SentenceTransformer
This is a sentence-transformers model trained. It maps sentences & paragraphs to a 2048-dimensional dense vector space and can be used for semantic textual similarity, semantic search, paraphrase mining, text classification, clustering, and more.
Model Details
Model Description
- Model Type: Sentence Transformer
- Maximum Sequence Length: 8192 tokens
- Output Dimensionality: 2048 tokens
- Similarity Function: Cosine Similarity
Model Sources
- Documentation: Sentence Transformers Documentation
- Repository: Sentence Transformers on GitHub
- Hugging Face: Sentence Transformers on Hugging Face
Full Model Architecture
SentenceTransformer(
(0): Transformer({'max_seq_length': 8192, 'do_lower_case': False}) with Transformer model: GemmaModel
(1): Pooling({'word_embedding_dimension': 2048, 'pooling_mode_cls_token': False, 'pooling_mode_mean_tokens': True, 'pooling_mode_max_tokens': False, 'pooling_mode_mean_sqrt_len_tokens': False, 'pooling_mode_weightedmean_tokens': False, 'pooling_mode_lasttoken': False, 'include_prompt': True})
)
Usage
Direct Usage (Sentence Transformers)
First install the Sentence Transformers library:
pip install -U sentence-transformers
Then you can load this model and run inference.
from sentence_transformers import SentenceTransformer
# Download from the π€ Hub
model = SentenceTransformer("Jaume/gemma-2b-embeddings")
# Run inference
sentences = [
'The weather is lovely today.',
"It's so sunny outside!",
'He drove to the stadium.',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 2048]
# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities.shape)
# [3, 3]
Training Details
Framework Versions
- Python: 3.10.12
- Sentence Transformers: 3.0.1
- Transformers: 4.41.2
- PyTorch: 2.3.0+cu121
- Accelerate: 0.31.0
- Datasets: 2.20.0
- Tokenizers: 0.19.1
Citation
BibTeX
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Evaluation results
- accuracy on MTEB AmazonCounterfactualClassification (en)test set self-reported67.493
- ap on MTEB AmazonCounterfactualClassification (en)test set self-reported30.935
- ap_weighted on MTEB AmazonCounterfactualClassification (en)test set self-reported30.935
- f1 on MTEB AmazonCounterfactualClassification (en)test set self-reported61.848
- f1_weighted on MTEB AmazonCounterfactualClassification (en)test set self-reported70.733
- main_score on MTEB AmazonCounterfactualClassification (en)test set self-reported67.493
- accuracy on MTEB AmazonReviewsClassification (en)test set self-reported34.896
- f1 on MTEB AmazonReviewsClassification (en)test set self-reported34.751
- f1_weighted on MTEB AmazonReviewsClassification (en)test set self-reported34.751
- main_score on MTEB AmazonReviewsClassification (en)test set self-reported34.896