mlpack 3.4.2
silhouette_score.hpp
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1
12#ifndef MLPACK_CORE_CV_METRICS_SILHOUETTE_SCORE_HPP
13#define MLPACK_CORE_CV_METRICS_SILHOUETTE_SCORE_HPP
14
15#include <mlpack/core.hpp>
16
17namespace mlpack {
18namespace cv {
19
41{
42 public:
51 template<typename DataType, typename Metric>
52 static double Overall(const DataType& X,
53 const arma::Row<size_t>& labels,
54 const Metric& metric);
55
63 template<typename DataType>
64 static arma::rowvec SamplesScore(const DataType& distances,
65 const arma::Row<size_t>& labels);
66
76 template<typename DataType, typename Metric>
77 static arma::rowvec SamplesScore(const DataType& X,
78 const arma::Row<size_t>& labels,
79 const Metric& metric);
80
90 static double MeanDistanceFromCluster(const arma::colvec& distances,
91 const arma::Row<size_t>& labels,
92 const size_t& label,
93 const bool& sameCluster = false);
94
99 static const bool NeedsMinimization = false;
100};
101
102} // namespace cv
103} // namespace mlpack
104
105// Include implementation.
106#include "silhouette_score_impl.hpp"
107
108#endif
The Silhouette Score is a metric of performance for clustering that represents the quality of cluster...
static const bool NeedsMinimization
Information for hyper-parameter tuning code.
static double Overall(const DataType &X, const arma::Row< size_t > &labels, const Metric &metric)
Find the overall silhouette score.
static arma::rowvec SamplesScore(const DataType &distances, const arma::Row< size_t > &labels)
Find the individual silhouette scores for precomputted dissimilarites.
static arma::rowvec SamplesScore(const DataType &X, const arma::Row< size_t > &labels, const Metric &metric)
Find silhouette score of all individual elements.
static double MeanDistanceFromCluster(const arma::colvec &distances, const arma::Row< size_t > &labels, const size_t &label, const bool &sameCluster=false)
Find mean distance of element from a given cluster.
Include all of the base components required to write mlpack methods, and the main mlpack Doxygen docu...
Linear algebra utility functions, generally performed on matrices or vectors.
Definition: cv.hpp:1