本文整理汇总了Java中edu.jhu.prim.util.math.FastMath.exp方法的典型用法代码示例。如果您正苦于以下问题：Java FastMath.exp方法的具体用法？Java FastMath.exp怎么用？Java FastMath.exp使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类edu.jhu.prim.util.math.FastMath的用法示例。
在下文中一共展示了FastMath.exp方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getExp
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
public static double[] getExp(double[] logPhi) {
double[] phi = new double[logPhi.length];
for (int i=0; i<phi.length; i++) {
phi[i] = FastMath.exp(logPhi[i]);
}
return phi;
}
示例2: getExp
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
public static float[] getExp(float[] logPhi) {
float[] phi = new float[logPhi.length];
for (int i=0; i<phi.length; i++) {
phi[i] = FastMath.exp(logPhi[i]);
}
return phi;
}
示例3: exp
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
public static void exp(double[] phi) {
for (int i=0; i<phi.length; i++) {
phi[i] = FastMath.exp(phi[i]);
}
}
示例4: exp
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
public static void exp(float[] phi) {
for (int i=0; i<phi.length; i++) {
phi[i] = FastMath.exp(phi[i]);
}
}
示例5: toReal
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
@Override
public double toReal(double nonReal) {
return FastMath.exp(nonReal);
}
示例6: exp
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
@Override
public double exp(double x) {
return FastMath.exp(x);
}
示例7: fromLogProb
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
@Override
public double fromLogProb(double logProb) {
return FastMath.exp(logProb);
}
示例8: toReal
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
/** Converts a compacted number to its real value. */
@Override
public double toReal(double x) {
double unsignedReal = FastMath.exp(natlog(x));
return (sign(x) == POSITIVE) ? unsignedReal : -unsignedReal;
}
示例9: helpTestInsideFirstOrderExpectSingleRoot
import edu.jhu.prim.util.math.FastMath; //导入方法依赖的package包/类
private void helpTestInsideFirstOrderExpectSingleRoot(Algebra s) {
double[] root = new double[] {1, 2, 3};
double[][] child = new double[][]{ {0, 4, 5}, {6, 0, 7}, {8, 9, 0} };
DoubleArrays.log(root);
DoubleArrays.log(child);
Pair<O1DpHypergraph, Scores> pair = HyperDepParser.insideSingleRootEntropyFoe(root, child, s);
O1DpHypergraph graph = pair.get1();
Scores scores = pair.get2();
// Fill with dummy outside scores.
scores.alpha = new double[scores.beta.length];
DepIoChart chart = HyperDepParser.getDepIoChart(graph, scores);
// Check inside scores. (These LogInsideScore checks are mostly unnecessary.)
assertEquals(7, s.toReal(chart.getLogInsideScore(1, 2)), 1e-13);
assertEquals(9, s.toReal(chart.getLogInsideScore(2, 1)), 1e-13);
assertEquals(45+20, s.toReal(chart.getLogInsideScore(0, 2)), 1e-10);
assertEquals(45+28+20, s.toReal(chart.getLogInsideScore(-1, 0)), 1e-10);
assertEquals(84, s.toReal(chart.getLogInsideScore(-1, 1)), 1e-13);
assertEquals(8*9+8*4, s.toReal(chart.getLogInsideScore(2, 0)), 1e-10);
assertEquals(162+216+96, s.toReal(chart.getLogInsideScore(-1, 2)), 1e-3);
// Check partition function.
int rt = graph.getRoot().getId();
double Z = s.toReal(scores.beta[rt]);
assertEquals(45+28+20+84+162+216+96, Z, 1e-10);
// Check expected log of derivations.
double[] trees = new double[] {45, 28, 20, 84, 162, 216, 96};
double expectedRbar = 0;
for (int t=0; t<trees.length; t++) {
expectedRbar += trees[t] * FastMath.log(trees[t]);
}
double rBar = scores.betaFoe[rt];
assertEquals(expectedRbar, s.toReal(rBar), 1e-10);
double logZ = FastMath.log(Z);
double entropy = logZ - FastMath.exp(FastMath.log(s.toReal(rBar)) - logZ);
assertEquals(1.685678668864755, entropy, 1e-10);
}