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From "Maciej Grzenda (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SAMOA-78) Accept new values of a nominal attribute
Date Mon, 11 Dec 2017 14:41:01 GMT
Maciej Grzenda created SAMOA-78:
-----------------------------------

             Summary: Accept new values of a nominal attribute
                 Key: SAMOA-78
                 URL: https://issues.apache.org/jira/browse/SAMOA-78
             Project: SAMOA
          Issue Type: New Feature
          Components: SAMOA-Instances
            Reporter: Maciej Grzenda


As of now, Attribute class assumes all values of a nominal attribute are defined before stream
processing starts. However, in case stream data evolves, for some attributes the complete
list of attribute values may not be known at the beginning. Hence, apart from declaring a
priori all attribute values e.g. in ARFF header, it sounds reasonable to gradually add new
attribute values once they are encountered in the instances. 



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