com.wcohen.ss.api

Class StringDistanceTeacher

java.lang.Object

com.wcohen.ss.api.StringDistanceTeacher

Direct Known Subclasses:

BasicTeacher, MatchDataTeacher

public abstract class StringDistanceTeacher
extends Object

Train a StringDistanceLearner and return the learned StringDistance, using some unspecified source of information to train the learner.

Constructor Summary

Constructors

Constructor and Description
StringDistanceTeacher()

Method Summary

Modifier and Type	Method and Description
protected abstract DistanceInstanceIterator	distanceExamplePool() A pool of unlabeled pairs of strings over which distances will be computed, to be used for supervised learning.
protected abstract DistanceInstanceIterator	distanceInstancePool() A pool of unlabeled pairs of strings over which distances will be computed, to be used for active or semi-supervised learning.
protected abstract boolean	hasAnswers() Return true if this teacher can answer more queries.
protected abstract DistanceInstance	labelInstance(DistanceInstance distanceInstance) Label an instance queried by the learner.
protected abstract StringWrapperIterator	stringWrapperIterator() Strings over which distances will be computed.
StringDistance	train(StringDistanceLearner learner)

Methods inherited from class java.lang.Object

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

Constructor Detail

StringDistanceTeacher

public StringDistanceTeacher()

Method Detail

train

public final StringDistance train(StringDistanceLearner learner)

stringWrapperIterator

protected abstract StringWrapperIterator stringWrapperIterator()

Strings over which distances will be computed.

distanceInstancePool

protected abstract DistanceInstanceIterator distanceInstancePool()

A pool of unlabeled pairs of strings over which distances will be computed, to be used for active or semi-supervised learning.

distanceExamplePool

protected abstract DistanceInstanceIterator distanceExamplePool()

A pool of unlabeled pairs of strings over which distances will be computed, to be used for supervised learning.

labelInstance

protected abstract DistanceInstance labelInstance(DistanceInstance distanceInstance)

Label an instance queried by the learner. Return null if the query can't be answered.

hasAnswers

protected abstract boolean hasAnswers()

Return true if this teacher can answer more queries.