UL/FRI/VSP-RI/MUI/Vaje/2007-03-21

Weka

Weka je orodje za strojno učenje napisano v Javi.

• Weka_(machine_learning) na angleški Wikipediji
• Domača stran - Weka 3

Odločitveno drevo (C4.5)

           outlook
     sunny/|overcast\rainy
  humidity yes      windy
high/ \normal    false/\true
 no     yes         yes  no

Vhod v Weko

Opis domene v ARFF formatu: domena PlayTenis

% an xample of a knowledge domain in ARFF format
@relation playTenis

@attribute outlook {sunny, overcast, rainy}
@attribute temperature {hot, mild, cold}
@attribute humidity {high, normal}
@attribute windy {TRUE, FALSE}
@attribute play {yes, no}

@data
sunny,hot,high,FALSE,no
sunny,hot,high,TRUE,no
overcast,hot,high,FALSE,yes
rainy,mild,high,FALSE,yes
rainy,cool,normal,FALSE,yes
rainy,cool,normal,TRUE,no
overcast,cool,normal,TRUE,yes
sunny,mild,high,FALSE,no
sunny,cool,normal,FALSE,yes
...