K-Means Clustering
Explore k-means clustering to group similar data points without labels, implement the algorithm step-by-step, and assess cluster quality using silhouette scores to improve unsupervised learning skills.
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K-means clustering is a fundamental tool in unsupervised learning for grouping similar data points without prior labels. In this lesson, we'll practice implementing the algorithm step-by-step, understand how to form meaningful clusters, and evaluate clustering performance with silhouette scores. Let’s get started.
Implementing k-means clustering
You are given a dataset containing various data points representing customer transactions. Your task is to group these transactions into different clusters based on their similarities using the k-means clustering algorithm. The dataset is represented as a list of tuples, where each tuple contains transaction details like the amount spent and the number of items purchased.
Implement a function k_means_clustering(data, k) that clusters the given dataset into k clusters using the k-means algorithm. The function should return a list of clusters, where each cluster is a list of transaction points. ...