Sometimes when n is extremely large, performing LOOCV may pose computational problems. However, performing a 10-fold CV requires training the model only ten times, which reduces the computational complexity.

University of Michigan - Ann Arbor

K-Fold CV is usually the method of choice for CV, and functions as a sort of generalization of LOOCV, because:
1. It is much less computationally expensive than LOOCV.
2. It minimizes the **Bias-Variance Tradeoff**.

K-Fold Cross-Validation vs. Leave-One-Out Cross-Validation

James, G., Witten, D., Hastie, T., & Tibshirani, R. (2013). An introduction to statistical learning (Vol. 112, pp. 3-7). New York: springer.

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