---
tags:
- sentence-transformers
- sentence-similarity
- feature-extraction
- generated_from_trainer
- dataset_size:19985
- loss:CosineSimilarityLoss
base_model: sentence-transformers/all-mpnet-base-v2
widget:
- source_sentence: 'A trigger of contamination OCD: own hands'
sentences:
- 'A trigger of contamination OCD: parking lot buttons'
- 'A trigger of contamination OCD: touched by strangers'
- 'A trigger of contamination OCD: using public toilets'
- source_sentence: 'A trigger of contamination OCD: coughing and sneezing'
sentences:
- 'A trigger of contamination OCD: disenfecting'
- 'A trigger of contamination OCD: masks not worn or not worn correctly'
- 'A trigger of contamination OCD: hands full of corona viruses'
- source_sentence: 'A trigger of contamination OCD: after using the toilet at home'
sentences:
- 'A trigger of contamination OCD: object coming from outside'
- 'A trigger of contamination OCD: thoughts of dirty toilet'
- 'A trigger of contamination OCD: sniffing children'
- source_sentence: 'A trigger of contamination OCD: masks not worn'
sentences:
- 'A trigger of contamination OCD: manicure'
- 'A trigger of contamination OCD: touching objects or surfaces in public spaces'
- 'A trigger of contamination OCD: people not wearing a mask'
- source_sentence: 'A trigger of contamination OCD: money problem'
sentences:
- 'A trigger of contamination OCD: typing parking lot number'
- 'A trigger of contamination OCD: someone touching his nose'
- 'A trigger of contamination OCD: touching waste in the city'
pipeline_tag: sentence-similarity
library_name: sentence-transformers
---
# dwulff/mpnet-cocs
This is a [sentence-transformers](https://www.SBERT.net) model that generates 768-dimensional semantic vectors of triggers of contamination obsessive compulsive symptoms (C-OCS).
The base model ([all-mpnet-base-v2](https://huggingface.co/sentence-transformers/all-mpnet-base-v2)) has been fine-tuned on 20k pairs of C-OCS triggers rated for similarity by [Llama-3.3-70b-Instruct](https://huggingface.co/meta-llama/Llama-3.3-70B-Instruct).
See PREPRINT for details.
## Usage
Make sure [sentence-transformers](https://www.SBERT.net) is installed:
## Model Details
### Model Description
- **Model Type:** Sentence Transformer
- **Base model:** [sentence-transformers/all-mpnet-base-v2](https://huggingface.co/sentence-transformers/all-mpnet-base-v2)
- **Maximum Sequence Length:** 384 tokens
- **Output Dimensionality:** 768 dimensions
- **Similarity Function:** Cosine Similarity
### Model Sources
- **Documentation:** [Sentence Transformers Documentation](https://sbert.net)
- **Repository:** [Sentence Transformers on GitHub](https://github.com/UKPLab/sentence-transformers)
- **Hugging Face:** [Sentence Transformers on Hugging Face](https://huggingface.co/models?library=sentence-transformers)
### Full Model Architecture
```
SentenceTransformer(
(0): Transformer({'max_seq_length': 384, 'do_lower_case': False}) with Transformer model: MPNetModel
(1): Pooling({'word_embedding_dimension': 768, '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})
(2): Normalize()
)
```
## Usage
### Direct Usage (Sentence Transformers)
First install the Sentence Transformers library:
```bash
pip install -U sentence-transformers
```
Then you can load this model and run inference.
```python
from sentence_transformers import SentenceTransformer
# Download from the 🤗 Hub
model = SentenceTransformer("dwulff/mpnet-cocs")
# Run inference
sentences = [
'A trigger of contamination OCD: money problem',
'A trigger of contamination OCD: someone touching his nose',
'A trigger of contamination OCD: touching waste in the city',
]
embeddings = model.encode(sentences)
print(embeddings.shape)
# [3, 768]
# Get the similarity scores for the embeddings
similarities = model.similarity(embeddings, embeddings)
print(similarities.shape)
# [3, 3]
```
## Training Details
### Training Dataset
#### Unnamed Dataset
* Size: 19,985 training samples
* Columns: sentence_0, sentence_1, and label
* Approximate statistics based on the first 1000 samples:
| | sentence_0 | sentence_1 | label |
|:--------|:-----------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------|:---------------------------------------------------------------|
| type | string | string | float |
| details |
A trigger of contamination OCD: odor | A trigger of contamination OCD: wearing a mask | 0.2 |
| A trigger of contamination OCD: distance not respected | A trigger of contamination OCD: person not respecting personal distance | 0.9 |
| A trigger of contamination OCD: incongruous colors | A trigger of contamination OCD: my work | 0.0 |
* Loss: [CosineSimilarityLoss](https://sbert.net/docs/package_reference/sentence_transformer/losses.html#cosinesimilarityloss) with these parameters:
```json
{
"loss_fct": "torch.nn.modules.loss.MSELoss"
}
```
### Training Hyperparameters
#### Non-Default Hyperparameters
- `per_device_train_batch_size`: 64
- `per_device_eval_batch_size`: 64
- `multi_dataset_batch_sampler`: round_robin
#### All Hyperparameters