sentence-transformers safetensors bert sentence-similarity feature-extraction generated_from_trainer dataset_size:29127 loss:MultipleNegativesRankingLoss arxiv:1908.10084 arxiv:1705.00652 base_model:DeepPavlov/rubert-base-cased-sentence base_model:finetune:DeepPavlov/rubert-base-cased-sentence autotrain_compatible text-embeddings-inference endpoints_compatible region:us