amie.mining.assistant

Class RelationSignatureDefaultMiningAssistant

java.lang.Object

amie.mining.assistant.MiningAssistant

amie.mining.assistant.DefaultMiningAssistant

amie.mining.assistant.RelationSignatureDefaultMiningAssistant

public class RelationSignatureDefaultMiningAssistant
extends DefaultMiningAssistant

This class overrides the default mining asssistant enforcing type constraints on the head variables of rules. The type constraints correspond to the domain and ranges of the head relation, that is, it mines rules of the form B ^ is(x, D) ^ is(y, R) => rh(x, y) where D and R are the domain and ranges of relation rh.

Author:

luis

Field Summary

Fields inherited from class amie.mining.assistant.DefaultMiningAssistant

hardQueries

Fields inherited from class amie.mining.assistant.MiningAssistant

allowConstants, avoidUnboundTypeAtoms, bodyExcludedRelations, bodyTargetRelations, confidenceMetric, countAlwaysOnSubject, enabledConfidenceUpperBounds, enabledFunctionalityHeuristic, enablePerfectRules, enableQueryRewriting, enforceConstants, exploitMaxLengthOption, headCardinalities, headExcludedRelations, kb, kbSchema, maxDepth, minPcaConfidence, minStdConfidence, recursivityLimit, subPropertyString, totalObjectCount, totalSubjectCount, typeString, verbose

Constructor Summary

Constructors

Constructor and Description
RelationSignatureDefaultMiningAssistant(KB dataSource)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getDescription() Brief description of the MiningAssistant capabilities.
void	setBodyExcludedRelations(java.util.Collection<javatools.datatypes.ByteString> excludedRelations)
void	setHeadExcludedRelations(java.util.Collection<javatools.datatypes.ByteString> headExcludedRelations)
boolean	testConfidenceThresholds(Rule candidate) It checks whether a rule satisfies the confidence thresholds and the sky-line heuristic: the strategy that avoids outputting rules that do not improve the confidence w.r.t their parents.

Methods inherited from class amie.mining.assistant.DefaultMiningAssistant

calculateConfidenceMetrics, computeBodySize, computeCardinality, computePcaBodySize, computePCAConfidence, computeStandardConfidence, containsHardCase, getClosingAtoms, getDanglingAtoms, getDanglingAtoms, getInitialAtoms, getInitialAtomsFromSeeds, getInstantiatedAtoms, getTotalCount, main, rewriteProjectionQuery

Methods inherited from class amie.mining.assistant.MiningAssistant

buildInitialQueries, calculateConfidenceApproximationFor3Atoms, calculateConfidenceApproximationForGeneralCase, calculateConfidenceBoundsAndApproximations, canAddInstantiatedAtoms, findCountingVariable, getBodyExcludedRelations, getBodyTargetRelations, getConfidenceMetric, getFactsCount, getHeadCardinality, getHeadExcludedRelations, getInstantiatedAtoms, getKb, getKbSchema, getMaxDepth, getMinConfidence, getPcaConfidenceThreshold, getRecursivityLimit, getRelationCardinality, getRelationCardinality, getSubClasses, getTotalCount, getTotalObjectCount, getTotalSubjectCount, isAvoidUnboundTypeAtoms, isEnabledConfidenceUpperBounds, isEnabledFunctionalityHeuristic, isEnablePerfectRules, isEnableQueryRewriting, isEnforceConstants, isExploitMaxLengthOption, isVerbose, registerHeadRelation, setAllowConstants, setAvoidUnboundTypeAtoms, setConfidenceMetric, setCountAlwaysOnSubject, setEnabledConfidenceUpperBounds, setEnabledFunctionalityHeuristic, setEnablePerfectRules, setEnableQueryRewriting, setEnforceConstants, setExploitMaxLengthOption, setKbSchema, setMaxDepth, setPcaConfidenceThreshold, setRecursivityLimit, setStdConfidenceThreshold, setTargetBodyRelations, setVerbose, testLength

Methods inherited from class java.lang.Object

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

Constructor Detail

RelationSignatureDefaultMiningAssistant

public RelationSignatureDefaultMiningAssistant(KB dataSource)

Parameters:

dataSource -

Method Detail

getDescription

public java.lang.String getDescription()

Description copied from class: MiningAssistant

Brief description of the MiningAssistant capabilities.

Overrides:

getDescription in class DefaultMiningAssistant

setHeadExcludedRelations

public void setHeadExcludedRelations(java.util.Collection<javatools.datatypes.ByteString> headExcludedRelations)

Overrides:

setHeadExcludedRelations in class MiningAssistant

setBodyExcludedRelations

public void setBodyExcludedRelations(java.util.Collection<javatools.datatypes.ByteString> excludedRelations)

Overrides:

setBodyExcludedRelations in class MiningAssistant

testConfidenceThresholds

public boolean testConfidenceThresholds(Rule candidate)

Description copied from class: MiningAssistant

It checks whether a rule satisfies the confidence thresholds and the sky-line heuristic: the strategy that avoids outputting rules that do not improve the confidence w.r.t their parents.

Overrides:

testConfidenceThresholds in class MiningAssistant

Returns: