List of evaluateCost() Examples

Examples of evaluateCost()

de.jungblut.math.minimize.CostFunction.evaluateCost()
Evaluation for the cost function to retrieve cost and gradient. @param input a given input vector @return a tuple consists of J (cost) and a vector X which is the gradientof the input.

Examples of de.jungblut.math.minimize.CostFunction.evaluateCost()


        return new CostGradientTuple(cost, gradient);
      }
    };
    DenseDoubleVector v = new DenseDoubleVector(new double[] { 0, 1 });
    CostGradientTuple cost = inlineFunction.evaluateCost(v);
    DoubleVector numericalGradient = MathUtils.numericalGradient(v,
        inlineFunction);
    assertSmallDiff(numericalGradient, cost.getGradient());


    v = new DenseDoubleVector(new double[] { -15, 100 });

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Examples of de.jungblut.math.minimize.CostFunction.evaluateCost()

    DoubleVector numericalGradient = MathUtils.numericalGradient(v,
        inlineFunction);
    assertSmallDiff(numericalGradient, cost.getGradient());


    v = new DenseDoubleVector(new double[] { -15, 100 });
    cost = inlineFunction.evaluateCost(v);


    numericalGradient = MathUtils.numericalGradient(v, inlineFunction);
    assertSmallDiff(numericalGradient, cost.getGradient());
  }

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