A Star

A* (pronounced "A-star") is a graph traversal and pathfinding algorithm that is used in many fields of computer science due to its completeness, optimality, and optimal efficiency. Given a weighted graph, a source node and a goal node, the algorithm finds the shortest path (with respect to the given weights) from source to goal. One major practical drawback is its O ( b d ) {\displaystyle O(b^{d})} space complexity where d is the depth of the shallowest solution (the length of the shortest path from the source node to any given goal node) and b is the branching factor (the maximum number of successors for any given state), as it stores all generated nodes in memory. Thus, in practical travel-routing systems, it is generally outperformed by algorithms that can pre-process the graph to attain better performance, as well as by memory-bounded approaches; however, A* is still the best solution in many cases. Peter Hart, Nils Nilsson and Bertram Raphael of Stanford Research Institute (now SRI International) first published the algorithm in 1968. It can be seen as an extension of Dijkstra's algorithm. A* achieves better performance by using heuristics to guide its search. Compared to Dijkstra's algorithm, the A* algorithm only finds the shortest path from a specified source to a specified goal, and not the shortest-path tree from a specified source to all possible goals. This is a necessary trade-off for using a specific-goal-directed heuristic. For Dijkstra's algorithm, since the entire shortest-path tree is generated, every node is a goal, and there can be no specific-goal-directed heuristic.

Don't Say U Love Me - 2024-08-09T00:00:00.000000Z

Gospel of Grime - 2024-04-19T00:00:00.000000Z

Transition - 2023-07-09T00:00:00.000000Z

Kings Messenger - 2021-09-02T00:00:00.000000Z

Born & Raised - 2020-03-06T00:00:00.000000Z

Deep In The Streets - 2019-09-09T00:00:00.000000Z

Moment Of Clarity - 2018-10-26T00:00:00.000000Z

The Wave - 2018-08-17T00:00:00.000000Z

R.I.C.H - 2017-08-25T00:00:00.000000Z

Zero Not Equal to One - 2017-07-07T00:00:00.000000Z

Reflections - 2016-07-01T00:00:00.000000Z

Airborne - 2015-05-18T00:00:00.000000Z

Revolutionary - 2015-03-30T00:00:00.000000Z

House Heroes - 2015-02-19T00:00:00.000000Z

Live in Concert - 2014-06-10T00:00:00.000000Z

Scrapbook II - 2014-04-13T00:00:00.000000Z

Return of the Shooter - 1970-01-01T00:00:00.000000Z

The Last One Standing - 2013-06-03T00:00:00.000000Z

Volume 1: Urban Worship - 1970-01-01T00:00:00.000000Z

So It Begins - 2011-06-28T00:00:00.000000Z

The Addiction - 2010-01-01T00:00:00.000000Z

Money Talks. Know Wa Time It Iz : Part 5 - 2009-12-12T00:00:00.000000Z

Know What Time It Iz - 2009-02-12T00:00:00.000000Z

Money On My Mind 3 - 2009-01-16T00:00:00.000000Z

We Go Hard - 1970-01-01T00:00:00.000000Z