use of smile.validation.AdjustedRandIndex in project smile by haifengl.
the class GrowingNeuralGasTest method testUSPS.
/**
* Test of learn method, of class GrowingNeuralGas.
*/
@Test
public void testUSPS() {
System.out.println("USPS");
DelimitedTextParser parser = new DelimitedTextParser();
parser.setResponseIndex(new NominalAttribute("class"), 0);
try {
AttributeDataset train = parser.parse("USPS Train", smile.data.parser.IOUtils.getTestDataFile("usps/zip.train"));
AttributeDataset test = parser.parse("USPS Test", smile.data.parser.IOUtils.getTestDataFile("usps/zip.test"));
double[][] x = train.toArray(new double[train.size()][]);
int[] y = train.toArray(new int[train.size()]);
double[][] testx = test.toArray(new double[test.size()][]);
int[] testy = test.toArray(new int[test.size()]);
GrowingNeuralGas gng = new GrowingNeuralGas(x[0].length);
for (int i = 0; i < 10; i++) {
int[] index = Math.permutate(x.length);
for (int j = 0; j < x.length; j++) {
gng.update(x[index[j]]);
}
}
gng.partition(10);
AdjustedRandIndex ari = new AdjustedRandIndex();
RandIndex rand = new RandIndex();
int[] p = new int[x.length];
for (int i = 0; i < x.length; i++) {
p[i] = gng.predict(x[i]);
}
double r = rand.measure(y, p);
double r2 = ari.measure(y, p);
System.out.format("Training rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.85);
assertTrue(r2 > 0.40);
p = new int[testx.length];
for (int i = 0; i < testx.length; i++) {
p[i] = gng.predict(testx[i]);
}
r = rand.measure(testy, p);
r2 = ari.measure(testy, p);
System.out.format("Testing rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.85);
assertTrue(r2 > 0.40);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.validation.AdjustedRandIndex in project smile by haifengl.
the class NeuralMapTest method testUSPS.
/**
* Test of learn method, of class NeuralMap.
*/
@Test
public void testUSPS() {
System.out.println("USPS");
DelimitedTextParser parser = new DelimitedTextParser();
parser.setResponseIndex(new NominalAttribute("class"), 0);
try {
AttributeDataset train = parser.parse("USPS Train", smile.data.parser.IOUtils.getTestDataFile("usps/zip.train"));
AttributeDataset test = parser.parse("USPS Test", smile.data.parser.IOUtils.getTestDataFile("usps/zip.test"));
double[][] x = train.toArray(new double[train.size()][]);
int[] y = train.toArray(new int[train.size()]);
double[][] testx = test.toArray(new double[test.size()][]);
int[] testy = test.toArray(new int[test.size()]);
NeuralMap cortex = new NeuralMap(x[0].length, 8.0, 0.05, 0.0006, 5, 3);
for (int i = 0; i < 5; i++) {
for (double[] xi : x) {
cortex.update(xi);
}
}
cortex.purge(16);
cortex.partition(10);
AdjustedRandIndex ari = new AdjustedRandIndex();
RandIndex rand = new RandIndex();
int[] p = new int[x.length];
for (int i = 0; i < x.length; i++) {
p[i] = cortex.predict(x[i]);
}
double r = rand.measure(y, p);
double r2 = ari.measure(y, p);
System.out.format("Training rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
//assertTrue(r > 0.65);
//assertTrue(r2 > 0.18);
p = new int[testx.length];
for (int i = 0; i < testx.length; i++) {
p[i] = cortex.predict(testx[i]);
}
r = rand.measure(testy, p);
r2 = ari.measure(testy, p);
System.out.format("Testing rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
//assertTrue(r > 0.65);
//assertTrue(r2 > 0.18);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.validation.AdjustedRandIndex in project smile by haifengl.
the class SOMTest method testUSPS.
/**
* Test of learn method, of class SOM.
*/
@Test
public void testUSPS() {
System.out.println("USPS");
DelimitedTextParser parser = new DelimitedTextParser();
parser.setResponseIndex(new NominalAttribute("class"), 0);
try {
AttributeDataset train = parser.parse("USPS Train", smile.data.parser.IOUtils.getTestDataFile("usps/zip.train"));
AttributeDataset test = parser.parse("USPS Test", smile.data.parser.IOUtils.getTestDataFile("usps/zip.test"));
double[][] x = train.toArray(new double[train.size()][]);
int[] y = train.toArray(new int[train.size()]);
double[][] testx = test.toArray(new double[test.size()][]);
int[] testy = test.toArray(new int[test.size()]);
SOM som = new SOM(x, 10, 10);
int[] label = som.partition(10);
AdjustedRandIndex ari = new AdjustedRandIndex();
RandIndex rand = new RandIndex();
double r = rand.measure(y, label);
double r2 = ari.measure(y, label);
System.out.format("Training rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.88);
assertTrue(r2 > 0.45);
int[] p = new int[testx.length];
for (int i = 0; i < testx.length; i++) {
p[i] = som.predict(testx[i]);
}
r = rand.measure(testy, p);
r2 = ari.measure(testy, p);
System.out.format("Testing rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.88);
assertTrue(r2 > 0.45);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.validation.AdjustedRandIndex in project smile by haifengl.
the class SIBTest method testParseNG20.
/**
* Test of parse method, of class SIB.
*/
@Test
public void testParseNG20() throws Exception {
System.out.println("NG20");
LibsvmParser parser = new LibsvmParser();
try {
SparseDataset train = parser.parse("NG20 Train", smile.data.parser.IOUtils.getTestDataFile("libsvm/news20.dat"));
SparseDataset test = parser.parse("NG20 Test", smile.data.parser.IOUtils.getTestDataFile("libsvm/news20.t.dat"));
int[] y = train.toArray(new int[train.size()]);
int[] testy = test.toArray(new int[test.size()]);
SIB sib = new SIB(train, 20, 100, 8);
System.out.println(sib);
AdjustedRandIndex ari = new AdjustedRandIndex();
RandIndex rand = new RandIndex();
double r = rand.measure(y, sib.getClusterLabel());
double r2 = ari.measure(y, sib.getClusterLabel());
System.out.format("Training rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.85);
assertTrue(r2 > 0.2);
int[] p = new int[test.size()];
for (int i = 0; i < test.size(); i++) {
p[i] = sib.predict(test.get(i).x);
}
r = rand.measure(testy, p);
r2 = ari.measure(testy, p);
System.out.format("Testing rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.85);
assertTrue(r2 > 0.2);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.validation.AdjustedRandIndex in project smile by haifengl.
the class SpectralClusteringTest method testUSPSNystrom.
/**
* Test of learn method, of class SpectralClustering.
*/
@Test
public void testUSPSNystrom() {
System.out.println("USPS Nystrom approximation");
DelimitedTextParser parser = new DelimitedTextParser();
parser.setResponseIndex(new NominalAttribute("class"), 0);
try {
AttributeDataset train = parser.parse("USPS Train", smile.data.parser.IOUtils.getTestDataFile("usps/zip.train"));
double[][] x = train.toArray(new double[train.size()][]);
int[] y = train.toArray(new int[train.size()]);
SpectralClustering spectral = new SpectralClustering(x, 10, 100, 8.0);
AdjustedRandIndex ari = new AdjustedRandIndex();
RandIndex rand = new RandIndex();
double r = rand.measure(y, spectral.getClusterLabel());
double r2 = ari.measure(y, spectral.getClusterLabel());
System.out.format("Training rand index = %.2f%%\tadjusted rand index = %.2f%%%n", 100.0 * r, 100.0 * r2);
assertTrue(r > 0.8);
assertTrue(r2 > 0.35);
} catch (Exception ex) {
System.err.println(ex);
}
}
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