Accuracy Assessment on GEE 

Accuracy Assessment on GEE
*Accuracy assessment in Google Earth Engine (GEE) is an important step in the process of supervised classification1. It involves comparing the classified image (or data) to a reference dataset that is considered to be accurate1. This comparison is often done using a confusion matrix.
// Add a random column to each feature
var withRandom = training.randomColumn('random');
// Split the points into training and validation sets
var split = 0.7; // 70% training, 30% testing
// Perform an accuracy assessment
var validated = validationSet.classify(classifier);