sentence-transformers safetensors roberta sentence-similarity feature-extraction generated_from_trainer dataset_size:600313 loss:MultipleNegativesRankingLoss loss:CosineSimilarityLoss arxiv:1908.10084 arxiv:1705.00652 base_model:klue/roberta-base base_model:finetune:klue/roberta-base model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us