Joel Bernstein created SOLR-12272:
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             Summary: Create Stream Evaluators for distance measures
                 Key: SOLR-12272
                 URL: https://issues.apache.org/jira/browse/SOLR-12272
             Project: Solr
          Issue Type: New Feature
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Joel Bernstein


Currently distance measures are instantiated by passing the name of the 
distance measure to a function, for example the *knn* function can be passed 
the named parameter: distance="manhattan". 

This ticket will create a specific function for each distance measure which 
will be used to specify which distance measure to apply. With this design the 
*knn* function would be passed the function: manhattan() or any of the other 
distance measure functions.

 

 



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