Question

Bayesian networks uses ____

(a) directed cyclic graph

(b) directed acyclic graph

(c) undirected cyclic graph

(d) undirected acyclic graph

The question was asked by my school teacher while I was bunking the class.

I need to ask this question from Techniques topic in portion Cognitive Techniques of Cognitive Radio

Answer 1

Correct choice is (b) directed acyclic graph

To elaborate: A Bayesian network is a probabilistic graphical model where a group of variables and their conditional dependencies are represented using directed acyclic graph. Directed acyclic graph is a directed graph and does not have directed cycles.