sentence-transformers safetensors qwen2 sentence-similarity feature-extraction generated_from_trainer dataset_size:245133 loss:MultipleNegativesRankingLoss loss:MultipleNegativesSymmetricRankingLoss loss:CoSENTLoss custom_code arxiv:1908.10084 arxiv:1705.00652 base_model:Alibaba-NLP/gte-Qwen2-1.5B-instruct base_model:finetune:Alibaba-NLP/gte-Qwen2-1.5B-instruct model-index autotrain_compatible text-embeddings-inference endpoints_compatible region:us