Can you help to find Probability(word==Helmet|class==Sports)= ? ID Words in Document in class=Sports Training Set 1...
Can you help to find Probability(word==Helmet|class==Sports)= ?
|
ID |
Words in Document |
in class=Sports |
|
|
Training Set |
1 |
Baseball Helmet Fans Strike |
Yes |
|
2 |
Football Helmet Touchdown |
Yes |
|
|
3 |
Hoops |
Yes |
|
|
4 |
Motorcycle Helmet Light |
No |
|
|
5 |
Helmet Ski |
Yes |
|
|
Test Set |
6 |
Fans Helmet Helmet Ski |
? |
Pr(word==Helmet|class==Sports)= ?
Homework Answers
Different words when class = sports are
when ID = 1,2,3,5 (when values sports = Yes)
Words are,
Baseball, Helmet, Fans, Strike, Football, Helmet, Touchdown, Hoops, Helmet, Ski
Total words = 10
Count(Helmet) = 3
Thus, Pr(word==Helmet|class==Sports) = 3/10 = 0.3
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Can you help to find Probability(word==Helmet|class==Sports)=
?
ID
Words in Document
in class=Sports
Training Set
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