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Diffstat (limited to 'fuzzylite/fl/defuzzifier/WeightedAverageCustom.h')
-rw-r--r-- | fuzzylite/fl/defuzzifier/WeightedAverageCustom.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/fuzzylite/fl/defuzzifier/WeightedAverageCustom.h b/fuzzylite/fl/defuzzifier/WeightedAverageCustom.h new file mode 100644 index 0000000..5597f97 --- /dev/null +++ b/fuzzylite/fl/defuzzifier/WeightedAverageCustom.h @@ -0,0 +1,77 @@ +/* + fuzzylite (R), a fuzzy logic control library in C++. + Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved. + Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com> + + This file is part of fuzzylite. + + fuzzylite is free software: you can redistribute it and/or modify it under + the terms of the FuzzyLite License included with the software. + + You should have received a copy of the FuzzyLite License along with + fuzzylite. If not, see <http://www.fuzzylite.com/license/>. + + fuzzylite is a registered trademark of FuzzyLite Limited. + */ + +#ifndef FL_WEIGHTEDAVERAGECUSTOM_H +#define FL_WEIGHTEDAVERAGECUSTOM_H + +#include "fl/defuzzifier/WeightedDefuzzifier.h" + +namespace fl { + class Activated; + + /** + The (experimental) WeightedAverageCustom class is a WeightedDefuzzifier that computes the + weighted average of a fuzzy set represented in an Aggregated Term utilizing + the fuzzy operators for implication and aggregation to compute the weighted + average. This is an experimental approach to take advantage of customization + thanks to the object-oriented design. + + @author Juan Rada-Vilela, Ph.D. + @see WeightedAverage + @see WeightedSum + @see WeightedSumCustom + @see WeightedDefuzzifier + @see Defuzzifier + @since 6.0 + */ + class FL_API WeightedAverageCustom : public WeightedDefuzzifier { + public: + explicit WeightedAverageCustom(Type type = Automatic); + explicit WeightedAverageCustom(const std::string& type); + virtual ~WeightedAverageCustom() FL_IOVERRIDE; + FL_DEFAULT_COPY_AND_MOVE(WeightedAverageCustom) + + virtual std::string className() const FL_IOVERRIDE; + + virtual Complexity complexity(const Term* term) const FL_IOVERRIDE; + + /** + Computes the weighted average of the given fuzzy set represented as + an AggregatedTerm as @f$y = \dfrac{\sum_i w_iz_i}{\sum_i w_i} @f$, + where @f$w_i@f$ is the activation degree of term @f$i@f$, and + @f$z_i = \mu_i(w_i) @f$. + + If the implication and aggregation operators are set to fl::null (or + set to AlgebraicProduct and UnboundedSum, respectively), then the + operation of WeightedAverageCustom is the same as the WeightedAverage. + Otherwise, the implication and aggregation operators are utilized to + compute the multiplications and sums in @f$y@f$, respectively. + + @param term is the fuzzy set represented as an Aggregated Term + @param minimum is the minimum value of the range (only used for Tsukamoto) + @param maximum is the maximum value of the range (only used for Tsukamoto) + @return the weighted average of the given fuzzy set + */ + virtual scalar defuzzify(const Term* term, + scalar minimum, scalar maximum) const FL_IOVERRIDE; + virtual WeightedAverageCustom* clone() const FL_IOVERRIDE; + + static Defuzzifier* constructor(); + }; +} + +#endif /* FL_WEIGHTEDAVERAGECUSTOM_H */ + |