sentence-transformers safetensors bert sentence-similarity feature-extraction generated_from_trainer dataset_size:9729 loss:MultipleNegativesRankingLoss arxiv:1908.10084 arxiv:1705.00652 base_model:sentence-transformers/multi-qa-MiniLM-L6-dot-v1 base_model:finetune:sentence-transformers/multi-qa-MiniLM-L6-dot-v1 autotrain_compatible text-embeddings-inference endpoints_compatible region:us