networks and network weaving
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Multilayer Networks

Most real and engineered systems include multiple subsystems and layers of connectivity, and it is important to take such features into account to try to obtain a complete understanding of these systems. It is thus necessary to generalize "traditional" network theory by developing (and validating) a framework and associated tools to study multilayer systems in a comprehensive fashion. The origins of such efforts occurred several decades ago, but now the study of multilayer networks has become one of the major directions in network science. In this paper, we discuss the history of multilayer networks (and related concepts) and then review the exploding body of work on such networks. To unify the disparate terminology in the large body of recent work, we discuss a general framework for multilayer networks, construct a dictionary of terminology to relate the numerous existing concepts to each other, and provide a thorough discussion that compares, contrasts, and translates between related notions such as multilayer networks, multiplex networks, interdependent networks, networks of networks, and many others. We also survey and discuss existing data sets that can be represented as multilayer networks. We review attempts to generalize single-layer-network diagnostics to multilayer networks and discuss the rapidly expanding research on multilayer-network models and notions like community detection, connected components, tensor decompositions, and various types of dynamical processes on multilayer networks. We conclude with a summary and an outlook.

 

Multilayer Networks
Mikko Kivelä, Alexandre Arenas, Marc Barthelemy, James P. Gleeson, Yamir Moreno, Mason A. Porter

http://arxiv.org/abs/1309.7233


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I think it's critical we understand multi-scalar networks in social transformation.

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networks and network weaving
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Using a Network Map to Break Down Silos & Prompt Innovation in R&D | LinkedIn

Using a Network Map to Break Down Silos & Prompt Innovation in R&D | LinkedIn | networks and network weaving | Scoop.it
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Rescooped by june holley from CxBooks
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Temporal Network Epidemiology

This book covers recent developments in epidemic process models and related data on temporally varying networks. It is widely recognized that contact networks are indispensable for describing, understanding, and intervening to stop the spread of infectious diseases in human and animal populations; “network epidemiology” is an umbrella term to describe this research field.

More recently, contact networks have been recognized as being highly dynamic. This observation, also supported by an increasing amount of new data, has led to research on temporal networks, a rapidly growing area. Changes in network structure are often informed by epidemic (or other) dynamics, in which case they are referred to as adaptive networks.

This volume gathers contributions by prominent authors working in temporal and adaptive network epidemiology, a field essential to understanding infectious diseases in real society.

 

Temporal Network Epidemiology
Naoki Masuda, Petter Holme (Eds.)


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Conferences for ENGAGEMENT…rather than display | Networking Action

Conferences for ENGAGEMENT…rather than display | Networking Action | networks and network weaving | Scoop.it
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Power in Participatory Community Network Mapping- Part 3 of an interview with Aldo de Moor | Greater Than The Sum

Power in Participatory Community Network Mapping- Part 3 of an interview with Aldo de Moor | Greater Than The Sum | networks and network weaving | Scoop.it
"Maps have power. They always have throughout human history. Maps have been very powerful artifacts" - Aldo de Moor
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In social networks, group boundaries promote the spread of ideas, study finds

In social networks, group boundaries promote the spread of ideas, study finds | networks and network weaving | Scoop.it
Social networks affect every aspect of our lives, from the jobs we get and the technologies we adopt to the partners we choose and the healthiness of our lifestyles. But where do they come from?
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Rescooped by june holley from E-Learning-Inclusivo (Mashup)
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Emergent Learning Networks

Emergent Learning Networks | networks and network weaving | Scoop.it
  For the past chunk of time, I have been doing research into the emergence and evolution of learning networks in learning environments of all kinds. In my slightly (okay more than slightly) schizophrenic way of doing things, I have been looking at secondary science and high ed settings for this work. Thanks to Stephen…

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"Foundations as Network Strategists, Weavers, and Managers: Learning Fr" by Clare Nolan, Brian Souza et al.

"Foundations as Network Strategists, Weavers, and Managers: Learning Fr" by Clare Nolan, Brian Souza et al. | networks and network weaving | Scoop.it

Excellent article - well worth the read!

 

"This article shares insights from a five-year evaluation of the Oral Health 2020 network, an effort by the DentaQuest Foundation to align and strengthen efforts in service of a national movement to improve oral health. The evaluation helped to place the foundation’s journey in the context of a broader field seeking new approaches to achieve deep and sustainable social change.
The foundation’s approach was informed by several ideas that have gained momentum in the social sector, including collective impact, networks, systems change, and equity – all of which challenged the foundation to take a nontraditional approach that combined the roles of network hub, weaver, and backbone organization.
Six years in, the network has achieved notable successes, but along the way the foundation and its partners learned numerous lessons about what it takes to build and sustain a national network. This article shares those lessons, and also considers changes in federal policy and their implications.

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Rescooped by june holley from Empathy and Compassion
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Networks of Emotion Concepts

Networks of Emotion Concepts | networks and network weaving | Scoop.it
The aim of this work was to study the similarity network and hierarchical clustering of Finnish emotion concepts. Native speakers of Finnish evaluated similarity between the 50 most frequently used Finnish words describing emotional experiences.

 

We hypothesized that methods developed within network theory, such as identifying clusters and specific local network structures, can reveal structures that would be difficult to discover using traditional methods such as multidimensional scaling (MDS) and ordinary cluster analysis. The concepts divided into three main clusters, which can be described as negative, positive, and surprise.

 

Negative and positive clusters divided further into meaningful sub-clusters, corresponding to those found in previous studies. Importantly, this method allowed the same concept to be a member in more than one cluster.

 

Our results suggest that studying particular network structures that do not fit into a low-dimensional description can shed additional light on why subjects evaluate certain concepts as similar. To encourage the use of network methods in analyzing similarity data, we provide the analysis software for free use

(http://www.becs.tkk.fi/similaritynets/).

 


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Task-Based Core-Periphery Organization of Human Brain Dynamics

Task-Based Core-Periphery Organization of Human Brain Dynamics | networks and network weaving | Scoop.it
Author Summary When someone learns a new skill, his/her brain dynamically alters individual synapses, regional activity, and larger-scale circuits. In this paper, we capture some of these dynamics by measuring and characterizing patterns of coherent brain activity during the learning of a motor skill. We extract time-evolving communities from these patterns and find that a temporal core that is composed primarily of primary sensorimotor and visual regions reconfigures little over time, whereas a periphery that is composed primarily of multimodal association regions reconfigures frequently. The core consists of densely connected nodes, and the periphery consists of sparsely connected nodes. Individual participants with a larger separation between core and periphery learn better in subsequent training sessions than individuals with a smaller separation. Conceptually, core-periphery organization provides a framework in which to understand how putative functional modules are linked. This, in turn, enables the prediction of fundamental human capacities, including the production of complex goal-directed behavior.
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Pro-Russian Bots Take Up the Right-Wing Cause After Charlottesville

Pro-Russian Bots Take Up the Right-Wing Cause After Charlottesville | networks and network weaving | Scoop.it
Analysts tracking Russian influence operations find a feedback loop between Kremlin propaganda and far-right memes.
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Who Says a Common Agenda Is Necessary for Collective Impact?

Who Says a Common Agenda Is Necessary for Collective Impact? | networks and network weaving | Scoop.it
The notion of a common agenda is often taken for granted as a core need for building collective impact, when in fact it poses a real stumbling block for networks in their early stages.
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The False Prophecy of Hyperconnection

The False Prophecy of Hyperconnection | networks and network weaving | Scoop.it
Network theory, too often overlooked, reveals that the connections that increasingly rule the world are not as benign as advertised.
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Rescooped by june holley from Papers
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Evidence of complex contagion of information in social media: An experiment using Twitter bots

It has recently become possible to study the dynamics of information diffusion in techno-social systems at scale, due to the emergence of online platforms, such as Twitter, with millions of users. One question that systematically recurs is whether information spreads according to simple or complex dynamics: does each exposure to a piece of information have an independent probability of a user adopting it (simple contagion), or does this probability depend instead on the number of sources of exposure, increasing above some threshold (complex contagion)? Most studies to date are observational and, therefore, unable to disentangle the effects of confounding factors such as social reinforcement, homophily, limited attention, or network community structure. Here we describe a novel controlled experiment that we performed on Twitter using ‘social bots’ deployed to carry out coordinated attempts at spreading information. We propose two Bayesian statistical models describing simple and complex contagion dynamics, and test the competing hypotheses. We provide experimental evidence that the complex contagion model describes the observed information diffusion behavior more accurately than simple contagion. Future applications of our results include more effective defenses against malicious propaganda campaigns on social media, improved marketing and advertisement strategies, and design of effective network intervention techniques.

 

Mønsted B, Sapieżyński P, Ferrara E, Lehmann S (2017) Evidence of complex contagion of information in social media: An experiment using Twitter bots. PLoS ONE 12(9): e0184148. https://doi.org/10.1371/journal.pone.0184148


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Many writers try to span America’s political divide

Many writers try to span America’s political divide | networks and network weaving | Scoop.it
THAT left- and right-leaning Americans read different books might be the least surprising fact about publishing. After all, they live in different places, eat different food, listen to different music and, of course, consume different kinds of news.
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Rescooped by june holley from Talent Analytics & The Future of Work
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To Understand Whether Your Company Is Inclusive, Map How Your Employees Interact

To Understand Whether Your Company Is Inclusive, Map How Your Employees Interact | networks and network weaving | Scoop.it
Creating a diverse company doesn’t stop with hiring.

Via David Green
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Plexus Institute | Networks of the Brain

Plexus Institute | Networks of the Brain | networks and network weaving | Scoop.it
In 2009, the Human Connectome Project (HCP) was launched to  to build a “network map” (connectome) for the healthy human brain. The purpose of the connectome is to decipher the amazingly complex wiring diagram to reveal what makes us uniquely human and what makes every person different from all others. Dr. Olaf Sporns from Indiana University at Bloomington, author of Networks of the Brain (February 2011) has been leading the work of creating a complete connection (network) map of the brain.  According to Sporns, “Understanding the human brain is one of the great scientific challenges of the 21st century.”

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Rescooped by june holley from Business Improvement and Social media
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Study Finds 'Collusion Network' of Fake Likes on Facebook

Study Finds 'Collusion Network' of Fake Likes on Facebook | networks and network weaving | Scoop.it
After Facebook revealed Russia had bought ads ahead of the election, researchers find a network of manipulation networks
Via Brian Yanish - MarketingHits.com, Ricard Lloria
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Global cooperation depends on the strength of local connections – Benjamin Allen | Aeon Ideas

Global cooperation depends on the strength of local connections – Benjamin Allen | Aeon Ideas | networks and network weaving | Scoop.it
The story of humanity is one of extraordinary cooperation but also terrible conflict. We come together to build cities, civilisations and cultures, but we also destroy these through violence against each other and degradation of our environment
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Core-Periphery Structure in Networks | SIAM Journal on Applied Mathematics | Vol. 74, No. 1 | Society for Industrial and Applied Mathematics

Core-Periphery Structure in Networks | SIAM Journal on Applied Mathematics | Vol. 74, No. 1 | Society for Industrial and Applied Mathematics | networks and network weaving | Scoop.it
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Social influence on 5-year survival in a longitudinal chemotherapy ward co-presence network

Chemotherapy is often administered in openly designed hospital wards, where the possibility of patient–patient social influence on health exists. Previous research found that social relationships influence cancer patient's health; however, we have yet to understand social influence among patients receiving chemotherapy in the hospital. We investigate the influence of co-presence in a chemotherapy ward. We use data on 4,691 cancer patients undergoing chemotherapy in Oxfordshire, United Kingdom who average 59.8 years of age, and 44% are Male. We construct a network of patients where edges exist when patients are co-present in the ward, weighted by both patients' time in the ward. Social influence is based on total weighted co-presence with focal patients' immediate neighbors, considering neighbors' 5-year mortality. Generalized estimating equations evaluated the effect of neighbors' 5-year mortality on focal patient's 5-year mortality. Each 1,000-unit increase in weighted co-presence with a patient who dies within 5 years increases a patient's mortality odds by 42% (β = 0.357, CI:0.204,0.510). Each 1,000-unit increase in co-presence with a patient surviving 5 years reduces a patient's odds of dying by 30% (β =−0.344, CI:−0.538,0.149). Our results suggest that social influence occurs in chemotherapy wards, and thus may need to be considered in chemotherapy delivery.

 

Social influence on 5-year survival in a longitudinal chemotherapy ward co-presence network
JEFFREY LIENERT, CHRISTOPHER STEVEN MARCUM, JOHN FINNEY, FELIX REED-TSOCHAS

Network Science
DOI: https://doi.org/10.1017/nws.2017.16


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