leave one out cross validation (loocv)

How Does LOOCV Work?

In LOOCV, the dataset is divided into n subsets, where n is the total number of data points. The model is trained n times, each time leaving out one unique data point for validation while using the remaining n-1 points for training. The process involves the following steps:
1. Data Splitting: Divide the dataset into n subsets.
2. Model Training: Train the model n times, each time leaving out one subset for validation.
3. Validation: Validate the model on the left-out subset.
4. Performance Aggregation: Aggregate the performance metrics from each iteration to get an overall estimate.

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