databionics.esom.train
Class OnlineSOM

java.lang.Object
  databionics.esom.train.SOM
      databionics.esom.train.OnlineSOM

public class OnlineSOM
extends SOM

Implementation of the standard SOM training by pattern: The update of the best matching neuron and its neighbors is done right after the best match search for the curent pattern.

Field Summary

protected static org.apache.log4j.Logger

log interface to log4j system

Fields inherited from class databionics.esom.train.SOM

bestmatches, bmSearch, bmStat, bmStatNeeded, center, classes, count, data, descriptives, distanceFunction, distances, epoch, epochs, grid, initMethod, keys, lrn, neighborhood, neuron, nf, offline, oldBestmatches, online, pattern, permutation, permutations, permute, qerror, radius, radiusCooling, random, rate, rateCooling, saveEpoch, saveEpoches, savePrefix, saveUMatrix, view

Constructor Summary

OnlineSOM()
Standard constructor

Method Summary

void	update(cern.colt.matrix.DoubleMatrix1D vector, int bm, int pos) Update the current neuron and the neighborhood

Methods inherited from class databionics.esom.train.SOM

afterEpoch, afterUpdate, beforeEpoch, beforeSearch, beforeUpdate, calcQerror, centerMap, cool, getBestMatches, getBmSearch, getData, getDescriptives, getDistance, getDistance, getDistanceFunction, getDistances, getEpochs, getGrid, getKeys, getNeighborhood, getNumberFormat, getOldBestmatches, getPattern, getPermutation, getPermute, getRadius, getRadiusCooling, getRateCooling, init, isBmStatNeeded, isCenter, loadCls, loadData, saveBestMatches, setBestMatches, setBestMatches, setBmSearch, setBmStatNeeded, setCenter, setData, setDistanceFunction, setDistances, setEpochs, setGrid, setInit, setKeys, setNeighborhood, setNumberFormat, setOldBestmatches, setOnline, setPermute, setRadiusCooling, setRateCooling, setSaveEpoch, setSaveEpochBoolean, setSavePrefix, setSaveUMatrix, stop, train, updateNeighborhood, updateNeuron

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final org.apache.log4j.Logger log

interface to log4j system

Constructor Detail

OnlineSOM

public OnlineSOM()

Standard constructor

Method Detail

update

public void update(cern.colt.matrix.DoubleMatrix1D vector,
                   int bm,
                   int pos)

Update the current neuron and the neighborhood

Specified by:

update in class SOM

Parameters:

vector - vector of data

bm - index of bestmatching neuron