Implementing on Dummy Dataset

You'll create two datasets to demonstrate DBSCAN's strengths:

Moons: two interleaving half circles;
Circles: a small circle inside a larger circle.

The algorithm is as follows:

You instantiate the DBSCAN object, setting eps and min_samples;
You fit the model to your data;
You visualize the results by plotting the data points and coloring them according to their assigned cluster labels.

Tuning Hyperparameters

The choice of eps and min_samples significantly impacts the clustering outcome. Experiment with different values to find what works best for your data. For instance, if eps is too large, all points might end up in a single cluster. If eps is too small, many points might be classified as noise. You can also scale the features.

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Sezione 5. Capitolo 4

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Contenuti del Corso

Cluster Analysis

1. Clustering Fundamentals

Introduction to Clustering Clustering Vs Classification Clustering Algorithms and Libraries

2. Core Concepts

Missing Values Handling Categorical Features Encoding Data Normalization Distance Measures Linkages Challenge: Preprocessing the Dataset

3. K-Means

4. Hierarchical Clustering

How Hierarchical Clustering Works?Optimal Number of Clusters Implementing on Dummy Dataset Implementing on Customers Dataset Challenge: Implementing Hierarchical Clustering

5. DBSCAN

Why DBSCAN?How DBSCAN Works?How to Assign Points to the Clusters?Implementing on Dummy Dataset Implementing on Real Dataset Challenge: Implementing DBSCAN

6. GMMs

Problem Statement What is Gaussian Distribution?How GMMs Work?Implementing GMM on Dummy Data Implementing GMM on Real Data Challenge: Implementing Gaussian Mixture Models Conclusion