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Machine Learning Basic concepts Tools

Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

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Page 1: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

Machine Learning

• Basic concepts

• Tools

Page 2: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

???

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Page 3: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

???

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probability

and then!??

prediction!

Confidence 75%

on Fridays:

But… why?

Page 4: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

ML: Basic Concepts

how to construct computer programs that automatically improve with experience

TASK: recognize handwritten words

Performance: % words correctly classified

Training data: a set of handwritten words, with given classification

SEITE 4

Page 5: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

ML: Basic Concepts

SEITE 5

Algorithms

Supervised (labelled by a supervisor)

Decision Trees, Decision Rules

Bayesian Classifiers

to which of a set of categories a new observation belongs

Unsupervised (finding interesting groups into data)

Clustering

Association rules

Page 6: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

ML: Basic Concepts

Algorithms

Supervised (labelled by a supervisor)

Decision Trees, Decision Rules

Bayesian Classifiers

to which of a set of categories a new observation belongs

Unsupervised (finding interesting groups into data)

Clustering

Association rules

SEITE 6

Page 7: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

ML: Basic Concepts

SEITE 7

Algorithms

Supervised (labelled by a supervisor)

Decision Trees, Decision Rules

Bayesian Classifiers

to which of a set of categories a new observation belongs

Unsupervised (finding interesting groups into data)

Clustering

Association rules

Page 8: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

ML: Basic Concepts

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Algorithms

Supervised (labelled by a supervisor)

Decision Trees, Decision Rules

Bayesian Classifiers

to which of a set of categories a new observation belongs

Unsupervised (finding interesting groups into data)

Clustering

Association rules

interesting relations between variables

Page 9: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

Machine learning in python

http://scikit-learn.org/stable/index.html

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xmllint

Page 10: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

Machine learning in Weka

http://www.cs.waikato.ac.nz/ml/weka/

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xmllint

Page 11: Machine Learning - data.wu.ac.at · ML: Basic Concepts SEITE 5 Algorithms Supervised (labelled by a supervisor) Decision Trees, Decision Rules Bayesian Classifiers to which of a set

Other tools

Matlab

R

Orange

RapidMiner

Quick tutorial:

http://de.slideshare.net/liorrokach

/introduction-to-machine-learning-

13809045

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