AskDefine | Define predictability

Dictionary Definition

predictability n : the quality of being predictable [ant: unpredictability]

User Contributed Dictionary



  1. The characteristic of being predictable.


The characteristic of being predictable

Extensive Definition

Predictability (also called banality) refers to the degree that a correct forecast of a system's state can be made either qualitatively or quantitatively. While the second law of thermodynamics can tell us about the equilibrium state that a system will evolve to, and steady states in dissipative systems can sometimes be predicted, there exists no general rule to predict the time evolution of systems far from equilibrium, etc. chaotic systems, if they do not approach some kind of equilibrium. Their predictability usually deteriorates with time. To quantify predictability, the rate of divergence of system trajectories in phase space can be measured (Kolmogorov-Sinai entropy, Lyapunov exponents).

Synonyms, Antonyms and Related Words

authenticity, authoritativeness, calculability, dependability, divinability, faithworthiness, firmness, foreknowableness, foreseeability, foretellableness, frequency curve, frequency distribution, game theory, invincibility, mathematical probability, operations research, probability theory, probable error, quantum mechanics, reliability, secureness, security, solidity, soundness, stability, standard deviation, statistical mechanics, statistical probability, statistics, staunchness, steadfastness, steadiness, substantiality, trustworthiness, uncertainty principle, unerringness, validity
Privacy Policy, About Us, Terms and Conditions, Contact Us
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2
Material from Wikipedia, Wiktionary, Dict
Valid HTML 4.01 Strict, Valid CSS Level 2.1