ParametersFloat.java
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package is2.parserR2;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import is2.data.F2SF;
import is2.data.FV;
import is2.data.FVR;
import is2.data.Instances;
import is2.data.Parse;
import is2.util.DB;
final public class ParametersFloat extends Parameters {
public float[] parameters;
private float[] total;
public ParametersFloat(int size) {
parameters = new float[size];
total = new float[size];
for (int i = 0; i < parameters.length; i++) {
parameters[i] = 0F;
total[i] = 0F;
}
}
/**
* @param parameters2
*/
public ParametersFloat(float[] p) {
parameters = p;
}
@Override
public void average(double avVal) {
for (int j = 0; j < total.length; j++) {
parameters[j] = total[j] / ((float) avVal);
}
total = null;
}
public ParametersFloat average2(double avVal) {
float[] px = new float[this.parameters.length];
for (int j = 0; j < total.length; j++) {
px[j] = total[j] / ((float) avVal);
}
ParametersFloat pf = new ParametersFloat(px);
return pf;
}
public void update(FV act, FV pred, Instances isd, int instc, Parse dx, double upd, double e, float d, float f) {
e++;
float lam_dist = d - f;
float b = (float) e - lam_dist;
FV dist = act.getDistVector(pred);
dist.update(parameters, total, hildreth(dist, b), upd, false);
}
@Override
public void update(FV act, FV pred, Instances isd, int instc, Parse dx, double upd, double e) {
e++;
float lam_dist = getScore(act) - getScore(pred);
float b = (float) e - lam_dist;
FV dist = act.getDistVector(pred);
dist.update(parameters, total, hildreth(dist, b), upd, false);
}
public void update(FVR act, FVR pred, Instances isd, int instc, Parse dx, double upd, double e, float lam_dist) {
e++;
float b = (float) e - lam_dist;
FVR dist = act.getDistVector(pred);
dist.update(parameters, total, hildreth(dist, b), upd, false);
}
protected double hildreth(FV a, double b) {
double A = a.dotProduct(a);
if (A <= 0.0000000000000000001)
return 0.0;
return b / A;
}
protected double hildreth(FVR a, double b) {
double A = a.dotProduct(a);
if (A <= 0.0000000000000000001)
return 0.0;
return b / A;
}
public float getScore(FV fv) {
if (fv == null)
return 0.0F;
return fv.getScore(parameters, false);
}
public float getScore(FVR fv) { // xx
if (fv == null)
return 0.0F;
return fv.getScore(parameters, false);
}
@Override
final public void write(DataOutputStream dos) throws IOException {
dos.writeInt(parameters.length);
for (float d : parameters)
dos.writeFloat(d);
}
@Override
public void read(DataInputStream dis) throws IOException {
parameters = new float[dis.readInt()];
int notZero = 0;
for (int i = 0; i < parameters.length; i++) {
parameters[i] = dis.readFloat();
if (parameters[i] != 0.0F)
notZero++;
}
DB.println("read parameters " + parameters.length + " not zero " + notZero);
}
public int countNZ() {
int notZero = 0;
for (float parameter : parameters) {
if (parameter != 0.0F)
notZero++;
}
return notZero;
// DB.println("read parameters "+parameters.length+" not zero
// "+notZero);
}
/*
* (non-Javadoc)
*
* @see is2.sp09k99995.Parameters#getFV()
*/
@Override
public F2SF getFV() {
return new F2SF(parameters);
}
/*
* (non-Javadoc)
*
* @see is2.sp09k99999.Parameters#size()
*/
@Override
public int size() {
return parameters.length;
}
}