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An NLP Defense Against Sybil Attacks

Reputation and recommendation systems in online platforms are important because they help decrease information asymmetry by providing information that users would not be able to get otherwise (e.g. product reviews, hotel reviews). This both makes evaluating and filtering easier for users, and locks users in to systems because if someone has built up a good […]

Social Network Analysis of OSS

Mozilla Firefox, Apache, Linux, Android, W3C, MySql, etc. all these software solutions that we use widely today have one thing in common: they are all open source projects. Today, there are close to 5000 active and popular open source software projects which are revolutionizing the software world in a big way. It has been recorded […]

Samsung Admits to Paying for Deceitful Product Reviews

In numerous lectures and problem sets, we discussed the importance of reputations in the online marketplace. For example, we figured out the probabilities of an eBay seller deceiving a buyer given that they have a certain amount of positive and negative ratings. This is important because when shopping on the internet, consumers have a lot […]

The Mumbai Dabbawala Network

Whenever I go into my thinking mode to analyze applications of networks, my natural instinct leads me to examples that have heavy reliance on technology or internet such as: study of online sites, or online auction mechanisms, Ecommerce or social networking. But, amazingly network behavior is prominent in our day to day lives. There are […]

The Music Connection

Music has become an essential part of a person’s life these days; it is not hard to go for a walk around campus and see several pairs of headphones in use as people jam to their tunes. The role of music in daily life has become so prominent that it is no wonder why social […]

CROWDFUNDING: An Internet Market Place by Amazon

Two weeks ago during the spring break, while I had nothing interesting to do in Ithaca, I was surfing through the internet and came across a super exciting marketplace for work. The website had thousands of tasks listed and I just had to select the most interesting task that I wanted to perform.  It was […]

The Friendship Paradox The friendship paradox is a statistical phenomenon where the number of friends a person has is probably less than the average number of friends that their friends have. To show an example of this, we can analyze a simple example where there are three people A, B, and C. B is friends with both […]

Murder: Distributed, Large-Scale Code Deployment

Imagine running a popular web service that gets millions of hits per day. To maintain scalability, the operational load is distributed across thousands of servers, hosted in datacenters across the globe. All of these servers, known as nodes, run the same version of your system’s software, and thus need to be kept in sync. Now […]

The prisoners dilemma with a more hopeful infinite horizon

This week in class, we have been covering the prisoners dilemma with an infinite horizon.  In this post I will discuss how the extended prisoners dilemma problem represents the global applies to countries and how the equilibrium strategies do not express the realities of real world cooperation. First for anyone who is unfamiliar with the […]

Global Super-Entity

In a very interesting study, researchers found that a “small, tightly woven network of companies, mostly banks, wields disproportionate control over the global economy”(Boyle 2011). This is very similar to the claim that “Occupy Wall Street” had, which said that the 1% owns the world and that too much power in the hands of the […]