sentence-transformers safetensors bert sentence-similarity feature-extraction generated_from_trainer dataset_size:238 loss:MultipleNegativesRankingLoss arxiv:1908.10084 arxiv:1705.00652 base_model:BAAI/bge-small-en base_model:finetune:BAAI/bge-small-en model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us