[SOLR-8871] Classification Update Request Processor Improvements

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.1
• Fix Version/s: 6.4
• Component/s: update
• Labels: classification classifier update update.chain
• Assignee: Tommaso Teofili
• Reporter: Alessandro Benedetti
• Created: 18/Mar/16 19:02
• Updated: 05/Dec/16 15:17
• Resolved: 05/Dec/16 15:17

Description

This task will group a set of modifications to the classification update reqeust processor ( and Lucene classification module), based on user's feedback ( thanks Tommaso Teofili and Александър Цветанов ) :

• include boosting support for inputFields in the solrconfig.xml for the classification update request processor
  e.g.
  field1^2, field2^5 ...

• multi class assignement ( introduce a parameter, default 1, for the max number of class to assign)

• separate the classField in :
  classTrainingField
  classOutputField
  Default when classOutputField is not defined, is classTrainingField .

• add support for the classification query, to use only a subset of the entire index to classify.
• Improve Related Tests

Issue Links

• is related to: LUCENE-7116 Document Classifiers to handle numeric fields
• relates to: SOLR-7739 Lucene Classification Integration - UpdateRequestProcessor