lucene-solr-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alessandro Benedetti <abenede...@apache.org>
Subject Re: Re: MoreLikeThis Component - how to get fields of documents
Date Mon, 09 May 2016 10:01:01 GMT
Hey Jan, any reason you are using the MLTComponent, instead of a specific
Request Handler with the MLT query parser ?

<requestHandler name="/getSimilar" class="solr.SearchHandler">
    <lst name="defaults">
        <!-- Query settings -->
        <str name="title">Entities Similarity</str>
        <str name="defType">edismax</str>
        <str name="rows">5</str>
        <str name="fl">*,score</str>
        <str name="echoParams">explicit</str>
        <str name="wt">json</str>
        <str name="q">{!mlt qf=field1,field2,field3,field4 mintf=1
mindf=5 maxqt=50 v=$entity_id}</str>
        <!-- Default Similarity Parameters-->
        <str name="entity_id">0</str>
    </lst>
</requestHandler>


This should solve easily your problems,

Cheers


On Mon, May 9, 2016 at 9:58 AM, Dr. Jan Frederik Maas <
jan.maas@sub.uni-hamburg.de> wrote:

> Hi Edwin,
>
> thanks for your reply - we currently use 5.0.0
>
> Best wishes,
> Jan
>
>
> Am 05.05.2016 um 05:26 schrieb Zheng Lin Edwin Yeo:
>
>> Hi Jan,
>>
>> Which version of Solr are you using?
>>
>> Regards,
>> Edwin
>>
>>
>> On 26 April 2016 at 23:46, Dr. Jan Frederik Maas <
>> jan.maas@sub.uni-hamburg.de> wrote:
>>
>> Hello,
>>>
>>> I want to use the moreLikeThis Component to get similar documents from a
>>> sharded SOLR. This works quite well except for the fact that the
>>> documents
>>> in the moreLikeThis-list only contain the id/unique key of the documents.
>>>
>>> Is it possible to get the other fields? I can of course do another query
>>> for the given IDs, but this would be complicated and very slow.
>>>
>>> For example:
>>>
>>>
>>>
>>> http://mysolrsystem/?q=id:524507260&mlt=true&mlt.fl=title&mlt.mintf=0&indent=true&mlt.match.include=true&fl=title,id,topic
>>>
>>> creates
>>>
>>> (...)
>>> <lst name="moreLikeThis">
>>> <result name="524507260" numFound="5" start="0" maxScore="4.583166">
>>> <doc><str name="id">646199803</str></doc>
>>> <doc><str name="id">613210832</str></doc>
>>> <doc><str name="id">562239472</str></doc>
>>> <doc><str name="id">819200034</str></doc>
>>> <doc><str name="id">539877271</str></doc>
>>> </result>
>>> (...)
>>>
>>> I tried to modify the fl-parameter, but I can only switch the ID-field in
>>> the moreLikeThis-Documents on and off (the latter resulting in empty
>>> document tags). In the result list however, the fl-fields are shown as
>>> specified.
>>>
>>> I would be very grateful for help.
>>>
>>> Best wishes,
>>> Jan Maas
>>>
>>>
>
> --
> Dr.-Ing. Jan Frederik Maas
> Staats- und Universitaetsbibliothek Hamburg Carl von Ossietzky
> IuK-Technik / Digitale Bibliothek / Entwicklung
> Fachreferent für Informatik, Technik
> Von-Melle-Park 3, 20146 Hamburg
> Telefon (040) 42838-6674 | Fax (040) 41345070
> Mail: maas@sub.uni-hamburg.de
> http://www.sub.uni-hamburg.de
>
>


-- 
--------------------------

Benedetti Alessandro
Visiting card : http://about.me/alessandro_benedetti

"Tyger, tyger burning bright
In the forests of the night,
What immortal hand or eye
Could frame thy fearful symmetry?"

William Blake - Songs of Experience -1794 England

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message