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Posted to dev@mahout.apache.org by "Ikumasa Mukai (Commented) (JIRA)" <ji...@apache.org> on 2011/12/13 04:59:31 UTC
[jira] [Commented] (MAHOUT-926) Adding the Tree/Forest Visualizer
[ https://issues.apache.org/jira/browse/MAHOUT-926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168117#comment-13168117 ]
Ikumasa Mukai commented on MAHOUT-926:
--------------------------------------
We can get the result like this.
i. iris - classification
{noformat}petallength < 3.3 : Iris-setosa
petallength >= 3.3
| petalwidth < 1.8
| | petallength < 5
| | | petalwidth < 1.7 : Iris-versicolor
| | | petalwidth >= 1.7 : Iris-virginica
| | petallength >= 5
| | | petalwidth < 1.6 : Iris-virginica
| | | petalwidth >= 1.6
| | | | sepallength < 7.2 : Iris-versicolor
| | | | sepallength >= 7.2 : Iris-virginica
| petalwidth >= 1.8
| | petallength < 4.9
| | | sepallength < 6 : Iris-versicolor
| | | sepallength >= 6 : Iris-virginica
| | petallength >= 4.9 : Iris-virginica
{noformat}
ii. cars - regression
{noformat}speed < 30
| speed < 12
| | speed < 3 : 4
| | speed >= 3
| | | speed < 7 : 7
| | | speed >= 7 : 6.5
| speed >= 12
| | speed < 23
| | | speed < 21
| | | | speed < 19
| | | | | speed < 15 : 12
| | | | | speed >= 15
| | | | | | speed < 16.5 : 8
| | | | | | speed >= 16.5
| | | | | | | speed < 17.5 : 11
| | | | | | | speed >= 17.5 : 10
| | | | speed >= 19 : 13.5
| | | speed >= 21 : 7
| | speed >= 23
| | | speed < 27
| | | | speed < 25 : 12
| | | | speed >= 25 : 13
| | | speed >= 27 : 11.5
speed >= 30
| speed < 84.5
---snip---
{noformat}
> Adding the Tree/Forest Visualizer
> ---------------------------------
>
> Key: MAHOUT-926
> URL: https://issues.apache.org/jira/browse/MAHOUT-926
> Project: Mahout
> Issue Type: Improvement
> Components: Classification
> Reporter: Ikumasa Mukai
> Labels: test
>
> TreePrinter and ForestPrinter are made for checking the model on MAHOUT-840.
> I think they are useful for checking the model and making unit testing.
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