Reasoner
Class DynamicReasoner

java.lang.Object
  |
  +--Reasoner.DynamicReasoner

public class DynamicReasoner

extends java.lang.Object

Generates inferences from the solution set of the reasoning engine.

Version:

Created 5 September 2003

Author:

Dan Tappan

See Also:

StaticReasoner, SimulationEngine

Field Summary

private KnowledgeBase	m_knowledge_base
private MonteCarloRunSet	m_monte_carlo_run_set
private ObjectTemplateSet	m_object_template_set
private SemanticNetwork	m_semantic_network
private StaticReasoner	m_static_reasoner

Constructor Summary

DynamicReasoner(SimulationEngine simulation_engine, MonteCarloRunSet monte_carlo_run_set, boolean generate_inferences)
Creates a new dynamic reasoner that builds late inferences from a Monte Carlo run set and back-fills them into the original semantic network.

Method Summary

private void	buildLateAttributeInferences(java.util.ArrayList attribute_inferences, ObjectInference object_inference) Builds attribute instances for the attribute inferences and adds them to the semantic network.
private void	buildLateInferences() Builds the late inferences from the Monte Carlo run set.
private void	buildLateRelationshipInferences(java.util.ArrayList relationship_inferences, ObjectInference object_inference1, ObjectInference object_inference2) Builds relationship instances for the relationship inferences and adds them to the semantic network.
private java.util.ArrayList	extractBindableInferenceNodesFromNestedDependencyNodes(java.util.ArrayList dependency_nodes) Returns a list of inference nodes at any level at and/or beneath a list of dependency nodes.
private void	extractBindableInferenceNodesFromNestedDependencyNodes(DependencyNode dependency_node, java.util.ArrayList inference_nodes) Recursively builds a list of inference nodes in and/or contained beneath a dependency node.
SemanticNetwork	getSemanticNetworkInstance() Returns the semantic network augmented by any inferences made in this dynamic reasoner.
java.lang.String	toString() Returns a string representation of this class.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

m_semantic_network

private SemanticNetwork m_semantic_network

m_knowledge_base

private KnowledgeBase m_knowledge_base

m_static_reasoner

private StaticReasoner m_static_reasoner

m_monte_carlo_run_set

private MonteCarloRunSet m_monte_carlo_run_set

m_object_template_set

private ObjectTemplateSet m_object_template_set

Constructor Detail

DynamicReasoner

public DynamicReasoner(SimulationEngine simulation_engine,
                       MonteCarloRunSet monte_carlo_run_set,
                       boolean generate_inferences)
                throws java.lang.Exception

Creates a new dynamic reasoner that builds late inferences from a Monte Carlo run set and back-fills them into the original semantic network.

Parameters:

simulation_engine - - the simulation engine

monte_carlo_run_set - - the Monte Carlo run set

generate_inferences - - whether inferences should be generated

Throws:

java.lang.Exception - - if the reasoning process fails

Method Detail

buildLateInferences

private void buildLateInferences()
                          throws java.lang.Exception

Builds the late inferences from the Monte Carlo run set.

Throws:

java.lang.Exception - - if any inferences cannot be built

buildLateAttributeInferences

private void buildLateAttributeInferences(java.util.ArrayList attribute_inferences,
                                          ObjectInference object_inference)
                                   throws java.lang.Exception

Builds attribute instances for the attribute inferences and adds them to the semantic network.

Parameters:

attribute_inferences - - the attribute inference nodes

object_inference - - the object inference to bind the attribute to

Throws:

java.lang.Exception - - if any attribute inferences cannot be built

buildLateRelationshipInferences

private void buildLateRelationshipInferences(java.util.ArrayList relationship_inferences,
                                             ObjectInference object_inference1,
                                             ObjectInference object_inference2)
                                      throws java.lang.Exception

Builds relationship instances for the relationship inferences and adds them to the semantic network.

Parameters:

relationship_inferences - - the relationship inference nodes

object_inference1 - - the left-hand-side object inference to bind the relationship to

object_inference2 - - the right-hand-side object inference to bind the relationship to

Throws:

java.lang.Exception - - if any relationship inferences cannot be built

extractBindableInferenceNodesFromNestedDependencyNodes

private java.util.ArrayList extractBindableInferenceNodesFromNestedDependencyNodes(java.util.ArrayList dependency_nodes)

Returns a list of inference nodes at any level at and/or beneath a list of dependency nodes.

Parameters:

dependency_nodes - - the dependency nodes to process

Returns:

the inference nodes, with duplicates removed

See Also:

extractBindableInferenceNodesFromNestedDependencyNodes(DependencyNode, ArrayList)

extractBindableInferenceNodesFromNestedDependencyNodes

private void extractBindableInferenceNodesFromNestedDependencyNodes(DependencyNode dependency_node,
                                                                    java.util.ArrayList inference_nodes)

Recursively builds a list of inference nodes in and/or contained beneath a dependency node.

Parameters:

dependency_node - - the dependency node to process

inference_nodes - - the list of inference nodes. This is an in-out parameter

See Also:

extractBindableInferenceNodesFromNestedDependencyNodes(ArrayList)

getSemanticNetworkInstance

public SemanticNetwork getSemanticNetworkInstance()

Returns the semantic network augmented by any inferences made in this dynamic reasoner.

Returns:

the semantic network instance

See Also:

MonteCarloRunSet.setSemanticNetworkInstance(SemanticNetwork.SemanticNetwork)

toString

public java.lang.String toString()

Returns a string representation of this class.

Overrides:

toString in class java.lang.Object

Returns:

the String representation