Social Discussion: social network analysis
- based on homework readings: Scott Feld, “The Focused Organization of Social Ties"; Mark Granovetter, “The Strength of Weak Ties”
- Different types of networks (behavioral, social, articulated)
Technical Discussion
- Graph properties help us understand relationship between items.
- goals: divide population into groups, find important people within a group, predict how information will spread, etc..
- concepts: connected components, triadic closure, small world networks, homophily, social ties, ...
- graph properties: density, cc, centrality
- karate club: example graph + insight
- Example: co-class graph
Technical
- Go over the last part of the [Network Analysis notebook] (https://github.com/giladlotan/itpmssd/blob/master/Week_5/network_analysis.ipynb) from class. Answer the following two questions (short, 1-2 paragraphs for each question):
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Take a look at the series of code blocks below. The same action is taken on our class graph over a number of iterations. Explain what's going on here.
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Describe what happens in the end. Do you have an explanation for why this would happen to the graph? What's the significance?
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Reading for Next Week
- I strongly recommend buying/borrowing a copy of Robert Weiss, “Learning from Strangers” to read through. There's a copy on the floor that I donated to the library. Get a sense for interviewing techniques.