sylabus.md

% Further SNA topics

Order of topics to be reordered.

Local neighborhoods

Ego-centric perspective on networks (also: data from name generator). Definition of ego-networks, neighborhoods of different degree.

Basic properties of ego-networks:

• size,
• composition (with respect to node and/or edge attributes),
• homophily,
• heterogeneity.

Concepts of brokerage:

• effective size,
• efficiency,
• Burt’s constraint
• dyadic con- straint.

Źródła:

• Exploratory SNA with Pajek.
• Burt
• W&F

Small-world phenomenon

High clustering, short geodesics.

Czy w danej sieci występuję fenomen małych światów?

Źródła:

• Watts & Strogatz

Friendship paradox

Why you friends have on average more friends than you do?

Ilustracja w przykładowych dancych.

Źródła:

• http://en.wikipedia.org/wiki/Friendship_paradox
• http://www.economist.com/blogs/economist-explains/2013/04/economist-explains-why-friends-more-popular-paradox
• http://www.jstor.org/discover/10.2307/2781907?sid=21105509656851&uid=4&uid=3738840&uid=2
• http://opinionator.blogs.nytimes.com/2012/09/17/friends-you-can-count-on/?_r=0
• http://blogs.cornell.edu/info2040/2012/10/03/the-friendship-paradox-why-your-friends-have-more-friends-than-you-do/

Homophily and segregation

Segregation and homophily as local and global characteristics of the network. Mixing matrices. Segregation as dependence of edge probability on node at- tributes. Segregation as dependence between node attributes (mixing). Overview of existing homophily and segregation measures: Freeman’s segre- gation index, Coleman’s homophily index, assortativity coefficient, spectral segregation index, and more.

Bojanowski & Corten (2014)

Funkcje do większości miar są w https://github.com/mbojan/isnar

Cohesion

Cliques (Wasserman & Faust).

Groups and communities:

• Moody (2003) Structural Cohesion and Embeddedness: Hierarchical Concept of Groups
• Newman: granularity.
• Louvain method.
• Inne metody community detection (te co w igraph)

Two-mode networks:

• "having something in common"
• projections

Fitting ERGMs with statnet

Data collection

(opcjonalnie)

• Name generator
• Position generator
• Resource generator

Ewentualne przykłady eRowe analizy danych zebranych w ten sposób.