edu.washington.cs.knowitall.rule.learn
Class RuleSetOptimizer<E extends Comparable<E>>

java.lang.Object
  edu.washington.cs.knowitall.rule.learn.Learner<E>
      edu.washington.cs.knowitall.rule.learn.RuleSetOptimizer<E>

Direct Known Subclasses:

SimpleMaximizingRuleSetOptimizer

public abstract class RuleSetOptimizer<E extends Comparable<E>>
extends Learner<E>

Rule learning framework for mapping extractions onto an ontology. Annotations of rule instances are supplied, as well as corresponding extractions. For each annotation, a base rule is created by making a maximally constrained rule that results in the ontological relation given the extraction. Then the base rule is generalized using a search algorithm, by default beam search. A list of generalized rules are returned. There may be more than one value in the case of a tie.

Author:

schmmd

Field Summary

Fields inherited from class edu.washington.cs.knowitall.rule.learn.Learner

baseRuleFactory, confidenceFunction, validator

Constructor Summary

RuleSetOptimizer(BaseRuleFactory factory, RuleValidator validator, ConfidenceFunction<E> confidence)

Method Summary

abstract Collection<Rule>	optimize(Iterable<Rule> rules)
static void	printCorrect(Iterable<OntologicalRelation> relations)
static void	printError(Iterable<OntologicalRelation> relations)

Methods inherited from class edu.washington.cs.knowitall.rule.learn.Learner

generalize

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleSetOptimizer

public RuleSetOptimizer(BaseRuleFactory factory,
                        RuleValidator validator,
                        ConfidenceFunction<E> confidence)

Method Detail

optimize

public abstract Collection<Rule> optimize(Iterable<Rule> rules)

printCorrect

public static void printCorrect(Iterable<OntologicalRelation> relations)

printError

public static void printError(Iterable<OntologicalRelation> relations)