@article{ketragacostefficientmultigranular,
  title = {KET-RAG: A Cost-Efficient Multi-Granular Indexing Framework for Graph-RAG},
  author = {Yiqian Huang and Shiqi Zhang and Xiaokui Xiao},
  year = {2025},
  eprint = {2502.09304},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2502.09304v1},
}