UIMA integration with Solr

Solr can also be integrated with Apache UIMA (short for Unstructured Information Management Architecture), which can be used to define a custom pipeline to add metadata to documents.

Note

More information about Solr UIMA integration can be found at https://wiki.apache.org/solr/SolrUIMA.

In Solr, UIMA can be configured by following these steps:

1. In solrconfig.xml, we can add the following libraries:

   <lib dir="../../contrib/uima/lib" />
   <lib dir="../../dist/" regex="solr-uima-\d.*\.jar" />

2. After adding the libraries, we can add the following fields to schema.xml, which will contain the language, concept, and sentence fields:

   <field name="language" type="string" indexed="true" stored="true" required="false"/>
   <field name="concept" type="string" indexed="true" stored="true" multiValued="true" required="false"/>
   <field name="sentence" type="text" indexed="true" stored="true" multiValued="true" required="false" />

3. After adding these fields, we'll...