graph-search algorithm

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• A* search algorithm — In computer science, A* (pronounced A star ) is a best first, graph search algorithm that finds the least cost path from a given initial node to one goal node (out of one or more possible goals). It uses a distance plus cost heuristic function… …   Wikipedia

• B* search algorithm — In computer science, B* (pronounced B star ) is a best first, graph search algorithm that finds the least cost path from a given initial node to one goal node (out of one or more possible goals). First published by Hans Berliner in 1979, it is… …   Wikipedia

• Search algorithm — In computer science, a search algorithm, broadly speaking, is an algorithm that takes a problem as input and returns a solution to the problem, usually after evaluating a number of possible solutions. Most of the algorithms studied by computer… …   Wikipedia

• Algorithm — Flow chart of an algorithm (Euclid s algorithm) for calculating the greatest common divisor (g.c.d.) of two numbers a and b in locations named A and B. The algorithm proceeds by successive subtractions in two loops: IF the test B ≤ A yields yes… …   Wikipedia

• Graph coloring — A proper vertex coloring of the Petersen graph with 3 colors, the minimum number possible. In graph theory, graph coloring is a special case of graph labeling; it is an assignment of labels traditionally called colors to elements of a graph… …   Wikipedia

• Dijkstra's algorithm — Not to be confused with Dykstra s projection algorithm. Dijkstra s algorithm Dijkstra s algorithm runtime Class Search algorithm Data structure Graph Worst case performance …   Wikipedia

• Breadth-first search — Infobox Algorithm class=Search Algorithm Order in which the nodes are expanded data=Graph time=O(|V|+|E|) = O(b^d) space=O(|V|+|E|) = O(b^d) optimal=yes (for unweighted graphs) complete=yesIn graph theory, breadth first search (BFS) is a graph… …   Wikipedia

• Bidirectional search — is a graph search algorithm that runs two simultaneous searches: one forward from the initial state, and one backward from the goal, and stopping when the two meet in the middle. The reason for this approach is that each of the two searches has… …   Wikipedia

• Graph theory — In mathematics and computer science, graph theory is the study of graphs : mathematical structures used to model pairwise relations between objects from a certain collection. A graph in this context refers to a collection of vertices or nodes and …   Wikipedia

• Graph (data structure) — In computer science, a graph is a kind of data structure, specifically an abstract data type (ADT), that consists of a set of nodes (also called vertices) and a set of edges that establish relationships (connections) between the nodes. The graph… …   Wikipedia

• Search engine technology — Modern web search engines are complex software systems using the technology that has evolved over the years. The largest search engines such as Google and Yahoo! utilize tens or hundreds of thousands of computers to process billions of web pages… …   Wikipedia