sentence-transformers safetensors bert pretraining russian embeddings tiny feature-extraction sentence-similarity transformers ru dataset:IlyaGusev/gazeta dataset:zloelias/lenta-ru base_model:cointegrated/rubert-tiny2 base_model:finetune:cointegrated/rubert-tiny2 license:mit autotrain_compatible text-embeddings-inference endpoints_compatible region:us