public void SemanticWebTest3() { // Simplified name model var prop0 = Variable.Random(NamePrior()).Named("prop0"); // Simplified date model any string ending in a digit var prop1 = Variable.Random( StringDistribution.Char(DiscreteChar.Digit()) + StringDistribution.Any() + StringDistribution.Char(DiscreteChar.Digit())) .Named("prop1"); var template = Variable.Random(StringDistribution.String("{0}") + WordStrings.WordMiddle() + StringDistribution.String("{1}")) .Named("template"); var text = Variable.StringFormat(template, prop0, prop1).Named("text"); text.ObservedValue = "Tony Blair was born on 6 May 1953"; var engine = new InferenceEngine(); engine.Compiler.RecommendedQuality = QualityBand.Experimental; engine.NumberOfIterations = 1; var prop0Dist = engine.Infer <StringDistribution>(prop0); var prop1Dist = engine.Infer <StringDistribution>(prop1); var templateDist = engine.Infer <StringDistribution>(template); StringInferenceTestUtilities.TestProbability(prop0Dist, 1.0, "Tony Blair"); StringInferenceTestUtilities.TestProbability(prop1Dist, 0.5, "1953", "6 May 1953"); StringInferenceTestUtilities.TestProbability(templateDist, 0.5, "{0} was born on {1}", "{0} was born on 6 May {1}"); }
public void ProductWithLogOverrideBroad() { for (var i = 0; i < 2; i++) { var dist1 = DiscreteChar.LetterOrDigit(); var dist2 = DiscreteChar.Digit(); var logOverrideProbability = Math.Log(0.9); dist1.SetToPartialUniformOf(dist1, logOverrideProbability); Xunit.Assert.True(dist1.HasLogProbabilityOverride); Xunit.Assert.True(dist2.IsBroad); if (i == 1) { Util.Swap(ref dist1, ref dist2); } var dist3 = DiscreteChar.Uniform(); dist3.SetToProduct(dist1, dist2); Xunit.Assert.True(dist3.HasLogProbabilityOverride); Assert.Equal(logOverrideProbability, dist3.GetLogProb('5'), Eps); Xunit.Assert.True(double.IsNegativeInfinity(dist3.GetLogProb('a'))); } }
public void LengthBounds() { var lengthDist1 = StringDistribution.Any(minLength: 1, maxLength: 3); Assert.True(lengthDist1.IsProper()); StringInferenceTestUtilities.TestProbability(lengthDist1, StringInferenceTestUtilities.StringUniformProbability(1, 3, 65536), "a", "aa", "aaa"); StringInferenceTestUtilities.TestProbability(lengthDist1, 0.0, string.Empty, "aaaa"); var lengthDist2 = StringDistribution.Repeat(DiscreteChar.OneOf('a', 'b'), minTimes: 1, maxTimes: 3); Assert.True(lengthDist2.IsProper()); StringInferenceTestUtilities.TestProbability(lengthDist2, StringInferenceTestUtilities.StringUniformProbability(1, 3, 2), "a", "ab", "aba"); StringInferenceTestUtilities.TestProbability(lengthDist2, 0.0, string.Empty, "aaaa", "abab", "cc"); var lengthDist3 = StringDistribution.Repeat(DiscreteChar.OneOf('a', 'b'), minTimes: 2, maxTimes: 2); Assert.True(lengthDist3.IsProper()); StringInferenceTestUtilities.TestProbability(lengthDist3, StringInferenceTestUtilities.StringUniformProbability(2, 2, 2), "aa", "ab", "ba", "bb"); StringInferenceTestUtilities.TestProbability(lengthDist3, 0.0, string.Empty, "a", "abab", "cc"); var minLengthDist = StringDistribution.Any(minLength: 2); Assert.False(minLengthDist.IsProper()); StringInferenceTestUtilities.TestProbability(minLengthDist, 1.0, "aa", "123", "@*(@*&(@)"); StringInferenceTestUtilities.TestProbability(minLengthDist, 0.0, string.Empty, "a", "!"); var maxLengthDist = StringDistribution.ZeroOrMore(DiscreteChar.Digit(), maxTimes: 3); Assert.True(maxLengthDist.IsProper()); StringInferenceTestUtilities.TestProbability(maxLengthDist, StringInferenceTestUtilities.StringUniformProbability(0, 3, 10), string.Empty, "1", "32", "432"); StringInferenceTestUtilities.TestProbability(maxLengthDist, 0.0, "abc", "1234"); }
public void CommonChars() { TestSupport("digit", DiscreteChar.Digit(), "0123456789", "Ab !Ј"); TestSupport("lower", DiscreteChar.Lower(), "abcdefghixyz", "ABC0123, "); TestSupport("upper", DiscreteChar.Upper(), "ABCDEFGHUXYZ", "abc0123, "); TestSupport("letter", DiscreteChar.Letter(), "aBcDeFgGhxyzXYZ", "0123! ,"); TestSupport("letterOrDigit", DiscreteChar.LetterOrDigit(), "abcABC0123xyzXYZ789", " !Ј$,"); TestSupport("wordChar", DiscreteChar.WordChar(), "abc_ABC_0123s", " !:.,"); TestSupport("whitespace", DiscreteChar.Whitespace(), " \t", "abcABC0123,:!"); }
public void BroadAndNarrow() { var dist1 = DiscreteChar.Digit(); Xunit.Assert.True(dist1.IsBroad); var dist2 = DiscreteChar.OneOf('1', '3', '5', '6'); Xunit.Assert.False(dist2.IsBroad); }
public void ItemFromString() { Variable <string> str1 = Variable.StringOfLength(2, DiscreteChar.Digit()); Variable <string> str2 = Variable.StringOfLength(3, DiscreteChar.Letter()); Variable <string> str = str1 + str2; var engine = new InferenceEngine(); Assert.Equal(DiscreteChar.Digit(), engine.Infer <DiscreteChar>(Variable.GetItem(str, 0)), ProbEps); Assert.Equal(DiscreteChar.Digit(), engine.Infer <DiscreteChar>(Variable.GetItem(str, 1)), ProbEps); Assert.Equal(DiscreteChar.Letter(), engine.Infer <DiscreteChar>(Variable.GetItem(str, 2)), ProbEps); Assert.Equal(DiscreteChar.Letter(), engine.Infer <DiscreteChar>(Variable.GetItem(str, 3)), ProbEps); Assert.Equal(DiscreteChar.Letter(), engine.Infer <DiscreteChar>(Variable.GetItem(str, 4)), ProbEps); Assert.Throws <AllZeroException>(() => engine.Infer <DiscreteChar>(Variable.GetItem(str, 5))); }
public void Sum() { StringTransducer replace = StringTransducer.Sum( StringTransducer.Replace(DiscreteChar.Lower(), DiscreteChar.Digit()), StringTransducer.Replace(DiscreteChar.Lower(), DiscreteChar.LetterOrDigit())); StringInferenceTestUtilities.TestTransducerValue(replace, "hello", "123", 2.0); StringInferenceTestUtilities.TestTransducerValue(replace, "w", "1337", 2.0); StringInferenceTestUtilities.TestTransducerValue(replace, "w", string.Empty, 2.0); StringInferenceTestUtilities.TestTransducerValue(replace, string.Empty, "17", 2.0); StringInferenceTestUtilities.TestTransducerValue(replace, string.Empty, string.Empty, 2.0); StringInferenceTestUtilities.TestTransducerValue(replace, "hello", "worlds", 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, "hello", "WORLDS111", 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, "123", "worlds", 0.0); StringInferenceTestUtilities.TestTransducerValue(replace, "123", "123", 0.0); StringInferenceTestUtilities.TestTransducerValue(replace, "1", string.Empty, 0.0); }
public void ReplaceAutomaton() { StringAutomaton automaton1 = StringAutomaton.Constant(2.0, DiscreteChar.Lower()); automaton1 = automaton1.Sum(StringAutomaton.ConstantOnElement(3.0, 'a')); StringAutomaton automaton2 = StringAutomaton.Constant(0.5, DiscreteChar.Digit()); automaton2 = automaton2.Sum(StringAutomaton.Constant(2.5, DiscreteChar.LetterOrDigit())); StringTransducer replace = StringTransducer.Replace(automaton1, automaton2); StringInferenceTestUtilities.TestTransducerValue(replace, string.Empty, "123", 6.0); StringInferenceTestUtilities.TestTransducerValue(replace, "a", "123", 15.0); StringInferenceTestUtilities.TestTransducerValue(replace, "ax", "AbC", 5.0); StringInferenceTestUtilities.TestTransducerValue(replace, "a", "a", 12.5); StringInferenceTestUtilities.TestTransducerValue(replace, string.Empty, string.Empty, 6.0); StringInferenceTestUtilities.TestTransducerValue(replace, "123", string.Empty, 0.0); StringInferenceTestUtilities.TestTransducerValue(replace, "AbC", "ax", 0.0); StringInferenceTestUtilities.TestTransducerValue(replace, "1", "1", 0.0); }
public void UniformOf() { var unif1 = StringDistribution.ZeroOrMore(DiscreteChar.Lower()); Assert.False(unif1.IsUniform()); Assert.False(unif1.IsProper()); StringInferenceTestUtilities.TestProbability(unif1, 1.0, "hello", "a", string.Empty); StringInferenceTestUtilities.TestProbability(unif1, 0.0, "123", "!", "Abc"); // Test if non-uniform element distribution does not affect the outcome Vector probs = DiscreteChar.Digit().GetProbs(); probs['1'] = 0; probs['2'] = 0.3; probs['3'] = 0.0001; var unif2 = StringDistribution.ZeroOrMore(DiscreteChar.FromVector(probs)); StringInferenceTestUtilities.TestProbability(unif2, 1.0, "0", "234", string.Empty); StringInferenceTestUtilities.TestProbability(unif2, 0.0, "1", "231", "!", "Abc"); }
private static StringDistribution TemplateArgString() => StringDistribution.Char('{') + StringDistribution.Char(DiscreteChar.Digit()) + StringDistribution.Char('}');
public void InefficientPermutationRepresentation() { StringDistribution placeholder = StringDistribution.Char('{') + StringDistribution.Char(DiscreteChar.Digit()) + StringDistribution.Char('}'); StringDistribution formatPrior = placeholder + StringDistribution.String(" "); formatPrior = StringDistribution.ZeroOrMore(formatPrior) + placeholder; const int ArgCount = 6; const int ArgLength = 3; StringDistribution[] args = Util.ArrayInit(ArgCount, i => StringDistribution.String(new string((char)('0' + i), ArgLength))); StringDistribution str = StringFormatOp_AllowMissingPlaceholders_NoArgumentNames.StrAverageConditional(formatPrior, args); Console.WriteLine(str.GetWorkspaceOrPoint().States.Count); StringInferenceTestUtilities.TestIfIncludes(str, "111 333 222", "111 222", "222 111", "111", "222", "333"); StringInferenceTestUtilities.TestIfExcludes(str, string.Empty, "111 111", "222 222 111", "333 111 222 333", "112", "1"); }
public void ReplaceElements() { StringTransducer replace = StringTransducer.Replace(DiscreteChar.Lower(), DiscreteChar.Digit()); StringInferenceTestUtilities.TestTransducerValue(replace, "hello", "123", 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, "w", "1337", 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, "w", string.Empty, 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, string.Empty, "17", 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, string.Empty, string.Empty, 1.0); StringInferenceTestUtilities.TestTransducerValue(replace, "123", "worlds", 0.0); StringInferenceTestUtilities.TestTransducerValue(replace, "123", "123", 0.0); StringInferenceTestUtilities.TestTransducerValue(replace, "1", string.Empty, 0.0); }