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Merge pull request #815 from PyThaiNLP/add-small100
Add small100 to pythainlp.translate
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from transformers import M2M100ForConditionalGeneration | ||
from .tokenization_small100 import SMALL100Tokenizer | ||
|
||
class Small100Translator: | ||
""" | ||
Machine Translation with small100 model | ||
- Huggingface https://huggingface.co/alirezamsh/small100 | ||
:param bool use_gpu : load model to gpu (Default is False) | ||
""" | ||
|
||
def __init__( | ||
self, | ||
use_gpu: bool = False, | ||
pretrained: str = "alirezamsh/small100", | ||
) -> None: | ||
self.pretrained = pretrained | ||
self.model = M2M100ForConditionalGeneration.from_pretrained(self.pretrained) | ||
self.tgt_lang = None | ||
if use_gpu: | ||
self.model = self.model.cuda() | ||
|
||
def translate(self, text: str, tgt_lang: str="en") -> str: | ||
""" | ||
Translate text from X to X | ||
:param str text: input text in source language | ||
:param str tgt_lang: target language | ||
:return: translated text in target language | ||
:rtype: str | ||
:Example: | ||
:: | ||
from pythainlp.translate.small100 import Small100Translator | ||
mt = Small100Translator() | ||
# Translate text from Thai to English | ||
mt.translate("ทดสอบระบบ", tgt_lang="en") | ||
# output: 'Testing system' | ||
# Translate text from Thai to Chinese | ||
mt.translate("ทดสอบระบบ", tgt_lang="zh") | ||
# output: '系统测试' | ||
# Translate text from Thai to French | ||
mt.translate("ทดสอบระบบ", tgt_lang="fr") | ||
# output: 'Test du système' | ||
""" | ||
if tgt_lang!=self.tgt_lang: | ||
self.tokenizer = SMALL100Tokenizer.from_pretrained(self.pretrained, tgt_lang=tgt_lang) | ||
self.tgt_lang = tgt_lang | ||
self.translated = self.model.generate( | ||
**self.tokenizer(text, return_tensors="pt") | ||
) | ||
return self.tokenizer.batch_decode(self.translated, skip_special_tokens=True)[0] |
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