weka.gui.boundaryvisualizer

Class BoundaryVisualizer

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JPanel

weka.gui.boundaryvisualizer.BoundaryVisualizer

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, TechnicalInformationHandler

public class BoundaryVisualizer
extends javax.swing.JPanel
implements TechnicalInformationHandler

BoundaryVisualizer. Allows the visualization of classifier decision boundaries in two dimensions. A supplied classifier is first trained on supplied training data, then a data generator (currently using kernels) is used to generate new instances at points fixed in the two visualization dimensions but random in the other dimensions. These instances are classified by the classifier and plotted as points with colour corresponding to the probability distribution predicted by the classifier. At present, 2 * 2^(# non-fixed dimensions) points are generated from each kernel per pixel in the display. In practice, fewer points than this are actually classified because kernels are weighted (on a per-pixel basis) according to the fixexd dimensions and kernels corresponding to the lowest 1% of the weight mass are discarded. Predicted probability distributions are weighted (acording to the fixed visualization dimensions) and averaged to produce an RGB value for the pixel. For more information, see

Eibe Frank and Mark Hall (2003). Visualizing Class Probability Estimators. Working Paper 02/03, Department of Computer Science, University of Waikato.

Since:

1.0

Version:

$Revision: 7381 $

Author:

Mark Hall

See Also:

JPanel, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JComponent

javax.swing.JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.BaselineResizeBehavior

Field Summary

Fields inherited from class javax.swing.JComponent

TOOL_TIP_TEXT_KEY, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor and Description
BoundaryVisualizer() Creates a new BoundaryVisualizer instance.

Method Summary

Modifier and Type	Method and Description
static void	createNewVisualizerWindow(Classifier classifier, Instances instances) Creates a new GUI window with all of the BoundaryVisualizer trappings,
static boolean	getExitIfNoWindowsOpen() Gets whether System.exit gets called after the last window gets closed
Instances	getInstances() Get the training instances
TechnicalInformation	getTechnicalInformation() Returns an instance of a TechnicalInformation object, containing detailed information about the technical background of this class, e.g., paper reference or book this class is based on.
java.lang.String	globalInfo() Returns a string describing this tool
static void	main(java.lang.String[] args) Main method for testing this class
void	plotTrainingData() Plots the training data on-screen.
void	setClassifier(Classifier newClassifier) Set a classifier to use
static void	setExitIfNoWindowsOpen(boolean value) Sets whether System.exit gets called when no more windows are open.
void	setInstances(Instances inst) Set the training instances
void	setInstancesFromFileQ() Queries the user for a file to load instances from, then loads the instances in a background process.
int	setUpBoundaryPanel() Sets up the BoundaryPanel object so that it is ready for plotting.
void	stopPlotting() Stops the plotting thread.

Methods inherited from class javax.swing.JPanel

getAccessibleContext, getUI, getUIClassID, setUI, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintImmediately, paintImmediately, print, printAll, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, contains, createImage, createImage, createVolatileImage, createVolatileImage, dispatchEvent, enable, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BoundaryVisualizer

public BoundaryVisualizer()

Creates a new BoundaryVisualizer instance.

Method Detail

globalInfo

public java.lang.String globalInfo()

Returns a string describing this tool

Returns:

a description of the tool suitable for displaying in various Weka GUIs

getTechnicalInformation

public TechnicalInformation getTechnicalInformation()

Returns an instance of a TechnicalInformation object, containing detailed information about the technical background of this class, e.g., paper reference or book this class is based on.

Specified by:

getTechnicalInformation in interface TechnicalInformationHandler

Returns:

the technical information about this class

setClassifier

public void setClassifier(Classifier newClassifier)
                   throws java.lang.Exception

Set a classifier to use

Parameters:

newClassifier - the classifier to use

Throws:

java.lang.Exception - if an error occurs

getInstances

public Instances getInstances()

Get the training instances

Returns:

the training instances

setInstances

public void setInstances(Instances inst)
                  throws java.lang.Exception

Set the training instances

Parameters:

inst - the instances to use

Throws:

java.lang.Exception

setInstancesFromFileQ

public void setInstancesFromFileQ()

Queries the user for a file to load instances from, then loads the instances in a background process. This is done in the IO thread, and an error message is popped up if the IO thread is busy.

setUpBoundaryPanel

public int setUpBoundaryPanel()
                       throws java.lang.Exception

Sets up the BoundaryPanel object so that it is ready for plotting.

Returns:

an error code:
0 - SUCCESS
1 - ERROR - Kernel bandwidth < 0
2 - ERROR - Kernel bandwidth >= number of training instances.

Throws:

java.lang.Exception

plotTrainingData

public void plotTrainingData()
                      throws java.lang.Exception

Plots the training data on-screen. Also does all of the setup required for this to work.

Throws:

java.lang.Exception

stopPlotting

public void stopPlotting()

Stops the plotting thread.

setExitIfNoWindowsOpen

public static void setExitIfNoWindowsOpen(boolean value)

Sets whether System.exit gets called when no more windows are open.

Parameters:

value - if TRUE then a System.exit call is ossued after the last window gets closed.

getExitIfNoWindowsOpen

public static boolean getExitIfNoWindowsOpen()

Gets whether System.exit gets called after the last window gets closed

Returns:

TRUE if System.exit gets called after last window got closed.

createNewVisualizerWindow

public static void createNewVisualizerWindow(Classifier classifier,
                                             Instances instances)
                                      throws java.lang.Exception

Creates a new GUI window with all of the BoundaryVisualizer trappings,

Parameters:

classifier - The classifier to use in the new window. May be null.

instances - The dataset to visualize on in the new window. May be null.

Throws:

java.lang.Exception

main

public static void main(java.lang.String[] args)

Main method for testing this class

Parameters:

args - a String[] value