sentence-transformers safetensors bert sentence-similarity feature-extraction generated_from_trainer dataset_size:16011 loss:CosineSimilarityLoss en dataset:Mihaiii/qa-assistant-2 arxiv:1908.10084 base_model:Mihaiii/Venusaur base_model:finetune:Mihaiii/Venusaur model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us