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Language support for custom text classification

Use this article to learn about the languages currently supported by custom text classification feature.

Multi-lingual option

With custom text classification, you can train a model in one language and use to classify documents in another language. This feature is useful because it helps save time and effort. Instead of building separate projects for every language, you can handle multi-lingual dataset in one project. Your dataset doesn't have to be entirely in the same language but you should enable the multi-lingual option for your project while creating or later in project settings. If you notice your model performing poorly in certain languages during the evaluation process, consider adding more data in these languages to your training set.

You can train your project entirely with English documents, and query it in: French, German, Mandarin, Japanese, Korean, and others. Custom text classification makes it easy for you to scale your projects to multiple languages by using multilingual technology to train your models.

Whenever you identify that a particular language is not performing as well as other languages, you can add more documents for that language in your project. In the data labeling page in Language Studio, you can select the language of the document you're adding. When you introduce more documents for that language to the model, it is introduced to more of the syntax of that language, and learns to predict it better.

You aren't expected to add the same number of documents for every language. You should build the majority of your project in one language, and only add a few documents in languages you observe aren't performing well. If you create a project that is primarily in English, and start testing it in French, German, and Spanish, you might observe that German doesn't perform as well as the other two languages. In that case, consider adding 5% of your original English documents in German, train a new model and test in German again. You should see better results for German queries. The more labeled documents you add, the more likely the results are going to get better.

When you add data in another language, you shouldn't expect it to negatively affect other languages.

Languages supported by custom text classification

Custom text classification supports .txt files in the following languages:

Language Language Code
Afrikaans af
Amharic am
Arabic ar
Assamese as
Azerbaijani az
Belarusian be
Bulgarian bg
Bengali bn
Breton br
Bosnian bs
Catalan ca
Czech cs
Welsh cy
Danish da
German de
Greek el
English (US) en-us
Esperanto eo
Spanish es
Estonian et
Basque eu
Persian fa
Finnish fi
French fr
Western Frisian fy
Irish ga
Scottish Gaelic gd
Galician gl
Gujarati gu
Hausa ha
Hebrew he
Hindi hi
Croatian hr
Hungarian hu
Armenian hy
Indonesian id
Italian it
Japanese ja
Javanese jv
Georgian ka
Kazakh kk
Khmer km
Kannada kn
Korean ko
Kurdish (Kurmanji) ku
Kyrgyz ky
Latin la
Lao lo
Lithuanian lt
Latvian lv
Malagasy mg
Macedonian mk
Malayalam ml
Mongolian mn
Marathi mr
Malay ms
Burmese my
Nepali ne
Dutch nl
Norwegian (Bokmal) nb
Odia or
Punjabi pa
Polish pl
Pashto ps
Portuguese (Brazil) pt-br
Portuguese (Portugal) pt-pt
Romanian ro
Russian ru
Sanskrit sa
Sindhi sd
Sinhala si
Slovak sk
Slovenian sl
Somali so
Albanian sq
Serbian sr
Sundanese su
Swedish sv
Swahili sw
Tamil ta
Telugu te
Thai th
Filipino tl
Turkish tr
Uyghur ug
Ukrainian uk
Urdu ur
Uzbek uz
Vietnamese vi
Xhosa xh
Yiddish yi
Chinese (Simplified) zh-hans
Zulu zu

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