File weight_vector_dense.hpp

template<typename T>
class DenseWeightVector : public IterableVectorDecorator<AllocatedVector<T>>, public IWeightVector
#include <weight_vector_dense.hpp>

An one-dimensional vector that provides random access to a fixed number of weights stored in a C-contiguous array.

Template Parameters:

T – The type of the weights

Public Functions

DenseWeightVector(uint32 numElements, bool init = false)
Parameters:

  • numElements – The number of elements in the vector

  • init – True, if all elements in the vector should be value-initialized, false otherwise

uint32 getNumNonZeroWeights() const

Returns the number of non-zero weights.

Returns:

The number of non-zero weights

void setNumNonZeroWeights(uint32 numNonZeroWeights)

Sets the number of non-zero weights.

Parameters:

numNonZeroWeights – The number of non-zero weights to be set

virtual bool hasZeroWeights() const override

Returns whether the vector contains any zero weights or not.

Returns:

True, if the vector contains any zero weights, false otherwise

virtual std::unique_ptr<IFeatureSubspace> createFeatureSubspace(IFeatureSpace &featureSpace) const override

Creates and returns a new instance of type IFeatureSubspace that uses the weights in this vector for the training examples it includes.

Parameters:

featureSpace – A reference to an object of type IFeatureSpace that should be used to create the instance

Returns:

An unique pointer to an object of type IFeatureSubspace that has been created

Private Members

uint32 numNonZeroWeights_