コード例 #1
0
ファイル: SerializableTest.cs プロジェクト: kant2002/infer
            public void Initialize(bool skipStringDistributions = false)
            {
                // DO NOT make this a constructor, because it makes the test not notice complete lack of serialization as an empty object is set up exactly as the thing
                // you are trying to deserialize.
                this.pareto  = new Pareto(1.2, 3.5);
                this.poisson = new Poisson(2.3);
                this.wishart = new Wishart(20, new PositiveDefiniteMatrix(new double[, ] {
                    { 22, 21 }, { 21, 23 }
                }));
                this.vectorGaussian = new VectorGaussian(Vector.FromArray(13, 14), new PositiveDefiniteMatrix(new double[, ] {
                    { 16, 15 }, { 15, 17 }
                }));
                this.unnormalizedDiscrete = UnnormalizedDiscrete.FromLogProbs(DenseVector.FromArray(5.1, 5.2, 5.3));
                this.pointMass            = PointMass <double> .Create(1.1);

                this.gaussian             = new Gaussian(11.0, 12.0);
                this.nonconjugateGaussian = new NonconjugateGaussian(1.2, 2.3, 3.4, 4.5);
                this.gamma              = new Gamma(9.0, 10.0);
                this.gammaPower         = new GammaPower(5.6, 2.8, 3.4);
                this.discrete           = new Discrete(6.0, 7.0, 8.0);
                this.conjugateDirichlet = new ConjugateDirichlet(1.2, 2.3, 3.4, 4.5);
                this.dirichlet          = new Dirichlet(3.0, 4.0, 5.0);
                this.beta      = new Beta(2.0, 1.0);
                this.binomial  = new Binomial(5, 0.8);
                this.bernoulli = new Bernoulli(0.6);

                this.sparseBernoulliList    = SparseBernoulliList.Constant(4, new Bernoulli(0.1));
                this.sparseBernoulliList[1] = new Bernoulli(0.9);
                this.sparseBernoulliList[3] = new Bernoulli(0.7);

                this.sparseBetaList    = SparseBetaList.Constant(5, new Beta(2.0, 2.0));
                this.sparseBetaList[0] = new Beta(3.0, 4.0);
                this.sparseBetaList[1] = new Beta(5.0, 6.0);

                this.sparseGaussianList    = SparseGaussianList.Constant(6, Gaussian.FromMeanAndPrecision(0.1, 0.2));
                this.sparseGaussianList[4] = Gaussian.FromMeanAndPrecision(0.3, 0.4);
                this.sparseGaussianList[5] = Gaussian.FromMeanAndPrecision(0.5, 0.6);

                this.sparseGammaList = SparseGammaList.Constant(1, Gamma.FromShapeAndRate(1.0, 2.0));

                this.truncatedGamma    = new TruncatedGamma(1.2, 2.3, 3.4, 4.5);
                this.truncatedGaussian = new TruncatedGaussian(1.2, 3.4, 5.6, 7.8);
                this.wrappedGaussian   = new WrappedGaussian(1.2, 2.3, 3.4);

                ga = Distribution <double> .Array(new[] { this.gaussian, this.gaussian });

                vga = Distribution <Vector> .Array(new[] { this.vectorGaussian, this.vectorGaussian });

                ga2D = Distribution <double> .Array(new[, ] {
                    { this.gaussian, this.gaussian }, { this.gaussian, this.gaussian }
                });

                vga2D = Distribution <Vector> .Array(new[, ] {
                    { this.vectorGaussian, this.vectorGaussian }, { this.vectorGaussian, this.vectorGaussian }
                });

                gaJ = Distribution <double> .Array(new[] { new[] { this.gaussian, this.gaussian }, new[] { this.gaussian, this.gaussian } });

                vgaJ = Distribution <Vector> .Array(new[] { new[] { this.vectorGaussian, this.vectorGaussian }, new[] { this.vectorGaussian, this.vectorGaussian } });

                var gp    = new GaussianProcess(new ConstantFunction(0), new SquaredExponential(0));
                var basis = Util.ArrayInit(2, i => Vector.FromArray(1.0 * i));

                this.sparseGp = new SparseGP(new SparseGPFixed(gp, basis));

                this.quantileEstimator = new QuantileEstimator(0.01);
                this.quantileEstimator.Add(5);
                this.outerQuantiles = OuterQuantiles.FromDistribution(3, this.quantileEstimator);
                this.innerQuantiles = InnerQuantiles.FromDistribution(3, this.outerQuantiles);

                if (!skipStringDistributions)
                {
                    // String distributions can not be serialized by some formatters (namely BinaryFormatter)
                    // That is fine because this combination is never used in practice
                    this.stringDistribution1 = StringDistribution.String("aa")
                                               .Append(StringDistribution.OneOf("b", "ccc")).Append("dddd");
                    this.stringDistribution2 = new StringDistribution();
                    this.stringDistribution2.SetToProduct(StringDistribution.OneOf("a", "b"),
                                                          StringDistribution.OneOf("b", "c"));
                }
            }
コード例 #2
0
        public void SparseGaussianListFactor()
        {
            SparseGaussianList.DefaultTolerance = 1e-10;
            var calcSuffix     = ": calculation differs between sparse and dense";
            var sparsitySuffix = ": result is not sparse as expected";
            var calcErrMsg     = "";
            var sparsityErrMsg = "";
            var tolerance      = 1e-10;

            Rand.Restart(12347);
            int listSize = 50;

            // True distribution for the means
            var sparseMeanDist = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(1, 2), tolerance);

            sparseMeanDist[3] = Gaussian.FromMeanAndPrecision(4, 5);
            sparseMeanDist[6] = Gaussian.FromMeanAndPrecision(7, 8);
            var meanDist        = sparseMeanDist.ToArray();
            var sparseMeanPoint = SparseList <double> .Constant(listSize, 0.1);

            sparseMeanPoint[3] = 0.7;
            sparseMeanPoint[6] = 0.8;
            var meanPoint = sparseMeanPoint.ToArray();

            // True distribution for the precisions
            var sparsePrecDist = SparseGammaList.Constant(listSize, Gamma.FromShapeAndRate(1.1, 1.2), tolerance);

            sparsePrecDist[3] = Gamma.FromShapeAndRate(2.3, 2.4);
            sparsePrecDist[6] = Gamma.FromShapeAndRate(3.4, 4.5);
            var precDist        = sparsePrecDist.ToArray();
            var sparsePrecPoint = SparseList <double> .Constant(listSize, 0.1);

            sparsePrecPoint[3] = 5.6;
            sparsePrecPoint[6] = 0.5;
            var precPoint = sparsePrecPoint.ToArray();

            var sparseSampleDist = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 1.5), tolerance);

            sparseSampleDist[3] = Gaussian.FromMeanAndPrecision(-0.5, 2.0);
            sparseSampleDist[9] = Gaussian.FromMeanAndPrecision(1.6, 0.4);
            var sampleDist        = sparseSampleDist.ToArray();
            var sparseSamplePoint = SparseList <double> .Constant(listSize, 0.5);

            sparseSamplePoint[3] = 0.1;
            sparseSamplePoint[9] = 2.3;
            var samplePoint = sparseSamplePoint.ToArray();

            var toSparseSampleDist = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(-0.2, 0.3), tolerance);

            toSparseSampleDist[3] = Gaussian.FromMeanAndPrecision(2.1, 3.2);
            toSparseSampleDist[4] = Gaussian.FromMeanAndPrecision(1.3, 0.7);
            var toSampleDist = toSparseSampleDist.ToArray();

            var toSparsePrecDist = SparseGammaList.Constant(listSize, Gamma.FromShapeAndRate(2.3, 3.4), tolerance);

            toSparsePrecDist[3] = Gamma.FromShapeAndRate(3.4, 4.5);
            toSparsePrecDist[4] = Gamma.FromShapeAndRate(5.6, 6.7);
            var toPrecDist = toSparsePrecDist.ToArray();

            // ---------------------------
            // Check average log factor
            // ---------------------------
            calcErrMsg = "Average log factor" + calcSuffix;
            // Dist, dist, dist
            var sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSampleDist, sparseMeanDist, sparsePrecDist);
            var avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(sampleDist[i], meanDist[i], precDist[i])).Sum();

            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Dist, dist, point
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSampleDist, sparseMeanDist, sparsePrecPoint);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(sampleDist[i], meanDist[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Dist, point, dist
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSampleDist, sparseMeanPoint, sparsePrecDist);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(sampleDist[i], meanPoint[i], precDist[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Dist, point, point
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSampleDist, sparseMeanPoint, sparsePrecPoint);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(sampleDist[i], meanPoint[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Point, dist, dist
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSamplePoint, sparseMeanDist, sparsePrecDist);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(samplePoint[i], meanDist[i], precDist[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Point, dist, point
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSamplePoint, sparseMeanDist, sparsePrecPoint);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(samplePoint[i], meanDist[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Point, point, dist
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSamplePoint, sparseMeanPoint, sparsePrecDist);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(samplePoint[i], meanPoint[i], precDist[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);
            // Point, point, point
            sparseAvgLog = SparseGaussianListOp.AverageLogFactor(sparseSamplePoint, sparseMeanPoint, sparsePrecPoint);
            avgLog       = Util.ArrayInit(listSize, i => GaussianOp.AverageLogFactor(samplePoint[i], meanPoint[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(avgLog - sparseAvgLog) < tolerance, calcErrMsg);

            // ---------------------------
            // Check log average factor
            // ---------------------------
            calcErrMsg = "Log average factor" + calcSuffix;
            var sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSampleDist, sparseMeanDist, sparsePrecDist, toSparsePrecDist);
            var logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(sampleDist[i], meanDist[i], precDist[i], toPrecDist[i])).Sum();

            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Dist, dist, point
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSampleDist, sparseMeanDist, sparsePrecPoint);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(sampleDist[i], meanDist[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Dist, point, dist
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSampleDist, sparseMeanPoint, sparsePrecDist, toSparsePrecDist);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(sampleDist[i], meanPoint[i], precDist[i], toPrecDist[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Dist, point, point
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSampleDist, sparseMeanPoint, sparsePrecPoint);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(sampleDist[i], meanPoint[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Point, dist, dist
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSamplePoint, sparseMeanDist, sparsePrecDist, toSparsePrecDist);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(samplePoint[i], meanDist[i], precDist[i], toPrecDist[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Point, dist, point
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSamplePoint, sparseMeanDist, sparsePrecPoint);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(samplePoint[i], meanDist[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Point, point, dist
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSamplePoint, sparseMeanPoint, sparsePrecDist);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(samplePoint[i], meanPoint[i], precDist[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);
            // Point, point, point
            sparseLogAvg = SparseGaussianListOp.LogAverageFactor(sparseSamplePoint, sparseMeanPoint, sparsePrecPoint);
            logAvg       = Util.ArrayInit(listSize, i => GaussianOp.LogAverageFactor(samplePoint[i], meanPoint[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(logAvg - sparseLogAvg) < tolerance, calcErrMsg);

            // ---------------------------
            // Check log evidence ratio
            // ---------------------------
            calcErrMsg = "Log evidence ratio" + calcSuffix;
            var sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSampleDist, sparseMeanDist, sparsePrecDist, toSparseSampleDist, toSparsePrecDist);
            var evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(sampleDist[i], meanDist[i], precDist[i], toSampleDist[i], toPrecDist[i])).Sum();

            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Dist, dist, point
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSampleDist, sparseMeanDist, sparsePrecPoint);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(sampleDist[i], meanDist[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Dist, point, dist
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSampleDist, sparseMeanPoint, sparsePrecDist, toSparseSampleDist, toSparsePrecDist);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(sampleDist[i], meanPoint[i], precDist[i], toSampleDist[i], toPrecDist[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Dist, point, point
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSampleDist, sparseMeanPoint, sparsePrecPoint);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(sampleDist[i], meanPoint[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Point, dist, dist
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSamplePoint, sparseMeanDist, sparsePrecDist, toSparsePrecDist);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(samplePoint[i], meanDist[i], precDist[i], toPrecDist[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Point, dist, point
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSamplePoint, sparseMeanDist, sparsePrecPoint);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(samplePoint[i], meanDist[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Point, point, dist
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSamplePoint, sparseMeanPoint, sparsePrecDist);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(samplePoint[i], meanPoint[i], precDist[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);
            // Point, point, point
            sparseEvidRat = SparseGaussianListOp.LogEvidenceRatio(sparseSamplePoint, sparseMeanPoint, sparsePrecPoint);
            evidRat       = Util.ArrayInit(listSize, i => GaussianOp.LogEvidenceRatio(samplePoint[i], meanPoint[i], precPoint[i])).Sum();
            TAssert.True(System.Math.Abs(evidRat - sparseEvidRat) < tolerance, calcErrMsg);

            // ---------------------------
            // Check SampleAverageConditional
            // ---------------------------
            calcErrMsg     = "SampleAverageConditional" + calcSuffix;
            sparsityErrMsg = "SampleAverageConditional" + sparsitySuffix;
            // Use different common value to ensure this gets properly set
            var sparseSampleAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);

            sparseSampleAvgConditional = SparseGaussianListOp.SampleAverageConditional(sparseSampleDist, sparseMeanDist, sparsePrecDist, toSparsePrecDist, sparseSampleAvgConditional);
            var sampleAvgConditional = Util.ArrayInit(listSize, i => GaussianOp.SampleAverageConditional(sampleDist[i], meanDist[i], precDist[i], toPrecDist[i]));

            TAssert.True(3 == sparseSampleAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseSampleAvgConditional.MaxDiff(sampleAvgConditional) < tolerance, calcErrMsg);

            sparseSampleAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);
            sparseSampleAvgConditional = SparseGaussianListOp.SampleAverageConditional(sparseSampleDist, sparseMeanPoint, sparsePrecDist, toSparsePrecDist, sparseSampleAvgConditional);
            sampleAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.SampleAverageConditional(sampleDist[i], meanPoint[i], precDist[i], toPrecDist[i]));
            TAssert.True(3 == sparseSampleAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseSampleAvgConditional.MaxDiff(sampleAvgConditional) < tolerance, calcErrMsg);

            sparseSampleAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);
            sparseSampleAvgConditional = SparseGaussianListOp.SampleAverageConditional(sparseMeanDist, sparsePrecPoint, sparseSampleAvgConditional);
            sampleAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.SampleAverageConditional(meanDist[i], precPoint[i]));
            TAssert.True(2 == sparseSampleAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseSampleAvgConditional.MaxDiff(sampleAvgConditional) < tolerance, calcErrMsg);

            sparseSampleAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);
            sparseSampleAvgConditional = SparseGaussianListOp.SampleAverageConditional(sparseMeanPoint, sparsePrecPoint, sparseSampleAvgConditional);
            sampleAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.SampleAverageConditional(meanPoint[i], precPoint[i]));
            TAssert.True(2 == sparseSampleAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseSampleAvgConditional.MaxDiff(sampleAvgConditional) < tolerance, calcErrMsg);

            // ---------------------------
            // Check MeanAverageConditional
            // ---------------------------
            calcErrMsg     = "MeanAverageConditional" + calcSuffix;
            sparsityErrMsg = "MeanAverageConditional" + sparsitySuffix;
            // Use different common value to ensure this gets properly set
            var sparseMeanAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);

            sparseMeanAvgConditional = SparseGaussianListOp.MeanAverageConditional(sparseSampleDist, sparseMeanDist, sparsePrecDist, toSparsePrecDist, sparseMeanAvgConditional);
            var meanAvgConditional = Util.ArrayInit(listSize, i => GaussianOp.MeanAverageConditional(sampleDist[i], meanDist[i], precDist[i], toPrecDist[i]));

            TAssert.True(3 == sparseMeanAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseMeanAvgConditional.MaxDiff(meanAvgConditional) < tolerance, calcErrMsg);

            sparseMeanAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);
            sparseMeanAvgConditional = SparseGaussianListOp.MeanAverageConditional(sparseSamplePoint, sparseMeanDist, sparsePrecDist, toSparsePrecDist, sparseMeanAvgConditional);
            meanAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.MeanAverageConditional(samplePoint[i], meanDist[i], precDist[i], toPrecDist[i]));
            TAssert.True(3 == sparseMeanAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseMeanAvgConditional.MaxDiff(meanAvgConditional) < tolerance, calcErrMsg);

            sparseMeanAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);
            sparseMeanAvgConditional = SparseGaussianListOp.MeanAverageConditional(sparseSampleDist, sparsePrecPoint, sparseMeanAvgConditional);
            meanAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.MeanAverageConditional(sampleDist[i], precPoint[i]));
            TAssert.True(3 == sparseMeanAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseMeanAvgConditional.MaxDiff(meanAvgConditional) < tolerance, calcErrMsg);

            sparseMeanAvgConditional = SparseGaussianList.Constant(listSize, Gaussian.FromMeanAndPrecision(0.5, 0.6), tolerance);
            sparseMeanAvgConditional = SparseGaussianListOp.MeanAverageConditional(sparseSamplePoint, sparsePrecPoint, sparseMeanAvgConditional);
            meanAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.MeanAverageConditional(samplePoint[i], precPoint[i]));
            TAssert.True(3 == sparseMeanAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparseMeanAvgConditional.MaxDiff(meanAvgConditional) < tolerance, calcErrMsg);

            // ---------------------------
            // Check PrecisionAverageConditional
            // ---------------------------
            calcErrMsg     = "PrecisionAverageConditional" + calcSuffix;
            sparsityErrMsg = "PrecisionAverageConditional" + sparsitySuffix;
            // Use different common value to ensure this gets properly set
            var sparsePrecAvgConditional = SparseGammaList.Constant(listSize, Gamma.FromShapeAndRate(2.1, 3.2), tolerance);

            sparsePrecAvgConditional = SparseGaussianListOp.PrecisionAverageConditional(sparseSampleDist, sparseMeanDist, sparsePrecDist, sparsePrecAvgConditional);
            var precAvgConditional = Util.ArrayInit(listSize, i => GaussianOp.PrecisionAverageConditional(sampleDist[i], meanDist[i], precDist[i]));

            TAssert.True(3 == sparsePrecAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparsePrecAvgConditional.MaxDiff(precAvgConditional) < tolerance, calcErrMsg);

            sparsePrecAvgConditional = SparseGammaList.Constant(listSize, Gamma.FromShapeAndRate(2.1, 3.2), tolerance);
            sparsePrecAvgConditional = SparseGaussianListOp.PrecisionAverageConditional(sparseSamplePoint, sparseMeanDist, sparsePrecDist, sparsePrecAvgConditional);
            precAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.PrecisionAverageConditional(Gaussian.PointMass(samplePoint[i]), meanDist[i], precDist[i]));
            TAssert.True(3 == sparsePrecAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparsePrecAvgConditional.MaxDiff(precAvgConditional) < tolerance, calcErrMsg);

            sparsePrecAvgConditional = SparseGammaList.Constant(listSize, Gamma.FromShapeAndRate(2.1, 3.2), tolerance);
            sparsePrecAvgConditional = SparseGaussianListOp.PrecisionAverageConditional(sparseSampleDist, sparseMeanPoint, sparsePrecDist, sparsePrecAvgConditional);
            precAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.PrecisionAverageConditional(sampleDist[i], Gaussian.PointMass(meanPoint[i]), precDist[i]));
            TAssert.True(3 == sparsePrecAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparsePrecAvgConditional.MaxDiff(precAvgConditional) < tolerance, calcErrMsg);

            sparsePrecAvgConditional = SparseGammaList.Constant(listSize, Gamma.FromShapeAndRate(2.1, 3.2), tolerance);
            sparsePrecAvgConditional = SparseGaussianListOp.PrecisionAverageConditional(sparseSamplePoint, sparseMeanPoint, sparsePrecAvgConditional);
            precAvgConditional       = Util.ArrayInit(listSize, i => GaussianOp.PrecisionAverageConditional(samplePoint[i], meanPoint[i]));
            TAssert.True(3 == sparsePrecAvgConditional.SparseCount, sparsityErrMsg);
            TAssert.True(sparsePrecAvgConditional.MaxDiff(precAvgConditional) < tolerance, calcErrMsg);
        }
コード例 #3
0
            public void Initialize()
            {
                // DO NOT make this a constructor, because it makes the test not notice complete lack of serialization as an empty object is set up exactly as the thing
                // you are trying to deserialize.
                this.pareto  = new Pareto(1.2, 3.5);
                this.poisson = new Poisson(2.3);
                this.wishart = new Wishart(20, new PositiveDefiniteMatrix(new double[, ] {
                    { 22, 21 }, { 21, 23 }
                }));
                this.vectorGaussian = new VectorGaussian(Vector.FromArray(13, 14), new PositiveDefiniteMatrix(new double[, ] {
                    { 16, 15 }, { 15, 17 }
                }));
                this.unnormalizedDiscrete = UnnormalizedDiscrete.FromLogProbs(DenseVector.FromArray(5.1, 5.2, 5.3));
                this.pointMass            = PointMass <double> .Create(1.1);

                this.gaussian             = new Gaussian(11.0, 12.0);
                this.nonconjugateGaussian = new NonconjugateGaussian(1.2, 2.3, 3.4, 4.5);
                this.gamma              = new Gamma(9.0, 10.0);
                this.gammaPower         = new GammaPower(5.6, 2.8, 3.4);
                this.discrete           = new Discrete(6.0, 7.0, 8.0);
                this.conjugateDirichlet = new ConjugateDirichlet(1.2, 2.3, 3.4, 4.5);
                this.dirichlet          = new Dirichlet(3.0, 4.0, 5.0);
                this.beta      = new Beta(2.0, 1.0);
                this.binomial  = new Binomial(5, 0.8);
                this.bernoulli = new Bernoulli(0.6);

                this.sparseBernoulliList    = SparseBernoulliList.Constant(4, new Bernoulli(0.1));
                this.sparseBernoulliList[1] = new Bernoulli(0.9);
                this.sparseBernoulliList[3] = new Bernoulli(0.7);

                this.sparseBetaList    = SparseBetaList.Constant(5, new Beta(2.0, 2.0));
                this.sparseBetaList[0] = new Beta(3.0, 4.0);
                this.sparseBetaList[1] = new Beta(5.0, 6.0);

                this.sparseGaussianList    = SparseGaussianList.Constant(6, Gaussian.FromMeanAndPrecision(0.1, 0.2));
                this.sparseGaussianList[4] = Gaussian.FromMeanAndPrecision(0.3, 0.4);
                this.sparseGaussianList[5] = Gaussian.FromMeanAndPrecision(0.5, 0.6);

                this.sparseGammaList = SparseGammaList.Constant(1, Gamma.FromShapeAndRate(1.0, 2.0));

                this.truncatedGamma    = new TruncatedGamma(1.2, 2.3, 3.4, 4.5);
                this.truncatedGaussian = new TruncatedGaussian(1.2, 3.4, 5.6, 7.8);
                this.wrappedGaussian   = new WrappedGaussian(1.2, 2.3, 3.4);

                ga = Distribution <double> .Array(new[] { this.gaussian, this.gaussian });

                vga = Distribution <Vector> .Array(new[] { this.vectorGaussian, this.vectorGaussian });

                ga2D = Distribution <double> .Array(new[, ] {
                    { this.gaussian, this.gaussian }, { this.gaussian, this.gaussian }
                });

                vga2D = Distribution <Vector> .Array(new[, ] {
                    { this.vectorGaussian, this.vectorGaussian }, { this.vectorGaussian, this.vectorGaussian }
                });

                gaJ = Distribution <double> .Array(new[] { new[] { this.gaussian, this.gaussian }, new[] { this.gaussian, this.gaussian } });

                vgaJ = Distribution <Vector> .Array(new[] { new[] { this.vectorGaussian, this.vectorGaussian }, new[] { this.vectorGaussian, this.vectorGaussian } });

                var gp    = new GaussianProcess(new ConstantFunction(0), new SquaredExponential(0));
                var basis = Util.ArrayInit(2, i => Vector.FromArray(1.0 * i));

                this.sparseGp = new SparseGP(new SparseGPFixed(gp, basis));

                this.quantileEstimator = new QuantileEstimator(0.01);
                this.quantileEstimator.Add(5);
            }