Beam stack search

Beam stack search is a search algorithm often used in artificial intelligence, particularly in the context of search problems like those found in natural language processing, robotics, or game playing. It combines elements of breadth-first and depth-first search strategies while maintaining a focus on efficiency and effectiveness. ### Key Concepts: 1. **Beam Width**: The "beam" in beam search refers to a fixed number of the most promising nodes (or paths) that the algorithm keeps track of at each level of the search tree.