use of smile.data.NominalAttribute in project smile by haifengl.
the class LDATest method testUSPS.
/**
* Test of learn method, of class LDA.
*/
@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()]);
LDA lda = new LDA(x, y);
int error = 0;
for (int i = 0; i < testx.length; i++) {
if (lda.predict(testx[i]) != testy[i]) {
error++;
}
}
System.out.format("USPS error rate = %.2f%%%n", 100.0 * error / testx.length);
assertEquals(256, error);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.data.NominalAttribute in project smile by haifengl.
the class LogisticRegressionTest method testUSPS.
/**
* Test of learn method, of class LogisticRegression.
*/
@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()]);
LogisticRegression logit = new LogisticRegression(x, y, 0.3, 1E-3, 1000);
int error = 0;
for (int i = 0; i < testx.length; i++) {
if (logit.predict(testx[i]) != testy[i]) {
error++;
}
}
System.out.format("USPS error rate = %.2f%%%n", 100.0 * error / testx.length);
assertEquals(188, error);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.data.NominalAttribute in project smile by haifengl.
the class RBFNetworkTest method testUSPS.
/**
* Test of learn method, of class RBFNetwork.
*/
@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()]);
double[][] centers = new double[200][];
RadialBasisFunction basis = SmileUtils.learnGaussianRadialBasis(x, centers);
RBFNetwork<double[]> rbf = new RBFNetwork<>(x, y, new EuclideanDistance(), new GaussianRadialBasis(8.0), centers);
int error = 0;
for (int i = 0; i < testx.length; i++) {
if (rbf.predict(testx[i]) != testy[i]) {
error++;
}
}
System.out.format("USPS error rate = %.2f%%%n", 100.0 * error / testx.length);
assertTrue(error <= 150);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.data.NominalAttribute in project smile by haifengl.
the class RDATest method testUSPS.
/**
* Test of learn method, of class RDA.
*/
@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()]);
RDA rda = new RDA(x, y, 0.7);
int error = 0;
for (int i = 0; i < testx.length; i++) {
if (rda.predict(testx[i]) != testy[i]) {
error++;
}
}
System.out.format("USPS error rate = %.2f%%%n", 100.0 * error / testx.length);
assertEquals(235, error);
} catch (Exception ex) {
System.err.println(ex);
}
}
use of smile.data.NominalAttribute in project smile by haifengl.
the class RandomForestTest method testUSPS.
/**
* Test of learn method, of class RandomForest.
*/
@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()]);
RandomForest forest = new RandomForest(x, y, 200);
int error = 0;
for (int i = 0; i < testx.length; i++) {
if (forest.predict(testx[i]) != testy[i]) {
error++;
}
}
System.out.println(error);
System.out.format("USPS OOB error rate = %.2f%%%n", 100.0 * forest.error());
System.out.format("USPS error rate = %.2f%%%n", 100.0 * error / testx.length);
assertTrue(error <= 140);
} catch (Exception ex) {
System.err.println(ex);
}
}
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