Food Chain – nature’s critical network for survival
A food chain is a directed graph which links together the eating habits of organisms in an ecosystem. Depends on the scale of the ecosystem, the network of a food chain can be consisted of either only a few nodes and easily traceable paths, or a complex graph with complex edges. Having the idea of […]
Concept Graph Learning
A recent WSDM paper by Yang et. al explores a novel machine learning technique called Concept Graph Learning, which can be used to predict prerequisite relationships between educational courses. The technique uses existing graphs of prerequisite dependencies between university courses (e.g., the Cornell CS flowchart) to learn a graph of prerequisite dependencies between “universal concepts”, which […]
Who’s your friend?
In class we have been looking into network graphs and how they relate to people in social media. A facebook engineer took data of around 500 million people using facebook and made a worldwide social media graph in 2010. We can only assume that in five years the amount of people on social media and […]
New Friends in Novel Settings
According to a New York Times article which studied the development of new friendships, novel circumstances are critical for new friendship formation. The largest example mentioned was the development of new friendships among freshman students at a college or university setting during the first few weeks of the academic semester. During this time frame, the […]
Social Networks of Bullies and Victims in School
I read a study (“Social network predictors of bullying and victimization”) that examined the social networks of bullies, victims, and aggressive victims (people who are both victims and bullies). Bullies are ~7-15% of students, have dominant personalities, and seem to have above-average sociability and leadership skills. Victims are ~2-10% of students and are observed to […]
Social Networking for Scientists?
Social networking sites and apps have undoubtedly changed the way people connect to one another. Facebook has changed the way we connect with our friends. Dating apps like Tinder have transformed the dating scene. And now, social networking may be altering the world of Academia. ResearchGate, one of the leading social networking sites for scientists, […]
Las Madres and Local Bridges
It was 1978. Argentinians had been suffering under a brutally repressive and morally bankrupt military dictatorship for two years. The “Dirty War” was at its peak. Despite its political troubles, the nation was preparing to host one of the most prestigious international competitions, the World Cup. To many, the tournament seemed an implicit acceptance by […]
The Expansion of Apple, Yet Again
http://www.nytimes.com/2015/09/07/technology/personaltech/new-apple-tv-is-said-to-focus-on-games-challenging-traditional-consoles.html?ref=technology&_r=0 Apple is once again looking to expand and this time with the already present Apple TV product. It is expected to announce in the coming days that there will be a new Apple TV with distinct features unlike the current product. The new TV is said to have a remote that can also be used […]
Seahawks lose in final second of Super Bowl-was it the right play call?
Game theory can be used to analyze all aspects of competition. In this case, we see the analysis of Pete Carrol’s choice of play during the final seconds of the 2014 Super Bowl. The Seahawks were within 5 yards of the end zone and have one of the best running backs in the league (Marshawn […]
What makes LinkedIn so great?
What makes LinkedIn so great? Social media websites like Facebook, Twitter, Tinder, and many more have changed the way we interact with our our immediate circle of friends and the world at large. Social media sites have kick started thousands of careers by allowing one individual to send his/her message across the globe. Many of […]
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