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---
license: mit
language:
- gl
metrics:
- bleu (Gold1): 79.6
- bleu (Gold2): 43.3
- bleu (Flores): 21.8
- bleu (Test-suite): 74.3
---
**English text [here](https://huggingface.co/proxectonos/NOS-MT-OpenNMT-es-gl/blob/main/README_English.md)**
**Model Description**
Model created with OpenNMT-py 3.2 for the Spanish-Galician pair using a transformer architecture. The model was converted to the ctranslate2 format.
**How to Translate with this Model**
+ Install [Python 3.9](https://www.python.org/downloads/release/python-390/)
+ Install [ctranslate 3.2](https://github.com/OpenNMT/CTranslate2)
+ Translate an input_text using the NOS-MT-es-gl model with the following command:
```bash
perl tokenizer.perl < input.txt > input.tok
```
```bash
subword_nmt.apply_bpe -c ./bpe/es.bpe < input.tok > input.bpe
```
```bash
python3 translate.py ./ct2-es-gl_12L input.bpe > output.txt
```
```bash
': sed -i 's/@@ //g' output.txt
```
**Training**
We used authentic and synthetic corpora from the [ProxectoNós](https://github.com/proxectonos/corpora). The former are translation corpora made directly by human translators. It is important to note that despite these texts being made by humans, they are not free from linguistic errors. The latter are Spanish-Portuguese translation corpora, which we converted into Spanish-Galician through Portuguese-Galician automatic translation with Opentrad/Apertium and transliteration for out-of-vocabulary words.
**Training Procedure**
+ Tokenization of the datasets was done with the tokenizer (tokenizer.pl) from [linguakit](https://github.com/citiususc/Linguakit) which was modified to avoid line breaks per token from the original file.
+ The BPE vocabulary for the models was generated through the [learn_bpe.py](https://github.com/OpenNMT/OpenNMT-py/blob/master/tools/learn_bpe.py) script from OpenNMT.
+ Using the .yaml from this repository, you can replicate the training process. It is necessary to modify the paths in the .yaml file for Open NMT to know where to find the texts. After doing this, you can start the process as follows:
```bash
onmt_build_vocab -config bpe-es-gl_emb.yaml -n_sample 40000
onmt_train -config bpe-es-gl_emb.yaml
```
**Hyperparameters**
The parameters used for the model development can be consulted directly in the same .yaml file bpe-es-gl_emb.yaml
**Evaluation**
The BLEU evaluation of the models is done with a mix of internally developed tests (gold1, gold2, test-suite) with other available datasets in Galician (Flores).
| GOLD 1 | GOLD 2 | FLORES | TEST-SUITE|
| ------------- |:-------------:| -------:|----------:|
| 79.5 | 43.5 | 21.4 | 73.4 |
**Licensing information**
MIT License
Copyright (c) 2023 Proxecto Nós
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
**Funding**
This research was funded by the project "Nós: Galician in the society and economy of artificial intelligence", agreement between Xunta de Galicia and University of Santiago de Compostela, and grant ED431G2019/04 by the Galician Ministry of Education, University and Professional Training, and the European Regional Development Fund (ERDF/FEDER program), and Groups of Reference: ED431C 2020/21.
**Citation Information**
Daniel Bardanca Outeirinho, Pablo Gamallo Otero, Iria de-Dios-Flores, and José Ramom Pichel Campos. 2024.
Exploring the effects of vocabulary size in neural machine translation: Galician as a target language.
In Proceedings of the 16th International Conference on Computational Processing of Portuguese, pages 600–604,
Santiago de Compostela, Galiza. Association for Computational Lingustics.
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