Recurrence
Encyclopedia
Recurrence and recurrent may refer to:
- Recurrence relationRecurrence relationIn mathematics, a recurrence relation is an equation that recursively defines a sequence, once one or more initial terms are given: each further term of the sequence is defined as a function of the preceding terms....
, an equation which defines a sequence recursively - Poincaré recurrence theoremPoincaré recurrence theoremIn mathematics, the Poincaré recurrence theorem states that certain systems will, after a sufficiently long time, return to a state very close to the initial state. The Poincaré recurrence time is the length of time elapsed until the recurrence. The result applies to physical systems in which...
, Henri Poincaré's theorem on dynamical systems - Recurrence plotRecurrence plotIn descriptive statistics and chaos theory, a recurrence plot is a plot showing, for a given moment in time, the times at which a phase space trajectory visits roughly the same area in the phase space...
, a statistical plot that shows a pattern that re-occurs - Recurrence period density entropyRecurrence period density entropyRecurrence period density entropy is a method, in the fields of dynamical systems, stochastic processes, and time series analysis, for determining the periodicity, or repetitiveness of a signal.- Overview :...
, an information-theoretic method for summarising the recurrence properties of a dynamical systems - Recurrent neural networkRecurrent neural networkA recurrent neural network is a class of neural network where connections between units form a directed cycle. This creates an internal state of the network which allows it to exhibit dynamic temporal behavior. Unlike feedforward neural networks, RNNs can use their internal memory to process...
, a special artificial neural network - Recurrent rotationRecurrent rotationRecurrent rotation refers to a group of songs still frequently aired on a contemporary hit radio station even several months or even years after the initial debut. It is also used to describe core songs in other radio formats as well...
, a term used in contemporary hit radio for frequently aired songs - Recurrence (album), a 2008 metalcore album by Vira
- Radial recurrent artery (anatomy)Radial recurrent arteryThe radial recurrent artery arises from the radial artery immediately below the elbow.It ascends between the branches of the radial nerve, lying on the Supinator and then between the Brachioradialis and Brachialis, supplying these muscles and the elbow-joint, and anastomosing with the terminal part...
– arising from the radial artery immediately below the elbow