get_support_vector_num_class_svmT_get_support_vector_num_class_svmget_support_vector_num_class_svmGetSupportVectorNumClassSvmGetSupportVectorNumClassSvm (Operator)

Name

get_support_vector_num_class_svmT_get_support_vector_num_class_svmget_support_vector_num_class_svmGetSupportVectorNumClassSvmGetSupportVectorNumClassSvm — Return the number of support vectors of a support vector machine.

Signature

get_support_vector_num_class_svm( : : SVMHandle : NumSupportVectors, NumSVPerSVM)

Description

get_support_vector_num_class_svmget_support_vector_num_class_svmget_support_vector_num_class_svmGetSupportVectorNumClassSvmGetSupportVectorNumClassSvm returns in NumSupportVectorsNumSupportVectorsNumSupportVectorsNumSupportVectorsnumSupportVectors the number of support vectors that are stored in the support vector machine (SVM) given by SVMHandleSVMHandleSVMHandleSVMHandleSVMHandle. get_support_vector_num_class_svmget_support_vector_num_class_svmget_support_vector_num_class_svmGetSupportVectorNumClassSvmGetSupportVectorNumClassSvm should be called before the labels of individual support vectors are read out with get_support_vector_class_svmget_support_vector_class_svmget_support_vector_class_svmGetSupportVectorClassSvmGetSupportVectorClassSvm, e.g., for visualizing which the training data become a SV (see get_support_vector_class_svmget_support_vector_class_svmget_support_vector_class_svmGetSupportVectorClassSvmGetSupportVectorClassSvm). The number of SVs in each classifier is listed in NumSVPerSVMNumSVPerSVMNumSVPerSVMNumSVPerSVMnumSVPerSVM. The reason that its sum differs from the Number obtained in NumSupportVectorsNumSupportVectorsNumSupportVectorsNumSupportVectorsnumSupportVectors is that SV evaluations are reused throughout different sub-classifiers. NumSVPerSVMNumSVPerSVMNumSVPerSVMNumSVPerSVMnumSVPerSVM provides the possibility for controlling the process of speeding up SVM classification time with the operator reduce_class_svmreduce_class_svmreduce_class_svmReduceClassSvmReduceClassSvm.

Parallelization

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Processed without parallelization.

Parameters

SVMHandleSVMHandleSVMHandleSVMHandleSVMHandle (input_control) class_svm → (integer)

SVM handle.

NumSupportVectorsNumSupportVectorsNumSupportVectorsNumSupportVectorsnumSupportVectors (output_control) integer → (integer)

Total number of support vectors.

NumSVPerSVMNumSVPerSVMNumSVPerSVMNumSVPerSVMnumSVPerSVM (output_control) integer-array → (integer)

Number of SV of each sub-SVM.

Result

If SVMHandleSVMHandleSVMHandleSVMHandleSVMHandle is valid the operator get_sample_num_class_svmget_sample_num_class_svmget_sample_num_class_svmGetSampleNumClassSvmGetSampleNumClassSvm returns the value 2 (H_MSG_TRUE). If necessary, an exception is raised.

Possible Predecessors

train_class_svmtrain_class_svmtrain_class_svmTrainClassSvmTrainClassSvm

Possible Successors

get_sample_class_svmget_sample_class_svmget_sample_class_svmGetSampleClassSvmGetSampleClassSvm

Module

Foundation

Table of Contents / Classification / Support Vector Machines

Operators

HALCON Reference Manual 10.0.2