20. Suppose you get a job where the boss is interested in localization of a robot that is carrying a camera around a factory. The boss has heard of variable elimination, rejection sampling, and particle filtering and wants to know which would be most suitable for this task. You must write a report for your boss (using proper English sentences), explaining which one of these technologies would be most suitable. For the two technologies that are not the most suitable, explain why you rejected them. For the one that is most suitable, explain what information is required by that technology to use it for localization:

(a) VE (i.e., exact inference as used in HMMs),

(b) rejection sampling, or

(c) particle filtering.