edu.udo.cs.miningmart.schemamatching
Class NameAndTypeBasedSchemaMatcher

java.lang.Object
  edu.udo.cs.miningmart.schemamatching.MmSchemaMatcher
      edu.udo.cs.miningmart.schemamatching.NameAndTypeBasedSchemaMatcher

Direct Known Subclasses:

EditDistanceMatcher, NgramMatcher, SoundexMatcher, StringEqualityMatcher

public abstract class NameAndTypeBasedSchemaMatcher
extends MmSchemaMatcher

Abstract superclass of those schema matching methods in the MiningMart environment that use only pairs of strings to do the matching.

Version:

$Id: NameAndTypeBasedSchemaMatcher.java,v 1.4 2006/09/27 15:00:03 euler Exp $

Author:

Timm Euler

Field Summary

Fields inherited from class edu.udo.cs.miningmart.schemamatching.MmSchemaMatcher

THRESHOLD

Constructor Summary

NameAndTypeBasedSchemaMatcher()

Method Summary

double	getDirectSimilarity(BaseAttribute ba1, BaseAttribute ba2) Returns the double value that this matcher considers as the similarity between ba1 and ba2, based only on information related to these BaseAttributes.
double	getDirectSimilarity(Concept con1, Concept con2) Returns the double value that this matcher considers as the similarity between con1 and con2, based only on the information in these concepts but not on dependent attributes (like BaseAttributes).
double	getSimilarityInvolvingConcepts(BaseAttribute ba1, BaseAttribute ba2) Returns the double value that this matcher considers as the similarity between ba1 and ba2, taking the similarity of their respective concepts into accounts as well.
double	getStringSimilarity(java.lang.String str1, java.lang.String str2) Returns the double value that this matcher considers as the similarity between the two given Strings.

Methods inherited from class edu.udo.cs.miningmart.schemamatching.MmSchemaMatcher

getDatatypeSimilarity, getGlobalSimilarity, getNameSimilarity, getSimilarity, getSimilarity, getSimilarityMatrix, getSimilarityMatrix, getSimilarMatchingsGreedy, objectsAreSimilar

Methods inherited from class java.lang.Object

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

Constructor Detail

NameAndTypeBasedSchemaMatcher

public NameAndTypeBasedSchemaMatcher()

Method Detail

getDirectSimilarity

public double getDirectSimilarity(BaseAttribute ba1,
                                  BaseAttribute ba2)
                           throws SchemaMatchException

Description copied from class: MmSchemaMatcher

Returns the double value that this matcher considers as the similarity between ba1 and ba2, based only on information related to these BaseAttributes.

Specified by:

getDirectSimilarity in class MmSchemaMatcher

Parameters:

ba1 - One BaseAttribute

ba2 - Another BaseAttribute

Returns:

a similarity value between 0 and 1

Throws:

SchemaMatchException

See Also:

MmSchemaMatcher.getDirectSimilarity(edu.udo.cs.miningmart.m4.BaseAttribute, edu.udo.cs.miningmart.m4.BaseAttribute)

getStringSimilarity

public double getStringSimilarity(java.lang.String str1,
                                  java.lang.String str2)
                           throws SchemaMatchException

Description copied from class: MmSchemaMatcher

Returns the double value that this matcher considers as the similarity between the two given Strings.

Specified by:

getStringSimilarity in class MmSchemaMatcher

Parameters:

str1 - One String

str2 - Another String

Returns:

a similarity value

Throws:

SchemaMatchException

getDirectSimilarity

public double getDirectSimilarity(Concept con1,
                                  Concept con2)
                           throws SchemaMatchException

Description copied from class: MmSchemaMatcher

Returns the double value that this matcher considers as the similarity between con1 and con2, based only on the information in these concepts but not on dependent attributes (like BaseAttributes).

Specified by:

getDirectSimilarity in class MmSchemaMatcher

Parameters:

con1 - One Concept

con2 - Another Concept

Returns:

a similarity value between 0 and 1

Throws:

SchemaMatchException

See Also:

MmSchemaMatcher.getDirectSimilarity(edu.udo.cs.miningmart.m4.Concept, edu.udo.cs.miningmart.m4.Concept)

getSimilarityInvolvingConcepts

public double getSimilarityInvolvingConcepts(BaseAttribute ba1,
                                             BaseAttribute ba2)
                                      throws SchemaMatchException

Returns the double value that this matcher considers as the similarity between ba1 and ba2, taking the similarity of their respective concepts into accounts as well.

Specified by:

getSimilarityInvolvingConcepts in class MmSchemaMatcher

Parameters:

ba1 - One BaseAttribute

ba2 - Another BaseAttribute

Returns:

a similarity value

Throws:

SchemaMatchException