sentence-transformers safetensors mpnet sentence-similarity feature-extraction generated_from_trainer dataset_size:2545432 loss:MultipleNegativesRankingLoss arxiv:1908.10084 arxiv:1705.00652 base_model:AI-Growth-Lab/PatentSBERTa base_model:finetune:AI-Growth-Lab/PatentSBERTa model-index autotrain_compatible endpoints_compatible region:us