- 行业: Technology
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The National Institute of Standards and Technology (NIST) — known between 1901 and 1988 as the National Bureau of Standards (NBS) — is a measurement standards laboratory and a non-regulatory agency of the United States Department of Commerce. The institute's official mission is to promote U.S. ...
Typically, a solution to a relaxation of an optimization problem.
Industry:Computer science
Use a short list or array of hash tables to implement a hash table with aging to expire items. To expire items, add a new table at the head of the list and drop the oldest table, along with its contents. To find an item, search all the tables.
Industry:Computer science
Using a fixed dictionary, encode words in text with strings having many repeated characters, typically an asterisk or "star" (*).
Industry:Computer science
Using a randomly selected sample of the data to help solve a problem on the whole data.
Industry:Computer science
Usually a two-dimensional organization of simple finite state machines whose next state depends on their own state and the states of their eight closest neighbors. In general the machines may be arranged in meshes of higher or lower dimension, have larger neighborhoods, or be arbitrarily complex processors.
Conway's game of Life is probably the most well known instance of a cellular automaton.
Industry:Computer science
When a collision resolution scheme spreads out entries in a hash table.
Industry:Computer science
When rebalancing a search tree is independent of updating the tree.
Industry:Computer science
When the asymptotic complexity of an algorithm exactly matches the theoretically proved asymptotic complexity of the corresponding problem. Informally, when an algorithm solves a problem at the theoretical minimum.
Industry:Computer science
When the execution time of a computation, m(n), is no more than a polynomial function of the problem size, n. More formally m(n) = O(n<sup>k</sup>) where k is a constant.
Industry:Computer science
When the key of every node of a binary tree is larger than the key of its left child and smaller than its right child. A binary tree which has this property is a binary search tree.
Industry:Computer science
