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Iterative deepening A* (IDA*) is a graph traversal and path search algorithm that can find the shortest path between a designated start node and any member of a set of goal nodes in a weighted graph. It is a variant of iterative deepening depth-first search that borrows the idea to use a heuristic function to conservatively estimate the ...
Iterative deepening prevents this loop and will reach the following nodes on the following depths, assuming it proceeds left-to-right as above: 0: A; 1: A, B, C, E (Iterative deepening has now seen C, when a conventional depth-first search did not.) 2: A, B, D, F, C, G, E, F (It still sees C, but that it came later.
The Harpy Speech Recognition System (introduced in a 1976 dissertation [6]) was the first use of what would become known as beam search. [7] While the procedure was originally referred to as the "locus model of search", the term "beam search" was already in use by 1977.
For general graphs, replacing the stack of the iterative depth-first search implementation with a queue would also produce a breadth-first search algorithm, although a somewhat nonstandard one. [7] Another possible implementation of iterative depth-first search uses a stack of iterators of the list of neighbors of a node, instead of a stack of ...
State space search is a process used in the field of computer science, including artificial intelligence (AI), in which successive configurations or states of an instance are considered, with the intention of finding a goal state with the desired property.
Iterative lengthening search - referred to in Iterative deepening depth-first search; Jump string - somehow related to jump tables; Lasserre Hierarchy - hierarchy of semidefinite programming relaxations; March Algorithm - A class of algorithms used to test a computing device's memory. It consists of a sequence of operations applied to each ...
Alpha–beta search can be made even faster by considering only a narrow search window (generally determined by guesswork based on experience). This is known as an aspiration window . In the extreme case, the search is performed with alpha and beta equal; a technique known as zero-window search , null-window search , or scout search .
The architecture is validated primarily through the implementation of an executable architecture baseline. This is a partial implementation of the system which includes the core most architecturally significant components. It is built in a series of small time-boxed iterations.