K-Means clustering with Python Example

Показать описание

This video is going to be divided into 5 parts:

00:00 Introduction to Data
00:59 Clean data and choose variables for clustering
05:30 Sklearn K-Means example code
07:50 Interpreting clustering results
11:30 Wrapping up

k-means clustering is a method of vector quantization, originally from signal processing, that aims to partition n observations into k clusters in which each observation belongs to the cluster with the nearest mean (cluster centers or cluster centroid), serving as a prototype of the cluster. This results in a partitioning of the data space into Voronoi cells. k-means clustering minimizes within-cluster variances (squared Euclidean distances), but not regular Euclidean distances, which would be the more difficult Weber problem: the mean optimizes squared errors, whereas only the geometric median minimizes Euclidean distances. For instance, better Euclidean solutions can be found using k-medians and k-medoids.

The problem is computationally difficult (NP-hard); however, efficient heuristic algorithms converge quickly to a local optimum. These are usually similar to the expectation-maximization algorithm for mixtures of Gaussian distributions via an iterative refinement approach employed by both k-means and Gaussian mixture modeling. They both use cluster centers to model the data; however, k-means clustering tends to find clusters of comparable spatial extent, while the Gaussian mixture model allows clusters to have different shapes.

The unsupervised k-means algorithm has a loose relationship to the k-nearest neighbor classifier, a popular supervised machine learning technique for classification that is often confused with k-means due to the name. Applying the 1-nearest neighbor classifier to the cluster centers obtained by k-means classifies new data into the existing clusters. This is known as nearest centroid classifier or Rocchio algorithm.

Created by
Kunaal Naik

------

Follow us on Facebook

Also on Instagram

Also you can check our website

--------

----
#k-means_clustering #deeplearning #machinelearning #Decision_trees #gradient_boosting #varianc #gradiant_descent #python #deeplearning #technology #programming
#coding #bigdata #computerscience #data #dataanalytics #tech #datascientist #iot #pythonprogramming
#programmer #ml #developer #software #robotics #java #innovation #coder #javascript #datavisualization
#analytics #neuralnetworks #bhfyp

Machine Learning Center

Рекомендации по теме

K-Means clustering with Python Example

Machine Learning Tutorial Python - 13: K Means Clustering Algorithm

K-Means Clustering Algorithm in Python | Practical Example | Student Clustering Example | sklearn

K-Means Clustering Algorithm with Python Tutorial

K-Means Clustering From Scratch in Python (Mathematical)

Hands On Data Science Project: Understand Customers with KMeans Clustering in Python

K-means Clustering From Scratch In Python [Machine Learning Tutorial]

K Means Clustering Algorithm | K Means Example in Python | Machine Learning Algorithms | Edureka

StatQuest: K-means clustering

Week 6: Machine Learning Basics for Astronomy

K-Means Clustering in Python - Machine Learning From Scratch 12 - Python Tutorial

K Means Clustering Algorithm | K Means In Python | Machine Learning Algorithms |Simplilearn

Python Bytes - Machine Learning K Means Part 4 Cluster Counts & Coordinates Code in Description

K Means Clustering in 15 Minutes | K means clustering explained | K means clustering in python

K-Means Clustering Example in Python

How to implement K-Means from scratch with Python

K-Means Clustering Model Using Python | Data Science Algorithms | Edureka | ML Rewind -2

Sklearn K-Means Python Example | Interpreting Clustering results

How to Perform K Means Clustering in Python( Step by Step)

KMeans Clustering Example | Python ML | Spotify dataset

K-Means Clustering Model Using Python | Data Science Algorithms | Edureka | Data Science Rewind -2

K-Means Clustering in Python - Clients Segmentation with Unsupervised Learning

Machine Learning Tutorial 11 - K-Means Clustering with scikit-learn Python Example

K means clustering algorithm example using Python - Part 2

K Means Clustering Algorithm | K Means Clustering Python | Machine Learning Tutorial | Intellipaat