Now, you will see how to implement the **Gaussian mixture model (GMM)** on a simple dataset. The dataset is created using blobs with **three clusters**, two of which slightly overlap to simulate realistic clustering challenges. The implementation can be broken down in the following steps:

1.  **Generating the dataset**: the dataset consists of three clusters, generated using Python libraries like sklearn. Two clusters overlap slightly, which makes the task suitable for GMM, as it can handle overlapping data better than traditional methods like K-means; 

2.  **Training the GMM**: the GMM model is trained on the dataset to identify the clusters. During training, the algorithm calculates the probability of each point belonging to each cluster (referred to as responsibilities). It then adjusts the Gaussian distributions iteratively to find the best fit for the data;        

3.  **Results**: after training, the model assigns each data point to one of the three clusters. The overlapping points are probabilistically assigned based on their likelihood, demonstrating GMM's ability to handle complex clustering scenarios.    

You can visualize the results using **scatter plots**, where each point is colored according to its assigned cluster. This example showcases how GMM is effective in clustering data with overlapping regions. 

Le clustering est l'une des techniques fondamentales de l'apprentissage automatique qui vous permet de résoudre de nombreux problèmes complexes dans la vie réelle : segmentation de marché, détection d'anomalies, réduction de la dimensionnalité, révélation de motifs cachés, etc.

Dive into the fundamentals of clustering and discover how it differs from classification. Explore essential algorithms, tools, and libraries that power this unsupervised learning technique to uncover hidden patterns in data.

Gain a solid understanding of key preprocessing techniques that ensure effective clustering. Learn how to handle missing values, encode categorical features, normalize data, and choose appropriate distance measures and linkages to boost clustering accuracy.

Master the skills needed to apply K-Means clustering effectively. Learn how the algorithm works, determine the optimal number of clusters, and gain hands-on experience by implementing K-Means on both synthetic and real-world datasets.

Explore the essentials of hierarchical clustering and learn how to group data into meaningful clusters using dendrograms. Build confidence in identifying the optimal number of clusters and implementing the technique on both synthetic and real-world datasets.

Discover how DBSCAN excels at detecting clusters of varying shapes and handling noise in data. Learn the mechanics behind this density-based algorithm, how to assign points to clusters, and apply it to both synthetic and real datasets with confidence.

Gain a solid understanding of Gaussian Mixture Models and how they use probability to model complex cluster shapes. Learn the principles of Gaussian distribution, explore how GMMs work, and build confidence by applying them to both dummy and real-world data.

Analyse de Cluster

Implementing GMM on Dummy Data