Solr / Carrot2集成

Question

SOlr/Carrot2 Integration

i have multiple text files for each i created XML to index document on Solr as bellow

<add>
  <doc>
    <person>data </person>
    <organization>data here </organization>
    <content>Some spanish text here</content >
  </doc>
<add>

Schema used in Indexing

<field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" />    
<field name="person" type="string"  indexed="true" stored="true" required="true" multiValued="true" />
<field name="orgnization" type="string" indexed="true" stored="true" required="true" multiValued="true"   />
<field name="content" type="text_es" indexed="true" stored="true" multiValued="true"/>  
<field name="location" type="string"  indexed="true" stored="true" required="true" multiValued="true" />

Now i am trying to integrate carrot2 clustering ,for that i followed this link http://carrot2.github.io/solr-integration-strategies/carrot2-3.8.0/index.html

My Problem is as a result of cluster query i am getting only one cluster as bellow

<arr name="clusters">
  <lst>
<arr name="labels">
  <str>Other Topics</str>
    </arr>
    <double name="score">0.0</double>
    <bool name="other-topics">true</bool>
    <arr name="docs">
      <str>#.txt</str>
      <str>abci-britanicos-pizzerias-201312120250.txt</str>
      <str>abci-arqueologos-israelis-descubren-primer-201312111303.txt</str>
      <str>abci-autoridad-fiscal-pensiones-201312111956.txt</str>
      <str>abci-buenas-razones-para-cambiar-201312110933.txt</str>
      <str>abci-audio-asamblea-aserpinto-201312112139.txt</str>
      <
    </arr>
  </lst>
  </arr>

i should get more cluster My corpus contain 60 text documents

Answer 1

In order for search results clustering to work in Solr, the title and content fields you pass for clustering must be stored. The declaration in Solr schema could look like this:

<field name="content" type="text" indexed="true" stored="true" />

Answer 2

In addition to what Stanislaw said about fields being stored, please provide the query you used for clustering and, ideally, the full schema used to index your data.

If you have a mere 60 documents in your index and the query matches a small subset of documents then there will be nothing to cluster on.