Download presentation
Presentation is loading. Please wait.
Published byMalcolm McKenzie Modified over 9 years ago
2
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
3
Download software from http://www.cs.waikato.ac.nz/ml/weka/downlo ading.html ◦ Several options for windows, mac or linux ◦ X86 (for 32-bit processors), x64( for 64-bit)
4
WEKA:: Interface
5
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)
6
@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} @data 63,male,typ_angina,233,no,not_present 67,male,asympt,286,yes,present 67,male,asympt,229,yes,present 38,female,non_anginal,?,no,not_present... A more thorough description is available here http://www.cs.waikato.ac.nz/~ml/weka/ar ff.html http://www.cs.waikato.ac.nz/~ml/weka/ar ff.html
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.