MACHINE LEARNING

APPLICATION OF SUPERVISED LEARNING

ARTIFICIAL INTELLIGENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one is correct in A* search
A
f(n)=h(n)
B
f(n)=g(n)+h(n)
C
f(n)<=min(g(n), h(n))
D
h(n)<=c(n, a, n’)+h(n’)
Explanation: 

Detailed explanation-1: -A* Search Algorithm: A* search is the most commonly known form of best-first search. It uses heuristic function h(n), and cost to reach the node n from the start state g(n). It has combined features of UCS and greedy best-first search, by which it solve the problem efficiently.

Detailed explanation-2: -The A* algorithm uses a heuristic function to help decide which path to follow next. The heuristic function provides an estimate of the minimum cost between a given node and the target node.

Detailed explanation-3: -h is admissible: h(u) <= dist(u, t) (never overestimate) h is monotone: h(u) <= cost(u, v) + h(v) (triangle inequality) 25-Nov-2017

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