org.dllearner.learningproblems
Class EvaluationCache

java.lang.Object
  org.dllearner.learningproblems.EvaluationCache

public class EvaluationCache
extends Object

Caches results of previous concept evaluation to speed up further evaluations. Implements a fast evaluation approach, which tries to infer the covered examples of a given concept from previous results. TODO Under construction.

Author:

Jens Lehmann

Constructor Summary

EvaluationCache(SortedSet<Individual> examples)

Method Summary

SortedSetTuple<Individual>	infer(Description concept) Determines which examples are instances of a concept.
void	put(Description concept, SortedSet<Individual> individuals)

Methods inherited from class java.lang.Object

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

Constructor Detail

EvaluationCache

public EvaluationCache(SortedSet<Individual> examples)

Method Detail

put

public void put(Description concept,
                SortedSet<Individual> individuals)

infer

public SortedSetTuple<Individual> infer(Description concept)

Determines which examples are instances of a concept.

Parameters:

concept -

Returns:

A tuple of two sets, where the first element is the set of individuals belonging to the class and the second element is the set of individuals not belonging to the class. For all elements, which are in neither of the sets, the cache cannot safely determine whether they are concept instances or not.