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ALIFE
2007
13 years 4 months ago
The Localization Hypothesis and Machines
In a recent article in Artificial Life, Chu and Ho suggested that Rosen’s central result about the simulability of living systems might be flawed. This argument was later declare...
Dominique Chu, Weng Kin Ho
ALIFE
2007
13 years 4 months ago
A Living System Must Have Noncomputable Models
Chu and Ho’s recent paper in Artificial Life is riddled with errors. In particular, they use a wrong definition of Robert Rosen’s mechanism. This renders their “critical asse...
A. H. Louie
ALIFE
2007
13 years 4 months ago
A Synthetic Vision System Using Directionally Selective Motion Detectors to Recognize Collision
: Reliably recognizing objects approaching on a collision course is extremely important. In this paper, a synthetic vision system is proposed to tackle the problem of collision rec...
Shigang Yue, F. Claire Rind
ALIFE
2007
13 years 4 months ago
Evolving Virtual Creatures and Catapults
We present a system that can evolve the morphology and the controller of virtual walking and block-throwing creatures (catapults) using a genetic algorithm. The system is based on ...
Nicolas Chaumont, Richard Egli, Christoph Adami
ALIFE
2008
13 years 4 months ago
A Model of the Quorum Sensing System in Vibrio fischeri Using P Systems
Quorum sensing is a cell density dependent gene regulation system that allows an entire population of bacterial cells to communicate in order to regulate the expression of certain ...
Francisco José Romero-Campero, Mario J. P&e...
ALIFE
2008
13 years 4 months ago
The Embodiment of Cockroach Aggregation Behavior in a Group of Micro-robots
We report the faithful reproduction of the self-organized aggregation behavior of the German cockroach Blattella germanica with a group of robots. We describe the implementation of...
Simon Garnier, Christian Jost, Jacques Gautrais, M...
ALIFE
2008
13 years 4 months ago
Natural Selection in Relation to Complexity
, reproductive value, soft selectionAbstract Structural complexity characterizes our representations of dissipative structures. As a mechanistic concept, when referred to natural s...
Stanley N. Salthe
ALIFE
2008
13 years 4 months ago
The Nature of Words in Human Protolanguages: It's Not a Holophrastic-Atomic Meanings Dichotomy
There is an ongoing debate as to whether the words in early pre-syntactic forms of human language had simple atomic meanings like modern words [4, 5], or whether they were holophr...
Mike Dowman
ALIFE
2008
13 years 4 months ago
Evolution and Complexity: The Double-Edged Sword
We attempt to provide a comprehensive answer to the question of whether, and when, an arrow of complexity emerges in Darwinian evolution. We note that this expression can be interp...
Thomas Miconi