BFS, DFS and UCS: A Beginner's Guide to Uninformed Search Algorithms

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Searching is a fundamental operation in computing, appearing in various forms such as database queries, array lookups, and AI decision-making. Three widely used uninformed search algorithms — Breadth First Search (BFS), Depth First Search (DFS), and Uniform Cost Search (UCS) — provide general-purpose approaches to tackling complex search problems. Every search requires a source, a starting point, and a defined target; the target must exist within the source for the search to succeed. While everyday searches like SQL queries are easy to use, the underlying implementations are considerably more complex. These algorithms are especially relevant in AI contexts, such as determining the best move in a chess game.

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