How does p(catch,toothache,cavity) have 7 entries.... why is he subtracting that 1 ? He did something similar to say he reduced 32 to 10 instead of 12 by subtracting 1 from p(catch,toothache,cavity) and 1 from p(weather). What exactly does he mean by parameters ?
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Clear and simple, thanks.
How does p(catch,toothache,cavity) have 7 entries.... why is he subtracting that 1 ?
He did something similar to say he reduced 32 to 10 instead of 12 by subtracting 1 from p(catch,toothache,cavity) and 1 from p(weather). What exactly does he mean by parameters ?
Sum of all probabilities is 1. So if we know 7 parameters, the last one is simply 1 minus the sum of seven.
What do we exactly mean by the term "parameter"?
Its value of the probability : say P(cavity). How many such values we need to maintain to have overall idea about distribution.
How values of join prob
Becomes 32 here ..pls help me to calculate.
By Multiplying:
Weather has 4 values and toothache, cache , cavity has 2 values each (i.e. true or false)
Therefore
4×2×2×2=32
@@KnowledgeofEverything How the weather has 4 values?
@@rajat_enzyme Its mentioned in the previous video.
@@rajat_enzyme watch previous video weather is 4 (sunny, cloudy, rainy, cold)