gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy > Class Template Reference

Class used to perform Decision Tree Regression in the FMDP Framework. More...

#include <agrum/base/multidim/patterns/treeRegress.h>

Collaboration diagram for gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >:

Public Member Functions
Constructors / Destructors
	TreeRegress (const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > *qAction, const Bijection< const DiscreteVariable *, const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > * > pxi)
	Default constructor.
	~TreeRegress ()
	Default destructor.
Main Method
MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > *	compute ()
	Computes and builds the Function Graph that is the result of the operation.

Private Member Functions
MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > *	_xPloreVFunc_ (NodeId currentNodeId)
	The whatever 1.

Private Attributes
const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > *	_vFunc_
	The function graphs used for the operation.
const Bijection< const DiscreteVariable *, const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > * >	_pxi_
HashTable< const DiscreteVariable *, Idx >	_context_

Detailed Description

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy = ExactTerminalNodePolicy>
class gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >

Class used to perform Decision Tree Regression in the FMDP Framework.

Definition at line 71 of file treeRegress.h.

Constructor & Destructor Documentation

TreeRegress()

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy>

gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::TreeRegress	(	const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > *	qAction,
		const Bijection< const DiscreteVariable *, const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > * >	pxi )

Default constructor.

Definition at line 65 of file treeRegress_tpl.h.

                                                                                             :
      _vFunc_(qAction), _pxi_(pxi) {
    GUM_CONSTRUCTOR(TreeRegress);
  }

References TreeRegress(), _pxi_, and _vFunc_.

Referenced by TreeRegress(), and ~TreeRegress().

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~TreeRegress()

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy>

gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::~TreeRegress

(

)

Default destructor.

Definition at line 77 of file treeRegress_tpl.h.

                                                                                                {
    GUM_DESTRUCTOR(TreeRegress);
  }

References TreeRegress().

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Member Function Documentation

_xPloreVFunc_()

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy>

MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > * gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::_xPloreVFunc_ ( NodeId currentNodeId )

private

The whatever 1.

Definition at line 102 of file treeRegress_tpl.h.

                                              {
    const InternalNode* currentNode = _vFunc_->node(currentNodeId);
 
    std::vector< MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* > varbucket;
 
    for (Idx moda = 0; moda < currentNode->nodeVar()->domainSize(); ++moda) {
      MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* vpxi = nullptr;
      _context_.insert(currentNode->nodeVar(), moda);
      if (_vFunc_->isTerminalNode(currentNode->son(moda))) {
        GUM_SCALAR value = _vFunc_->nodeValue(currentNode->son(moda));
        if (value) {
          vpxi = MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >::getTreeInstance();
          vpxi->manager()->setRootNode(vpxi->manager()->addTerminalNode(value));
        }
      } else {
        vpxi = _xPloreVFunc_(currentNode->son(moda));
      }
 
      if (vpxi != nullptr) {
        TreeOperator< GUM_SCALAR, COMBINEOPERATOR > combinope(vpxi,
                                                              _pxi_.second(currentNode->nodeVar()),
                                                              _context_);
        varbucket.push_back(combinope.compute());
      }
      delete vpxi;
      _context_.erase(currentNode->nodeVar());
    }
 
    if (varbucket.empty()) return nullptr;
 
    MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* vp = varbucket.back();
    varbucket.pop_back();
    while (!varbucket.empty()) {
      MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* temp = vp;
      TreeOperator< GUM_SCALAR, PROJECTOPERATOR >              projope(vp, varbucket.back());
      vp = projope.compute();
      delete temp;
      temp = varbucket.back();
      varbucket.pop_back();
      delete temp;
    }
 
    return vp;
  }

References _context_, _pxi_, _vFunc_, _xPloreVFunc_(), gum::TreeOperator< GUM_SCALAR, COMBINEOPERATOR, TerminalNodePolicy >::compute(), gum::MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >::getTreeInstance(), gum::InternalNode::nodeVar(), and gum::InternalNode::son().

Referenced by _xPloreVFunc_(), and compute().

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compute()

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy>

MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy > * gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::compute

(

)

Computes and builds the Function Graph that is the result of the operation.

Definition at line 88 of file treeRegress_tpl.h.

                                                                                               {
    MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* ret;
    if (_vFunc_->isTerminalNode(_vFunc_->root())) {
      ret = MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >::getTreeInstance();
      ret->copy(*_vFunc_);
    } else ret = _xPloreVFunc_(_vFunc_->root());
    return ret;
  }

References _vFunc_, _xPloreVFunc_(), gum::MultiDimContainer< GUM_SCALAR >::copy(), and gum::MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >::getTreeInstance().

Referenced by gum::TreeOperatorStrategy< GUM_SCALAR >::regress().

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Member Data Documentation

_context_

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy = ExactTerminalNodePolicy>

HashTable< const DiscreteVariable*, Idx > gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::_context_

private

Definition at line 108 of file treeRegress.h.

Referenced by _xPloreVFunc_().

_pxi_

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy = ExactTerminalNodePolicy>

const Bijection< const DiscreteVariable*, const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* > gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::_pxi_

private

Definition at line 107 of file treeRegress.h.

Referenced by TreeRegress(), and _xPloreVFunc_().

_vFunc_

template<typename GUM_SCALAR, template< typename > class COMBINEOPERATOR, template< typename > class PROJECTOPERATOR, template< typename > class TerminalNodePolicy = ExactTerminalNodePolicy>

const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* gum::TreeRegress< GUM_SCALAR, COMBINEOPERATOR, PROJECTOPERATOR, TerminalNodePolicy >::_vFunc_

private

The function graphs used for the operation.

Definition at line 104 of file treeRegress.h.

Referenced by TreeRegress(), _xPloreVFunc_(), and compute().

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

• agrum/base/multidim/utils/FunctionGraphUtilities/operators/treeRegress.h
• agrum/base/multidim/utils/FunctionGraphUtilities/operators/treeRegress_tpl.h