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Data Mining VS Visualization. Santiago González Tortosa <[email protected]>. Contents. Data Mining VS Visualization Visualize to DM DM to Visualize ( to DM ) Real world work : Global Behavior Modeling : A New approach to Grid autonomic management.

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contents
Contents
  • Data Mining VS Visualization
  • Visualizeto DM
  • DM toVisualize (to DM)
  • Real worldwork:
    • Global BehaviorModeling: A New approachtoGridautonomicmanagement
data mining vs visualization1
Data Mining VS Visualization
  • Data Mining
    • Knowledgediscovery and extration
    • Notalwaysiseasytoseepatterns, distributions, etc.
  • Visualization
    • Represents data (2D, 3D, Virtual Reality,…)
    • Helpstoextractpatterns
    • Notalwaysiseasytorepresent data in 2 or 3 dimensions
visualize to dm
Visualizeto DM
  • Visualizationhelpustoextractanypattern in the data
visualize to dm1
Visualizeto DM
  • Visualizationhelpustoextractanypattern in the data
dm to visualize
DM toVisualize
  • Data contains N (> 3) features
    • Curse of Dimensionality
  • Wewanttovisualizeall data
  • DimensionalityReduction
    • Reduce number of features
    • Transform and create new features
dm to visualize1
DM toVisualize
  • DimensionalityReduction
    • L.J.P. van der Maaten, E.O. Postma, and H.J. van den Herik. DimensionalityReduction: A ComparativeReview. TilburgUniversityTechnicalReport, TiCC-TR 2009-005, 2009
  • Convextechniques: optimizeanobjective function that does not contain any local optima
  • Nonconvextechniques: optimizeobjective functions that do contain local optima
dm to visualize2
DM toVisualize
  • Optimizationtechniques (hillclimbing, evolutive, etc.)
dm to visualize3
DM toVisualize
  • Optimizationtechniques
    • Oneobjective
    • Oneobjectivewithconstraints (Semi-Supervisedand labeling)
    • Multiobjective
dm to visualize4
DM toVisualize
  • Example: Optimize axis
dm to visualize5
DM toVisualize
  • DimensionalityReduction in 2 phases:
    • FSS: FeatureSubsetSelection (wrapper, needed CLASS!)
    • Transformation and creation of new features (f.e. PCA)
dm to visualize6
DM toVisualize
  • Example of DimensionalityReduction in 2 phases
    • Userexpertinteracts
dm to visualize7
DM toVisualize
  • DM toVisualize….to DM!!
  • The idea istoobtain new knowledgeorpatternsviewingthe data.
    • Supervisedinfo: data withthesameclass are represented in thesamearea (KNN).
    • Unsupervisedinfo: data isagrouped
dm to visualize8
DM toVisualize
  • Examplethatsome data isagrouped
dm to visualize9
DM toVisualize
  • Visualization
    • 2D and 3D visualization
    • Virtual Reality
      • Inmersion
      • Interaction
      • Imagination
    • AugmentedReality
real world work
Real worldwork

Global BehaviorModeling: A New approachtoGridautonomicmanagement

Jesus Montes <[email protected]>

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