org.apache.mahout.clustering.display

Class DisplayClustering

java.lang.Object

java.awt.Component

java.awt.Container

java.awt.Window

java.awt.Frame

org.apache.mahout.clustering.display.DisplayClustering

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible

Direct Known Subclasses:

DisplayCanopy, DisplayFuzzyKMeans, DisplayKMeans, DisplaySpectralKMeans

public class DisplayClustering
extends Frame

See Also:

Serialized Form

Nested Class Summary

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

Frame.AccessibleAWTFrame

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

Window.AccessibleAWTWindow, Window.Type

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

Container.AccessibleAWTContainer

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

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field and Description
protected static List<List<Cluster>>	CLUSTERS
protected static int	DS
protected static int	res
protected static List<VectorWritable>	SAMPLE_DATA
protected static int	SIZE
protected static double	T1
protected static double	T2

Fields inherited from class java.awt.Frame

CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR

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
DisplayClustering()

Method Summary

Methods

Modifier and Type	Method and Description
protected static void	generate2dSamples()
protected static void	generate2dSamples(int num, double mx, double my, double sdx, double sdy) Generate random samples and add them to the sampleData
protected static void	generateSamples()
protected static void	generateSamples(int num, double mx, double my, double sd) Generate random samples and add them to the sampleData
void	initialize()
protected static boolean	isSignificant(Cluster cluster)
protected static void	loadClustersWritable(org.apache.hadoop.fs.Path output)
static void	main(String[] args)
void	paint(Graphics g)
protected static void	plotClusteredRectangle(Graphics2D g2, Vector v, Vector dv, Color color) Identical to plotRectangle(), but with the option of setting the color of the rectangle's stroke.
protected static void	plotClusteredSampleData(Graphics2D g2, org.apache.hadoop.fs.Path data) This method plots points and colors them according to their cluster membership, rather than drawing ellipses.
protected static void	plotClusters(Graphics2D g2)
protected static void	plotEllipse(Graphics2D g2, Vector v, Vector dv) Draw an ellipse on the graphics context
protected static void	plotRectangle(Graphics2D g2, Vector v, Vector dv) Draw a rectangle on the graphics context
protected static void	plotSampleData(Graphics2D g2)
protected static void	plotSampleParameters(Graphics2D g2)
protected static List<Cluster>	readClustersWritable(org.apache.hadoop.fs.Path clustersIn)
protected static void	writeSampleData(org.apache.hadoop.fs.Path output)

Methods inherited from class java.awt.Frame

addNotify, getAccessibleContext, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, paramString, remove, removeNotify, setBackground, setCursor, setExtendedState, setIconImage, setMaximizedBounds, setMenuBar, setOpacity, setResizable, setShape, setState, setTitle, setUndecorated

Methods inherited from class java.awt.Window

addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBackground, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getIconImages, getInputContext, getListeners, getLocale, getModalExclusionType, getMostRecentFocusOwner, getOpacity, getOwnedWindows, getOwner, getOwnerlessWindows, getShape, getToolkit, getType, getWarningString, getWindowFocusListeners, getWindowListeners, getWindows, getWindowStateListeners, hide, isActive, isAlwaysOnTop, isAlwaysOnTopSupported, isAutoRequestFocus, isFocusableWindow, isFocusCycleRoot, isFocused, isLocationByPlatform, isOpaque, isShowing, isValidateRoot, pack, postEvent, processEvent, processWindowEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setAutoRequestFocus, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImages, setLocation, setLocation, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setSize, setSize, setType, setVisible, show, toBack, toFront

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resize, resize, revalidate, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setMaximumSize, setName, setPreferredSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.awt.MenuContainer

getFont, postEvent

Field Detail

DS

protected static final int DS

See Also:

Constant Field Values

SIZE

protected static final int SIZE

See Also:

Constant Field Values

SAMPLE_DATA

protected static final List<VectorWritable> SAMPLE_DATA

CLUSTERS

protected static final List<List<Cluster>> CLUSTERS

T1

protected static final double T1

See Also:

Constant Field Values

T2

protected static final double T2

See Also:

Constant Field Values

res

protected static int res

Constructor Detail

DisplayClustering

public DisplayClustering()

Method Detail

initialize

public void initialize()

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

paint

public void paint(Graphics g)

Overrides:

paint in class Window

plotClusters

protected static void plotClusters(Graphics2D g2)

plotSampleParameters

protected static void plotSampleParameters(Graphics2D g2)

plotSampleData

protected static void plotSampleData(Graphics2D g2)

plotClusteredSampleData

protected static void plotClusteredSampleData(Graphics2D g2,
                           org.apache.hadoop.fs.Path data)

This method plots points and colors them according to their cluster membership, rather than drawing ellipses. As of commit, this method is used only by K-means spectral clustering. Since the cluster assignments are set within the eigenspace of the data, it is not inherent that the original data cluster as they would in K-means: that is, as symmetric gaussian mixtures. Since Spectral K-Means uses K-Means to cluster the eigenspace data, the raw output is not directly usable. Rather, the cluster assignments from the raw output need to be transferred back to the original data. As such, this method will read the SequenceFile cluster results of K-means and transfer the cluster assignments to the original data, coloring them appropriately.

Parameters:

g2 -

data -

plotClusteredRectangle

protected static void plotClusteredRectangle(Graphics2D g2,
                          Vector v,
                          Vector dv,
                          Color color)

Identical to plotRectangle(), but with the option of setting the color of the rectangle's stroke. NOTE: This should probably be refactored with plotRectangle() since most of the code here is direct copy/paste from that method.

Parameters:

g2 - A Graphics2D context.

v - A vector for the rectangle's center.

dv - A vector for the rectangle's dimensions.

color - The color of the rectangle's stroke.

plotRectangle

protected static void plotRectangle(Graphics2D g2,
                 Vector v,
                 Vector dv)

Draw a rectangle on the graphics context

Parameters:

g2 - a Graphics2D context

v - a Vector of rectangle center

dv - a Vector of rectangle dimensions

plotEllipse

protected static void plotEllipse(Graphics2D g2,
               Vector v,
               Vector dv)

Draw an ellipse on the graphics context

Parameters:

g2 - a Graphics2D context

v - a Vector of ellipse center

dv - a Vector of ellipse dimensions

generateSamples

protected static void generateSamples()

generate2dSamples

protected static void generate2dSamples()

generateSamples

protected static void generateSamples(int num,
                   double mx,
                   double my,
                   double sd)

Generate random samples and add them to the sampleData

Parameters:

num - int number of samples to generate

mx - double x-value of the sample mean

my - double y-value of the sample mean

sd - double standard deviation of the samples

writeSampleData

protected static void writeSampleData(org.apache.hadoop.fs.Path output)
                               throws IOException

Throws:

IOException

readClustersWritable

protected static List<Cluster> readClustersWritable(org.apache.hadoop.fs.Path clustersIn)

loadClustersWritable

protected static void loadClustersWritable(org.apache.hadoop.fs.Path output)
                                    throws IOException

Throws:

IOException

generate2dSamples

protected static void generate2dSamples(int num,
                     double mx,
                     double my,
                     double sdx,
                     double sdy)

Generate random samples and add them to the sampleData

Parameters:

num - int number of samples to generate

mx - double x-value of the sample mean

my - double y-value of the sample mean

sdx - double x-value standard deviation of the samples

sdy - double y-value standard deviation of the samples

isSignificant

protected static boolean isSignificant(Cluster cluster)