Training Examples for EnjoySport

Sky	Temp	Humid	Wind	Water	Forecst	EnjoySpt
Sunny	Warm	Normal	Strong	Warm	Same	Yes
Sunny	Warm	High	Strong	Warm	Same	Yes
Rainy	Cold	High	Strong	Warm	Change	No
Sunny	Warm	High	Strong	Cool	Change	Yes

What is the general concept?

Representing Hypotheses

Many possible representations

Here, h is conjunction of constraints on attributes

Each constraint can be

• a specfic value (e.g., Water=Warm)
• don't care (e.g., ``Water=?'')
• no value allowed (e.g.,``Water=$\emptyset$'')

For example,

Sky	AirTemp	Humid	Wind	Water	Forecst
$\langle Sunny$	?	?	Strong	?	$Same \rangle$