Assessment due date is $2024-09-11,23$:$59$ IST

Last recorded submission : Assessment not submitted

$1$ point

Within a logical$-$agent approach, agents almost never have access to the whole truth about their environment. Agents must therefore act under uncertainty. Identify the probable reason $/$ reasons of uncertainty.

A$.$ Incompleteness in the agent's understanding of the properties of the environment.

B$.$ Options, choices, and preferences of the properties of the environment.

C$.$ Use of formal language for representing and reasoning about the environment.

D$.$ Incorrectness in the agent's understanding of the properties of the environment.

$1$ point

Belief networks is a powerful tool for representing and reasoning with uncertain knowledge. It is a graph in which the following holds:

A$.$ A set of random variables makes up the nodes of the network.

B$.$ Some nodes have a conditional probability table that quantifies the effects that the parent nodes have on the node.

C$.$ It is a directed acyclic graph.

D$.$ A set of directed links or arrows connects pairs of nodes.

$1$ point

Modelling with Bayesian Networks require an assumption: There are no direct dependencies in the system being modelled which are not already explicitly shown via arcs. This is referred to as the $\_\_\_\_\_\_\_\_\_\_\_.$

A$.$ Bayesian Dependency

B$.$ Markov Property

C$.$ Bayesian Property

D$.$ Arc Consistency

$1$ point

$\_\_\_\_\_\_\_\_\_\_$ provides ways and means of weighing up the desirability of goals and the likelihood of achieving them.

A$.$ Decision Theory

B$.$ Utility Theory

C$.$ Probability Theory

D$.$ Bayesian Networks

$1$ point

Find the probability that a message contains the word free, given that it is spam.

A$.0\mathrm{.}266$

B$.0\mathrm{.}752$

C$.0\mathrm{.}737$

D$.0\mathrm{.}978$

$1$ point

What is the probability that a message is spam, given that it contains the word free?

A$.0\mathrm{.}266$

B$.0\mathrm{.}752$

C$.0\mathrm{.}737$

D$.0\mathrm{.}978$

$1$ point

Find the probability that a message is spam, given that it contains the word text $($or txt$).$

A$.0\mathrm{.}266$

B$.0\mathrm{.}752$

C$.0\mathrm{.}737$

D$.0\mathrm{.}978$

$1$ point

Find the expected utility of Review; EU$($Review$).$

A$.1500$

B$.800$

C$.1000$

D$.750$

$1$ point

Find the expected utility of Sleep; EU$($Sleep$).$

A$.1500$

B$.800$

C$.1000$

D$.750$

$1$ point

What is the maximum expected utility, Maximum EU$(\{\})?$

A$.1500$

B$.800$

C$.1000$

D$.750$

SUBMIT