[Grey-Walter] [lect] algunos links a artículos sobre auto-organización y emergencia

xabier at sindominio.net xabier at sindominio.net
Tue Nov 12 19:04:22 CET 2002


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J. P. Crutchfield, "The Calculi of Emergence: Computation, Dynamics, and
Induction" Physica D 75 (1994) 11-54.

ABSTRACT:
Defining structure and detecting the emergence of complexity in nature are
inherently subjective, though essential, scientific activities. Despite
the difficulties, these problems can be analyzed in terms of how
model-building observers infer from measurements the computational
capabilities embedded in nonlinear processes. An observer's notion of what
is ordered, what is random, and what is complex in its environment depends
directly on its computational resources: the amount of raw measurement
data, of memory, and of time available for estimation and inference. The
discovery of structure in an environment depends more critically and
subtlely, though, on how those resources are organized. The descriptive
power of the observer's chosen (or implicit) computational model class,
for example, can be an overwhelming determinant in finding regularity in
data.
This paper presents an overview of an inductive framework -- hierarchical
$\epsilon$-machine reconstruction -- in which the emergence of complexity
is associated with the innovation of new computational model classes.
Complexity metrics for detecting structure and quantifying emergence,
along with an analysis of the constraints on the dynamics of innovation,
are outlined. Illustrative examples are drawn from the onset of
unpredictability in nonlinear systems, finitary nondeterministic
processes, and cellular automata pattern recognition. They demonstrate how
finite inference resources drive the innovation of new structures and so
lead to the emergence of complexity.

LINK:
http://www.santafe.edu/projects/CompMech/papers/CalcEmergTitlePage.html

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John Collier (2002) SELF-ORGANISATION, INDIVIDUATION AND IDENTITY
ABSTRACT.
Self-organisation is a process by which larger scale order is formed in a
system through the promotion of fluctuations at a smaller scale via
processes inherent in the system dynamics, modulated by interactions
between the system and its surroundings. The self in self-organisation
presents certain problems: 1) What is the self that organises? 2) Why is
it a self? 3) What is it for a process to be inherent to the system
dynamics? 4) What does it mean for interactions with the surroundings to
modulate rather than determine or control? Self-organisation appears to
require
a sort of lifting oneself by the bootstraps without having even boots at
the beginning. Self-organisation thus appears to be an oxymoron, or at
least a misnomer.
LINK:
http://www.kli.ac.at/personal/collierpdf/SOIIF.PDF


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Artículos de Emmeche sobre emergencia en:
http://www.nbi.dk/~emmeche/p.emercau.html







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