1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "itkMacro.h"
#include "otbDecisionTree.h"
enum WheatTypes { WinterWheat, SummerWheat };
int otbDecisionTreeBuild(int itkNotUsed(argc), char* itkNotUsed(argv) [])
{
/** We build the following decision tree
-------------
( DOY LT 100 )
-------------
Yes -/ -- No
--/ \--
------------- -------------
( NDVI GT 0.7 ) ( NDVI GT 0.7 )
------------- -------------
/ -- /\
Yes -/ \- No Yes-/ \- No
-/ \ -/ \-
WW SW SW WW
*/
typedef bool AttributeValueType;
typedef otb::DecisionTree< AttributeValueType, WheatTypes > DecisionTreeType;
DecisionTreeType::Pointer decisionTree = DecisionTreeType::New();
DecisionTreeType::Pointer doyLT100Tree = DecisionTreeType::New();
DecisionTreeType::Pointer doyGT100Tree = DecisionTreeType::New();
decisionTree->SetAttribute( 0 );
decisionTree->AddBranch( false, doyGT100Tree );
decisionTree->AddBranch( true, doyLT100Tree );
doyLT100Tree->SetAttribute( 1 );
doyLT100Tree->AddBranch( false, SummerWheat );
doyLT100Tree->AddBranch( true, WinterWheat );
doyGT100Tree->SetAttribute( 1 );
doyGT100Tree->AddBranch( false, WinterWheat );
doyGT100Tree->AddBranch( true, SummerWheat );
// Build some examples for testing
DecisionTreeType::ExampleType ww_in_summer; //(DoY<100), (NDVI>0.7)
ww_in_summer.push_back(false);
ww_in_summer.push_back(false);
DecisionTreeType::ExampleType ww_in_winter;
ww_in_winter.push_back(true);
ww_in_winter.push_back(true);
DecisionTreeType::ExampleType sw_in_winter;
sw_in_winter.push_back(true);
sw_in_winter.push_back(false);
DecisionTreeType::ExampleType sw_in_summer;
sw_in_summer.push_back(false);
sw_in_summer.push_back(true);
std::cout << "ww_in_summer" << std::endl;
if( decisionTree->Decide( ww_in_summer ) != WinterWheat )
{
std::cerr << "ww_in_summer yields " << decisionTree->Decide( ww_in_summer ) << std::endl;
return EXIT_FAILURE;
}
std::cout << "sw_in_winter" << std::endl;
if( decisionTree->Decide( sw_in_winter ) != SummerWheat )
{
std::cerr << "sw_in_winter yields " << decisionTree->Decide( sw_in_winter ) << std::endl;
return EXIT_FAILURE;
}
std::cout << "sw_in_summer" << std::endl;
if( decisionTree->Decide( sw_in_summer ) != SummerWheat )
{
std::cerr << "sw_in_summer yields " << decisionTree->Decide( sw_in_summer ) << std::endl;
return EXIT_FAILURE;
}
std::cout << "ww_in_winter" << std::endl;
if( decisionTree->Decide( ww_in_winter ) != WinterWheat )
{
std::cerr << "ww_in_winter yields " << decisionTree->Decide( ww_in_winter ) << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
