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What are Hyperparameter Optimization Techniques in Supervised Learning?

Hyperparameter optimization techniques are essential methods in supervised learning to enhance the performance of machine learning models. These techniques involve the systematic tuning of hyperparameters—settings that govern the learning process but are not learned from the data itself.

1. Grid Search

Grid Search is one of the simplest and most commonly used techniques. It evaluates all possible combinations of hyperparameters specified in a grid. Although thorough, it can be computationally expensive, especially with a large number of hyperparameters.

2. Random Search

Random Search improves upon Grid Search by randomly selecting combinations of hyperparameters to evaluate. This method can often find optimal configurations more quickly than a full grid search, particularly in high-dimensional spaces.

3. Bayesian Optimization

Bayesian Optimization utilizes probabilistic models to find the best hyperparameters. It balances exploration and exploitation, focusing on promising areas of the hyperparameter space, which can lead to better performance while reducing computation time.

4. Hyperband

Hyperband is a technique that dynamically allocates resources to different configurations, allowing underperforming hyperparameter choices to be quickly discarded. This results in more efficient searches by focusing on promising candidates early on.

In conclusion, effective hyperparameter optimization can significantly enhance the performance of supervised learning models, making the choice of technique crucial for achieving optimal results.

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