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Networks: Some Notes

Jan 19, 2015



A presentation I gave for GS 197: Culture and its Global Entanglements, an undergrad class at University of the Philippines Diliman

  • 1. Networks: Some NotesDiego Maranan [email protected] Faculty of Information and Communication Studies, UP Open University GS 197, 11 December 2008

2. slides omitted from last time email addresses issues/questions/reactions from previous class(there are no stupid questions) 3. Networks: A special kind of graph Graph: A collection of nodes interconnected by paths Network: A collection of nodes interconnected by communication paths 4. What does this have to do with culture?Analyzing networks may provide answers to interesting and important questions regarding anything that can be represented as a network: bodies of knowledgecommunitiesorganizations 5. Are artificial groups consistent with de facto, naturally-occuring groups? How robust is the network to ruptures? Who/what is on the periphery? Which are nodes connecting different sub-groups? How should we treat these nodes differently? What does the shape of the network suggest about how knowledge circulates in the network 6. Examples 7. The Network of Scientific Knowledge(Boyard, 2005)Maps generated usingeight different journal-journal similaritymeasures Biochemistry appearsas the mostinterdisciplinarydiscipline in science. 8. The Internet on Jan 16, 2005 9. This image shows the hierarchical onstructure of the Internet, basedthe connections betweenindividual nodes (such as serviceproviders). Three distinct regionsare apparent: an inner core ofhighly connected nodes, an outerperiphery of isolated networks,and a mantle-like mass of peer-connected nodes. The bigger thenode, the more connections ithas. Those nodes that are closestto the center are connected to more well-connected nodes thanare those on the periphery. 10. TheInternetAtare about 80of thenodescore:the center core through which most traffic flows. Remove the core, and 70 percent of the other nodes are still able to function through peer-to-peer connections. 11. Thethe Internet At the veryoredge ofperiphery: are 5,000 so isolated nodes that are the most dependent upon the core and become cut off if the core is removed or shut down. Yet those nodes within this periphery are able to stay connected because of their peer-to-peer connections. 12. Mycelium (fungi) Nature's original Internet(Paul Stamets, 2007) 13. The notion of the rhizome(Deleuze and Guattari,1987) Connective Connections are possible at any point Heterogenous Unlike items can be connected Robust/asignifying rupture e.g., peer-to-peer connections that allow the Internet to function even when the most highly- connected nodes are remocd 14. Network economics Scarcity does not increase value: How useful was it to have owned a fax machine when it first came out? 15. My facebook network generated using Social Networks (1) Social networking 16. Subgroups in my networkSocial Networks: Linking 17. nodes connecting subgroups orphaned nodes and subgroups 18. Social network analysis Developed at the Human-Computer Interaction Lab at University of MarylandSimultaneously presents statisical analysis alongside social network analysis graph1SNAs can be used to examine power relations2 Screenshot from [1] Adam Perer, & Ben Shneiderman. (2008). Integrating Statistics and Visualization: Case Studies of Gaining Clarity during Exploratory Data Analysis. In Proceedings of the ACM Conference on Human Factors in Computing Systems. Florence, Italy. [2] e.g., Padgett, J. F., & Ansell, C. K. (1993). Robust Action and the Rise of the Medici, 1400-1434. American Journal of Sociology, 98(6), 1259. 19. (SocialAction... in action.) 20. Some Networked Art Projects I'm Working On 21. Open Source Dance Building dance communities through sharing Creative Commons-licensed choreography and tracking theflow of choreographic ideas across dance communities 22. Independent Cinema Portal visualization-techniques-presentation/ Facilitating insights into independent cinemas in the Philippines (but can be extended easily to cover global cinemas) using data publicly available on the web and data visualization techniques 23. The Apology Project A Web 2.0 platform for public apologies 24. salamat

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