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LINKED, by Albert-Laszlo Barabasi

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Scott Strand

on 28 April 2014

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Transcript of LINKED, by Albert-Laszlo Barabasi

Stanley Milgram Experiment
Gaetan Dugas

Webs and Connections

Six Degrees of Separation

Technology of Revealing Networks
Scott Strand, Stephen Ku, John Rodgers, Levi Simpson, Karenna Pederson
Hollywood Example
What are the six degrees of separation?
History of the six degrees of separation
Applying the idea to Management
Cocktail Party Example
Social Media Example
Dorm Example
How Technology Reveals Networks
Erdos Number Project
Internet as a Network
The World is Shrinking
by Albert-Laszlo Barabasi

Similarity and Proximity

Connection's Connections

Expanding Network
The network of Hollywood

Collaboration's impact
Social Media is another great example, and great evidence, of how networks connect. The six degrees of separation heavily weigh into the entire aspect and goal of social media.
Dorms on a college campus are a great source to hear about miscellaneous news, gossip, and parties. The reason for this is word-of-mouth and the idea of six degrees of separation.
Cocktail Party Example
Cocktail Party Example
Hollywood Example
Dorm Example
Dorm Example
The six degrees of separation is a theory of networks.

The idea is that for any two given people on earth, you can link them via an average of about six close acquaintances.

This distance is much less for many people, and some people are outliers with more than six, thus making six the average number needed to get from person to person.
It was first written about by poet and writer Frigyes Karinthy in 1912.

The idea was later rediscovered by Harvard professor Stanley Milgram in 1967.

The idea was popularized by 3 college students in 1994 as the six degrees of Kevin Bacon.
Kevin Bacon, and other actors who have worked on hundreds of projects, have an average separation of less than three.

Being active and creating connections with a lot of people can make it easy to navigate networks.

This is important in the business world because finding a job, and many other tasks, can be accomplished faster, better and easier with a large network of resources.
Smaller groups

Spreading out
A test


Word of Mouth

A secret no longer
Six Degrees of Kevin Bacon

The bigger the celebrity, the bigger the network...in a smaller degree of separation


Multiple Dorms

Mystery Guests?

Social Media Example
LinkedIn's purpose

Which degree...one, two, or three?
Social Media Example
The difference

Mutual Friends

Erdos Number
Much like “six degrees from Kevin Bacon”
Mathematical world prides itself on Erdos Separation
How could such a network be easily seen?
Jerry Grossman’s website
This website, created and maintained by Jerry Grossman, extensively lists everyone in the mathematical world with an Erdos number of 1 or 2.

It allows mathematicians to search who they have coauthored a paper with.
Reveals shared connections and networks
“People you may know”
“X mutual friends”
Having 1000s of friends
Better term would be “acquaintances”
More important to have a large network than close knit small one
Classic scenario of a growing network

Complexity matches with that of a human brain

One of the most complex networks out there today
On average, people are 19 clicks away from everybody on the internet

No one is left out from the worldwide social net

Social links that would have died out hundreds of years ago are kept alive and easily activated because of the internet

Can usually find anyone on the internet at any time, any place
Revealing Our Networks
Importance of understanding our Networks
Jobs from “Strong ties” (i.e. close friends) - 16.7%
Jobs from “weak ties” (i.e. acquaintances) - 27.8%
Reason? Our close friends are exposed to the same information as we are.
Harnessing power of networks

Cultivating and maintaining relationships

Using relationships as leverage
Full transcript