@article{cogragtacklingheterogeneouscognitivedema,
  title = {CogRAG: Tackling Heterogeneous Cognitive Demands in RAG via Stratified Retrieval and Reasoning},
  author = {Xudong Wang and Zilong Wang and Kui Su and Zhaoyan Ming},
  year = {2026},
  eprint = {2604.25928},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.25928},
}