Which one of the following is not an informed search technique?

To determine which search technique is not informed, we need to understand the difference between informed and uninformed search methods.

Informed search techniques use heuristic information to guide the search toward the goal more efficiently. Uninformed search techniques, on the other hand, explore the search space without any additional information about the goal.

Option A: Hill climbing search

Step 1: Hill climbing search evaluates the current state and moves to a neighboring state that improves the heuristic value. Step 2: It uses a heuristic function to decide the next move. Step 3: Since it relies on heuristic information, it is classified as an informed search technique.

Option B: Best first search

Step 1: Best first search selects the next node to expand based on a heuristic estimate of the distance to the goal. Step 2: It prioritizes nodes that appear closer to the goal. Step 3: This use of heuristic information makes it an informed search technique.

Option C: A* search

Step 1: A* search uses a function f(n) = g(n) + h(n), where g(n) is the cost from the start node to node n, and h(n) is the heuristic estimate from n to the goal. Step 2: It combines actual path cost and heuristic information. Step 3: This integration makes A* an informed search technique.

Option D: Depth first search

Step 1: Depth first search explores as far as possible along each branch before backtracking. Step 2: It does not use any heuristic information to guide the search. Step 3: Since it lacks heuristic guidance, it is an uninformed search technique.

Therefore, the search technique that is not informed is Depth first search.

हिन्दी उत्तर:

सही उत्तर गहराई प्रथम खोज है, क्योंकि यह एक अनिर्दिष्ट खोज तकनीक है जो लक्ष्य तक पहुँचने के लिए कोई बूझ नहीं उपयोग करती है।