TimQu
7 years ago
6 changed files with 237 additions and 116 deletions
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81src/storm/modelchecker/multiobjective/pcaa/PcaaWeightVectorChecker.cpp
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105src/storm/modelchecker/multiobjective/pcaa/PcaaWeightVectorChecker.h
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26src/storm/modelchecker/multiobjective/pcaa/SparsePcaaQuery.cpp
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12src/storm/modelchecker/multiobjective/pcaa/SparsePcaaQuery.h
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91src/storm/modelchecker/multiobjective/pcaa/SparsePcaaWeightVectorChecker.cpp
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38src/storm/modelchecker/multiobjective/pcaa/SparsePcaaWeightVectorChecker.h
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#include "storm/modelchecker/multiobjective/pcaa/PcaaWeightVectorChecker.h"
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#include "storm/modelchecker/multiobjective/pcaa/SparseMaPcaaWeightVectorChecker.h"
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#include "storm/modelchecker/multiobjective/pcaa/SparseMdpPcaaWeightVectorChecker.h"
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#include "storm/utility/macros.h"
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#include "storm/exceptions/NotSupportedException.h"
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namespace storm { |
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namespace modelchecker { |
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namespace multiobjective { |
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template <typename ModelType> |
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PcaaWeightVectorChecker<ModelType>::PcaaWeightVectorChecker(ModelType const& model, std::vector<Objective<ValueType>> const& objectives) : model(model), objectives(objectives) { |
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// Intentionally left empty
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} |
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template <typename ModelType> |
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void PcaaWeightVectorChecker<ModelType>::setWeightedPrecision(ValueType const& value) { |
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weightedPrecision = value; |
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} |
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template <typename ModelType> |
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typename PcaaWeightVectorChecker<ModelType>::ValueType const& PcaaWeightVectorChecker<ModelType>::getWeightedPrecision() const { |
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return weightedPrecision; |
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} |
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template <typename ModelType> |
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storm::storage::Scheduler<typename PcaaWeightVectorChecker<ModelType>::ValueType> PcaaWeightVectorChecker<ModelType>::computeScheduler() const { |
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STORM_LOG_THROW(false, storm::exceptions::NotSupportedException, "Scheduler generation is not supported in this setting."); |
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} |
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template <typename ModelType> |
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template<typename VT, typename std::enable_if<std::is_same<ModelType, storm::models::sparse::Mdp<VT>>::value, int>::type> |
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std::unique_ptr<PcaaWeightVectorChecker<ModelType>> WeightVectorCheckerFactory<ModelType>::create(ModelType const& model, |
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std::vector<Objective<typename ModelType::ValueType>> const& objectives, |
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storm::storage::BitVector const& possibleECActions, |
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storm::storage::BitVector const& possibleBottomStates) { |
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return std::make_unique<SparseMdpPcaaWeightVectorChecker<ModelType>>(model, objectives, possibleECActions, possibleBottomStates); |
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} |
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template <typename ModelType> |
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template<typename VT, typename std::enable_if<std::is_same<ModelType, storm::models::sparse::MarkovAutomaton<VT>>::value, int>::type> |
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std::unique_ptr<PcaaWeightVectorChecker<ModelType>> WeightVectorCheckerFactory<ModelType>::create(ModelType const& model, |
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std::vector<Objective<typename ModelType::ValueType>> const& objectives, |
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storm::storage::BitVector const& possibleECActions, |
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storm::storage::BitVector const& possibleBottomStates) { |
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return std::make_unique<SparseMaPcaaWeightVectorChecker<ModelType>>(model, objectives, possibleECActions, possibleBottomStates); |
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} |
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template <class ModelType> |
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bool WeightVectorCheckerFactory<ModelType>::onlyCumulativeOrTotalRewardObjectives(std::vector<Objective<typename ModelType::ValueType>> const& objectives) { |
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for (auto const& obj : objectives) { |
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if (!(obj.formula->isRewardOperatorFormula() && (obj.formula->getSubformula().isTotalRewardFormula() || obj.formula->getSubformula().isCumulativeRewardFormula()))) { |
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return false; |
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} |
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} |
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return true; |
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} |
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template class PcaaWeightVectorChecker<storm::models::sparse::Mdp<double>>; |
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template class PcaaWeightVectorChecker<storm::models::sparse::Mdp<storm::RationalNumber>>; |
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template class PcaaWeightVectorChecker<storm::models::sparse::MarkovAutomaton<double>>; |
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template class PcaaWeightVectorChecker<storm::models::sparse::MarkovAutomaton<storm::RationalNumber>>; |
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template class WeightVectorCheckerFactory<storm::models::sparse::Mdp<double>>; |
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template class WeightVectorCheckerFactory<storm::models::sparse::Mdp<storm::RationalNumber>>; |
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template class WeightVectorCheckerFactory<storm::models::sparse::MarkovAutomaton<double>>; |
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template class WeightVectorCheckerFactory<storm::models::sparse::MarkovAutomaton<storm::RationalNumber>>; |
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template std::unique_ptr<PcaaWeightVectorChecker<storm::models::sparse::Mdp<double>>> WeightVectorCheckerFactory<storm::models::sparse::Mdp<double>>::create(storm::models::sparse::Mdp<double> const& model, std::vector<Objective<double>> const& objectives, storm::storage::BitVector const& possibleECActions, storm::storage::BitVector const& possibleBottomStates); |
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template std::unique_ptr<PcaaWeightVectorChecker<storm::models::sparse::Mdp<storm::RationalNumber>>> WeightVectorCheckerFactory<storm::models::sparse::Mdp<storm::RationalNumber>>::create(storm::models::sparse::Mdp<storm::RationalNumber> const& model, std::vector<Objective<storm::RationalNumber>> const& objectives, storm::storage::BitVector const& possibleECActions, storm::storage::BitVector const& possibleBottomStates); |
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template std::unique_ptr<PcaaWeightVectorChecker<storm::models::sparse::MarkovAutomaton<double>>> WeightVectorCheckerFactory<storm::models::sparse::MarkovAutomaton<double>>::create(storm::models::sparse::MarkovAutomaton<double> const& model, std::vector<Objective<double>> const& objectives, storm::storage::BitVector const& possibleECActions, storm::storage::BitVector const& possibleBottomStates); |
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template std::unique_ptr<PcaaWeightVectorChecker<storm::models::sparse::MarkovAutomaton<storm::RationalNumber>>> WeightVectorCheckerFactory<storm::models::sparse::MarkovAutomaton<storm::RationalNumber>>::create(storm::models::sparse::MarkovAutomaton<storm::RationalNumber> const& model, std::vector<Objective<storm::RationalNumber>> const& objectives, storm::storage::BitVector const& possibleECActions, storm::storage::BitVector const& possibleBottomStates); |
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} |
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} |
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} |
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#pragma once |
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#include <vector> |
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#include "storm/storage/Scheduler.h" |
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#include "storm/models/sparse/Mdp.h" |
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#include "storm/models/sparse/MarkovAutomaton.h" |
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#include "storm/modelchecker/multiobjective/SparseMultiObjectivePreprocessorReturnType.h" |
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#include "storm/modelchecker/multiobjective/Objective.h" |
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namespace storm { |
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namespace modelchecker { |
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namespace multiobjective { |
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/*! |
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* Helper Class that takes a weight vector and ... |
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* - computes the optimal value w.r.t. the weighted sum of the individual objectives |
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* - extracts the scheduler that induces this optimum |
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* - computes for each objective the value induced by this scheduler |
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*/ |
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template <typename ModelType> |
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class PcaaWeightVectorChecker { |
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public: |
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typedef typename ModelType::ValueType ValueType; |
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/* |
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* Creates a weight vector checker. |
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* |
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* @param objectives The (preprocessed) objectives |
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* |
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*/ |
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PcaaWeightVectorChecker(ModelType const& model, std::vector<Objective<ValueType>> const& objectives); |
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virtual ~PcaaWeightVectorChecker() = default; |
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virtual void check(std::vector<ValueType> const& weightVector) = 0; |
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/*! |
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* Retrieves the results of the individual objectives at the initial state of the given model. |
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* Note that check(..) has to be called before retrieving results. Otherwise, an exception is thrown. |
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* Also note that there is no guarantee that the under/over approximation is in fact correct |
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* as long as the underlying solution methods are unsound (e.g., standard value iteration). |
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*/ |
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virtual std::vector<ValueType> getUnderApproximationOfInitialStateResults() const = 0; |
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virtual std::vector<ValueType> getOverApproximationOfInitialStateResults() const = 0; |
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/*! |
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* Sets the precision of this weight vector checker. After calling check() the following will hold: |
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* Let h_lower and h_upper be two hyperplanes such that |
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* * the normal vector is the provided weight-vector where the entry for minimizing objectives is negated |
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* * getUnderApproximationOfInitialStateResults() lies on h_lower and |
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* * getOverApproximationOfInitialStateResults() lies on h_upper. |
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* Then the distance between the two hyperplanes is at most weightedPrecision |
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*/ |
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void setWeightedPrecision(ValueType const& value); |
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/*! |
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* Returns the precision of this weight vector checker. |
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*/ |
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ValueType const& getWeightedPrecision() const; |
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/*! |
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* Retrieves a scheduler that induces the current values (if such a scheduler was generated). |
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* Note that check(..) has to be called before retrieving the scheduler. Otherwise, an exception is thrown. |
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*/ |
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virtual storm::storage::Scheduler<ValueType> computeScheduler() const; |
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protected: |
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// The (preprocessed) model |
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ModelType const& model; |
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// The (preprocessed) objectives |
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std::vector<Objective<ValueType>> const& objectives; |
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// The precision of this weight vector checker. |
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ValueType weightedPrecision; |
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}; |
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template<typename ModelType> |
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class WeightVectorCheckerFactory { |
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public: |
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template<typename VT = typename ModelType::ValueType, typename std::enable_if<std::is_same<ModelType, storm::models::sparse::Mdp<VT>>::value, int>::type = 0> |
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static std::unique_ptr<PcaaWeightVectorChecker<ModelType>> create(ModelType const& model, |
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std::vector<Objective<typename ModelType::ValueType>> const& objectives, |
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storm::storage::BitVector const& possibleECActions, |
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storm::storage::BitVector const& possibleBottomStates); |
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template<typename VT = typename ModelType::ValueType, typename std::enable_if<std::is_same<ModelType, storm::models::sparse::MarkovAutomaton<VT>>::value, int>::type = 0> |
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static std::unique_ptr<PcaaWeightVectorChecker<ModelType>> create(ModelType const& model, |
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std::vector<Objective<typename ModelType::ValueType>> const& objectives, |
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storm::storage::BitVector const& possibleECActions, |
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storm::storage::BitVector const& possibleBottomStates); |
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private: |
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static bool onlyCumulativeOrTotalRewardObjectives(std::vector<Objective<typename ModelType::ValueType>> const& objectives); |
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}; |
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} |
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} |
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} |
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