Which function will select the lowest expansion node at first for evaluation?a. Greedy best-first searchb. Depth-first searchc. Breadth-first searchd. Both A and B
Question
Which function will select the lowest expansion node at first for evaluation?a. Greedy best-first searchb. Depth-first searchc. Breadth-first searchd. Both A and B
Solution
The function that will select the lowest expansion node at first for evaluation is a. Greedy best-first search.
Here's why:
a. Greedy best-first search: This algorithm selects the node that appears to lead most quickly to the solution. It's "greedy" because it makes the choice that seems best at the moment. It evaluates nodes based on their heuristic value and selects the node with the least value (i.e., the closest to the goal).
b. Depth-first search: This algorithm always expands the deepest node in the current frontier of the search tree. It doesn't necessarily select the lowest expansion node first.
c. Breadth-first search: This algorithm expands the shallowest node first. It doesn't necessarily select the lowest expansion node first.
d. Both A and B: As explained above, only Greedy best-first search selects the lowest expansion node first for evaluation. Depth-first search does not. So, this option is incorrect.
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