10.13. MatchingΒΆ

Q1:
 Avalanche
 When a single grain causes the cells to topple which then affects a substantial friction of the grid.
 Sand Pile Model
 A 2D cellular automaton where the state of each cell represents the slope of part of a sand pile.
 SelfOrganized Critically (SOC)
 The tendency of some systems to evolve toward, and stay in, a critical state.
 Signal
 Any quantity that varies in time.
 Ultimate Cause
 A deeper kind of explanation for a large avalanche.
 BoxCounting
 A way of determining the fractal dimension of a set S in a Euclidean space Rn.
 Fractal geometry
 Patterns have selfsimilarity, they are similar when compared to the copies of the whole.
 Holistic Model
 This model focuses more on similarities between systems and less interest in analogous parts.
 Noise
 It is a signal which contains many frequency components in the context of signal processing
 Pink Noise
 In this, lowfrequency components have more power than highfrequency components.
 Power Spectrum
 A function that shows the power of each frequency component.
 Proximate Cause
 The cause that is most immediately responsible for a large avalanche.
 Reductionist Model
 Describing a system by describing their interactions and parts.
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