1 | package de.ugoe.cs.cpdp;
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2 |
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3 | import java.io.File;
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4 | import java.io.FileInputStream;
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5 | import java.io.FileNotFoundException;
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6 | import java.io.IOException;
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7 | import java.io.InputStreamReader;
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8 | import java.io.UnsupportedEncodingException;
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9 | import java.util.LinkedList;
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10 | import java.util.List;
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11 | import java.util.logging.Level;
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12 |
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13 | import javax.xml.parsers.ParserConfigurationException;
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14 | import javax.xml.parsers.SAXParser;
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15 | import javax.xml.parsers.SAXParserFactory;
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16 |
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17 | import org.xml.sax.Attributes;
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18 | import org.xml.sax.InputSource;
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19 | import org.xml.sax.SAXException;
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20 | import org.xml.sax.helpers.DefaultHandler;
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21 |
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22 | import de.ugoe.cs.cpdp.dataprocessing.IProcessesingStrategy;
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23 | import de.ugoe.cs.cpdp.dataprocessing.ISetWiseProcessingStrategy;
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24 | import de.ugoe.cs.cpdp.dataselection.IPointWiseDataselectionStrategy;
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25 | import de.ugoe.cs.cpdp.dataselection.ISetWiseDataselectionStrategy;
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26 | import de.ugoe.cs.cpdp.eval.IEvaluationStrategy;
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27 | import de.ugoe.cs.cpdp.loader.IVersionLoader;
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28 | import de.ugoe.cs.cpdp.training.ISetWiseTrainingStrategy;
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29 | import de.ugoe.cs.cpdp.training.ITrainingStrategy;
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30 | import de.ugoe.cs.cpdp.versions.IVersionFilter;
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31 | import de.ugoe.cs.util.StringTools;
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32 | import de.ugoe.cs.util.console.Console;
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33 |
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34 | /**
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35 | * Class that contains all meta information about an experiment, i.e., its configuration. The configuration is loaded from an XML file.
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36 | * <br><br>
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37 | * In the current implementation, the experiment configuration can only be created using an XML file. Programmatic creation of experiment configurations is currently not possibly.
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38 | * @author Steffen Herbold
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39 | */
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40 | public class ExperimentConfiguration extends DefaultHandler {
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41 |
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42 | /**
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43 | * handle of the file that contains the configuration
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44 | */
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45 | private final File configFile;
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46 |
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47 | /**
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48 | * name of the experiment (automatically set to the file name without the .xml ending)
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49 | */
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50 | private String experimentName = "exp";
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51 |
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52 | /**
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53 | * loads instances
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54 | */
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55 | private List<IVersionLoader> loaders;
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56 |
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57 | /**
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58 | * path were the results of the experiments are stored
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59 | */
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60 | private String resultsPath = "results";
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61 |
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62 | /**
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63 | * data set filters applied to all data
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64 | */
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65 | private List<IVersionFilter> versionFilters;
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66 |
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67 | /**
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68 | * data set filters that decide if a data set is used as test data
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69 | */
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70 | private List<IVersionFilter> testVersionFilters;
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71 |
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72 | /**
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73 | * data set filters that decide if a data is used as candidate training data
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74 | */
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75 | private List<IVersionFilter> trainingVersionFilters;
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76 |
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77 | /**
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78 | * setwise data processors that are applied before the setwise data selection
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79 | */
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80 | private List<ISetWiseProcessingStrategy> setwisepreprocessors;
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81 |
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82 | /**
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83 | * setwise data selection strategies
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84 | */
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85 | private List<ISetWiseDataselectionStrategy> setwiseselectors;
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86 |
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87 | /**
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88 | * setwise data processors that are applied after the setwise data selection
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89 | */
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90 | private List<ISetWiseProcessingStrategy> setwisepostprocessors;
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91 |
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92 | /**
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93 | * setwise trainers, i.e., trainers that require the selected training data to be separate from each other
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94 | */
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95 | private List<ISetWiseTrainingStrategy> setwiseTrainers;
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96 |
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97 | /**
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98 | * data processors that are applied before the pointwise data selection
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99 | */
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100 | private List<IProcessesingStrategy> preprocessors;
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101 |
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102 | /**
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103 | * pointwise data selection strategies
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104 | */
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105 | private List<IPointWiseDataselectionStrategy> pointwiseselectors;
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106 |
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107 | /**
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108 | * data processors that are applied before the pointwise data selection
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109 | */
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110 | private List<IProcessesingStrategy> postprocessors;
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111 |
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112 | /**
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113 | * normal trainers, i.e., trainers that require the selected training data in a single data set
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114 | */
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115 | private List<ITrainingStrategy> trainers;
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116 |
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117 | /**
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118 | * evaluators used for the the experiment results
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119 | */
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120 | private List<IEvaluationStrategy> evaluators;
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121 |
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122 | /**
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123 | * indicates, if the classifier should be saved
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124 | */
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125 | private Boolean saveClassifier = null;
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126 |
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127 | /**
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128 | * indicates, which execution strategy to choose
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129 | * (e.g. CrossProjectExperiment, ClassifierCreationExecution).
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130 | * Default is CrossProjectExperiment.
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131 | */
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132 | private String executionStrategy = "CrossProjectExperiment";
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133 |
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134 | /**
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135 | * Constructor. Creates a new configuration from a given file.
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136 | * @param filename name of the file from the configuration is loaded.
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137 | * @throws ExperimentConfigurationException thrown if there is an error creating the configuration
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138 | */
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139 | public ExperimentConfiguration(String filename) throws ExperimentConfigurationException {
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140 | this(new File(filename));
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141 | }
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142 |
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143 | /**
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144 | * Constructor. Creates a new configuration from a given file.
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145 | * @param filename handle of the file from the configuration is loaded.
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146 | * @throws ExperimentConfigurationException thrown if there is an error creating the configuration
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147 | */
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148 | public ExperimentConfiguration(File file) throws ExperimentConfigurationException {
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149 | loaders = new LinkedList<>();
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150 | versionFilters = new LinkedList<>();
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151 | testVersionFilters = new LinkedList<>();
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152 | trainingVersionFilters = new LinkedList<>();
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153 | setwisepreprocessors = new LinkedList<>();
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154 | setwiseselectors = new LinkedList<>();
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155 | setwisepostprocessors = new LinkedList<>();
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156 | setwiseTrainers = new LinkedList<>();
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157 | preprocessors = new LinkedList<>();
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158 | pointwiseselectors = new LinkedList<>();
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159 | postprocessors = new LinkedList<>();
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160 | trainers = new LinkedList<>();
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161 | evaluators = new LinkedList<>();
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162 |
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163 | if (file == null) {
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164 | throw new IllegalArgumentException("file must not be null");
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165 | }
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166 | if (file.isDirectory()) {
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167 | throw new IllegalArgumentException("file must not be a directory");
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168 | }
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169 | configFile = file;
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170 |
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171 | experimentName = file.getName().split("\\.")[0];
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172 |
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173 | final SAXParserFactory spf = SAXParserFactory.newInstance();
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174 | spf.setValidating(true);
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175 |
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176 | SAXParser saxParser = null;
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177 | InputSource inputSource = null;
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178 | try {
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179 | saxParser = spf.newSAXParser();
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180 | } catch (ParserConfigurationException | SAXException e) {
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181 | throw new ExperimentConfigurationException(e);
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182 | }
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183 |
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184 | InputStreamReader reader = null;
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185 | try {
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186 | reader = new InputStreamReader(new FileInputStream(file), "UTF-8");
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187 | inputSource = new InputSource(reader);
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188 | } catch (UnsupportedEncodingException | FileNotFoundException e) {
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189 | throw new ExperimentConfigurationException("Could not open configuration file.", e);
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190 | }
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191 |
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192 | if (inputSource != null) {
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193 | inputSource.setSystemId("file://" + file.getAbsolutePath());
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194 | try {
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195 | saxParser.parse(inputSource, this);
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196 | } catch (SAXException | IOException e) {
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197 | throw new ExperimentConfigurationException("Error parsing configuration.", e);
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198 | }
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199 | }
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200 | if( reader!=null ) {
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201 | try {
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202 | reader.close();
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203 | } catch (IOException e) {
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204 | throw new ExperimentConfigurationException("Error closing reader.", e);
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205 | }
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206 | }
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207 | }
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208 |
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209 | /**
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210 | * returns the name of the experiment
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211 | * @return name of the experiment
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212 | */
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213 | public String getExperimentName() {
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214 | return experimentName;
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215 | }
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216 |
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217 | /**
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218 | * returns the loaders for instances
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219 | * @return data loaders
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220 | */
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221 | public List<IVersionLoader> getLoaders() {
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222 | return loaders;
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223 | }
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224 |
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225 | /**
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226 | * returns the results path
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227 | * @return results path
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228 | */
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229 | public String getResultsPath() {
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230 | return resultsPath;
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231 | }
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232 |
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233 | /**
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234 | * returns the data set filters of the experiment
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235 | * @return data set filters of the experiment
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236 | */
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237 | public List<IVersionFilter> getVersionFilters() {
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238 | return versionFilters;
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239 | }
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240 |
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241 | /**
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242 | * returns the test set filters of the experiment
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243 | * @return test set filters of the experiment
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244 | */
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245 | public List<IVersionFilter> getTestVersionFilters() {
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246 | return testVersionFilters;
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247 | }
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248 |
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249 | /**
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250 | * returns the candidate training version filters of the experiment
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251 | * @return candidate training version filters of the experiment
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252 | */
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253 | public List<IVersionFilter> getTrainingVersionFilters() {
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254 | return trainingVersionFilters;
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255 | }
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256 |
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257 | /**
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258 | * returns the setwise processors applied before the setwise data selection
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259 | * @return setwise processors applied before the setwise data selection
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260 | */
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261 | public List<ISetWiseProcessingStrategy> getSetWisePreprocessors() {
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262 | return setwisepreprocessors;
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263 | }
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264 |
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265 | /**
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266 | * returns the setwise data selection strategies
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267 | * @return setwise data selection strategies
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268 | */
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269 | public List<ISetWiseDataselectionStrategy> getSetWiseSelectors() {
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270 | return setwiseselectors;
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271 | }
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272 |
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273 | /**
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274 | * returns the setwise processors applied after the setwise data selection
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275 | * @return setwise processors applied after the setwise data selection
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276 | */
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277 | public List<ISetWiseProcessingStrategy> getSetWisePostprocessors() {
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278 | return setwisepostprocessors;
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279 | }
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280 |
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281 | /**
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282 | * returns the setwise training algorithms
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283 | * @return setwise training algorithms
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284 | */
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285 | public List<ISetWiseTrainingStrategy> getSetWiseTrainers() {
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286 | return setwiseTrainers;
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287 | }
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288 |
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289 | /**
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290 | * returns the processors applied before the pointwise data selection
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291 | * @return processors applied before the pointwise data selection
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292 | */
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293 | public List<IProcessesingStrategy> getPreProcessors() {
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294 | return preprocessors;
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295 | }
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296 |
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297 | /**
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298 | * returns the pointwise data selection strategies
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299 | * @return pointwise data selection strategies
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300 | */
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301 | public List<IPointWiseDataselectionStrategy> getPointWiseSelectors() {
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302 | return pointwiseselectors;
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303 | }
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304 |
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305 | /**
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306 | * returns the processors applied after the pointwise data selection
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307 | * @return processors applied after the pointwise data selection
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308 | */
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309 | public List<IProcessesingStrategy> getPostProcessors() {
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310 | return postprocessors;
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311 | }
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312 |
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313 | /**
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314 | * returns the normal training algorithm
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315 | * @return normal training algorithms
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316 | */
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317 | public List<ITrainingStrategy> getTrainers() {
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318 | return trainers;
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319 | }
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320 |
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321 | /**
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322 | * returns the evaluation strategies
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323 | * @return evaluation strategies
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324 | */
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325 | public List<IEvaluationStrategy> getEvaluators() {
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326 | return evaluators;
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327 | }
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328 |
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329 | /**
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330 | * returns boolean, if classifier should be saved
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331 | * @return boolean
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332 | */
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333 | public boolean getSaveClassifier() {
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334 | return saveClassifier;
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335 | }
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336 |
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337 | /**
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338 | * returns the execution strategy
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339 | * @return String execution strategy
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340 | */
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341 | public String getExecutionStrategy() {
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342 | return executionStrategy;
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343 | }
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344 |
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345 | /* (non-Javadoc)
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346 | * @see org.xml.sax.helpers.DefaultHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
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347 | */
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348 | @Override
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349 | public void startElement(String uri, String localName, String qName,
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350 | Attributes attributes) throws SAXException {
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351 | try {
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352 | if( qName.equals("config") ) {
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353 | // ingore
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354 | }
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355 | else if( qName.equals("loader") ) {
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356 | final IVersionLoader loader = (IVersionLoader) Class.forName("de.ugoe.cs.cpdp.loader." + attributes.getValue("name")).newInstance();
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357 | loader.setLocation(attributes.getValue("datalocation"));
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358 | loaders.add(loader);
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359 |
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360 | // TODO location as relative
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361 | }
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362 | else if( qName.equals("resultspath") ) {
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363 | resultsPath = attributes.getValue("path");
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364 | }
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365 | else if( qName.equals("versionfilter") ) {
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366 | final IVersionFilter filter = (IVersionFilter) Class.forName("de.ugoe.cs.cpdp.versions." + attributes.getValue("name")).newInstance();
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367 | filter.setParameter(attributes.getValue("param"));
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368 | versionFilters.add(filter);
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369 | }
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370 | else if( qName.equals("testVersionfilter") ) {
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371 | final IVersionFilter filter = (IVersionFilter) Class.forName("de.ugoe.cs.cpdp.versions." + attributes.getValue("name")).newInstance();
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372 | filter.setParameter(attributes.getValue("param"));
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373 | testVersionFilters.add(filter);
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374 | }
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375 | else if( qName.equals("trainVersionfilter") ) {
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376 | final IVersionFilter filter = (IVersionFilter) Class.forName("de.ugoe.cs.cpdp.versions." + attributes.getValue("name")).newInstance();
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377 | filter.setParameter(attributes.getValue("param"));
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378 | trainingVersionFilters.add(filter);
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379 | }
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380 | else if( qName.equals("setwisepreprocessor") ) {
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381 | final ISetWiseProcessingStrategy processor = (ISetWiseProcessingStrategy) Class.forName("de.ugoe.cs.cpdp.dataprocessing." + attributes.getValue("name")).newInstance();
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382 | processor.setParameter(attributes.getValue("param"));
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383 | setwisepreprocessors.add(processor);
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384 | }
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385 | else if( qName.equals("setwiseselector") ) {
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386 | final ISetWiseDataselectionStrategy selection = (ISetWiseDataselectionStrategy) Class.forName("de.ugoe.cs.cpdp.dataselection." + attributes.getValue("name")).newInstance();
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387 | selection.setParameter(attributes.getValue("param"));
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388 | setwiseselectors.add(selection);
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389 | }
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390 | else if( qName.equals("setwisepostprocessor") ) {
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391 | final ISetWiseProcessingStrategy processor = (ISetWiseProcessingStrategy) Class.forName("de.ugoe.cs.cpdp.dataprocessing." + attributes.getValue("name")).newInstance();
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392 | processor.setParameter(attributes.getValue("param"));
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393 | setwisepostprocessors.add(processor);
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394 | }
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395 | else if( qName.equals("setwisetrainer") ) {
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396 | final ISetWiseTrainingStrategy trainer = (ISetWiseTrainingStrategy) Class.forName("de.ugoe.cs.cpdp.training." + attributes.getValue("name")).newInstance();
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397 | trainer.setParameter(attributes.getValue("param"));
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398 | setwiseTrainers.add(trainer);
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399 | }
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400 | else if( qName.equals("preprocessor") ) {
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401 | final IProcessesingStrategy processor = (IProcessesingStrategy) Class.forName("de.ugoe.cs.cpdp.dataprocessing." + attributes.getValue("name")).newInstance();
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402 | processor.setParameter( attributes.getValue("param"));
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403 | preprocessors.add(processor);
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404 | }
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405 | else if( qName.equals("pointwiseselector") ) {
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406 | final IPointWiseDataselectionStrategy selection = (IPointWiseDataselectionStrategy) Class.forName("de.ugoe.cs.cpdp.dataselection." + attributes.getValue("name")).newInstance();
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407 | selection.setParameter( attributes.getValue("param"));
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408 | pointwiseselectors.add(selection);
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409 | }
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410 | else if( qName.equals("postprocessor") ) {
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411 | final IProcessesingStrategy processor = (IProcessesingStrategy) Class.forName("de.ugoe.cs.cpdp.dataprocessing." + attributes.getValue("name")).newInstance();
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412 | processor.setParameter( attributes.getValue("param"));
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413 | postprocessors.add(processor);
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414 | }
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415 | else if( qName.equals("trainer") ) {
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416 | final ITrainingStrategy trainer = (ITrainingStrategy) Class.forName("de.ugoe.cs.cpdp.training." + attributes.getValue("name")).newInstance();
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417 | trainer.setParameter(attributes.getValue("param"));
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418 | trainers.add(trainer);
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419 | }
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420 | else if( qName.equals("eval") ) {
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421 | final IEvaluationStrategy evaluator = (IEvaluationStrategy) Class.forName("de.ugoe.cs.cpdp.eval." + attributes.getValue("name")).newInstance();
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422 | evaluators.add(evaluator);
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423 | }
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424 | else if( qName.equals("saveClassifier")) {
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425 | saveClassifier = true;
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426 | }
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427 | else if( qName.equals("executionStrategy")) {
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428 | executionStrategy = attributes.getValue("name");
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429 | }
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430 | else if( qName.equals("partialconfig") ) {
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431 | String path = attributes.getValue("path");
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432 | try {
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433 | boolean relative = true;
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434 | if( attributes.getValue("relative")!=null ) {
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435 | relative = Boolean.parseBoolean(attributes.getValue("relative"));
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436 | }
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437 |
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438 | if( relative ) {
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439 | path = configFile.getParentFile().getPath() + "/" + path;
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440 | }
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441 | addConfigurations(new ExperimentConfiguration(path));
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442 | } catch (ExperimentConfigurationException e) {
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443 | throw new SAXException("Could not load partial configuration: " + path, e);
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444 | }
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445 | } else {
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446 | Console.traceln(Level.WARNING, "element in config-file " + configFile.getName() + " ignored: " + qName);
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447 | }
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448 | }
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449 | catch (NoClassDefFoundError | ClassNotFoundException | IllegalAccessException | InstantiationException | ClassCastException e) {
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450 | throw new SAXException("Could not initialize class correctly", (Exception) e);
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451 | }
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452 | }
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453 |
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454 | /**
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455 | * Adds the information of another experiment configuration to this configuration. This mechanism allows the usage of partial configuration files. The name of the other configuration is lost.
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456 | * <br><br>
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457 | * If the current data path is the empty string (""), it is override by the datapath of the other configuration. Otherwise, the current data path is kept.
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458 | * @param other experiment whose information is added
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459 | * @throws ExperimentConfigurationException
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460 | */
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461 | private void addConfigurations(ExperimentConfiguration other) throws ExperimentConfigurationException {
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462 | if( "results".equals(resultsPath) ) {
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463 | resultsPath = other.resultsPath;
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464 | }
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465 | loaders.addAll(other.loaders);
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466 | versionFilters.addAll(other.versionFilters);
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467 | testVersionFilters.addAll(other.testVersionFilters);
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468 | trainingVersionFilters.addAll(other.trainingVersionFilters);
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469 | setwisepreprocessors.addAll(other.setwisepreprocessors);
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470 | setwiseselectors.addAll(other.setwiseselectors);
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471 | setwisepostprocessors.addAll(other.setwisepostprocessors);
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472 | setwiseTrainers.addAll(other.setwiseTrainers);
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473 | preprocessors.addAll(other.preprocessors);
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474 | pointwiseselectors.addAll(other.pointwiseselectors);
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475 | postprocessors.addAll(other.postprocessors);
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476 | trainers.addAll(other.trainers);
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477 | evaluators.addAll(other.evaluators);
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478 |
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479 | if(!executionStrategy.equals(other.executionStrategy)) {
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480 | throw new ExperimentConfigurationException("Executionstrategies must be the same, if config files should be added.");
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481 | }
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482 |
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483 | /* Only if saveClassifier is not set in the main config and
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484 | * the other configs saveClassifier is true, it must be set.
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485 | */
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486 | if(saveClassifier == null && other.saveClassifier == true) {
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487 | saveClassifier = other.saveClassifier;
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488 | }
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489 |
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490 | }
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491 |
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492 | /* (non-Javadoc)
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493 | * @see java.lang.Object#toString()
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494 | */
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495 | @Override
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496 | public String toString() {
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497 | final StringBuilder builder = new StringBuilder();
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498 | builder.append("Experiment name: " + experimentName + StringTools.ENDLINE);
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499 | builder.append("Loaders: " + loaders + StringTools.ENDLINE);
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500 | builder.append("Results path: " + resultsPath + StringTools.ENDLINE);
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501 | builder.append("Version filters: " + versionFilters.toString() + StringTools.ENDLINE);
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502 | builder.append("Test version filters: " + testVersionFilters.toString() + StringTools.ENDLINE);
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503 | builder.append("Training version filters: " + trainingVersionFilters.toString() + StringTools.ENDLINE);
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504 | builder.append("Setwise preprocessors: " + setwisepreprocessors.toString() + StringTools.ENDLINE);
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505 | builder.append("Setwise selectors: " + setwiseselectors.toString() + StringTools.ENDLINE);
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506 | builder.append("Setwise postprocessors: " + setwisepostprocessors.toString() + StringTools.ENDLINE);
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507 | builder.append("Setwise trainers: " + setwiseTrainers.toString() + StringTools.ENDLINE);
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508 | builder.append("Pointwise preprocessors: " + preprocessors.toString() + StringTools.ENDLINE);
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509 | builder.append("Pointwise selectors: " + pointwiseselectors.toString() + StringTools.ENDLINE);
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510 | builder.append("Pointwise postprocessors: " + postprocessors.toString() + StringTools.ENDLINE);
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511 | builder.append("Pointwise trainers: " + trainers.toString() + StringTools.ENDLINE);
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512 | builder.append("Evaluators: " + evaluators.toString() + StringTools.ENDLINE);
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513 | builder.append("Save Classifier?: " + saveClassifier + StringTools.ENDLINE);
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514 | builder.append("Execution Strategy: " + executionStrategy + StringTools.ENDLINE);
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515 |
|
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516 | return builder.toString();
|
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517 | }
|
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518 | }
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