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Saved by 32 people (11 private), first by anonymouse user on 2006-08-01


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on 2006-08-12 by rogerkondrat

Wikipedia social media description

on 2007-08-24 by forestfortrees

The article on Wikipedia on social network theory and analysis.

Public Sticky notes

An example of a social network diagram

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play a critical role in determining the way problems are solved, organizations are run, and the degree to which individuals succeed in achieving their goals.

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By contrast with analyses that assume that socialization into norms determines behavior, network analysis looks to see the extent to which the structure and composition of ties affect norms

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A social network is a social structure made of nodes (which are generally individuals or organizations) that are tied by one or more specific types of relations, such as values, visions, idea, financial exchange, friends, kinship, dislike, trade, web links, sexual relations, disease transmission (epidemiology), or airline routes.

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Social network analysis views social relationships in terms of nodes and ties. Nodes are the individual actors within the networks, and ties are the relationships between the actors

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A social network is a social structure made of nodes (which are generally individuals or organizations) that are tied by one or more specific types of interdependency, such as values, visions, idea, financial exchange, friends, kinship, dislike, conflict, trade, web links, sexual relations, disease transmission (epidemiology), or airline routes. The resulting structures are often very complex.

Social network analysis views social relationships in terms of nodes and ties. Nodes are the individual actors within the networks, and ties are the relationships between the actors. There can be many kinds of ties between the nodes. Research in a number of academic fields has shown that social networks operate on many levels, from families up to the level of nations, and play a critical role in determining the way problems are solved, organizations are run, and the degree to which individuals succeed in achieving their goals.

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and the degree to which individuals succeed in achieving their goals.

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a social network is a map of all of the relevant ties between the nodes being studied.

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There is no assumption that groups are the building blocks of society: the approach is open to studying less-bounded social systems, from nonlocal communities to links among Web sites.

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Rather than treating individuals (persons, organizations, states) as discrete units of analysis, it focuses on how the structure of ties affects individuals and their relationships.

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network analysis looks to see the extent to which the structure and composition of ties affect norms.

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Social network analysis produces an alternate view, where the attributes of individuals are less important than their relationships and ties with other actors within the network.

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This approach has turned out to be useful for explaining many real-world phenomena, but leaves less room for individual agency, the ability for individuals to influence their success, because so much of it rests within the structure of their network.

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Betweenness

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Centrality Closeness
The degree an individual is near all other individuals in a network (directly or indirectly).

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Eigenvector centrality is a measure of the importance of a node in a network. It assigns relative scores to all nodes in the network based on the principle that connections to nodes having a high score contribute more to the score of the node in question.

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Radiality
Degree an individual’s network reaches out into the network and provides novel information and influence

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Reach
The degree any member of a network can reach other members of the network.

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Krebs, Valdis (2006) Social Network Analysis, A Brief Introduction. (Includes a list of recent SNA applications Web Reference.)

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