find the information gain for sunny branch in this example.

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find the information gain for sunny branch in this example.

A Simple Example
• Next step is to expand Sunny:
• G(Sunny, Temp)
• G(Sunny, Humidity)
●
• G(Sunny, Wind)
Sunny
[D1, D2,D8.D9.D11]
E(2+,3-)=0.971
[D1,D2,.... D14]
E(9+,5-)=0.94
Outlook
Overcast
[D3,D7,D12,D13]
E([4+,0-1)=0.0
YES
Rain
Strong
No
Wind
Weak
Yes
Transcribed Image Text:A Simple Example • Next step is to expand Sunny: • G(Sunny, Temp) • G(Sunny, Humidity) ● • G(Sunny, Wind) Sunny [D1, D2,D8.D9.D11] E(2+,3-)=0.971 [D1,D2,.... D14] E(9+,5-)=0.94 Outlook Overcast [D3,D7,D12,D13] E([4+,0-1)=0.0 YES Rain Strong No Wind Weak Yes
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