Search results
Results From The WOW.Com Content Network
Pattern search (also known as direct search, derivative-free search, or black-box search) is a family of numerical optimization methods that does not require a gradient. As a result, it can be used on functions that are not continuous or differentiable. One such pattern search method is "convergence" (see below), which is based on the theory of ...
On the other hand, black-box testing has been said to be "like a walk in a dark labyrinth without a flashlight." [ 11 ] Because they do not examine the source code, there are situations when a tester writes many test cases to check something that could have been tested by only one test case or leaves some parts of the program untested.
The term "black box" is used because the actual program being executed is not examined. In computing in general, a black box program is one where the user cannot see the inner workings (perhaps because it is a closed source program) or one which has no side effects and the function of which need not be examined, a routine suitable for re-use.
Derivative-free optimization (sometimes referred to as blackbox optimization) is a discipline in mathematical optimization that does not use derivative information in the classical sense to find optimal solutions: Sometimes information about the derivative of the objective function f is unavailable, unreliable or impractical to obtain.
Black Box Corporation is an IT company headquartered in Texas, United States. [1] The company provides technology assistance and consulting services to businesses in a variety of sectors including retail, transportation, government, education, and public safety. Black Box operates in 75 locations across 35 countries.
A black box is a flight-data recorders that collect information on communications involving pilots in cockpits and how the aircraft systems perform in-flight.
As its name implies, BlackBox Component Builder supports blackbox abstractions and reuse, in contrast to whitebox, as defined in the book Component Software by Szyperski. [6] [7] In 1993, it was released as Oberon/F [8] [9] [10] (for Oberon Framework) and was renamed to BlackBox Component Builder with release 1.3 end of the 1990s.
In academic discourse, the usage of the term “black box” dates back to at least 1963 with Mario Bunge's work on a black box theory in mathematics. [18]The term “black box,” as used throughout The Black Box Society by author and law professor, Frank Pasquale, is a dual metaphor for a recording device such as a data-monitoring system and for a system whose inner workings are secret or ...