sentence-transformers pytorch distilbert sentence-similarity feature-extraction generated_from_trainer dataset_size:2400 loss:TripletLoss loss:MultipleNegativesRankingLoss loss:CoSENTLoss arxiv:1908.10084 arxiv:1703.07737 arxiv:1705.00652 base_model:sentence-transformers/distilbert-base-nli-mean-tokens base_model:finetune:sentence-transformers/distilbert-base-nli-mean-tokens model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us