# util
`sentence_transformers.util` defines different helpful functions to work with text embeddings.

## Helper Functions
```eval_rst
.. automodule:: sentence_transformers.util
   :members: paraphrase_mining, semantic_search, community_detection, http_get, truncate_embeddings, normalize_embeddings, is_training_available
```

## Similarity Metrics

```eval_rst
.. automodule:: sentence_transformers.util
   :members: cos_sim, pairwise_cos_sim, dot_score, pairwise_dot_score, manhattan_sim, pairwise_manhattan_sim, euclidean_sim, pairwise_euclidean_sim
```