Archive for September, 2013

KDD 2013 Day 3

Friday, September 6th, 2013

The keynote today is Andrew Ng on his opening learning website, Couresa. I really admire his mission, which is to provide education to everyone on this planet for free. In my opinion, education is one key differentiator between human and other animals. We human evolved to be together and learn some language and truth about the world. As Andrew said, it is shocking to hear that some people in the world still think education is only for elites. I for one, am the beneficial of education, so probably I’m biased. I strongly encourage everyone to take a look at the website.



KDD 2013 Day 2

Tuesday, September 3rd, 2013

The keynote speaker today is Raghu Ramakrishnan from Microsoft. The title of his presentation is “Scale-out beyond Map-Reduce“. He presented his work on a better than MapReduce solution for machine learning. As he argued MapReduce is not meant for iterative learning at all, that pretty much means not suite for machine learning. His work is called REEF which is built on top of YARN, a resource management system. For my part, I’m very glad to hear such decisive comment on iterative learning on MapReduce. Last year, indeed I spent time on running iterative algorithms on MapReduce, which concluded same.

Kevin Bache presented an interesting research on “Text-based measures of document diversity“. He conducted a topic modeling first, and then use the word distribution vectors for topics to project document diversity score. As he said in front of his poster, one doesn’t need to stick to a particular topic model since his score function is quite generic.