A* Algorithm in AI

The A* algorithm in AI is a popular pathfinding and graph traversal technique in AI. It aims to find the shortest path from a start node to a goal node by combining the strengths of Dijkstra's algorithm and Greedy Best-First-Search. A* uses a heuristic function `f(n) = g(n) + h(n)`, where `g(n)` represents the actual cost from the start node to node `n`, and `h(n)` estimates the cost from `n` to the goal. This heuristic guides the search towards the goal efficiently. A* is widely used in applications like robotics, games, and navigation systems due to its optimality and completeness.