sentence-transformers safetensors nomic_bert sentence-similarity feature-extraction generated_from_trainer dataset_size:1453 loss:MatryoshkaLoss loss:MultipleNegativesRankingLoss custom_code en arxiv:1908.10084 arxiv:2205.13147 arxiv:1705.00652 base_model:nomic-ai/nomic-embed-text-v1.5 base_model:finetune:nomic-ai/nomic-embed-text-v1.5 license:apache-2.0 model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us