sentence-transformers safetensors distilbert sentence-similarity feature-extraction dataset_size:10K<n<100K loss:CosineSimilarityLoss arxiv:1908.10084 base_model:pierreinalco/distilbert-base-uncased-sts base_model:finetune:pierreinalco/distilbert-base-uncased-sts model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us