drwnQuadraticJointFeatureMap Class Reference

Same as drwnSquareJointFeatureMap but adds cross-terms. More...

Inheritance diagram for drwnQuadraticJointFeatureMap:

Public Member Functions
	drwnQuadraticJointFeatureMap (int nFeatures, int nClasses)
const char *	type () const
	returns object type as a string (e.g., Foo::type() { return "Foo"; })
drwnQuadraticJointFeatureMap *	clone () const
	returns a copy of the class usually implemented as virtual Foo* clone() { return new Foo(*this); }
int	numParameters () const
	returns the number of features in the (joint) output space
vector< double >	operator() (const vector< double > &x, int y) const
	feature vector for given y
vector< double >	operator() (const vector< double > &x) const
	feature vector summed over y
double	dot (const vector< double > &theta, const vector< double > &x, int y) const
	dot product
double	dot (const vector< double > &theta, const vector< double > &x) const
	dot product
void	mac (vector< double > &theta, const vector< double > &x, double alpha, int y) const
	multiply-accumulate
void	mac (vector< double > &theta, const vector< double > &x, const vector< double > &alpha) const
	multiply-accumulate
Public Member Functions inherited from drwnJointFeatureMap
	drwnJointFeatureMap ()
	default constructor
	drwnJointFeatureMap (int nFeatures, int nClasses)
	construct with known number of input features and classes
virtual	~drwnJointFeatureMap ()
	destructor
int	numFeatures () const
	returns the number of features in the input space
int	numClasses () const
	returns the number of classes
virtual void	initialize (int nFeatures, int nClasses)
	initialize number of classes and number of features
double	dot (const vector< double > &theta, const vector< double > &x) const
	returns the dot product (default behaviour is very inefficient)

Additional Inherited Members
Protected Attributes inherited from drwnJointFeatureMap
int	_nFeatures
	number of input features
int	_nClasses
	number of class labels

Detailed Description

Same as drwnSquareJointFeatureMap but adds cross-terms.

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The documentation for this class was generated from the following file:

• drwnFeatureMaps.h