IDS Search Algorithm

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What is the time complexity of the Bidirectional Search algorithm?

O(2^bd)

O(bd/2) (correct)

O(b^d)

O(bd)

Which of the following is a characteristic of the IDS algorithm?

It does not generate nodes at depth d+1 (correct)

It is a type of local search

It generates nodes at depth d+1

It is a type of heuristic search

What is the space complexity of the IDS algorithm?

O(b^d)

O(bd) (correct)

O(log bd)

O(d)

How does the number of nodes generated by IDS compare to BFS for b=10 and d=5?

IDS generates fewer nodes than BFS Signup and view all the answers

What is the main advantage of IDS over BFS?

IDS is faster than BFS Signup and view all the answers

What is the optimality of the IDS algorithm?

YES, if path cost is a non-decreasing function of the depth of the node Signup and view all the answers

What is the time complexity of the number of nodes in memory?

O(bm) Signup and view all the answers

What is the optimal strategy for searching?

Uniform Cost Search Signup and view all the answers

Why may DFS not always give an optimal solution?

Because it expands the deepest node first Signup and view all the answers

What is the characteristic of Uniform Cost Search?

It only cares about the total cost Signup and view all the answers

What is the condition for Uniform Cost Search to be complete and optimal?

If the cost of each step exceeds some positive bound ε Signup and view all the answers

How does Uniform Cost Search queue nodes?

By the total cost from the root Signup and view all the answers

What is the main advantage of Iterative Deepening Search over Breadth-First Search?

Less memory usage Signup and view all the answers

What is the time complexity of Iterative Deepening Search?

Costly due to repeated generation of states Signup and view all the answers

How does Iterative Deepening Search achieve its efficiency?

By redoing some computations again and again Signup and view all the answers

What is the completeness of Iterative Deepening Search?

YES (no infinite paths) Signup and view all the answers

How does the number of nodes generated in Iterative Deepening Search change with depth?

According to the formula: d.b + (d-1).b2 + (d-2).b3 + ………………..+1 Signup and view all the answers

What is the main difference between Iterative Deepening Search and Breadth-First Search?

Node generation strategy Signup and view all the answers