Supervised Learning - Gaussian Processes, Measuring Model Performance, Reproducibility and Data Handling

What is a Gaussian Process?

A Gaussian Process is a probabilistic model used for regression and classification tasks in supervised learning.

How do hyperparameters influence a Gaussian Process model?

Hyperparameters determine the covariance function and shape of predictions in a Gaussian Process affecting model flexibility and predictions.

What metrics can be used for assessing model performance beyond accuracy?

Metrics such as precision, recall, F1 score and AUC-ROC provide a more comprehensive assessment of model performance.

What is the significance of reproducible machine learning?

Reproducible machine learning ensures experiments yield consistent results across different environments, enhancing reliability and transparency.

What tools can be utilized for version control in machine learning experiments?

Tools like Docker and Git help with version control of datasets and model configurations to enhance reproducibility.

Why is documenting the modeling process important?

Documenting the modelling process, including hyperparameter choices, their rationale, aids in understanding, replication and fosters collaboration.

What is the purpose of measuring precision in model performance?

Precision measures the proportion of true positive predictions among total positive predictions in helping to evaluate the accuracy of positive predictions.

How does recall differ from precision in model evaluation?

Recall measures the proportion of true positive predictions among actual positive cases, focusing on the model's ability to capture all relevant instances.

Define F1 score in the context of model evaluation.

The F1 score is the harmonic mean of precision and recall, providing a balance between the two metrics and especially useful for imbalanced datasets.

What does AUC-ROC represent in performance evaluation?

AUC-ROC represents the area under the Receiver Operating Characteristic curve indicating the model's ability to distinguish between classes.