Roberto Abraham Scaruffi

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When do you expect P vs. NP to be solved? Brian Bi, software engineer and all-around nerd 176 votes I think that P vs NP is by far the most difficult of the Millennium Prize problems, in the sense that there is a general belief that the mathematical community is nowhere n... Read More » How does the Netflix movie recommendation algorithm work? Xavier Amatriain, Research/Engineering Director @ Netfl... 21 votes We have talked and published extensively about this topic. Let me start by saying that there are many recommendation algorithms at Netflix. People usually refer to the "rat... Read More » Who are the most famous hackers of all time? Jon Mixon 39 votes John Draper aka Cap’n Crunch, is a well-known phreaker/hacker from the early days of IT. His exploits using telephony and early PC software are nearly as legendary as his o... Read More » Which is better for data analysis: R or Python? Adam Profitt 43 votes I use both. Python has a pretty impressive machine learning library, and can be used for making web apps, desktop software, as well as command line utilities. It's usually ... Read More » What are Thomas Cormen's favorite programming language and operating system? Thomas Cormen, Professor of Computer Science at Dart... 366 votes I have no one favorite language. Lately, most of the code I've written has been in Python. That's partly because I teach our introductory course and we teach Python in th... Read More » How can I solve this problem to find ? Adam Merberg 36 votes Note that  and . Thus, the equation is equivalent to ... Read More » How can you count from 1 to 10 using only 5 fingers? Jessica Su, CS PhD student at Stanford 1.5k votes Use binary! Let 1 represent a raised finger and 0 represent a lowered finger. Then we can count to ten like so: ... Read More » What do scientists make of SEO "experts"? Peter Meyers, Marketing Scientist 112 votes I work in SEO, and I'm a scientist. Specifically, I'm a Marketing Scientist for SEOmoz, and I have a Ph.D. in Human Experimental Psychology (my undergraduate work was half ... Read More » When we say that  does not have an integral, what does it mean? David Joyce, always learning 40 votes I don't know what was meant by that. What is the context of the question? The function  is continuous so it's integrable. Its antiderivative is ... Read More » What are some things that neuroscientists know but most people don't? Lidia Stanton, Not young enough to know everything 2.9k votes Neuroscientists and cognitive psychologists joke that reading is a form of brainwashing, which by far, is good for people, despite making us defenceless against an army of ... Read More »