A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦...
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Transcript of A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦...
![Page 1: A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦ association rule Created by researchers at the University.](https://reader036.fdocuments.net/reader036/viewer/2022081816/5697bfec1a28abf838cb85e6/html5/thumbnails/1.jpg)
Weka - Tutorial
![Page 2: A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦ association rule Created by researchers at the University.](https://reader036.fdocuments.net/reader036/viewer/2022081816/5697bfec1a28abf838cb85e6/html5/thumbnails/2.jpg)
A collection of open source ML algorithms◦ pre-processing◦ classifiers◦ clustering◦ association rule
Created by researchers at the University of Waikato in New Zealand
Java based
WEKA:: Introduction
![Page 3: A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦ association rule Created by researchers at the University.](https://reader036.fdocuments.net/reader036/viewer/2022081816/5697bfec1a28abf838cb85e6/html5/thumbnails/3.jpg)
Download software fromhttp://www.cs.waikato.ac.nz/ml/weka/downloading.html
◦ Several options for windows, mac or linux◦ X86 (for 32-bit processors), x64( for 64-bit)
WEKA:: Installation
![Page 4: A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦ association rule Created by researchers at the University.](https://reader036.fdocuments.net/reader036/viewer/2022081816/5697bfec1a28abf838cb85e6/html5/thumbnails/4.jpg)
WEKA:: Interface
![Page 5: A collection of open source ML algorithms ◦ pre-processing ◦ classifiers ◦ clustering ◦ association rule Created by researchers at the University.](https://reader036.fdocuments.net/reader036/viewer/2022081816/5697bfec1a28abf838cb85e6/html5/thumbnails/5.jpg)
Uses flat text files to describe the data Can work with a wide variety of data files
including its own “.arff” format and C4.5 file formats
Data can be imported from a file in various formats: ◦ ARFF, CSV, C4.5, binary
Data can also be read from a URL or from an SQL database (using JDBC)
WEKA:: Data format
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@relation heart-disease-simplified
@attribute age numeric@attribute sex { female, male}@attribute chest_pain_type { typ_angina, asympt, non_anginal, atyp_angina}@attribute cholesterol numeric@attribute exercise_induced_angina { no, yes}@attribute class { present, not_present}
@data63,male,typ_angina,233,no,not_present67,male,asympt,286,yes,present67,male,asympt,229,yes,present38,female,non_anginal,?,no,not_present
...
WEKA:: ARRF file format
A more thorough description is available here http://www.cs.waikato.ac.nz/~ml/weka/arff.html
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More in class Demonstration