heuristic - ορισμός. Τι είναι το heuristic
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Τι (ποιος) είναι heuristic - ορισμός

PROBLEM-SOLVING METHOD THAT IS SUFFICIENT FOR QUICK, SHORT-TERM SOLUTIONS/APPROXIMATIONS
Heuristics; Hueristic; Heuristo; HEURISTIC; Heurisitc; Heuristically; Huristic; Heuristic Classification; Heuristics in legal decision-making; Formal models of heuristics; Heuristic device; Artificial intelligence heuristics

heuristic         
1.
A heuristic method of learning involves discovery and problem-solving, using reasoning and past experience. (TECHNICAL)
ADJ
2.
A heuristic computer program uses rules based on previous experience in order to solve a problem, rather than using a mathematical procedure. (COMPUTING)
ADJ
see also algorithm
Heuristic         
·adj Serving to discover or find out.
heuristic         
[?hj?(?)'r?st?k]
¦ adjective
1. enabling a person to discover or learn something for themselves.
2. Computing proceeding to a solution by trial and error or by rules that are only loosely defined.
¦ noun a heuristic process or method.
?(heuristics) [usu. treated as sing.] the study and use of heuristic techniques.
Derivatives
heuristically adverb
Origin
C19: formed irregularly from Gk heuriskein 'to find'.

Βικιπαίδεια

Heuristic

Heuristic (; from Ancient Greek εὑρίσκω (heurískō) 'I find, discover'), or heuristic technique, is any approach to problem solving or self-discovery that employs a practical method that is not guaranteed to be optimal, perfect, or rational, but is nevertheless sufficient for reaching an immediate, short-term goal or approximation. Where finding an optimal solution is impossible or impractical, heuristic methods can be used to speed up the process of finding a satisfactory solution. Heuristics can be mental shortcuts that ease the cognitive load of making a decision.

Examples that employ heuristics include using trial and error, a rule of thumb or an educated guess.

Heuristics are the strategies derived from previous experiences with similar problems. These strategies depend on using readily accessible, though loosely applicable, information to control problem solving in human beings, machines and abstract issues. When an individual applies a heuristic in practice, it generally performs as expected. However it can alternatively create systematic errors.

The most fundamental heuristic is trial and error, which can be used in everything from matching nuts and bolts to finding the values of variables in algebra problems. In mathematics, some common heuristics involve the use of visual representations, additional assumptions, forward/backward reasoning and simplification. Here are a few commonly used heuristics from George Pólya's 1945 book, How to Solve It:

  • When experiencing a difficulty in understanding a problem, draw the architecture from all directions e.g. top-view, side-view, front-view.
  • If you can't find a solution, try assuming that you have a solution and seeing what you can derive from that ("working backward"). AKA "what shape would it have" aka system-requirements.
  • If the problem is abstract, try examining a concrete example.
  • Try solving a more general problem first (the "inventor's paradox": the more ambitious plan may have more chances of success).

This is because only the general problem can provide to a specific problem—a context from which to draw meaning.

In psychology, heuristics are simple, efficient rules, either learned or inculcated by evolutionary processes. These psychological heuristics have been proposed to explain how people make decisions, come to judgements, and solve problems. These rules typically come into play when people face complex problems or incomplete information. Researchers employ various methods to test whether people use these rules. The rules have been shown to work well under most circumstances, but in certain cases can lead to systematic errors or cognitive biases.

Παραδείγματα από το σώμα κειμένου για heuristic
1. But with a subject matter so large, a latex mask of a Katrina house may have the uncanny ability to breathe three–dimensional life into the disaster and become a heuristic vessel to truly convey the terrible fate of New Orleans.