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Add marian-mt zh-en example. #3528

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Add marian-mt zh-en example. #3528

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11 changes: 11 additions & 0 deletions candle-examples/examples/marian-mt/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,8 @@ enum LanguagePair {
EnFr,
#[value(name = "en-ru")]
EnRu,
#[value(name = "zh-en")]
ZhEn,
}

// TODO: Maybe add support for the conditional prompt.
Expand Down Expand Up @@ -81,6 +83,7 @@ pub fn main() -> anyhow::Result<()> {
(Which::Base, LanguagePair::EnEs) => marian::Config::opus_mt_en_es(),
(Which::Base, LanguagePair::EnFr) => marian::Config::opus_mt_fr_en(),
(Which::Base, LanguagePair::EnRu) => marian::Config::opus_mt_en_ru(),
(Which::Base, LanguagePair::ZhEn) => marian::Config::opus_mt_zh_en(),
(Which::Big, lp) => anyhow::bail!("big is not supported for language pair {lp:?}"),
};
let tokenizer_default_repo = match args.language_pair {
Expand All @@ -90,6 +93,7 @@ pub fn main() -> anyhow::Result<()> {
| LanguagePair::EnEs
| LanguagePair::EnFr
| LanguagePair::EnRu => "KeighBee/candle-marian",
LanguagePair::ZhEn => "crlf0710/candle-marian",
};
let tokenizer = {
let tokenizer = match args.tokenizer {
Expand All @@ -103,6 +107,7 @@ pub fn main() -> anyhow::Result<()> {
(Which::Base, LanguagePair::EnEs) => "tokenizer-marian-base-en-es-en.json",
(Which::Base, LanguagePair::EnFr) => "tokenizer-marian-base-en-fr-en.json",
(Which::Base, LanguagePair::EnRu) => "tokenizer-marian-base-en-ru-en.json",
(Which::Base, LanguagePair::ZhEn) => "tokenizer-marian-base-zh-en-zh.json",
(Which::Big, lp) => {
anyhow::bail!("big is not supported for language pair {lp:?}")
}
Expand All @@ -127,6 +132,7 @@ pub fn main() -> anyhow::Result<()> {
(Which::Base, LanguagePair::EnEs) => "tokenizer-marian-base-en-es-es.json",
(Which::Base, LanguagePair::EnFr) => "tokenizer-marian-base-en-fr-fr.json",
(Which::Base, LanguagePair::EnRu) => "tokenizer-marian-base-en-ru-ru.json",
(Which::Base, LanguagePair::ZhEn) => "tokenizer-marian-base-zh-en-en.json",
(Which::Big, lp) => {
anyhow::bail!("big is not supported for language pair {lp:?}")
}
Expand Down Expand Up @@ -180,6 +186,11 @@ pub fn main() -> anyhow::Result<()> {
hf_hub::RepoType::Model,
"refs/pr/7".to_string(),
)),
(Which::Base, LanguagePair::ZhEn) => api.repo(hf_hub::Repo::with_revision(
"Helsinki-NLP/opus-mt-zh-en".to_string(),
hf_hub::RepoType::Model,
"refs/pr/12".to_string(),
)),
(Which::Big, lp) => {
anyhow::bail!("big is not supported for language pair {lp:?}")
}
Expand Down
24 changes: 24 additions & 0 deletions candle-transformers/src/models/marian.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,30 @@ impl Config {
}
}

pub fn opus_mt_zh_en() -> Self {
Self {
activation_function: candle_nn::Activation::Swish,
d_model: 512,
decoder_attention_heads: 8,
decoder_ffn_dim: 2048,
decoder_layers: 6,
decoder_start_token_id: 65000,
decoder_vocab_size: Some(65001),
encoder_attention_heads: 8,
encoder_ffn_dim: 2048,
encoder_layers: 6,
eos_token_id: 0,
forced_eos_token_id: 0,
is_encoder_decoder: true,
max_position_embeddings: 512,
pad_token_id: 65000,
scale_embedding: true,
share_encoder_decoder_embeddings: true,
use_cache: true,
vocab_size: 65001,
}
}

pub fn opus_mt_en_hi() -> Self {
Self {
activation_function: candle_nn::Activation::Swish,
Expand Down