public static void main(String[] args) throws ClassNotFoundException, IOException {
int nbPCA = 250;
// String sourcePath = "/Vrac/3000693/RI_Image/bows_" + nbPCA + ".ser";
String sourcePath = "/Users/remicadene/Dropbox/_Docs/UPMC/RI/bows_" + nbPCA + ".ser";
int dimpsi = 0;
Set<String> classes;
// Modèle MultiClass
// --------------------------------------------------------------------------------
// Hyperparamètres
double eps = 1e-2;
double lambda = 1e-6;
int maxIter = 100;
// Définition du modèle
DataSet<double[], String> dataSet = VisualIndexes.load(sourcePath);
classes = dataSet.outputs();
double min = Double.MAX_VALUE;
double max = -Double.MAX_VALUE;
int n = classes.size();
double[][] distances = new double[n][n];
double[][] new_distances = new double[n][n];
ILexicalDatabase db = new NictWordNet();
RelatednessCalculator calculator = new WuPalmer(db);
HashMap<String, Integer> hm_classes = new HashMap<String, Integer>();
int id = 0;
for (String classe : classes) {
hm_classes.put(classe, id);
id++;
}
for (String word1 : classes) {
int i = hm_classes.get(word1);
for (String word2 : classes) {
int j = hm_classes.get(word2);
// this.distances[i][j] = calculator.calcRelatednessOfWords(word1, word2);
if (i == j) {
distances[i][j] = 0;
} else {
distances[i][j] = 1 - calculator.calcRelatednessOfWords(word1, word2);
if (distances[i][j] < min) {
min = distances[i][j];
}
if (distances[i][j] > max) {
max = distances[i][j];
}
}
}
}
// [a; b] -> [0.1 ; 2]
// (1.9 * (x - a) / (b - a)) + .1
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (i != j) {
new_distances[i][j] = (distances[i][j] - min) * (2 - 0.1) / (max - min) + 0.1;
}
}
}
System.out.println("--------------");
for (int i = 0; i < classes.size(); i++) {
for (int j = i + 1; j < classes.size(); j++) {
System.out.println("[" + i + "," + j + "]");
System.out.println("avant: " + distances[i][j]);
System.out.println("apres: " + new_distances[i][j]);
}
}
System.out.println(max);
System.out.println(min);
double a =
0.1 + (2 - 0.1) * (0.6 - 0.0714285714285714) / (0.15384615384615385 - 0.0714285714285714);
}
public MulticlassClassif(String sourcePath) throws ClassNotFoundException, IOException {
this(VisualIndexes.load(sourcePath));
}