Product management glosary

K-Means Clustering

What is K-Means Clustering?


K-Means Clustering is a popular unsupervised machine learning algorithm used for grouping similar data points together. It is a type of clustering algorithm that is widely used in data mining, image processing, and market segmentation.

How K-Means Clustering Works

The K-Means Clustering algorithm works by dividing a set of data points into K clusters, where K is a predefined number of clusters. The algorithm starts by randomly selecting K points from the dataset as the initial centroids of the clusters. Each data point is then assigned to the nearest centroid based on the Euclidean distance between the data point and the centroid. After the initial assignment, the algorithm recalculates the centroids of each cluster by taking the mean of all the data points assigned to that cluster. The algorithm then reassigns each data point to the nearest centroid based on the updated centroids. This process is repeated until the centroids no longer change or a maximum number of iterations is reached.

Applications of K-Means Clustering

K-Means Clustering has a wide range of applications in various fields. Some of the most common applications of K-Means Clustering include: 1. Market Segmentation: K-Means Clustering is used to segment customers based on their buying behavior, demographics, and other factors. 2. Image Processing: K-Means Clustering is used to segment images into different regions based on their color or texture. 3. Anomaly Detection: K-Means Clustering is used to detect anomalies in data by identifying data points that do not belong to any cluster. 4. Recommendation Systems: K-Means Clustering is used to group similar items together in recommendation systems.


K-Means Clustering is a powerful unsupervised machine learning algorithm that is widely used in various fields. It is a simple and efficient algorithm that can be used to group similar data points together. K-Means Clustering has many applications, including market segmentation, image processing, anomaly detection, and recommendation systems.