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Self-Organization Leads to Hierarchical Modularity in an Internet Community [chapter]

Jennifer Hallinan
2003 Lecture Notes in Computer Science  
In this paper we introduce a coherence metric for the quantification of structural modularity, and use this metric to demonstrate that a self-organized social network derived from Internet Relay Chat (  ...  IRC) channel interactions exhibits measurable hierarchical modularity, reflecting an underlying hierarchical neighbourhood structure in the social network.  ...  We present an algorithm for the quantification of hierarchical modularity, and use this algorithm to demonstrate that a self-organized internet community, part of the IRC network, is indeed organized in  ... 
doi:10.1007/978-3-540-45224-9_122 fatcat:u6llgxxinve6roa3xiuys2laqm

Spectral Characterization of Hierarchical Network Modularity and Limits of Modularity Detection

Somwrita Sarkar, James A. Henderson, Peter A. Robinson, Jesus Gomez-Gardenes
2013 PLoS ONE  
Many real world networks are reported to have hierarchically modular organization. However, there exists no algorithmindependent metric to characterize hierarchical modularity in a complex system.  ...  It is shown that even when modularity and hierarchical modularity are present in a weak form in the network, they are impossible to detect, because some of the leading eigenvalues fall within the bulk  ...  Since many self-organized systems in nature and society show modular organization, we were interested in looking at the modularity properties of large scale evolving peer to peer networks, and to chart  ... 
doi:10.1371/journal.pone.0054383 pmid:23382895 pmcid:PMC3557301 fatcat:u5vaxg2knng6tnj5idvidwlg3u

Self-organized Model for Modular Complex Networks : Division and Independence [article]

D.-H. Kim, G. J. Rodgers, B. Kahng, D. Kim
2003 arXiv   pre-print
We introduce a minimal network model which generates a modular structure in a self-organized way.  ...  We find that the model can reproduce successfully the behavior of the hierarchical clustering coefficient of a vertex with degree k, C(k), in good agreement with empirical measurements of real world networks  ...  In this paper, we are interested in modelling modular complex networks, in particular, forming in a self-organized way.  ... 
arXiv:cond-mat/0310233v1 fatcat:yjjzncoodbcrjb42qbpmmynapu

Biological principles for future internet architecture design

Sasitharan Balasubramaniam, Kenji Leibnitz, Pietro Lio, Dmitri Botvich, Masayuki Murata
2011 IEEE Communications Magazine  
in a Content-Centric Internet."  ...  The authors wish to acknowledge the following funding support: Science Foundation Ireland via the "Federated, Autonomic Management of End-to-End Communications Services" (grant no. 08/SRC/I1403), Science  ...  This is often dubbed as self-* properties in the literature (self-organization self-management, etc.). In this section we list the requirements expected in our view of the future Internet.  ... 
doi:10.1109/mcom.2011.5936154 fatcat:nrrsrcd2njfpzfjmlstyinilni

Hierarchical Organization of Modularity in Complex Networks [chapter]

Albert-László Barabási, Erzsébet Ravasz, Zoltán Oltvai
2003 Lecture Notes in Physics  
In hierarchical networks the clustering coefficient follows a strict scaling law, which can be used to identify the presence of a hierarchical organization in real networks.  ...  We show that the scalefree nature and high clustering of real networks are the consequence of a hierarchical organization, implying that small groups of nodes form increasingly large groups in a hierarchical  ...  the 43 organisms (After [17]) Fig. 3 . 3 The iterative construction leading to a hierarchical network.  ... 
doi:10.1007/978-3-540-44943-0_4 fatcat:ykxq4vnflzawlf7pq4jiq3kb5m

Hierarchical organization in complex networks

Erzsébet Ravasz, Albert-László Barabási
2003 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
In hierarchical networks the degree of clustering characterizing the different groups follows a strict scaling law, which can be used to identify the presence of a hierarchical organization in real networks  ...  We show that these two features are the consequence of a hierarchical organization, implying that small groups of nodes organize in a hierarchical manner into increasingly large groups, while maintaining  ...  We wish to thank S. H. Yook and H. Jeong for providing us the language database. This research was supported by NSF, DOE, and NIH.  ... 
doi:10.1103/physreve.67.026112 pmid:12636753 fatcat:zz6bodhc7zbplgid3gyzh5zhse

Internet of Things

Sebastian Steinhorst
2020 it - Information Technology  
A conventional IoT system is organized in a hierarchical fashion and composed of end devices, which are combining computation, communication, sensing and actuation capabilities in resource-constrained  ...  IoT describes a system architecture where all components are communicating using Internet technology and provide an unprecedented level of connectedness across all architecture layers.  ...  A conventional IoT system is organized in a hierarchical fashion and composed of end devices, which are combining computation, communication, sensing and actuation capabilities in resource-constrained  ... 
doi:10.1515/itit-2020-0047 fatcat:ztbq7sypq5gczgso4xrwn6gdzq

Subsidiarity and Weak Coupling in Wireless Networks

Aarne Mammela, Jukka Riekki
2021 2021 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit)  
This proposal leads to organizing the network as a hierarchy of interacting rational agents with vertical and horizontal weak coupling.  ...  In communications, each transmitter can be interpreted as a rational lower level agent.  ...  In [12] , the authors mention leaderless (decentralized or distributed) and leader-follow (centralized) multi-agent systems, but there is almost nothing about self-organization.  ... 
doi:10.1109/eucnc/6gsummit51104.2021.9482591 fatcat:sbm66nvvcvg5joaqcauujoi7le

Origins of fractality in the growth of complex networks

Chaoming Song, Shlomo Havlin, Hernán A. Makse
2006 Nature Physics  
In particular, the emergence of self-similarity in complex networks raises the fundamental question of the growth process according to which these structures evolve.  ...  Complex networks from such different fields as biology, technology or sociology share similar organization principles.  ...  S.H. wishes to thank the Israel Science Foundation, ONR and Dysonet for support. This work is supported by the National Science Foundation, DMR-0239504 to H.A.M.  ... 
doi:10.1038/nphys266 fatcat:gjnosc45dffwfhyf2cuuv62jcq

Router-level community structure of the Internet Autonomous Systems

Mariano G Beiró, Sebastián P Grynberg, J Ignacio Alvarez-Hamelin
2015 EPJ Data Science  
In this work, we study the modular structure of the Internet router-level graph in order to assess to what extent the Autonomous Systems satisfy some of the known notions of community structure.  ...  into a complex modular and hierarchical network.  ...  Busch for his discussions on the Deltacom algorithm, and the anonymous reviewers who contributed to the paper with their suggestions.  ... 
doi:10.1140/epjds/s13688-015-0048-y fatcat:5xwhmmcdgjfkng7ta7mlptwk3y

Adaptive clustering algorithm for community detection in complex networks

Zhenqing Ye, Songnian Hu, Jun Yu
2008 Physical Review E  
An optimal modular structure can emerge from a collection of these active nodes during a self-organization process where vertices constantly regroup.  ...  The applications in three real-world networks demonstrate the superiority of our algorithm to find communities that are parallel with the appropriate organization in reality.  ...  ACKNOWLEDGMENT This work was supported by Grant No. 2006CB910400 from the Chinese Ministry of Science and Technology and awarded to J.Y.  ... 
doi:10.1103/physreve.78.046115 pmid:18999501 fatcat:et55b37y2nhv5lon5g755xlija

Page 4970 of Psychological Abstracts Vol. 84, Issue 10 [page]

1997 Psychological Abstracts  
—Introduces HART-S, a new modular neural network (NN) that can in- crementally learn stable hierarchical clusterings of arbitrary se- quences of input patterns by self-organization.  ...  The user lacks the equivalent of a body at the other end to move around in, communicate through, and observe with.  ... 

The Tables Have Turned: How Can the Information Systems Field Contribute to Technology and Innovation Management Research?

Youngjin Yoo
2013 Journal of the AIS  
on modularity.  ...  intellectual tradition of the IS community.  ...  In this paper, I argue that the IS community can lead such an effort by drawing on its intellectual tradition of sociomateriality.  ... 
doi:10.17705/1jais.00334 fatcat:b2qyiep2tzaxnmab7dvx5fxvre

Networks: Structure and Dynamics [chapter]

Erzsébet Ravasz Regan
2009 Encyclopedia of Complexity and Systems Science  
The internet at router level, found to be non-hierarchical, is a good example of such an assortative, non-fractal network.  ...  Hierarchical organization in metabolic networks was found to reflect biological function on different scales of organization: the branches of the dentogram obtained by hierarchical clustering (using topological  ... 
doi:10.1007/978-0-387-30440-3_356 fatcat:f2zg2yyyavaonfz4m5mwjr6rcu

Analysis of component-based approaches toward componentized 5G

Elie El Hayek, Imen Grida Ben Yahia, Damian Arellanes, Kung-Kiu Lau
2018 2018 21st Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN)  
This leads us to the question: what componentization approach to implement this modular architecture? Is there a componentization approach that is suitable for all the network functions?  ...  5G is expected to be modular by design toward autonomic and agile networks.  ...  This paper proposes an analysis of the different component-based approaches in order to highlight what could be suitable to implement a modular 5G architecture that is autonomic by design.  ... 
doi:10.1109/icin.2018.8401611 dblp:conf/icin/HayekYAL18 fatcat:hlbosg3mjjfgnbjm4po4w66dpa
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