This preview shows page 1. Sign up to view the full content.
Unformatted text preview: ce, what is the vector w and the constant b? B2 (8 points): What is the final classifier produced. Express your answer in the original space, not the
transformed space. 27 Quiz 4, Problem 2: Bayesian Inference (50 points) Zombies once again threaten the town, but this time the healthy folks are
using science to help keep themselves on a brain-free diet! Z 0.1 ZR
1 0.99 R RT
0 0. 01
1 0. 98 When someone first becomes a zombie, their zombieness is latent for a
while, as the transformation slowly progresses, but successful isolation at
this stage is critical for avoiding new zombie infections. T New zombies quickly begin to produce a protein R that one can easily test
for. One percent of infected individuals do not produce protein R (or
perhaps just not yet), while protein R has been found in two percent of
subjects who turned out not to have turned into zombies later,.
The test is 98% sensitive to the presence of the protein, and 99% specific to it, as shown in the Bayes Net on the left. A (9 points) To make things a little simpler for the general population to understand, you want to give information in ter...
View Full Document
This document was uploaded on 03/17/2014 for the course EECS 6.034 at MIT.
- Fall '10
- Artificial Intelligence