An optimisation of the ref="module.php?name=Lexikon&file=search&eid=1&query=best first search">best first search graph search ref="module.php?name=Lexikon&file=search&eid=1&query=algorithm">algorithm where only a predetermined number of paths are kept as candidates. The number of paths is the "width of the beam". If more paths than this are generated, the worst paths are discarded. This reduces the space requirements of best first search.

In addition suitable contents:
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