ml.js - Machine learning tools in JavaScript

Introduction

This library is a compilation of the tools developed in the mljs organization.
It is mainly maintained for use in the browser. If you are working with Node.js, you might prefer to add to your dependencies only the libraries that you need, as they are usually published to npm more often.
We prefix all our npm package names with ml- (eg. ml-matrix) so they are easy to find.

To include the ml.js library in a web page:

<script src="https://www.lactame.com/lib/ml/4.0.0/ml.min.js"></script>

It will be available as the global ML variable. The package is in UMD format.

List of included libraries

Unsupervised learning

• Principal component analysis (PCA): ML.PCA
• Hierarchical clustering: ML.HClust
• K-means clustering: ML.KMeans

Supervised learning

• Naive Bayes: ML.NaiveBayes
• K-Nearest Neighbor (KNN): ML.KNN
• Partial least squares (PLS): ML.PLS
• K-OPLS: ML.KOPLS
• Cross-validation: ML.CrossValidation
• Confusion matrix: ML.ConfusionMatrix
• Decision tree classifier: ML.DecisionTreeClassifier
• Random forest classifier: ML.RandomForestClassifier

Artificial neural networks (ANN)

• Feedforward Neural Networks: ML.FNN
• Self-organizing map / Kohonen networks: ML.SOM

Regression

• Simple linear regression: ML.SimpleLinearRegression
• Polynomial regression: ML.PolynomialRegression
• Multivariate linear regression: ML.MultivariateLinearRegression
• Power regression: ML.PowerRegression
• Exponential regression: ML.ExponentialRegression
• Theil-Sen regression: ML.TheilSenRegression
• Robust polynomial regression: ML.RobustPolynomialRegression
• Decision tree regression: ML.DecisionTreeRegression
• Random forest regression: ML.RandomForestRegression

Optimization

• Levenberg-Marquardt: ML.levenbergMarquardt
• Fast Combinatorial Non-negative Least Squares: ML.FCNNLS

Math

• Matrix: ML.Matrix (Matrix class)
• Singular value decomposition (SVD): ML.SVD
• Eigenvalue decomposition (EVD): ML.EVD
• Cholesky decomposition: ML.CholeskyDecomposition
• Lu decomposition: ML.LuDecomposition
• Qr decomposition: ML.QrDecomposition
• Sparse matrix: ML.SparseMatrix
• Kernels: ML.Kernel
• Distance functions: ML.Distance
• Similarity functions: ML.Similarity
• Distance matrix: ML.distanceMatrix
• XORShift-add RNG: ML.XSadd

ML.Array

• ML.Array.min
• ML.Array.max
• ML.Array.median
• ML.Array.mean
• ML.Array.mode
• ML.Array.normed
• ML.Array.rescale
• ML.Array.sequentialFill
• ML.Array.standardDeviation
• ML.Array.variance

ML.ArrayXY

Functions dealing with an object containing 2 properties x and y, both arrays.

Example:

let result = ML.ArrayXY.sortX({ x: [2, 3, 1], y: [4, 6, 2] });
// result = {x: [1,2,3], y: [2,4,6]}

• ML.ArrayXY.weightedMerge: Merge abscissa values on similar ordinates and weight the group of abscissa

• ML.ArrayXY.maxMerge: Merge abscissa values on similar ordinates and keeps the abscissa with bigger ordinate value

• ML.ArrayXY.closestX: Get the closest point for a specific abscissa value

• ML.ArrayXY.centroidsMerge: Merge abscissa values if the ordinate value is in a list of centroids

• ML.ArrayXY.sortX: Sort a set of point based on the abscissas values

• ML.ArrayXY.maxY: Sort a set of point based on the abscissas values

• ML.ArrayXY.uniqueX: Ensure that x values are unique

Statistics

• Performance (ROC curve): ML.Performance

Data preprocessing

• Principal component analysis (PCA): ML.PCA
• Savitzky-Golay filter: ML.savitzkyGolay

Utility

• Bit array operations: ML.BitArray
• Hash table: ML.HashTable
• Pad array: ML.padArray
• Binary search: ML.binarySearch
• Number comparison functions for sorting: ML.numSort
• Random number generation: ML.Random

License

MIT