public void testRecenter () { Variable var = new Variable (4); double[] vals = new double[]{ 2.0, 4.0, 6.0, 8.0 }; LogTableFactor ltbl1 = LogTableFactor.makeFromValues (var, vals); ltbl1.recenter (); double[] expected = new double[] { Math.log (0.25), Math.log(0.5), Math.log (0.75), 0 }; LogTableFactor ans = LogTableFactor.makeFromLogValues (var, expected); assertTrue ("Error: expected "+ans.dumpToString ()+"but was "+ltbl1.dumpToString (), ans.almostEquals (ltbl1)); }
public void testRecenter () { Variable var = new Variable (4); double[] vals = new double[]{ 2.0, 4.0, 6.0, 8.0 }; LogTableFactor ltbl1 = LogTableFactor.makeFromValues (var, vals); ltbl1.recenter (); double[] expected = new double[] { Math.log (0.25), Math.log(0.5), Math.log (0.75), 0 }; LogTableFactor ans = LogTableFactor.makeFromLogValues (var, expected); assertTrue ("Error: expected "+ans.dumpToString ()+"but was "+ltbl1.dumpToString (), ans.almostEquals (ltbl1)); }
public void testRecenter2 () { Variable var = new Variable (4); double[] vals = new double[]{ 0, 1.4, 1.4, 0 }; LogTableFactor ltbl1 = LogTableFactor.makeFromLogValues (var, vals); ltbl1.recenter (); double[] expected = new double[]{ -1.4, 0, 0, -1.4 }; LogTableFactor ans = LogTableFactor.makeFromLogValues (var, expected); assertTrue (!ltbl1.isNaN ()); assertTrue ("Error: expected "+ans.dumpToString ()+"but was "+ltbl1.dumpToString (), ans.almostEquals (ltbl1)); }
public void testRecenter2 () { Variable var = new Variable (4); double[] vals = new double[]{ 0, 1.4, 1.4, 0 }; LogTableFactor ltbl1 = LogTableFactor.makeFromLogValues (var, vals); ltbl1.recenter (); double[] expected = new double[]{ -1.4, 0, 0, -1.4 }; LogTableFactor ans = LogTableFactor.makeFromLogValues (var, expected); assertTrue (!ltbl1.isNaN ()); assertTrue ("Error: expected "+ans.dumpToString ()+"but was "+ltbl1.dumpToString (), ans.almostEquals (ltbl1)); }
public void testTblTblPlusEquals () { Variable var = new Variable (4); double[] vals = new double[]{ 2.0, 4.0, 6.0, 8.0 }; double[] vals2 = new double [] { 0.25, 0.5, 0.75, 1.0 }; double[] vals3 = new double [] { 2.25, 4.5, 6.75, 9.0, }; LogTableFactor ans = LogTableFactor.makeFromValues (var, vals3); LogTableFactor ptl1 = LogTableFactor.makeFromValues (var, vals); LogTableFactor ptl2 = LogTableFactor.makeFromValues (var, vals2); ptl1.plusEquals (ptl2); assertTrue (ans.almostEquals (ptl1)); }
public void testExtractMaxLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; LogTableFactor ptl = LogTableFactor.makeFromValues (vars, new double[]{1, 2, 3, 4}); LogTableFactor ptl2 = (LogTableFactor) ptl.extractMax (vars[1]); assertEquals ("FAILURE: Potential has too many vars.\n "+ptl2, 1, ptl2.varSet ().size ()); assertTrue ("FAILURE: Potential does not contain "+vars[1]+":\n "+ptl2, ptl2.varSet ().contains (vars[1])); double[] expected = new double[] { 3, 4 }; assertTrue ("FAILURE: Potential has incorrect values. Expected "+ArrayUtils.toString (expected)+"was "+ptl2, Maths.almostEquals (ptl2.toValueArray (), expected, 1e-5)); }
public void testExtractMaxLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; LogTableFactor ptl = LogTableFactor.makeFromValues (vars, new double[]{1, 2, 3, 4}); LogTableFactor ptl2 = (LogTableFactor) ptl.extractMax (vars[1]); assertEquals ("FAILURE: Potential has too many vars.\n "+ptl2, 1, ptl2.varSet ().size ()); assertTrue ("FAILURE: Potential does not contain "+vars[1]+":\n "+ptl2, ptl2.varSet ().contains (vars[1])); double[] expected = new double[] { 3, 4 }; assertTrue ("FAILURE: Potential has incorrect values. Expected "+ArrayUtils.toString (expected)+"was "+ptl2, Maths.almostEquals (ptl2.toValueArray (), expected, 1e-5)); }
public void testTimesTableFactor () { Variable var = new Variable (4); double[] vals = new double[]{ 2.0, 4.0, 6.0, 8.0 }; double[] vals2 = new double [] { 0.5, 0.5, 0.5, 0.5 }; double[] vals3 = new double [] { 1, 2, 3, 4, }; TableFactor ans = new TableFactor (var, vals3); TableFactor ptl1 = new TableFactor (var, vals); LogTableFactor lptl2 = LogTableFactor.makeFromValues (var, vals2); ptl1.multiplyBy (lptl2); assertTrue (ans.almostEquals (ptl1)); }
public void testTimesTableFactor () { Variable var = new Variable (4); double[] vals = new double[]{ 2.0, 4.0, 6.0, 8.0 }; double[] vals2 = new double [] { 0.5, 0.5, 0.5, 0.5 }; double[] vals3 = new double [] { 1, 2, 3, 4, }; TableFactor ans = new TableFactor (var, vals3); TableFactor ptl1 = new TableFactor (var, vals); LogTableFactor lptl2 = LogTableFactor.makeFromValues (var, vals2); ptl1.multiplyBy (lptl2); assertTrue (ans.almostEquals (ptl1)); }
public void testTblTblPlusEquals () { Variable var = new Variable (4); double[] vals = new double[]{ 2.0, 4.0, 6.0, 8.0 }; double[] vals2 = new double [] { 0.25, 0.5, 0.75, 1.0 }; double[] vals3 = new double [] { 2.25, 4.5, 6.75, 9.0, }; LogTableFactor ans = LogTableFactor.makeFromValues (var, vals3); LogTableFactor ptl1 = LogTableFactor.makeFromValues (var, vals); LogTableFactor ptl2 = LogTableFactor.makeFromValues (var, vals2); ptl1.plusEquals (ptl2); assertTrue (ans.almostEquals (ptl1)); }
private void comparePotentialValues (LogTableFactor ptl, LogTableFactor ptl2) { AssignmentIterator it1 = ptl.assignmentIterator (); AssignmentIterator it2 = ptl2.assignmentIterator (); while (it1.hasNext ()) { assertTrue (ptl.value (it1) == ptl.value (it2)); it1.advance (); it2.advance (); } }
public void testPlusEquals () { Variable var = new Variable (4); // log 0, log 1, log 2, log 3 double[] vals = new double[] { Double.NEGATIVE_INFINITY, 0, 0.6931471805599453, 1.0986122886681098 }; LogTableFactor factor = LogTableFactor.makeFromLogValues (var, vals); factor.plusEquals (0.1); // log 0.1, log 1.1, log 2.1, log 3.1 double[] expected = new double[] { -2.3025850929940455, 0.09531017980432493, 0.7419373447293773, 1.1314021114911006 }; LogTableFactor ans = LogTableFactor.makeFromLogValues (var, expected); assertTrue ("Error: expected "+ans.dumpToString ()+" but was "+factor.dumpToString (), factor.almostEquals (ans)); }
private void comparePotentialValues (LogTableFactor ptl, LogTableFactor ptl2) { AssignmentIterator it1 = ptl.assignmentIterator (); AssignmentIterator it2 = ptl2.assignmentIterator (); while (it1.hasNext ()) { assertTrue (ptl.value (it1) == ptl.value (it2)); it1.advance (); it2.advance (); } }
public void testPlusEquals () { Variable var = new Variable (4); // log 0, log 1, log 2, log 3 double[] vals = new double[] { Double.NEGATIVE_INFINITY, 0, 0.6931471805599453, 1.0986122886681098 }; LogTableFactor factor = LogTableFactor.makeFromLogValues (var, vals); factor.plusEquals (0.1); // log 0.1, log 1.1, log 2.1, log 3.1 double[] expected = new double[] { -2.3025850929940455, 0.09531017980432493, 0.7419373447293773, 1.1314021114911006 }; LogTableFactor ans = LogTableFactor.makeFromLogValues (var, expected); assertTrue ("Error: expected "+ans.dumpToString ()+" but was "+factor.dumpToString (), factor.almostEquals (ans)); }
public void testSparseMarginalizeLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; int[] szs = { 2, 2 }; int[] idxs1 = new int[] { 0, 1, 3 }; double[] vals1 = new double[]{ 2.0, 4.0, 8.0 }; LogTableFactor ptl1 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals1)); LogTableFactor ans = LogTableFactor.makeFromValues (vars[0], new double[] { 6, 8 }); Factor ptl2 = ptl1.marginalize (vars[0]); assertTrue ("Tast failed! Expected: "+ans+" Actual: "+ptl2+" Orig: "+ptl1, ans.almostEquals (ptl2)); }
public void testSparseMarginalizeLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; int[] szs = { 2, 2 }; int[] idxs1 = new int[] { 0, 1, 3 }; double[] vals1 = new double[]{ 2.0, 4.0, 8.0 }; LogTableFactor ptl1 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals1)); LogTableFactor ans = LogTableFactor.makeFromValues (vars[0], new double[] { 6, 8 }); Factor ptl2 = ptl1.marginalize (vars[0]); assertTrue ("Tast failed! Expected: "+ans+" Actual: "+ptl2+" Orig: "+ptl1, ans.almostEquals (ptl2)); }
public void testSparseMultiplyLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; int[] szs = { 2, 2 }; int[] idxs1 = new int[] { 0, 1, 3 }; double[] vals1 = new double[]{ 2.0, 4.0, 8.0 }; int[] idxs2 = new int[] { 0, 3 }; double[] vals2 = new double [] { 0.5, 0.5 }; double[] vals3 = new double [] { 1.0, 0, 4.0 }; LogTableFactor ptl1 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals1)); LogTableFactor ptl2 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs2, vals2)); LogTableFactor ans = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals3)); Factor ptl3 = ptl1.multiply (ptl2); assertTrue ("Tast failed! Expected: "+ans+" Actual: "+ptl3, ans.almostEquals (ptl3)); }
public void testSparseMultiplyLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; int[] szs = { 2, 2 }; int[] idxs1 = new int[] { 0, 1, 3 }; double[] vals1 = new double[]{ 2.0, 4.0, 8.0 }; int[] idxs2 = new int[] { 0, 3 }; double[] vals2 = new double [] { 0.5, 0.5 }; double[] vals3 = new double [] { 1.0, 0, 4.0 }; LogTableFactor ptl1 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals1)); LogTableFactor ptl2 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs2, vals2)); LogTableFactor ans = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals3)); Factor ptl3 = ptl1.multiply (ptl2); assertTrue ("Tast failed! Expected: "+ans+" Actual: "+ptl3, ans.almostEquals (ptl3)); }
public void testSparseDivideLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; int[] szs = { 2, 2 }; int[] idxs1 = new int[] { 0, 1, 3 }; double[] vals1 = new double[]{ 2.0, 4.0, 8.0 }; int[] idxs2 = new int[] { 0, 3 }; double[] vals2 = new double [] { 0.5, 0.5 }; double[] vals3 = new double [] { 4.0, 0, 16.0 }; LogTableFactor ptl1 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals1)); LogTableFactor ptl2 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs2, vals2)); LogTableFactor ans = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals3)); ptl1.divideBy (ptl2); assertTrue ("Tast failed! Expected: "+ans+" Actual: "+ptl1, ans.almostEquals (ptl1)); }
public void testSparseDivideLogSpace () { Variable[] vars = new Variable[] { new Variable (2), new Variable (2) }; int[] szs = { 2, 2 }; int[] idxs1 = new int[] { 0, 1, 3 }; double[] vals1 = new double[]{ 2.0, 4.0, 8.0 }; int[] idxs2 = new int[] { 0, 3 }; double[] vals2 = new double [] { 0.5, 0.5 }; double[] vals3 = new double [] { 4.0, 0, 16.0 }; LogTableFactor ptl1 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals1)); LogTableFactor ptl2 = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs2, vals2)); LogTableFactor ans = LogTableFactor.makeFromMatrix (vars, new SparseMatrixn (szs, idxs1, vals3)); ptl1.divideBy (ptl2); assertTrue ("Tast failed! Expected: "+ans+" Actual: "+ptl1, ans.almostEquals (ptl1)); }