[jira] Updated: (TIKA-209) Language detection is weak.

["Chris A. Mattmann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TIKA-209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris A. Mattmann updated TIKA-209:
-----------------------------------

      Component/s: languageidentifier
    Fix Version/s: 0.5

- set component and fix version

> Language detection is weak.
> ---------------------------
>
>                 Key: TIKA-209
>                 URL: https://issues.apache.org/jira/browse/TIKA-209
>             Project: Tika
>          Issue Type: Bug
>          Components: languageidentifier
>    Affects Versions: 0.3
>            Reporter: Robert Newson
>             Fix For: 0.5
>
>
> 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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