sentence-transformers pytorch deberta-v2 sentence-similarity feature-extraction dataset_size:100K<n<1M loss:MultipleNegativesRankingLoss en arxiv:1908.10084 arxiv:1705.00652 base_model:microsoft/deberta-v3-xsmall base_model:finetune:microsoft/deberta-v3-xsmall model-index autotrain_compatible endpoints_compatible region:us