SAGA-GIS Tool Library Documentation (v7.8.2)

Tool SVM Classification

Support Vector Machine (SVM) based classification for grids.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputGridsGrid list, inputGRIDS--
Training AreasShapes, inputROI--
OutputClassificationGrid, outputCLASSES--
Look-up Table (*)Table, output, optionalCLASSES_LUTA reference list of the grid values that have been assigned to the training classes.-
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
ScalingChoiceSCALING-Available Choices:
[0] none
[1] normalize (0-1)
[2] standardize
Default: 2
Verbose MessagesBooleanMESSAGE-Default: 0
Model SourceChoiceMODEL_SRC-Available Choices:
[0] create from training areas
[1] restore from file
Default: 0
Restore Model from FileFile pathMODEL_LOAD--
Class IdentifierTable fieldROI_ID--
Store Model to FileFile pathMODEL_SAVE--
SVM TypeChoiceSVM_TYPE-Available Choices:
[0] C-SVC
[1] nu-SVC
[2] one-class SVM
[3] epsilon-SVR
[4] nu-SVR
Default: 0
Kernel TypeChoiceKERNEL_TYPElinear: u'*v polynomial: (gamma*u'*v + coef0)^degree radial basis function: exp(-gamma*|u-v|^2) sigmoid: tanh(gamma*u'*v + coef0)Available Choices:
[0] linear
[1] polynomial
[2] radial basis function
[3] sigmoid
Default: 2
DegreeIntegerDEGREEdegree in kernel functionDefault: 3
GammaFloating pointGAMMAgamma in kernel functionDefault: 0.000000
coef0Floating pointCOEF0coef0 in kernel functionDefault: 0.000000
CFloating pointCOSTparameter C (cost) of C-SVC, epsilon-SVR, and nu-SVRDefault: 1.000000
nu-SVRFloating pointNUparameter nu of nu-SVC, one-class SVM, and nu-SVRDefault: 0.500000
SVR EpsilonFloating pointEPS_SVRepsilon in loss function of epsilon-SVRDefault: 0.100000
Cache SizeFloating pointCACHE_SIZEcache memory size in MBDefault: 100.000000
EpsilonFloating pointEPStolerance of termination criterionDefault: 0.001000
ShrinkingBooleanSHRINKINGwhether to use the shrinking heuristicsDefault: 0
Probability EstimatesBooleanPROBABILITYwhether to train a SVC or SVR model for probability estimatesDefault: 0
Cross ValidationIntegerCROSSVALn-fold cross validation: n must > 1Minimum: 1
Default: 1
(*) optional

Command-line

Usage: saga_cmd imagery_svm 0 [-GRIDS <str>] [-CLASSES <str>] [-CLASSES_LUT <str>] [-SCALING <str>] [-MESSAGE <str>] [-MODEL_SRC <str>] [-MODEL_LOAD <str>] [-ROI <str>] [-ROI_ID <str>] [-MODEL_SAVE <str>] [-SVM_TYPE <str>] [-KERNEL_TYPE <str>] [-DEGREE <num>] [-GAMMA <double>] [-COEF0 <double>] [-COST <double>] [-NU <double>] [-EPS_SVR <double>] [-CACHE_SIZE <double>] [-EPS <double>] [-SHRINKING <str>] [-PROBABILITY <str>] [-CROSSVAL <num>]
  -GRIDS:<str>        	Grids
	Grid list, input
  -CLASSES:<str>      	Classification
	Grid, output
  -CLASSES_LUT:<str>  	Look-up Table
	Table, output, optional
  -SCALING:<str>      	Scaling
	Choice
	Available Choices:
	[0] none
	[1] normalize (0-1)
	[2] standardize
	Default: 2
  -MESSAGE:<str>      	Verbose Messages
	Boolean
	Default: 0
  -MODEL_SRC:<str>    	Model Source
	Choice
	Available Choices:
	[0] create from training areas
	[1] restore from file
	Default: 0
  -MODEL_LOAD:<str>   	Restore Model from File
	File path
  -ROI:<str>          	Training Areas
	Shapes, input
  -ROI_ID:<str>       	Class Identifier
	Table field
  -MODEL_SAVE:<str>   	Store Model to File
	File path
  -SVM_TYPE:<str>     	SVM Type
	Choice
	Available Choices:
	[0] C-SVC
	[1] nu-SVC
	[2] one-class SVM
	[3] epsilon-SVR
	[4] nu-SVR
	Default: 0
  -KERNEL_TYPE:<str>  	Kernel Type
	Choice
	Available Choices:
	[0] linear
	[1] polynomial
	[2] radial basis function
	[3] sigmoid
	Default: 2
  -DEGREE:<num>       	Degree
	Integer
	Default: 3
  -GAMMA:<double>     	Gamma
	Floating point
	Default: 0.000000
  -COEF0:<double>     	coef0
	Floating point
	Default: 0.000000
  -COST:<double>      	C
	Floating point
	Default: 1.000000
  -NU:<double>        	nu-SVR
	Floating point
	Default: 0.500000
  -EPS_SVR:<double>   	SVR Epsilon
	Floating point
	Default: 0.100000
  -CACHE_SIZE:<double>	Cache Size
	Floating point
	Default: 100.000000
  -EPS:<double>       	Epsilon
	Floating point
	Default: 0.001000
  -SHRINKING:<str>    	Shrinking
	Boolean
	Default: 0
  -PROBABILITY:<str>  	Probability Estimates
	Boolean
	Default: 0
  -CROSSVAL:<num>     	Cross Validation
	Integer
	Minimum: 1
	Default: 1