com.wcohen.ss.expt
Class BasicTeacher

java.lang.Object
  com.wcohen.ss.api.StringDistanceTeacher
      com.wcohen.ss.expt.BasicTeacher

public class BasicTeacher
extends StringDistanceTeacher

Train a StringDistanceLearner.

Constructor Summary

BasicTeacher(Blocker blocker, MatchData data)
Create a teacher from a blocker and a dataset.

BasicTeacher(StringWrapperIterator wrapperIterator, DistanceInstanceIterator distanceInstancePool, DistanceInstanceIterator distanceExamplePool)
Create a teacher using specific values for the various iterators.

Method Summary

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

Methods inherited from class com.wcohen.ss.api.StringDistanceTeacher

train

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicTeacher

public BasicTeacher(Blocker blocker,
                    MatchData data)

Create a teacher from a blocker and a dataset. Will train from all blocked pairs.

BasicTeacher

public BasicTeacher(StringWrapperIterator wrapperIterator,
                    DistanceInstanceIterator distanceInstancePool,
                    DistanceInstanceIterator distanceExamplePool)

Create a teacher using specific values for the various iterators.

Method Detail

stringWrapperIterator

public StringWrapperIterator stringWrapperIterator()

Description copied from class: StringDistanceTeacher

Strings over which distances will be computed.

Specified by:

stringWrapperIterator in class StringDistanceTeacher

distanceInstancePool

public DistanceInstanceIterator distanceInstancePool()

Description copied from class: StringDistanceTeacher

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

Specified by:

distanceInstancePool in class StringDistanceTeacher

distanceExamplePool

public DistanceInstanceIterator distanceExamplePool()

Description copied from class: StringDistanceTeacher

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

Specified by:

distanceExamplePool in class StringDistanceTeacher

labelInstance

public DistanceInstance labelInstance(DistanceInstance distanceInstance)

Description copied from class: StringDistanceTeacher

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

Specified by:

labelInstance in class StringDistanceTeacher

hasAnswers

public boolean hasAnswers()

Description copied from class: StringDistanceTeacher

Return true if this teacher can answer more queries.

Specified by:

hasAnswers in class StringDistanceTeacher