sentence-transformers safetensors distilbert sentence-similarity feature-extraction dataset_size:1K<n<10K loss:CosineSimilarityLoss en arxiv:1908.10084 base_model:distilbert/distilbert-base-uncased base_model:finetune:distilbert/distilbert-base-uncased model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us