Known-Items Task Evaluation

Class RefSegmentation

java.lang.Object
  |
  +--Segmentation
        |
        +--RefSegmentation

public class RefSegmentation
extends Segmentation

This class represents a segmentation in items of video file and used in known-items task programs of TREC 2001. Not the entire video is represented in a segmentation, the term of segmentation is used for convenience, but it's just a bunch of items of the same video that need to be processed together cause result of one particular system for one particular topic.


Fields inherited from class Segmentation
droppedOut, itemSet, topicNumber
 
Constructor Summary
RefSegmentation(java.util.Comparator orderingComparator, java.lang.String topicNumber)
          Constructs Segmentation object with an ordering comparator for its set of items.
 
Method Summary
 comparisonResult processComparison(SysSegmentation systemSegmentation, int maxAllowedItems)
          Process the comparison between the current assumed reference segmentation and the given system segmentation.
 
Methods inherited from class Segmentation
add, contains, getDroppedOut, getElements, getItemCount, getTopicNumber, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

RefSegmentation

public RefSegmentation(java.util.Comparator orderingComparator,
                       java.lang.String topicNumber)
Constructs Segmentation object with an ordering comparator for its set of items.
Parameters:
orderingComparator - The comparator used to order transitions in the set of transitions
topicNumber - The topic number of the results.
Method Detail

processComparison

public comparisonResult processComparison(SysSegmentation systemSegmentation,
                                          int maxAllowedItems)
                                   throws java.lang.Exception
Process the comparison between the current assumed reference segmentation and the given system segmentation.
Parameters:
systemSegmentation - The system segmentation to be compared with.
Returns:
an object representing all the results (measures...) of the comparison.
Throws:
java.lang.Exception - if the definition of an item is not correct.

Known-Items Task Evaluation

For information over@nist.gov or rtaban@nist.gov