CSCI 3350: Social & Economic Networks How do behavior, opinion, - - PDF document

▶

Dec 18, 2022 110 likes •153 views

2/27/2014 CSCI 3350: Social & Economic Networks How do behavior, opinion, technology, etc. propagate in a network? Cascading Behavior in Networks Reading: Ch 19 EK Mohammad T . Irfan 2/27/14 Midterm Exam 1 Thursday, March 6

SLIDE 1

2/27/2014 1

CSCI 3350: Social & Economic Networks

How do behavior, opinion, technology, etc. propagate in a network? “Cascading Behavior in Networks” Reading: Ch 19 EK

Mohammad T . Irfan 2/27/14

Midterm Exam 1

 Thursday, March 6  45 minutes (followed by lecture)  Topics

 The strength of weak ties – ch 3 of EK  Homophily – ch 4 of EK  Structural balance – ch 5 of EK  Diffusion (ongoing) – ch 19 and 21 of EK

SLIDE 2

2/27/2014 2

Previously

 Simple model of individual behavior based on

threshold

 Diffusion

 Homphily hinders diffusion  Weak ties do not help

Today

 Clustering vs. diffusion  Collective action (& collective behavior)  More general model of diffusion

 Thresholds are different

 Issue of initial adopters  Even more general model of diffusion

 Threshold & influence are different

SLIDE 3

2/27/2014 3

From crowd setting To behavioral setting

 Both positive and negative influence  Varying threshold levels

SLIDE 4

2/27/2014 4

Readings

 Ch 19 of EK  Granovetter’s threshold model

 http://vserver1.cscs.lsa.umich.edu/~spage/ONLINEC

OURSE/R2Granovetter.pdf

 Collective action

 My dissertation

 http://www.bowdoin.edu/~mirfan/papers/Mohammad_

Tanvir_Irfan_Dissertation.pdf

 Section 2.1.1 and Appendix 2A

 External links

 Gladwell’s view:

http://www.youtube.com/watch?v=YFbkVL1X9M8

 Watts’ view:

http://www.fastcompany.com/641124/tipping-point- toast