DCS/CSCI 2350: Social & Economic Networks Are the connected - - PDF document
10/20/20 DCS/CSCI 2350: Social & Economic Networks Are the connected nodes in a network kind of the same? Reading: Ch 4 of Easley-Kleinberg Homophily Mohammad T . Irfan Homophily u What is it? u How to measure it? u How does it
u What is it? u How to measure it? u How does it happen? u Can we “exploit” it for something good? u Effects of homophily
u Segregation
u Principle that "We are like our friends"
u Age u Place of living u Occupation u Income u Interests u Beliefs u Opinions
u Homophily illustrates how the surrounding
u Intrinsic vs. contextual
u Crandall et al. (2008) Similarity score = # articles edited by both A AND B / #… edited by A OR B
u In a network, friends share a lot of common
u Cohen & Kandel (1977)– teenage drug usage
u Affiliation network
Strong evidence of social influence in 32 years of data
https://www.chicagoreader.com/chicago/still-separate-unequal-and-ignored/Content?oid=16347785
New York (Eric Fischer, 2010)
Jamaica Bayside
Thomas Schelling Nobel Prize (2005)
Threshold = 3
u People move because they want to be
u Correct: They want to avoid being extreme
minorities
u Game-theoretic view
u Structure
u Two networks u Multiple agents in the
same location
u Locations have capacity
u Behavior
u Social network influence u Location effect
Locations Agents
u NetLogo u File à Models Library à Social Science à