transformers safetensors minicpmv feature-extraction visual-question-answering custom_code en zh dataset:HaoyeZhang/RLHF-V-Dataset dataset:Yirany/UniMM-Chat dataset:HuggingFaceM4/VQAv2 dataset:liuhaotian/LLaVA-Instruct-150K arxiv:2403.11703 arxiv:2308.12038 region:us