MultiAgentDecisionProcess
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AlphaVectorPOMDP implements POMDP specific functionality for alpha-vector based planning. More...
#include <AlphaVectorPOMDP.h>
Public Member Functions | |
AlphaVectorPOMDP (const PlanningUnitDecPOMDPDiscrete *pu) | |
(default) Constructor More... | |
AlphaVectorPOMDP (const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > &pu) | |
AlphaVector | BeliefBackup (const JointBeliefInterface &b, const GaoVectorSet &G) const |
Computes the AlphaVector resulting from backing up JointBeliefInterface b with the back-projected vectors in G. More... | |
AlphaVector | BeliefBackup (const JointBeliefInterface &b, Index a, const GaoVectorSet &G) const |
virtual | ~AlphaVectorPOMDP () |
Destructor. More... | |
Public Member Functions inherited from AlphaVectorPlanning | |
AlphaVectorPlanning (const PlanningUnitDecPOMDPDiscrete *pu) | |
(default) Constructor More... | |
AlphaVectorPlanning (const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > &pu) | |
AlphaVectorPlanning (const PlanningUnitFactoredDecPOMDPDiscrete *pu) | |
AlphaVectorPlanning (const boost::shared_ptr< const PlanningUnitFactoredDecPOMDPDiscrete > &pu) | |
GaoVectorSet | BackProject (const ValueFunctionPOMDPDiscrete &v) const |
Back projects a value function. More... | |
GaoVectorSet | BackProject (const VectorSet &v) const |
Back projects a value function, represented as a VectorSet. More... | |
VectorSet | CrossSum (const VectorSet &A, const VectorSet &B) const |
Compute the cross-sum of two vector sets. More... | |
void | ExportPOMDPFile (const std::string &filename) const |
Exports the POMDP to file named filename. More... | |
size_t | GetAcceleratedPruningThreshold () const |
ValueFunctionPOMDPDiscrete | GetImmediateRewardValueFunction () const |
Returns the value function induced by the reward model. More... | |
const PlanningUnitDecPOMDPDiscrete * | GetPU () const |
Returns a ref to the PlanningUnit. More... | |
void | Initialize () |
QFunctionsDiscrete | Prune (const QFunctionsDiscrete &Q) const |
Prune a Q-valuefunction. More... | |
ValueFunctionPOMDPDiscrete | Prune (const ValueFunctionPOMDPDiscrete &V) const |
Prune a POMDP valuefunction. More... | |
VectorSet | Prune (const VectorSet &V) const |
Prune a VectorSet. More... | |
BeliefSet | SampleBeliefs (const ArgumentHandlers::Arguments &args) const |
Sample a belief set according to the arguments. More... | |
BeliefSetNonStationary | SampleBeliefsNonStationary (const ArgumentHandlers::Arguments &args) const |
Sample a non-stationary belief set according to the arguments. More... | |
BeliefSetNonStationary | SampleBeliefsNonStationary (int nrBeliefs=10, int uniqueBeliefs=0, int resetAfter=0, int useQMDPforSamplingBeliefs=0, double QMDPexploreProb=0.1) const |
Sample a non-stationary belief set specifying each argument. More... | |
void | SetAcceleratedPruningThreshold (size_t acceleratedPruningThreshold) |
VectorSet | Union (const VectorSet &A, const VectorSet &B) const |
Computes the union of two vector sets. More... | |
QFunctionsDiscrete | ValueFunctionToQ (const ValueFunctionPOMDPDiscrete &V) const |
virtual | ~AlphaVectorPlanning () |
Destructor. More... | |
Public Member Functions inherited from TimedAlgorithm | |
void | AddTimedEvent (const std::string &id, clock_t duration) |
Adds event of certain duration, e.g., an external program call. More... | |
std::vector< double > | GetTimedEventDurations (const std::string &id) |
Returns all stored durations (in s) for a particular event. More... | |
void | LoadTimers (const std::string &filename) |
Load timing info from file filename. More... | |
void | PrintTimers () const |
Print stored timing info. More... | |
void | PrintTimersSummary () const |
Sums data and prints out a summary. More... | |
void | SaveTimers (const std::string &filename) const |
Save collected timing info to file filename. More... | |
void | SaveTimers (std::ofstream &of) const |
Save collected timing info to ofstream of. More... | |
void | StartTimer (const std::string &id) const |
Start to time an event identified by id. More... | |
void | StopTimer (const std::string &id) const |
Stop to time an event identified by id. More... | |
TimedAlgorithm () | |
(default) Constructor More... | |
virtual | ~TimedAlgorithm () |
Destructor. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from AlphaVectorPlanning | |
static void | CrossSum (const std::vector< AlphaVector > &A, const std::vector< AlphaVector > &B, std::vector< AlphaVector > &output) |
Compute the cross-sum of two vector sets. More... | |
static bool | EqualVS (const VectorSet &VS1, const VectorSet &VS2) |
static void | ExportBeliefSet (const BeliefSet &B, const std::string &filename) |
Exports a belief set to a file. More... | |
static void | ExportPOMDPFile (const std::string &filename, const DecPOMDPDiscreteInterface *decpomdp) |
Exports the POMDP represented by pu to file named filename. More... | |
static void | ExportValueFunction (const std::string &filename, const ValueFunctionPOMDPDiscrete &V, bool includeBGindices=true) |
Exports a value function V to file named filename. More... | |
static void | ExportValueFunction (const std::string &filename, const QFunctionsDiscrete &Q, bool includeBGindices=true) |
Exports a Q functions Q to file named filename. More... | |
static void | ExportValueFunction (const std::string &filename, const QFunctionsDiscreteNonStationary &Q, bool includeBGindices=true) |
Exports a Q functions Q to file named filename. More... | |
static std::vector< int > | GetDuplicateIndices (const VectorSet &V) |
Returns a vector<int> which for each vector k in V specifies whether it is unique, in which case vector<int>[k] is set to -1, or whether it is a duplicate of another vector l in V, in which case vector<int>[k] is set to the index of l, where 0 <= l < V.size()). More... | |
static ValueFunctionPOMDPDiscrete | GetImmediateRewardValueFunction (const PlanningUnitDecPOMDPDiscrete *pu) |
Returns the value function induced by the reward model of pu. More... | |
static ValueFunctionPOMDPDiscrete | ImportValueFunction (const std::string &filename) |
Imports a value function from a file named filename. More... | |
static QFunctionsDiscreteNonStationary | ImportValueFunction (const std::string &filename, size_t nr, size_t nrA, size_t nrS) |
static ValueFunctionPOMDPDiscrete | QFunctionsToValueFunction (const QFunctionsDiscrete &Q) |
Takes all the vectors from the Q-function Q and throws them together as a 'V' function. More... | |
static std::string | SoftPrint (const VectorSet &VS) |
static QFunctionsDiscrete | ValueFunctionToQ (const ValueFunctionPOMDPDiscrete &V, size_t nrA, size_t nrS) |
static VectorSet | ValueFunctionToVectorSet (const ValueFunctionPOMDPDiscrete &V) |
static bool | VectorIsDominated (const AlphaVector &alpha, const ValueFunctionPOMDPDiscrete &V) |
static bool | VectorIsDominated (Index i, const VectorSet &V, const std::vector< bool > &vectorsInVtoConsider) |
static bool | VectorIsInValueFunction (const AlphaVector &alpha, const ValueFunctionPOMDPDiscrete &V) |
static VectorSet * | VectorOfVectorsToVectorSet (const std::vector< std::vector< double > > &vectors) |
static ValueFunctionPOMDPDiscrete | VectorSetToValueFunction (const VectorSet &VS, Index a=0, AlphaVector::BGPolicyIndex betaI=-1) |
AlphaVectorPOMDP implements POMDP specific functionality for alpha-vector based planning.
AlphaVectorPOMDP::AlphaVectorPOMDP | ( | const PlanningUnitDecPOMDPDiscrete * | pu | ) |
(default) Constructor
AlphaVectorPOMDP::AlphaVectorPOMDP | ( | const boost::shared_ptr< const PlanningUnitDecPOMDPDiscrete > & | pu | ) |
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virtual |
Destructor.
AlphaVector AlphaVectorPOMDP::BeliefBackup | ( | const JointBeliefInterface & | b, |
const GaoVectorSet & | G | ||
) | const |
Computes the AlphaVector resulting from backing up JointBeliefInterface b with the back-projected vectors in G.
Implements equation (3.18) of PhD thesis Matthijs.
References PlanningUnitDecPOMDPDiscrete::GetDiscount(), BeliefValue::GetMaximizingVectorIndex(), PlanningUnitMADPDiscrete::GetNrJointActions(), PlanningUnitMADPDiscrete::GetNrJointObservations(), PlanningUnitMADPDiscrete::GetNrStates(), AlphaVectorPlanning::GetPU(), PlanningUnitDecPOMDPDiscrete::GetReward(), AlphaVector::SetAction(), AlphaVector::SetValue(), TimedAlgorithm::StartTimer(), and TimedAlgorithm::StopTimer().
Referenced by PerseusPOMDPPlanner::BackupStage(), and AlphaVectorWeighted::BeliefBackup().
AlphaVector AlphaVectorPOMDP::BeliefBackup | ( | const JointBeliefInterface & | b, |
Index | a, | ||
const GaoVectorSet & | G | ||
) | const |
References PlanningUnitDecPOMDPDiscrete::GetDiscount(), BeliefValue::GetMaximizingVectorIndex(), PlanningUnitMADPDiscrete::GetNrJointObservations(), PlanningUnitMADPDiscrete::GetNrStates(), AlphaVectorPlanning::GetPU(), PlanningUnitDecPOMDPDiscrete::GetReward(), AlphaVector::SetAction(), AlphaVector::SetValue(), TimedAlgorithm::StartTimer(), and TimedAlgorithm::StopTimer().