@Test
public void testBinaryVectorsChangeGradually() {
FlagConfig flagConfig =
FlagConfig.getFlagConfig(new String[] {"-vectortype", "binary", "-dimension", "2048"});
NumberRepresentation numberRepresentation = new NumberRepresentation(flagConfig);
VectorStoreRAM vsr = numberRepresentation.getNumberVectors(0, 4);
assertEquals(0.75, vsr.getVector(0).measureOverlap(vsr.getVector(1)), TOL);
}
@Test
public void testAbsoluteValuesOfEndpointsDontMatter() {
FlagConfig flagConfig =
FlagConfig.getFlagConfig(new String[] {"-vectortype", "binary", "-dimension", "2048"});
NumberRepresentation numberRepresentation = new NumberRepresentation(flagConfig);
VectorStoreRAM vsr1 = numberRepresentation.getNumberVectors(0, 4);
VectorStoreRAM vsr2 = numberRepresentation.getNumberVectors(8, 12);
assertEquals(1.0, vsr1.getVector(0).measureOverlap(vsr2.getVector(8)), TOL);
assertEquals(1.0, vsr1.getVector(2).measureOverlap(vsr2.getVector(10)), TOL);
}
@Test
public void testCreateAndGetNumberVectors() {
FlagConfig flagConfig =
FlagConfig.getFlagConfig(new String[] {"-vectortype", "real", "-dimension", "200"});
NumberRepresentation numberRepresentation = new NumberRepresentation(flagConfig);
VectorStoreRAM vsr2 = numberRepresentation.getNumberVectors(0, 2);
assertEquals(5, vsr2.getNumVectors());
VectorStoreRAM vsr4 = numberRepresentation.getNumberVectors(0, 4);
assertEquals(7, vsr4.getNumVectors());
// The beginning and end vectors should be the same in all cases.
assertEquals(1.0, vsr2.getVector(0).measureOverlap(vsr4.getVector(0)), TOL);
assertEquals(1.0, vsr2.getVector(2).measureOverlap(vsr4.getVector(4)), TOL);
}
@Test
public void testVectorsNearerToBeginningOrEnd() {
FlagConfig flagConfig =
FlagConfig.getFlagConfig(new String[] {"-vectortype", "binary", "-dimension", "2048"});
NumberRepresentation numberRepresentation = new NumberRepresentation(flagConfig);
VectorStoreRAM vsr = numberRepresentation.getNumberVectors(0, 4);
assertTrue(
vsr.getVector(0).measureOverlap(vsr.getVector(1))
> vsr.getVector(4).measureOverlap(vsr.getVector(1)));
assertTrue(
vsr.getVector(4).measureOverlap(vsr.getVector(3))
> vsr.getVector(3).measureOverlap(vsr.getVector(0)));
/**
* This "half-way" equality isn't exact, demonstrating that I don't exactly understand the
* process. -DW.
*/
assertEquals(
vsr.getVector(4).measureOverlap(vsr.getVector(2)),
vsr.getVector(2).measureOverlap(vsr.getVector(0)),
TOL);
}