Model reference · open weights
ptbr-similarity-e5-small is an open-weight embedding model from jmbrito. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Released by | jmbrito |
|---|---|
| Type | Embedding models |
| Task | Embeddings |
| Context | 512 tokens |
| Runs with | sentence-transformers |
| Released | 2023-08-25 |
| Popularity | 522 downloads / month |
| Licence | Open weights |
About
This model is a finetuned version of intfloat/multilingual-e5-small using the ASSIN2 dataset for similarity score.
This is a sentence-transformers model: It maps sentences & paragraphs to a 384 dimensional dense vector space and can be used for tasks like clustering or semantic search.
Using this model becomes easy when you have sentence-transformers installed:
pip install -U sentence-transformers
Then you can use the model like this:
from sentence_transformers import SentenceTransformer
sentences = ["This is an example sentence", "Each sentence is converted"]
model = SentenceTransformer('jmbrito/ptbr-similarity-e5-small')
embeddings = model.encode(sentences)
print(embeddings)
This model was evaluated using the ASSIN2 test dataset calculating the Spearman and Pearson rank correlation. The results found were: 0.79934
The model was trained with the parameters:
DataLoader:
torch.utils.data.dataloader.DataLoader of length 204 with parameters:
{'batch_size': 32, 'sampler': 'torch.utils.data.sampler.RandomSampler', 'batch_sampler': 'torch.utils.data.sampler.BatchSampler'}
Loss:
sentence_transformers.losses.CosineSimilarityLoss.CosineSimilarityLoss
Parameters of the fit()-Method:
{
"epochs": 10,
"evaluation_steps": 100,
"evaluator": "sentence_transformers.evaluation.EmbeddingSimilarityEvaluator.EmbeddingSimilarityEvaluator",
"max_grad_norm": 1,
"optimizer_class": "",
"optimizer_params": {
"lr": 2e-05
},
"scheduler": "WarmupLinear",
"steps_per_epoch": null,
"warmup_steps": 100,
"weight_decay": 0.01
}
SentenceTransformer(
(0): Transformer({'max_seq_length': 512, 'do_lower_case': False}) with Transformer model: BertModel
(1): Pooling({'word_embedding_dimension': 384, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False})
(2): Normalize()
)
From the published model card. Full card on the HuggingFace links in the sidebar.
Using it via the API
Once AxForge deploys ptbr-similarity-e5-small for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (ptbr-similarity-e5-small below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/embeddings \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"ptbr-similarity-e5-small","input":"text to embed"}'
Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.