metadata
tags:
- sentence-transformers
- sentence-similarity
- feature-extraction
base_model: Qwen/Qwen2.5-0.5B
pipeline_tag: sentence-similarity
library_name: sentence-transformers
SentenceTransformer based on Qwen/Qwen2.5-0.5B
This is a sentence-transformers model finetuned from Qwen/Qwen2.5-0.5B. It maps sentences & paragraphs to a 896-dimensional dense vector space and can be used for retrieval.
Model Details
Model Description
- Model Type: Sentence Transformer
- Base model: Qwen/Qwen2.5-0.5B
- Maximum Sequence Length: 32768 tokens
- Output Dimensionality: 896 dimensions
- Similarity Function: Cosine Similarity
- Supported Modalities: Text, Message
Model Sources
- Documentation: Sentence Transformers Documentation
- Repository: Sentence Transformers on GitHub
- Hugging Face: Sentence Transformers on Hugging Face
Full Model Architecture
SentenceTransformer(
(0): Transformer({'transformer_task': 'feature-extraction', 'modality_config': {'text': {'method': 'forward', 'method_output_name': 'last_hidden_state'}, 'message': {'method': 'forward', 'method_output_name': 'last_hidden_state', 'format': 'flat'}}, 'module_output_name': 'token_embeddings', 'architecture': 'Qwen2Model'})
(1): Pooling({'embedding_dimension': 896, 'pooling_mode': 'lasttoken', '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 🤗 Hub
model = SentenceTransformer("sentence_transformers_model_id")
# 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, 896]
# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities)
# tensor([[1.0078, 0.9844, 0.9688],
# [0.9844, 0.9961, 0.9375],
# [0.9688, 0.9375, 1.0000]], dtype=torch.bfloat16)
Training Details
Framework Versions
- Python: 3.12.13
- Sentence Transformers: 5.6.0
- Transformers: 5.5.0
- PyTorch: 2.10.0+cu128
- Accelerate: 1.14.0
- Datasets: 4.3.0
- Tokenizers: 0.22.2