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I have been developing a comprehensive machine learning library of advanced algorithms, called SMILE (Statistical Machine Intelligence and Learning Engine), for several years with my spare time. Today I am very pleased to announce that SMILE is now available on GitHub under Apache 2.0 license. SMILE is self contained and requires only the standard Java library. With advanced data structures and learning algorithms, SMILE achieves the state of the art of performance.

  • Classification: Support Vector Machines, Decision Trees, AdaBoost, Gradient Boosting, Random Forest, Logistic Regression, Neural Networks, RBF Networks, Maximum Entropy Classifier, KNN, Naïve Bayesian, Fisher/Linear/Quadratic/Regularized Discriminant Analysis.
  • Regression: Support Vector Regression, Gaussian Process, Regression Trees, Gradient Boosting, Random Forest, RBF Networks, OLS, LASSO, Ridge Regression.
  • Feature Selection: Genetic Algorithm based Feature Selection, Ensemble Learning based Feature Selection, Signal Noise ratio, Sum Squares ratio.
  • Clustering: BIRCH, CLARANS, DBScan, DENCLUE, Deterministic Annealing, K-Means, X-Means, G-Means, Neural Gas, Growing Neural Gas, Hierarchical Clustering, Sequential Information Bottleneck, Self-Organizing Maps, Spectral Clustering, Minimum Entropy Clustering.
  • Association Rule & Frequent Itemset Mining: FP-growth mining algorithm
  • Manifold learning: IsoMap, LLE, Laplacian Eigenmap, PCA, Kernel PCA, Probabilistic PCA, GHA, Random Projection
  • Multi-Dimensional Scaling: Classical MDS, Isotonic MDS, Sammon Mapping
  • Nearest Neighbor Search: BK-Tree, Cover Tree, KD-Tree, LSH
  • Sequence Learning: Hidden Markov Model

SMILE is well documented and you can browse the javadoc for more information.

SMILE also has a Swing-based data visualization library SmilePlot, which provides scatter plot, line plot, staircase plot, bar plot, box plot, histogram, 3D histogram, dendrogram, heatmap, hexmap, qq plot, contour plot, surface, and wireframe. The class PlotCanvas provides builtin functions such as zoom in/out, export, print, customization, etc.

SmilePlot requires SwingX library for JXTable. But if your environment cannot use SwingX, it is easy to remove this dependency by using JTable.

Demo Gallery

Kernel PCA
Kernel PCA
IsoMap
IsoMap
MDS
Multi-Dimensional Scaling
SOM
SOM
Neural Network
Neural Network
SVM
SVM
Agglomerative Clustering
Agglomerative Clustering
X-Means
X-Means
DBScan
DBScan
Neural Gas
Neural Gas
Wavelet
Wavelet
Mixture
Exponential Family Mixture
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