The Language Variant Tag (LVTag) format is a systematic approach to language classification that extends the BCP 47 standard using private-use subtags. It enables precise identification of language varieties across multiple dimensions including formality, politeness, domain, and orthography.
nlp language tags linguistics classification languages bcp-47 nlp-parsing orthography politeness bcp47 formality politeness-analysis proto-languages
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Updated
Jun 8, 2025 - Python