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From "Karol Grzegorczyk (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAHOUT-1555) Exception thrown when a test example has the label not present in training examples
Date Mon, 26 May 2014 07:02:02 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karol Grzegorczyk updated MAHOUT-1555:
--------------------------------------

    Attachment:     (was: test_label_not_present_in_training_examples.diff)

> Exception thrown when a test example has the label not present in training examples
> -----------------------------------------------------------------------------------
>
>                 Key: MAHOUT-1555
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1555
>             Project: Mahout
>          Issue Type: Bug
>          Components: Classification
>    Affects Versions: 1.0
>            Reporter: Karol Grzegorczyk
>            Priority: Minor
>             Fix For: 1.0
>
>         Attachments: test_label_not_present_in_training_examples.diff
>
>
> Currently an IllegalArgumentException is thrown when a test example has the label (belongs
to the class) not present in training examples. When the number of labels is big, such a situation
is likely and valid. The example of course will be misclassified, but exception should not
be thrown. 



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