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SOCNET  October 2018

SOCNET October 2018

Subject:

selected Latest Complexity Digest Posts (fwd)

From:

Barry Wellman <[log in to unmask]>

Reply-To:

Barry Wellman <[log in to unmask]>

Date:

Mon, 8 Oct 2018 10:13:38 -0400

Content-Type:

MULTIPART/MIXED

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Parts/Attachments

TEXT/PLAIN (111 lines)

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

Happy Thanksgiving to us Canadians

   Barry Wellman


   Step by step, link by link, putting it together--Streisand/Sondheim
        The earth to be spannd, connected by network--Walt Whitman
              It's Always Something--Roseanne Roseannadanna

               A day like all days, filled with those events
          that alter and illuminate our times--Walter Cronkite
  _______________________________________________________________________
   NetLab Network      			                            FRSC
   Distinguished Visiting Scholar   Social Media Lab   Ryerson University
         Founder, International Network for Social Network Analysis
   NETWORKED: The New Social Operating System  Lee Rainie & Barry Wellman
   https://urldefense.proofpoint.com/v2/url?u=http-3A__www.chass.utoronto.ca_-7Ewellman&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=ed8pekfaVRquOwK2xe1XxEDhzDV-z7rqWIdWwz5RShk&e=            https://urldefense.proofpoint.com/v2/url?u=http-3A__amzn.to_zXZg39&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=7WgfXMKiAkqhOAQ7Pil2z1XMP4qBPnhyxxuslpo9z_8&e=
              https://urldefense.proofpoint.com/v2/url?u=https-3A__en.wikipedia.org_wiki_Barry-5FWellman&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=cJP4kBh_8hDIPVtbeHaYrm6evvcN2SVDvswYcHQAORA&e=
   _______________________________________________________________________


---------- Forwarded message ----------
Date: Mon, 8 Oct 2018 11:02:40 +0000
From: "[utf-8] Complexity Digest" <[log in to unmask]>
Reply-To: [log in to unmask]
To: "[utf-8] Barry" <[log in to unmask]>
Subject: [utf-8] Latest Complexity Digest Posts

Learn about the latest and greatest related to complex systems research. More at https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3D5d7b928f89-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=CUiD0mZjgI6L0FUSwrO85OKW_Yl2dz-vGMVcJQjyzcg&e=



Social style and resilience of macaques˙˙ networks, a theoretical investigation

    Group-living animals rely on efficient transmission of information for optimal exploitation of their habitat. How efficient and resilient a network is depend on its structure, which is a consequence of the social interactions of the individuals that comprise the network. In macaques, network structure differs according to dominance style. Networks of intolerant species are more modular, more centralized, and less connected than those of tolerant ones. Given these structural differences, networks of intolerant species are potentially more vulnerable to fragmentation and decreased information transmission when central individuals disappear. Here we studied network resilience and efficiency in artificial societies of macaques. The networks were produced with an individual-based model that has been shown to reproduce the structural features of networks of tolerant and intolerant macaques. To study network resilience, we deleted either central individuals or individuals at random
and studied the effects of these deletions on network cohesiveness and efficiency. The deletion of central individuals had more negative effects than random deletions from the networks of both tolerant and intolerant artificial societies. Central individuals thus appeared to aid in the maintenance of network cohesiveness and efficiency. Further, the networks of both intolerant and tolerant societies appeared to be robust to the loss of individuals, as network fragmentation was never observed. Our results suggest that despite differences in network structure, networks of tolerant and intolerant macaques may be equally resilient.


Social style and resilience of macaques˙˙ networks, a theoretical investigation
Ivan Puga-Gonzalez, Sebastian Sosa, Cedric Sueur

Primates

Source: link.springer.com (https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3D42846d8893-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=_AgJ9_2N8HfayaEs9efEWMvnkjc9LemU2Z9VvJFkDVc&e=)



Cross-boundary Behavioural Reprogrammability Reveals Evidence of Pervasive Turing-Universality

    https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3Dfbae3518b5-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=KSW4XDrokZ1DEVekch2Q3xVjCC6BDvxI8GXPoCD_l-Y&e=

New paper sheds light on the pervasiveness of Turing universality by showing a series of behavioural boundary crossing results, including emulations (for all initial conditions) of Wolfram class 2 Elementary Cellular Automata (ECA) by Class 1 ECA, emulations of Classes 1, 2 and 3 ECA by Class 2 and 3 ECA, and of Classes 1, 2 and 3 by Class 3 ECA, along with results of even greater emulability for general CA (neighbourhood r = 3/2), including Class 1 CA emulating Classes 2 and 3, and Classes 3 and 4 emulating all other classes (1, 2, 3 and 4). The emulations occur with only a linear overhead and can be considered computationally efficient. The paper also introduces a concept of emulation networks, deriving a topologically-based measure of complexity based upon out- and in-degree connectivity establishing bridges to fundamental ideas of complexity, universality, causality and dynamical systems.

Source: www.oldcitypublishing.com (https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3Dbb26fd29eb-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=nSuLjYDB6Krg1ZR9sOKnYilU6U6-xtzh_Ma9LUy8Np4&e=)


The Adaptive Behavior of a Soccer Team: An Entropy-Based Analysis

    To optimize its performance, a competitive team, such as a soccer team, must maintain a delicate balance between organization and disorganization. On the one hand, the team should maintain organized patterns of behavior to maximize the cooperation between its members. On the other hand, the team˙˙s behavior should be disordered enough to mislead its opponent and to maintain enough degrees of freedom. In this paper, we have analyzed this dynamic in the context of soccer games and examined whether it is correlated with the team˙˙s performance. We measured the organization associated with the behavior of a soccer team through the Tsallis entropy of ball passes between the players. Analyzing data taken from the English Premier League (2015/2016), we show that the team˙˙s position at the end of the season is correlated with the team˙˙s entropy as measured with a super-additive entropy index. Moreover, the entropy score of a team significantly contributes to the prediction of the
team˙˙s position at the end of the season beyond the prediction gained by the team˙˙s position at the end of the previous season.


Neuman, Y.; Israeli, N.; Vilenchik, D.; Cohen, Y.

The Adaptive Behavior of a Soccer Team: An Entropy-Based Analysis.

Entropy 2018, 20, 758.

https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3Dd9afde0da0-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=t2uUbFqIpUPrjzIRvpKllQciO-g-akWgWl1k_Hr5SAM&e=

Source: www.mdpi.com (https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3Dabc47a52db-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=kR5Xq7ZxD3NpesVc_ZMLyMO9QQJU0EAEgsCMF9HsxgY&e=)



Modeling Collective Rule at Ancient Teotihuacan as a Complex Adaptive System: Communal Ritual Makes Social Hierarchy More Effective

    https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3D42f9eb01a4-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=DIW0e2ZtiPyelqsLYAV6f_tqE7BAE7LwpWjRTD98-Go&e=

Experts remain divided about the nature of the sociopolitical system of ancient Teotihuacan, which was one of the earliest and largest urban civilizations of the Americas. Excavations hoping to find compelling evidence of powerful rulers, such as a royal tomb, keep coming away empty-handed. But the alternative possibility of collective rule still remains poorly understood as well. Previously we used a computational model of this city˙˙s hypothetical sociopolitical network to show that in principle collective rule based on communal ritual could be an effective strategy of ensuring widespread social coordination, as long as we assume that the network˙˙s structure could be transformed via social learning and local leaders were not strongly subdivided. Here we extended this model to investigate whether increased social hierarchy could mitigate the negative effects of such strong divisions. We found a special synergy between social hierarchy and communal ritual: only their
combination improved the extent of social coordination, whereas the introduction of centralization and top-down influence by themselves had no effect. This finding is consistent with portrayals of the Teotihuacan elite as religious specialists serving the public good, in particular by synchronizing the city˙˙s ritual calendar with the rhythms of the stars.


Modeling Collective Rule at Ancient Teotihuacan as a Complex Adaptive System: Communal Ritual Makes Social Hierarchy More Effective
Tom Froese & Linda R. Manzanilla

Cognitive Systems Research

Source: www.sciencedirect.com (https://urldefense.proofpoint.com/v2/url?u=https-3A__unam.us4.list-2Dmanage.com_track_click-3Fu-3D0eb0ac9b4e8565f2967a8304b-26id-3D2e90fc7fbd-26e-3D55e25a0e3e&d=DwIFAw&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=RI3UUmHRRD7p3N__9iYaOv_SSwkxOFggGwinGUtf9BQ&s=72WP9aFUHu2hsPJrNJO9tMLg5e7pj_L7GgmYsYoih34&e=)




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Sponsored by the Complex Systems Society.
Founding Editor: Gottfried Mayer.
Editor-in-Chief: Carlos Gershenson.

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