International Workshop on Challenges and Visions in the Social Sciences

Agents and avatars: A new era of computational social science

author:Michael Macy, Cornell University
published: Sept. 26, 2008, recorded: August 2008, views: 182

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Slides

Slides
0:00	Agents and Avatars: A New Era of Computational Social Science
0:02	Acknowledgements
0:11	Picture
0:59	Outline
1:41	Part 1
1:45	“Old School” Social Science
2:30	Variables Interact, Not People
3:03	A Hopfield Model of Opinion Dynamics*
4:24	True Results When Influence is Precluded
4:47	Spurious Results When Influence is Allowed
5:14	From Factors to Actors
5:44	Problem: Social Life is Hard to See
6:30	Why This is Changing
7:36	New Era of Computational Social Science
8:57	Cover Story in Science part1
9:04	Cover Story in Science part2
9:18	But is this the “Real World”?
11:21	The Web is All Too Real
11:27	The Web as a Record of Social Interaction
12:18	The Internet Archive
13:05	ETH Website
13:23	Part 2
13:55	I. How Do Ties Matter?
14:25	Conversation
14:47	Six Degrees of Separation
15:07	Adding to the Mystery…
15:40	Nice picture
16:01	Solved by Watts & Strogatz
16:26	Granovetter: Strength of Weak Ties
17:00	Does Tie Strength Decline with Range?*
17:35	Call Volume Declines with Range
18:31	Range Compensates for Weakness
19:13	The Chain‐Letter Paradox*
19:42	The Triangle Paradox
20:13	Friendship and Diffusion*
20:51	Number and clustering of friends part1
21:02	Number and clustering of friends part2
21:05	Number and clustering of friends part3
21:06	Number and clustering of friends part4
21:06	Number and clustering of friends part5
21:06	Number and clustering of friends part6
21:07	Number and clustering of friends part7
21:08	Number and clustering of friends part8
21:09	Number of Triangles among those with 7 Adopter Ties
21:41	Why Do Triangles Matter?
22:25	Why is Clustering Important?
23:00	A Simple Explanation*
23:33	Ilustration part1
23:45	Ilustration part2
23:49	Ilustration part3
23:51	Ilustration part4
23:59	Ilustration part5
24:02	Ilustration part6
24:11	An Agent‐Based Experiment
24:24	Random ties promote tge spread information
24:43	But not the spread of social contagions
25:10	Opinion Dynamics in US & JP*
26:02	II. Why Do Ties Form?
26:49	Empirical Tests
27:30	Why is Trust Lower in Japan?*
27:32	Web-Based Laboratory
27:34	Why Does Conflict Management Rarely Succeed?*
28:37	Intergroup Conflict
29:15	Sunni Militants Execute Moderate Sunnis Who Question Secretarian Violence
29:22	An Online Experiment
30:06	Test Strategies Online
30:34	A Parting Thought …
31:09	And a Word of Caution …
32:02	The End

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