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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (SAMOA-78) Accept new values of a nominal attribute
Date Mon, 25 Nov 2019 21:13:00 GMT

     [ https://issues.apache.org/jira/browse/SAMOA-78?focusedWorklogId=349361&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-349361
]

ASF GitHub Bot logged work on SAMOA-78:
---------------------------------------

                Author: ASF GitHub Bot
            Created on: 25/Nov/19 21:12
            Start Date: 25/Nov/19 21:12
    Worklog Time Spent: 10m 
      Work Description: asfgit commented on pull request #75: SAMOA-78: Accept newly arriving
values of nominal attributes
URL: https://github.com/apache/incubator-samoa/pull/75
 
 
   
 
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Issue Time Tracking
-------------------

            Worklog Id:     (was: 349361)
    Remaining Estimate: 0h
            Time Spent: 10m

> 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
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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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