A. Ryan

Publications29
h-index8
Citations573
Highly Influential Citations24
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  • Publications
  • Influence
An information-theoretic primer on complexity, self-organization, and emergence
TLDR
We propose a set of concepts, together with their possible information-theoretic interpretations, which can be used to facilitate the Complex Systems Science discourse. Expand
  • 191
  • 9
An information-theoretic primer on complexity, self-organization, and emergence
TLDR
We propose a set of concepts, together with their information-theoretic interpretations, which can be used as a dictionary of Complex Systems Science discourse. Expand
  • 96
  • 6
  • PDF
Emergence is coupled to scope, not level
  • A. Ryan
  • Sociology, Computer Science
  • Complex.
  • 6 September 2006
TLDR
We introduce a normative definition of emergent properties and emergence that makes sense of previous descriptive definitions of emergence and identifies fundamental limits to our ability to capture emergence. Expand
  • 94
  • 5
  • PDF
Acute intramural hematoma of the aorta as a cause of positive fluorodeoxyglucose positron emission tomography/computed tomography.
  • 5
  • 1
Operationalising Adaptive Campaigning Topics: C2 Concepts, Theory and Policy, Networks and Networking
TLDR
We present a methodology that is a first step towards achieving this aim, based on the notion of an explicit, shared, Causal and Influence Network (C&IN). Expand
  • 7
  • 1
THE ART OF DESIGN: A Design Methodology
[ILLUSTRATION OMITTED] It is well known that when you do anything, unless you understand its actual circumstances, its nature and its relations to other things, you will not know the laws governing… Expand
  • 50
  • 1
A Framework for Systemic Design
As designers move upstream from traditional product and service design to engage with challenges characterised by complexity, uniqueness, value conflict, and ambiguity over objectives, they have… Expand
  • 14
  • 1
  • PDF
Acute intramural hematoma of the aorta as a cause of positive FDG PET/CT.
Type A acute intramural hematoma (IMH) of the ascending aorta is defined as hemorrhage in the aortic wall in the absence of intimal disruption. Proximity to the adventitia may explain the higher… Expand
  • 21
Use of Long-Term Monitoring Data to Evaluate Benzene, MTBE, and TBA Plume Behavior in Groundwater at Retail Gasoline Sites
AbstractLong-term groundwater monitoring data for 48 retail gasoline sites were analyzed to define the characteristics of affected groundwater plumes containing benzene, methyl tert-butyl ether… Expand
  • 18
  • PDF
Emergence is coupled to scope, not level: Research Articles
  • A. Ryan
  • Computer Science
  • 1 November 2007
TLDR
We find that emergent properties are determined by the relationship between the scope of macrostate and microstate descriptions, which makes sense of previous descriptive definitions of emergence. Expand
  • 6