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SOCNET  July 2009

SOCNET July 2009

Subject:

today's gleanings from COmplexity Digest

From:

Barry Wellman <[log in to unmask]>

Reply-To:

Barry Wellman <[log in to unmask]>

Date:

Fri, 3 Jul 2009 18:03:12 -0400

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (147 lines)

*****  To join INSNA, visit http://www.insna.org  *****

 Happy Canada Day Weekend!

 Barry Wellman
 _______________________________________________________________________

  S.D. Clark Professor of Sociology, FRSC               NetLab Director
  Department of Sociology                  725 Spadina Avenue, Room 388
  University of Toronto   Toronto Canada M5S 2J4   twitter:barrywellman
  http://www.chass.utoronto.ca/~wellman             fax:+1-416-978-3963
  Updating history:      http://chass.utoronto.ca/oldnew/cybertimes.php
 _______________________________________________________________________

A Principal Component Analysis of 39 Scientific Impact Measures ,
PLoS ONE

Excerpt: The impact of scientific publications has traditionally been
expressed in terms of citation counts [...] a variety of new impact
measures has been proposed on the basis of social network analysis and
usage log data.  [...] We performed a principal component analysis of the
rankings produced by 39 existing and proposed measures of scholarly impact
[...] some measures are more suitable than others. The commonly used
citation Impact Factor is not positioned at the core of this construct,
but at its periphery, and should thus be used with caution.

* [2] A Principal Component Analysis of 39 Scientific Impact Measures,
Bollen J , Van de Sompel H , Hagberg A , Chute R, June 29, 2009, DOI:
10.1371/journal.pone.0006022, PLoS ONE 4(6)

[2] http://dx.doi.org/10.1371/journal.pone.0006022

________________________________________________________________

08. Urban chaos and perplexing dynamics of urbanization , Letters in
Spatial and Resource Sciences

Abstract: A city with fractal structure used to be thought of as a kind of
spatial chaotic attractor. Several chaotic attractors indeed can be found
by simulating urbanization dynamics through numerical iterations.
However, the results lend little support to the suggestion that real
cities are chaotic systems. The rural-urban population interaction model
does not display chaotic behavior in normal state, but chaos will happen
only if the parameter values of the model deviate from the reality.
Accordingly, whether or not complex urban systems are chaotic is posed as
a pending question.

* [18] Urban chaos and perplexing dynamics of urbanization, Yanguang Chen,
2009/06/01, DOI: 10.1007/s12076-009-0026-8, Letters in Spatial and
Resource Sciences, available online Friday, June 05, 2009

[18] http://dx.doi.org/10.1007/s12076-009-0026-8


_________________________________________________________________

08.01. Can Chaos Theory Explain Complexity In Urban Fabric?
Applications in
Traditional Muslim Settlements , Nexus Network Journal

Abstract: The present work is a limited analysis of the traditional urban
fabric of Muslim cities in the light of this theory. Chaos theory provides
better instruments for the analysis and understanding of the traditional
urban fabric in old Muslim cities that have, paradoxically, long been
considered as lacking order and thus �chaotic� in the pejorative
sense! Beyond the analysis, our study also aims at providing a fresh
approach to the built environment that shifts the architectural and
planning professions from the traditional design and planning approach to
a self-generating process that would function and develop without need for
intervention.

* [20] Can Chaos Theory Explain Complexity In Urban Fabric?  Applications
in Traditional Muslim Settlements, Mustapha Ben Hamouche, 2009/06/01, DOI:
10.1007/s00004-008-0088-8, Nexus Network Journal, Volume 11, Number 2 *

[20] http://dx.doi.org/10.1007/s00004-008-0088-8

________________________________________________________________

12. The Structure of Critical Care Transfer Networks , Medical Care

Excerpt: Critical care transfers are common, and traverse an informal but
structured network. The centrality of a hospital is associated with
increased capability in delivery of services, suggesting that existing
transfers generally direct patients toward better resourced hospitals.
Studies of this network promise further improvements in patient outcomes
and efficiency of care.

* [25] The Structure of Critical Care Transfer Networks, Iwashyna,
Theodore J. MD, PhD; Christie, Jason D. MD, MSCE; Moody, James PhD; Kahn,
Jeremy M. MD, MSc; Asch, David A. MD, MBA, 2009/07, DOI:
10.1097/MLR.0b013e318197b1f5, Medical Care Volume 47 - Issue 7 - pp
787-793 [25]
http://dx.doi.org/10.1097/MLR.0b013e318197b1f5

_______________________________________________________________

13.02. The Alliance Hypothesis for Human Friendship , PLoS ONE

Excerpt: (...) We use game theory to identify computations about friends
that can increase performance in multi-agent conflicts. This analysis
suggests that people would benefit from: 1) ranking friends, 2) hiding
friend- ranking, and 3) ranking friends according to their own position in
partners' rankings.

* [28] The Alliance Hypothesis for Human Friendship, Peter DeScioli ,
Robert Kurzban, June 3, 2009, DOI: 10.1371/journal.pone.0005802, PLoS ONE
4(6)
http://dx.doi.org/10.1371/journal.pone.0005802
_________________________________________________________________

15. Tools of the Trade: A Survey of Various Agent Based Modeling Platforms
, Journal of Artificial Societies and Social Simulation

Excerpt: Agent Based Modeling (ABM) toolkits are as diverse as the
community of people who use them. (...) using this paper, one will be able
to choose a toolkit that already exists and that may be built especially
for one's particular domain and specialized needs.

* [32] Tools of the Trade: A Survey of Various Agent Based Modeling,
Cynthia Nikolai , Gregory Madey, 31-Mar-2009, Journal of Artificial
Societies and Social Simulation vol. 12, no. 2 2 [32]
http://jasss.soc.surrey.ac.uk/12/2/2.html

_____________________________________________________________

15.01. Design Guidelines for Agent Based Model Visualization , Journal of
Artificial Societies and Social Simulation

Excerpt: In the field of agent-based modeling (ABM), visualizations play
an important role in identifying, communicating and understanding
important behavior of the modeled phenomenon. (...)This paper provides ABM
visualization design guidelines in order to improve visual design with ABM
toolkits.

* [34] Design Guidelines for Agent Based Model Visualization, Daniel
Kornhauser , Uri Wilensky , William Rand, 31-Mar-2009, Journal of
Artificial Societies and Social Simulation vol. 12, no. 2 1


[34] http://jasss.soc.surrey.ac.uk/12/2/1.html

_____________________________________________________________________
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