Implement Ki, Nohyun, Hoyong Choi, and Hye Won Chung. [Data Valuation Without Training of a Model.](https://openreview.net/pdf?id=XIzO8zr-WbM) arXiv preprint arXiv:2301.00930 (2023). The paper's code can be found in [this repository](https://github.com/JJchy/CG_score).