this
> way?
>
> please help
>
> Regards
> Ahsan
>