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https://issues.apache.org/jira/browse/TIKA-209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711333#action_12711333
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Robert Newson commented on TIKA-209:
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Sure thing. I adapted the Nutch code for my project, it should be
straightforward to do the same for Tika. It's all Apache licensed.
It'll be a few days, swamped with other stuff.
> Language detection is weak.
> ---------------------------
>
> Key: TIKA-209
> URL: https://issues.apache.org/jira/browse/TIKA-209
> Project: Tika
> Issue Type: Bug
> Affects Versions: 0.3
> Reporter: Robert Newson
>
> in org.apache.tika.utils.Utils the getUTF8Reader method assigns a language
> determination without checking the confidence rating from ICU's
> CharsetDetector.
> Please add a configurable level (0-100);
> if (language != null && match.getConfidence() > THRESHOLD) {
> metadata.set(Metadata.CONTENT_LANGUAGE, match.getLanguage());
> metadata.set(Metadata.LANGUAGE, match.getLanguage());
> }
> Obviously using charset to imply language is generally weak but it would be
> sufficient if the confidence threshold was controlled. Today, the text
> "hello" is tagged as French, for example.
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