/** Test of rightShiftBuffer method, of class FidelDecoder. */
public void testRightShiftBuffer() {
System.out.println("rightShiftBuffer");
int[] buf = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0};
int shift = 2;
int at = 6;
FidelDecoder.rightShiftBuffer(buf, shift, at);
Assert.assertArrayEquals(new int[] {1, 2, 3, 4, 5, 6, 7, 6, 7, 8, 9}, buf);
final int[] buf2 = new int[] {7, 9, 0};
FidelDecoder.rightShiftBuffer(buf2, 1, 1);
Assert.assertArrayEquals(new int[] {7, 9, 9}, buf2);
}
/** Test of recalcDist method, of class FidelDecoder. */
@Test
public void testRecalcDist() {
System.out.println("recalcDist");
int[] dist = {0, 0, -1, 1, 0};
int length = 2;
int shift = 2;
int[] expResult = {0, 0, -1, -2, -2, 3, 2};
int[] result = FidelDecoder.recalcDist(dist, length, shift);
assertArrayEquals(expResult, result);
assertArrayEquals(new int[] {-2, 1, 1}, FidelDecoder.recalcDist(new int[] {0, 0}, 1, 2));
}
/** Test of tryPutTranslation method, of class FidelDecoder. */
@Test
public void testTryPutTranslation_7args() {
System.out.println("tryPutTranslation");
PhraseTranslation pt =
new PhraseTranslation(
new int[] {6},
new double[] {
log10(0.474756), log10(0.427108), log10(0.128955), log10(0.144797), log10(2.718)
});
double[] weights = {1, 1, 1, 1, 1, 1, 1, 1};
int[] buf = new int[2];
int pos = 0;
IntegerLanguageModelImpl languageModel = lm;
int lmN = 2;
int dist = 0;
double expResult =
log10(0.474756)
+ log10(0.427108)
+ log10(0.128955)
+ log10(0.144797)
+ log10(2.718)
- 3.320179;
double result =
FidelDecoder.tryPutTranslation(pt, weights, buf, pos, languageModel, lmN, dist)[0];
assertEquals(expResult, result, 0.001);
}
/** Test of lmScore method, of class FidelDecoder. */
public void testLmScoreDirect() {
System.out.println("lmScore");
int[] buf = {6, 9, 12};
IntegerLanguageModelImpl languageModel = lm;
int lmN = 2;
assertEquals(
-2.74139, FidelDecoder.lmScore(buf, 2, languageModel, lmN, Double.NEGATIVE_INFINITY), 0.01);
}
@Test
public void testDeltaDist() {
System.out.println("deltaDist");
int[] dist = {0, 0, -1, 1, 0};
int length = 2;
int shift = 2;
double[] weights = {1, 1, 1, 1, 1, 1, 1, 1};
double result = FidelDecoder.deltaDist(dist, length, shift, weights);
assertEquals(-8, result, 0.0);
}
/** Test of leftShiftBuffer method, of class FidelDecoder. */
@Test
public void testLeftShiftBuffer() {
System.out.println("leftShiftBuffer");
int[] buf = {1, 2, 3, 4, 5, 6, 7, 6, 7, 8, 9};
int shift = 2;
int at = 6;
FidelDecoder.leftShiftBuffer(buf, shift, at);
int[] expResult = {1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 9};
assertArrayEquals(expResult, buf);
}
/** Test of calcPartialScore method, of class FidelDecoder. */
@Test
public void testCalcPartialScore() {
System.out.println("calcPartialScore");
int[] src = {0, 1, 2, 3, 4, 5};
Object2ObjectMap<Phrase, Collection<PhraseTranslation>> phraseTable = pt;
double[] weights = {1, 1, 1, 1, 1, 1, 1, 1};
IntegerLanguageModelImpl languageModel = lm;
int lmN = 2;
double[] expResult = {-5.3066, -7.6801, -6.2073, -3.5574, -5.0824, -7.3064};
double[] result = FidelDecoder.calcPartialScore(src, phraseTable, weights, languageModel, lmN);
assertArrayEquals(expResult, result, 0.01);
}
/** Test of decode method, of class FidelDecoder. */
public void testDecode() {
System.out.println("decode");
int[] src = {0, 1, 2, 3, 4, 5};
Object2ObjectMap<Phrase, Collection<PhraseTranslation>> phraseTable = pt;
IntegerLanguageModelImpl languageModel = lm;
int lmN = 2;
double[] weights = new double[] {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0};
int distiortionLimit = 3;
int nBest = 1;
Solution[] result =
FidelDecoder.decode(
src, phraseTable, languageModel, lmN, weights, distiortionLimit, nBest, 1000, false);
final int[] expSoln = new int[] {7, 9, 16, 11};
System.out.println("My Guess:" + Arrays.toString(expSoln));
System.out.println("Fidel's soln: " + Arrays.toString(result[0].soln()));
// assertArrayEquals(expSoln, result[0].soln);
}
public void testFeatures() {
System.out.println("decode");
int[] src = {0, 1, 2, 3, 4, 5};
Object2ObjectMap<Phrase, Collection<PhraseTranslation>> phraseTable = pt;
IntegerLanguageModelImpl languageModel = lm;
int lmN = 2;
double[] weights = new double[] {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0};
int distiortionLimit = 3;
int nBest = 1;
Solution[] result =
FidelDecoder.decode(
src, phraseTable, languageModel, lmN, weights, distiortionLimit, nBest, 1000, false);
for (int j = 0; j < result.length; j++) {
double scoreFromFeats = 0.0;
for (int i = 0; i < weights.length; i++) {
scoreFromFeats += result[j].features()[i];
}
assertEquals(result[j].score(), scoreFromFeats, 0.0001);
}
}
public void testDecodeSimple() {
System.out.println("decodeSimple");
int[] src = {0, 1, 2};
Object2ObjectMap<Phrase, Collection<PhraseTranslation>> phraseTable =
new Object2ObjectOpenHashMap<Phrase, Collection<PhraseTranslation>>();
phraseTable.put(
new Phrase(new int[] {0}),
Arrays.asList(new PhraseTranslation(new int[] {3}, new double[] {-1})));
phraseTable.put(
new Phrase(new int[] {1}),
Arrays.asList(new PhraseTranslation(new int[] {4}, new double[] {-1})));
phraseTable.put(
new Phrase(new int[] {2}),
Arrays.asList(new PhraseTranslation(new int[] {5}, new double[] {-1})));
final IntegerLanguageModelImpl languageModel = new IntegerLanguageModelImpl();
languageModel.put(new Phrase(new int[] {3}), new double[] {-1, -10});
languageModel.put(new Phrase(new int[] {4}), new double[] {-1, -10});
languageModel.put(new Phrase(new int[] {5}), new double[] {-1, -10});
languageModel.put(
new Phrase(new int[] {3, 4}),
new double[] {
-1,
});
languageModel.put(
new Phrase(new int[] {4, 5}),
new double[] {
-1,
});
int lmN = 2;
double[] weights = new double[] {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0};
int distiortionLimit = 3;
int nBest = 1;
Solution[] result =
FidelDecoder.decode(
src, phraseTable, languageModel, lmN, weights, distiortionLimit, nBest, 1000, false);
assertArrayEquals(new int[] {3, 4, 5}, result[0].soln());
assertEquals(-6, result[0].score(), 0.01);
}
