BinarySplit Class |
Namespace: Accord.MachineLearning
The BinarySplit type exposes the following members.
Name | Description | |
---|---|---|
BinarySplit(Int32) |
Initializes a new instance of the Binary Split algorithm
| |
BinarySplit(Int32, IDistanceDouble) |
Initializes a new instance of the Binary Split algorithm
|
Name | Description | |
---|---|---|
Centroids |
Gets or sets the cluster centroids.
(Inherited from KMeans.) | |
Clusters |
Gets the clusters found by K-means.
(Inherited from KMeans.) | |
ComputeCovariances |
Gets or sets whether covariance matrices for the clusters should
be computed at the end of an iteration. Default is true.
(Inherited from KMeans.) | |
ComputeError |
Gets or sets whether the clustering distortion error (the
average distance between all data points and the cluster
centroids) should be computed at the end of the algorithm.
The result will be stored in Error. Default is true.
(Inherited from KMeans.) | |
ComputeProportions |
Gets or sets whether cluster proportions
should be calculated after the learning algorithm has finished computing the clusters. Default
is false.
| |
Dimension |
Gets the dimensionality of the data space.
(Inherited from KMeans.) | |
Distance |
Gets or sets the distance function used
as a distance metric between data points.
(Inherited from KMeans.) | |
Error |
Gets the cluster distortion error after the
last call to this class' Compute methods.
(Inherited from KMeans.) | |
Iterations |
Gets the number of iterations performed in the
last call to this class' Compute methods.
(Inherited from KMeans.) | |
K |
Gets the number of clusters.
(Inherited from KMeans.) | |
MaxIterations |
Gets or sets the maximum number of iterations to
be performed by the method. If set to zero, no
iteration limit will be imposed. Default is 0.
(Inherited from KMeans.) | |
ParallelOptions |
Gets or sets the parallelization options for this algorithm.
(Inherited from ParallelLearningBase.) | |
Token |
Gets or sets a cancellation token that can be used
to cancel the algorithm while it is running.
(Inherited from ParallelLearningBase.) | |
Tolerance |
Gets or sets the relative convergence threshold
for stopping the algorithm. Default is 1e-5.
(Inherited from KMeans.) | |
UseSeeding |
Gets or sets the strategy used to initialize the
centroids of the clustering algorithm. Default is
KMeansPlusPlus.
(Inherited from KMeans.) |
Name | Description | |
---|---|---|
Compute(Double) | Obsolete.
Divides the input data into K clusters.
(Inherited from KMeans.) | |
Compute(Double, Double) | Obsolete.
Divides the input data into K clusters.
(Inherited from KMeans.) | |
Compute(Double, Double) | Obsolete.
Divides the input data into K clusters.
(Inherited from KMeans.) | |
ComputeInformation(Double) |
Computes the information about each cluster (covariance, proportions and error).
(Inherited from KMeans.) | |
ComputeInformation(Double, Int32) |
Computes the information about each cluster (covariance, proportions and error).
(Inherited from KMeans.) | |
converged |
Determines if the algorithm has converged by comparing the
centroids between two consecutive iterations.
(Inherited from KMeans.) | |
Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) | |
Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) | |
GetHashCode | Serves as the default hash function. (Inherited from Object.) | |
GetType | Gets the Type of the current instance. (Inherited from Object.) | |
Learn |
Learns a model that can map the given inputs to the desired outputs.
(Overrides KMeansLearn(Double, Double).) | |
MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) | |
Randomize |
Randomizes the clusters inside a dataset.
(Inherited from KMeans.) | |
ToString | Returns a string that represents the current object. (Inherited from Object.) |
Name | Description | |
---|---|---|
HasMethod |
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.) | |
IsEqual |
Compares two objects for equality, performing an elementwise
comparison if the elements are vectors or matrices.
(Defined by Matrix.) | |
To(Type) | Overloaded.
Converts an object into another type, irrespective of whether
the conversion can be done at compile time or not. This can be
used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.) | |
ToT | Overloaded.
Converts an object into another type, irrespective of whether
the conversion can be done at compile time or not. This can be
used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.) |
// Use a fixed seed for reproducibility Accord.Math.Random.Generator.Seed = 0; // Declare some data to be clustered double[][] input = { new double[] { -5, -2, -1 }, new double[] { -5, -5, -6 }, new double[] { 2, 1, 1 }, new double[] { 1, 1, 2 }, new double[] { 1, 2, 2 }, new double[] { 3, 1, 2 }, new double[] { 11, 5, 4 }, new double[] { 15, 5, 6 }, new double[] { 10, 5, 6 }, }; // Create a new binary split with 3 clusters BinarySplit binarySplit = new BinarySplit(3); // Learn a data partitioning using the Binary Split algorithm KMeansClusterCollection clustering = binarySplit.Learn(input); // Predict group labels for each point int[] output = clustering.Decide(input); // As a result, the first two observations should belong to the // same cluster (thus having the same label). The same should // happen to the next four observations and to the last three.