Joseph Adler has many years of experience in data mining and data analysis at companies including DoubleClick, American Express, and VeriSign. He graduated from MIT with an Sc.B and M.Eng in Computer Science and Electrical Engineering from MIT. He is the inventor of several patents for computer security and cryptography, and the author of Baseball Hacks. Currently, he is a senior data scientist at LinkedIn.
Recently, I became interested in maximizing lookup performance in R. Many problems require looking up values in tables. I decided to perform some tests to show how different lookup mechanisms performed in R. If you're not familiar with R, here's... read more
Over the past few decades, statisticians have developed some very sophisticated modeling techniques for finding patterns in data sets. Today, I stumbled on a great analysis of what statistical methods academic bioinformatics researchers use most frequently. It turns out that they rely mostly on simple methods. read more
Last Monday night, I was watching the Ravens playing the Packers at Green Bay. Mostly, I was watching penalties. This game featured an astounding number of penalty calls: 23 calls, 310 yards. I wondered whether penalties really affect the outcome of football games. Here's what I figured out in 15… read more