[jira] [Created] (STANBOL-1089) Provide Topic Engine SolrConfiguration that do us n-grams

["Rupert Westenthaler (JIRA)" <ji...@apache.org>]

Rupert Westenthaler created STANBOL-1089:
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             Summary: Provide Topic Engine SolrConfiguration that do us n-grams
                 Key: STANBOL-1089
                 URL: https://issues.apache.org/jira/browse/STANBOL-1089
             Project: Stanbol
          Issue Type: New Feature
          Components: Enhancement Engines
            Reporter: Rupert Westenthaler
            Assignee: Rupert Westenthaler


With the Topic Classification Engine now supporting to configure different SolrCore configurations we should provide a configuration that does use n-grams for topic classification.

While this will not scale for very big classification schemes is should provide improvements to small and medium sized models.

Indexing of n-grams will be based on the Solr ShingleFilterFactory [1].

The SolrCore configuration will be provided by the name 'shingle-topic-model.solrindex.zip' by the Topic ClassificationEngine bundle to the DataFileProvider. This means that users will need to configure this name with the 'org.apache.stanbol.enhancer.engine.topic.solrCoreConfig' of the TopicClassificationEngine. This property was added by STANBOL-1087


[1] http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters#solr.ShingleFilterFactory

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