amie.mining.assistant.experimental

Class SeedsCountMiningAssistant

java.lang.Object

amie.mining.assistant.MiningAssistant

amie.mining.assistant.experimental.SeedsCountMiningAssistant

public class SeedsCountMiningAssistant
extends MiningAssistant

Field Summary

Fields

Modifier and Type	Field and Description
protected long	subjectSchemaCount

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
SeedsCountMiningAssistant(KB dataSource, KB schemaSource)

Method Summary

Modifier and Type	Method and Description
void	calculateConfidenceMetrics(Rule candidate) It computes the standard and the PCA confidence of a given rule.
void	getClosingAtoms(Rule query, double minSupportThreshold, java.util.Collection<Rule> output) Returns all candidates obtained by binding two values
void	getDanglingAtoms(Rule query, double minCardinality, java.util.Collection<Rule> output) Returns all candidates obtained by adding a new dangling atom to the query.
void	getInitialAtoms(double minSupportThreshold, java.util.Collection<Rule> output) Returns a list of one-atom queries using the relations from the KB
protected void	getInstantiatedAtoms(Rule query, Rule originalQuery, ByteString[] danglingEdge, int danglingPosition, double minSupportThreshold, java.util.Collection<Rule> output)
long	getTotalCount(Rule candidate)

Methods inherited from class amie.mining.assistant.MiningAssistant

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

Methods inherited from class java.lang.Object

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

Field Detail

subjectSchemaCount

protected long subjectSchemaCount

Constructor Detail

SeedsCountMiningAssistant

public SeedsCountMiningAssistant(KB dataSource,
                                 KB schemaSource)

Method Detail

getTotalCount

public long getTotalCount(Rule candidate)

Overrides:

getTotalCount in class MiningAssistant

getInstantiatedAtoms

protected void getInstantiatedAtoms(Rule query,
                                    Rule originalQuery,
                                    ByteString[] danglingEdge,
                                    int danglingPosition,
                                    double minSupportThreshold,
                                    java.util.Collection<Rule> output)

getClosingAtoms

public void getClosingAtoms(Rule query,
                            double minSupportThreshold,
                            java.util.Collection<Rule> output)

Returns all candidates obtained by binding two values

Overrides:

getClosingAtoms in class MiningAssistant

Parameters:

currentNode -

minSupportThreshold -

omittedVariables -

getInitialAtoms

public void getInitialAtoms(double minSupportThreshold,
                            java.util.Collection<Rule> output)

Description copied from class: MiningAssistant

Returns a list of one-atom queries using the relations from the KB

Overrides:

getInitialAtoms in class MiningAssistant

Parameters:

minSupportThreshold - Only relations of size bigger or equal than this value will be considered.

getDanglingAtoms

public void getDanglingAtoms(Rule query,
                             double minCardinality,
                             java.util.Collection<Rule> output)

Description copied from class: MiningAssistant

Returns all candidates obtained by adding a new dangling atom to the query. A dangling atom joins with the rule on one variable and introduces a fresh variable not seen in the rule.

Overrides:

getDanglingAtoms in class MiningAssistant

calculateConfidenceMetrics

public void calculateConfidenceMetrics(Rule candidate)

Description copied from class: MiningAssistant

It computes the standard and the PCA confidence of a given rule. It assumes the rule's cardinality (absolute support) is known.

Overrides:

calculateConfidenceMetrics in class MiningAssistant