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https://issues.apache.org/jira/browse/MAHOUT-271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12913370#action_12913370
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Joe Prasanna Kumar commented on MAHOUT-271:
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Hi Olivier,
I was just looking at this issue to see if I can write a patch.
In WikipediaDatasetCreatorMapper, we check to see if the exactMatchOnly option
is specified; if so we check if the Set of Strings (inputCategories) contains
the desired category like below
// inputCategories is a Set<String>
if (exactMatchOnly && inputCategories.contains(category)) {
return category;
}
If not (ie if the exactMatchOnly is not specified), only then we are using
"category.contains(inputCategory)"
We should not be using a word boundary and restricting the match to an exact
word since the condition itself is that the exactMatchOnly is not set. so
whatever code we currently have looks good.
I am trying to find out what the actual issue is ?!
reg,
Joe.
> Make WikipediaDatasetCreatorMapper fuzzy category match respect word
> boundaries
> -------------------------------------------------------------------------------
>
> Key: MAHOUT-271
> URL: https://issues.apache.org/jira/browse/MAHOUT-271
> Project: Mahout
> Issue Type: Improvement
> Components: Classification
> Affects Versions: 0.2
> Reporter: Olivier Grisel
> Assignee: Olivier Grisel
> Priority: Trivial
> Fix For: 0.4
>
>
> WikipediaDatasetCreatorDriver is useful to create categorisation corpora out
> of wikipedia, however the category match just do a String#contains check
> which can catch a lot of unrelated categories.
> Checking the word boundaries with a regexp such as String.format("\\b%s\\b",
> theCategoryNameIAmLookingFor); should fix the issue.
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