Devcon APC 2010 facebook found my laptop the power of small world math
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Everyone knows the small-world phenomenon: soon after meeting a stranger, we are surprised to discover that we have a mutual friend, or we are connected through a short chain of acquaintances. In his book, Duncan Watts uses this intriguing phenomenon--colloquially called "six degrees of separation"--as a prelude to a more general exploration: under what conditions can a small world arise in any kind of network?The networks of this story are everywhere: the brain is a network of neurons; organisations are people networks; the global economy is a network of national economies, which are networks of markets, which are in turn networks of interacting producers and consumers. Food webs, ecosystems, and the Internet can all be represented as networks, as can strategies for solving a problem, topics in a conversation, and even words in a language. Many of these networks, the author claims, will turn out to be small worlds.How do such networks matter? Simply put, local actions can have global consequences, and the relationship between local and global dynamics depends critically on the network's structure. Watts illustrates the subtleties of this relationship using a variety of simple models---the spread of infectious disease through a structured population; the evolution of cooperation in game theory; the computational capacity of cellular automata; and the sychronisation of coupled phase-oscillators.Watts's novel approach is relevant to many problems that deal with network connectivity and complex systems' behaviour in general: How do diseases (or rumours) spread through social networks? How does cooperation evolve in large groups? How do cascading failures propagate through large power grids, or financial systems? What is the most efficient architecture for an organisation, or for a communications network? This fascinating exploration will be fruitful in a remarkable variety of fields, including physics and mathematics, as well as sociology, economics, and biology.
Transcript of Devcon APC 2010 facebook found my laptop the power of small world math
1967 …Stanley Milgram Mailed some envelopes and
started everything
All organic networks are 6
degrees or less
This is small world math
This is how ideas spread
This is how the Web Works
This is how the Universe works
This is Important
1997 …sixdegrees.com launches as the first social
network.
Evolutions
S
F
MF
networks …exhibit similar behaviours whether they are
networks of people, or computers, or companies, or power lines.
June 12, 2010My Macbook was Stolen
July 2, 2010Facebook Found my Macbook!
July 5, 2010They un-friend me on Facebook.
But that is okay…
August 2, 2009Facebook Found my Biological Father
It is a Small World After all…
Kevin Leversee
@KevinLeversee
We are inherent social beings, the need
To communicate and connect is almost
Genetic to our being, aside from small worlds
Several other factors come into play.
Our business is the business of connecting
People to people and people to brands.
Sources
• Experimental Study of the Small World Problem by Stanley Milgram http://www.jstor.org/pss/2786545
• http://www.digitaltrends.com/features/the-history-of-social-networking/
• http://www.bordalierinstitute.com
• http://en.wikipedia.org/wiki/Small_world_experiment and http://www.amazon.com/Small-Worlds-Duncan-J-Watts/dp/0691005419
• http://en.wikipedia.org/wiki/Social_network
• http://www.amazon.com/Six-Degrees-Science-Connected-Age/dp/0393041425 and http://www.guardian.co.uk/books/2003/oct/18/featuresreviews.guardianreview11
• http://livingtrends.blogspot.com/2010/07/stolen-macbook-pro-conversation-with.html and http://www.flickr.com/photos/kevinleversee/4754371658/
• http://en.wikipedia.org/wiki/The_Tipping_Point and http://www.amazon.com/Tipping-Point-Little-Things-Difference/dp/0316346624
• http://www.danah.org/papers/talks/Web2Expo.html "Streams of Content, Limited Attention: The Flow of Information through Social Media" and http://www.uxmag.com/features/streams-of-content-limited-attention
• Idea Epidemics http://www.salon.com/books/feature/2000/03/17/gladwell/index.html
• A blog that started before the Web 2.0 social movement: http://www.corante.com/
• http://gapingvoid.com/2010/07/16/heartbreaking-r-i-p-brandon-haskins/ News of Death on Facebook Strangers Coming Together and http://www.amazon.com/Ignore-Everybody-Other-Keys-Creativity/dp/159184259X
• http://en.wikipedia.org/wiki/The_Wisdom_of_Crowds and http://www.amazon.com/Wisdom-Crowds-James-Surowiecki/dp/0385721706
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