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| OnlineLearnVisitor Class Reference |

`#include <vigra/random_forest/rf_visitors.hxx>`

Inheritance diagram for OnlineLearnVisitor:

## Public Member Functions
void | reset_tree (int tree_id)
template<class RF , class PR , class SM , class ST >
void | visit_after_tree (RF &, PR &, SM &, ST &, int)
template<class RF , class PR >
void | visit_at_beginning (RF &rf, const PR &)
template<class TR , class IntT , class TopT , class Feat >
void | visit_internal_node (TR &tr, IntT index, TopT node_t, Feat &features)
Public Member Functions inherited from VisitorBase
double | return_val ()
template<class Tree , class Split , class Region , class Feature_t , class Label_t >
void | visit_after_split (Tree &tree, Split &split, Region &parent, Region &leftChild, Region &rightChild, Feature_t &features, Label_t &labels)
template<class RF , class PR , class SM , class ST >
void | visit_after_tree (RF &rf, PR &pr, SM &sm, ST &st, int index)
template<class RF , class PR >
void | visit_at_beginning (RF const &rf, PR const &pr)
template<class RF , class PR >
void | visit_at_end (RF const &rf, PR const &pr)
template<class TR , class IntT , class TopT , class Feat >
void | visit_external_node (TR &tr, IntT index, TopT node_t, Feat &features)
template<class TR , class IntT , class TopT , class Feat >
void | visit_internal_node (TR &, IntT, TopT, Feat &)

## Detailed Description

Visitor to gain information, later needed for online learning.

## Member Function Documentation

void visit_at_beginning | ( | RF & | rf,
|  | const PR & |
| ) |  |

Initialize, set the number of trees

void reset_tree | ( | int | tree_id | ) |

Reset a tree

void visit_after_tree | ( | RF & | ,
|  | PR & | ,
|  | SM & | ,
|  | ST & | ,
|  | int |
| ) |  |

simply increase the tree count

void visit_internal_node | ( | TR & | tr,
|  | IntT | index,
|  | TopT | node_t,
|  | Feat & | features
| ) |  |

do something when visiting a internal node during getToLeaf

remember as last node id, for finding the parent of the last external node also: adjust class counts and borders

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

- vigra/random_forest/rf_visitors.hxx

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany | html generated using doxygen and Python vigra 1.11.1 (Fri May 19 2017)