de.fuberlin.wiwiss.semmf.descr
Interface NodeMatchingDescription

All Known Implementing Classes:

NodeMatchingDescriptionImpl

public interface NodeMatchingDescription

Each object holding cluster matching information must implement this interface, in order to be compatible with the MatchingEngine.

Version:

1.0 last modified on 29.11.2006

Author:

Radoslaw Oldakowski

Method Summary

java.lang.String	getLabel()
Matcher	getMatcher()
java.util.List	getPropertyMatchingDescriptionList()
java.lang.String	getQueryNodePath()
java.lang.String	getResourceNodePath()
float	getWeight()
boolean	hasProperties()
boolean	reverseMatching() In most cases the matching engine compares a value from a resource graph with the semantically corresponding value from a query graph (= the "required" value).

Method Detail

getLabel

java.lang.String getLabel()

Returns:

label of this node.

getWeight

float getWeight()

Returns:

weight which represents the importance of this node among other nodes in a particular ClusterMatchingDescription The weight is a float number [0..1]. The sum of all node weights must equal 1.

getQueryNodePath

java.lang.String getQueryNodePath()

Returns:

RDQL path expression which will be evaluated by the matching engine in order to find the queryNode.

getResourceNodePath

java.lang.String getResourceNodePath()

Returns:

RDQL path expression which will be evaluated by the matching engine in order to find a particualr resourceNode.

getMatcher

Matcher getMatcher()

Returns:

Matcher which will calculate the similarity of the query and res nodes

reverseMatching

boolean reverseMatching()

In most cases the matching engine compares a value from a resource graph with the semantically corresponding value from a query graph (= the "required" value). But for some nodes it is reasonable to reverse the matching. A good example is comparing job requirements with applicant's profile. If a person (query graph) looks for a job (resource graph) then while comparing his skills with skills required for a certain position the required skills from a resource graph (job description) become the "should be" values, thus the matching has to be reversed.

Returns:

true if the matching should be reversed

hasProperties

boolean hasProperties()

Returns:

true if this node has properties which should be matched

getPropertyMatchingDescriptionList

java.util.List getPropertyMatchingDescriptionList()

Returns:

list of objects implementing the PropertyMatchingDescription interface.