Description: The evaluation metric is a standard measurement used to assess the performance of a model in the field of machine learning and artificial intelligence. These metrics are fundamental for determining the effectiveness of a model in specific tasks, such as classification, regression, or clustering. Metrics can vary depending on the type of problem and the approach used, and may include measures such as accuracy, recall, F1-score, mean squared error, and others. Choosing the right metric is crucial, as it influences the interpretation of results and decision-making regarding model optimization. In the context of machine learning, for example, evaluation metrics help adjust hyperparameters and validate model performance on test datasets. Additionally, in reinforcement learning, metrics allow for the evaluation of the quality of learned policies. In summary, evaluation metrics are essential tools that provide a quantitative view of model performance, facilitating comparisons between different approaches and the continuous improvement of algorithms.