Definitions for dovetailing
This page provides all possible meanings and translations of the word dovetailing
The situation in which things are dovetailed.
Dovetailing in algorithm design, is a technique that interleaves different computations, performing them essentially simultaneously. Algorithms that use dovetailing are sometimes referred to as dovetailers. Consider a tree that potentially contains a path of infinite length: if a depth-first search is performed in this environment, the search may move down an infinite path and never return, potentially leaving part of the tree unexplored. However, if a breadth-first search is used, the existence of an infinite path is no longer a problem: each node is visited in a branching manner according to its distance from the root, so an infinite path will only impact the part of the search travelling down that path. We can regard this tree as analogous to a collection of programs; in this case, the depth-first approach corresponds to running one program at a time, moving to the next only when the current program has finished running. In the case where one of the programs runs for an infinite amount of time, this transition will never happen. The breadth-first approach of visiting each child on the same level of the tree corresponds to dovetailing, where a single step is performed for every program before moving to the next. Thus, progress is made in each program, regardless of the potential existence of a program of infinite runtime.
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