com.sun.labs.minion.classification
Class Rocchio.HE

java.lang.Object
  com.sun.labs.minion.classification.Rocchio.HE

All Implemented Interfaces:

java.lang.Comparable<Rocchio.HE>

Enclosing class:

Rocchio

protected class Rocchio.HE
extends java.lang.Object
implements java.lang.Comparable<Rocchio.HE>

A class to hold a single element of the heap that we'll use to negotiate the results of queries.

Field Summary

BigQuery	bq
FeatureClusterSet	fcs
ArrayGroup.DocIterator	iter
float[]	neg
float[]	pos
WeightingComponents	wc
WeightingFunction	wf

Constructor Summary

Rocchio.HE(FeatureClusterSet fcs, BigQuery bq)
Creates an element for the heap for a given array group.

Method Summary

int	compareTo(Rocchio.HE o) Our comparison will be based on the iterators, but we'll return the opposite of their result, since we want to be used in a max heap.
void	finish() Finishes off any remaining training documents.
boolean	handleCurr() Handles the document at the head of the iterator.
boolean	next() Advances our iterator, returning true if there is a next element.

Methods inherited from class java.lang.Object

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

Field Detail

bq

public BigQuery bq

fcs

public FeatureClusterSet fcs

wf

public WeightingFunction wf

wc

public WeightingComponents wc

iter

public ArrayGroup.DocIterator iter

pos

public float[] pos

neg

public float[] neg

Constructor Detail

Rocchio.HE

public Rocchio.HE(FeatureClusterSet fcs,
                  BigQuery bq)

Creates an element for the heap for a given array group.

Parameters:

bq - the query for which we're building centroids

Method Detail

next

public boolean next()

Advances our iterator, returning true if there is a next element.

handleCurr

public boolean handleCurr()

Handles the document at the head of the iterator.

Returns:

true if the document was in the training set, false otherwise

finish

public void finish()

Finishes off any remaining training documents.

compareTo

public int compareTo(Rocchio.HE o)

Our comparison will be based on the iterators, but we'll return the opposite of their result, since we want to be used in a max heap.

Specified by:

compareTo in interface java.lang.Comparable<Rocchio.HE>