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https://issues.apache.org/jira/browse/MAHOUT-964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suneel Marthi updated MAHOUT-964:
---------------------------------
Description:
1. If an invalid Similarity Measure has been specified as input to the
RowSimilarityJob, it presently throws a ClassNotFoundException but still
proceeds with executing all of the subsequent tasks - VectorNormalizer,
Cooccurrences Mapper and UnSymmetrify Mapper. We should exit the process early
without having to invoke all of the subsequent tasks (all of them fail anyways).
2. It would be nice to have an --overwrite option for the Command line
interface which would delete the temp and output paths at the beginning of
RowSimilarityJob execution, similar to what's being done in seq2sparse,
seqdirectory. If I run RowSimilarityJob over and over again with different
similarity measures, I should not be forced to delete my temp and output paths
first prior to invoking the job.
was:
1. If an invalid Similarity Measure has been specified as input to the
RowSimilarityJob, it presently throws a ClassCastException but still proceeds
with executing all of the subsequent tasks - VectorNormalizer, Cooccurrences
Mapper and UnSymmetrify Mapper. We should exit the process early without having
to invoke all of the subsequent tasks (all of them fail anyways).
2. It would be nice to have an --overwrite option for the Command line
interface which would delete the temp and output paths at the beginning of
RowSimilarityJob execution, similar to what's being done in seq2sparse,
seqdirectory. If I run RowSimilarityJob over and over again with different
similarity measures, I should not be forced to delete my temp and output paths
first prior to invoking the job.
> RowSimilarityJob should exit immediately if an invalid similarity measure
> specified and it would be nice to have an --overwrite option for the
> RowSimilarityJob CLI
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-964
> URL: https://issues.apache.org/jira/browse/MAHOUT-964
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Affects Versions: 0.6
> Environment: Mahout 0.6 snapshot from trunk
> Reporter: Suneel Marthi
> Attachments: Mahout-964.patch
>
>
> 1. If an invalid Similarity Measure has been specified as input to the
> RowSimilarityJob, it presently throws a ClassNotFoundException but still
> proceeds with executing all of the subsequent tasks - VectorNormalizer,
> Cooccurrences Mapper and UnSymmetrify Mapper. We should exit the process
> early without having to invoke all of the subsequent tasks (all of them fail
> anyways).
> 2. It would be nice to have an --overwrite option for the Command line
> interface which would delete the temp and output paths at the beginning of
> RowSimilarityJob execution, similar to what's being done in seq2sparse,
> seqdirectory. If I run RowSimilarityJob over and over again with different
> similarity measures, I should not be forced to delete my temp and output
> paths first prior to invoking the job.
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