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K-means is a classical clustering algorithm.. Here you have a C++ code for K-means clustering . (Edit: 12/05/013) See also my more rece...
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Wikipedia describes the pseudo-code for computing the nearest neighbour (nn) on an already built KDtree. Here you have a boost implementatio...
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Adaboost is one of my favorite Machine Learning algorithm. The idea is quite intriguing: You start from a set of weak classifiers and learn...
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DBSCAN is a well-known clustering algorithm, which is easy to implement. Quoting Wikipedia: " Basically, a point q is directly densit...
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Skip lists are an interesting randomize data structure for storing pairs of . Skip lists have logaritmic search and insertion time. Here I ...
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typical recursive solution where we tentatively put a queen, if this doesn't violate conditions in column i. Then continue in submatrix...
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It can move either down or right and the board is N x M. How many path does the robot have? Solution: Steps are N+M and we can chose N, ...
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Ideally you should discuss all the different areas that are used
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PCA (Principal Component Analisys) is a classical machine learning method to reduce the dimensionality of a problem. PCA involves the calcu...
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Memory Mapped I/O is a crucial methodology for increasing I/O performance. The standard I/O approach is costly due to system call overhead ...
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Citrix Wants Enterprises To Stop Using Dropbox, And It's Building Them Their Own App Store (CTXS) - [image: Citrix CEO Mark Templeton] Citrix Systems has years of experience delivering apps and data to enterprise users. That's not a bad gig, as evidence...
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HTC One: 5 milioni di unità vendute - Secondo una fonte sentita dal Wall Street Journal, HTC avrebbe già immesso sul mercato 5 milioni di HTC One.8 minutes ago
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Of yesterday's horrific terror attack in London, a former British soldier writes in the Guardian: "W - Of yesterday's horrific terror attack in London, a former British soldier writes in the *Guardian*:* "*We need to recognise that, given the continued role...9 minutes ago
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Still Seeing Post-Penguin Web Spam In Google Results? Let Google Know. - Google’s next generation Penguin update is now live and webmasters and SEOs are carefully assessing how this update has impacted their web sites. Google is...13 minutes ago
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TaskRabbit Debuts Tools For Hiring Ongoing Temp Work As It Further Homes In On Business Users - [image: TaskRabbit for Business]TaskRabbit, the San Francisco startup that has made a name for itself by helping people connect with odd jobs, is now a pla...
24 minutes ago -
TaskRabbit Debuts Tools For Hiring Ongoing Temp Work As It Further Homes In On Business Users - [image: TaskRabbit for Business]TaskRabbit, the San Francisco startup that has made a name for itself by helping people connect with odd jobs, is now a pla...
24 minutes ago
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Twitter unveils new multi-screen deals with “Twitter Amplify” - Twitter is rapidly expanding its "multi-screen" ad offerings through a range of new partnerships with sports, news and other media companies.
27 minutes ago -
Yahoo Scoops Up Another Small Startup: Gaming Platform PlayScale - Yahoo said it had bought PlayScale, a small gaming infrastructure startup for cross-platform gaming. Yahoo has been on a bit of a tear in buying up small c...45 minutes ago
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Google Doodle Salutes North West Mounted Police on 140 Years - While Google in the U.S. is celebrating today with one of its Doodle 4 Google competition winners, Canadian Google users are instead seeing a Google Doodle...54 minutes ago
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Quantum Computing Fast and Slow - I just read two very different science books, Daniel Kahneman's Thinking, Fast and Slow and Scott Aaronson's Quantum Computing since Democritus. Not much t...57 minutes ago
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E-Cat e' ancora una scatola nera - Il primo promesso studio sul reattore mostra ancora troppe lacune. Difficile che la comunita' scientifica accetti i dati presentati senza tentare di confut...1 hour ago
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Comment on 6 Hours of SEO, Social, Crawling and Authority Webinars in 1 Post - Thank you for posting this, I've open a website but it's confuse for me to start SEO my web with no experience, that will be helpful :D2 hours ago
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Facebook: Atlas View Tags Can Now Track Custom Audiences, Partner Categories, Lookalike Audiences - Facebook acquired Atlas Solutions from Microsoft in February and extolled its virtues during its first-quarter earnings call earlier this month. Now, the...4 hours ago
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Penguin 2.0 rolled out today - We started rolling out the next generation of the Penguin webspam algorithm this afternoon (May 22, 2013), and the rollout is now complete. About 2.3% of E...15 hours ago
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FaST-LMM-Set - FaST-LMM-Set extends the capabilities of FaST-LMM to handle associations between sets of variants and phenotype.16 hours ago
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The Grand Bargain - Last week, my team and I sat down over bagels, donuts and coffee (I actually had a couple extra cinnamon fritters, but who’s counting?) to watch the Goog...19 hours ago
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Platform Updates: Operation Developer Love - Since last Wednesday's update, we showcased an improved share dialog on iOSthat offers a lightweight and consistent way to enable sharing from your apps. ...21 hours ago
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“Coming Home” by Wisconsin student wins U.S. 2013 Doodle 4 Google competition - After 130,000 submissions and millions of votes cast, Sabrina Brady of Sparta, Wisc. has been named the 2013 U.S. Doodle 4 Google National Winner. Her dood...
23 hours ago -
Bridges in a graph - An edge in an undirected connected graph is a bridge iff removing it disconnects the graph. For a disconnected undirected graph, definition is similar, a...1 day ago
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Bespoke and beautiful limbs for amputees [#prosthetics] - Bespoke alternative prosthetics boost amputees’ self esteem and style "The UK’s Alternative Limb Project is helping that audience boost their self esteem, ...1 day ago
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Five short links - Photo by Eldeeem The Cartography of Bullshit - A righteous rant against a piece of pop-sociology digging into just how flimsy the underlying statistics are. ...2 days ago
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Grades In - The grades are in for CS 124. Hooray! Interesting trend : freshmen, who make up a small fraction of the class, are highly over-represented in the A and A-...2 days ago
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On Paul Erdos and Kim Kardashian - This year is the centennial of Paul Erdős’s birth. Erdős lived most of his adult life as a traveling mathematician, “couchsurfing,” as we would say now, fr...2 days ago
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Yahoo! And Tumblr: It’s About Display, Streams & Native at Scale - The post Yahoo! And Tumblr: It’s About Display, Streams & Native at Scaleappeared first on John Battelle's Search Blog. The world is atwitter about Tumbl...3 days ago
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Story Reading - I revisited an old story I liked and decided to read it aloud. The story is "Chicken Hawk's Dream" by Al Young and appeared in Spero, 1,2 (1966:19--21). H...3 days ago
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Making Formulas… for Everything—From Pi to the Pink Panther to Sir Isaac Newton - Here at Wolfram Research and at Wolfram|Alpha we love mathematics and computations. Our favorite topics are algorithms, followed by formulas and equations....5 days ago
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Launching the Quantum Artificial Intelligence Lab - Posted by Hartmut Neven, Director of Engineering We believe quantum computing may help solve some of the most challenging computer science problems, partic...1 week ago
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How Google May Rank Web Sites Based on Quality Ratings - Google was granted a patent this week that describes how web sites might be given quality ratings, based upon a model that looks at human ratings for a s...1 week ago
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A multi-screen and conversational search experience - Search has always been about giving you the best answers quickly, regardless of what device you use. At Google I/O today, we gave an update on where we are...
1 week ago -
A multi-screen and conversational search experience - Search has always been about giving you the best answers quickly, regardless of what device you use. At Google I/O today, we gave an update on where we are...
1 week ago
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Videos as (part of the) solution to assignments - Anna and I are running a three-week, intensive, first-year course in which the students use Uppaal to make models of computing systems and games, and to an...1 week ago
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Blogging is dead, but have we fixed anything? - Google Reader is shutting down, but most people moved on long ago. Blogging is dead. To the extent that it lives, it is dominated by professional journali...2 weeks ago
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An invitation to #ComedyFest (BYOB) - This week Twitter is turning into a comedy club, and you’ve got the best seats in the house, all for the price of free. We’re not saying that enjoying your...3 weeks ago
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A reminder about promotional and commerce journalism - Posted by *Richard Gingras, Sr. Director, News & Social Products* * * ** ** *Credibility and trust are longstanding journalistic values, and ones which we...1 month ago
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People Driven Development - At every stage of the software development process, I like to put people first. I’m deliberately using the generic word people instead of the more common u...1 month ago
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A Microsoft Without Sinofsky? - Well, I can't believe it: Microsoft Announces Leadership Changes to Drive Next Wave of Products. People walking the hallways tonight at work certainly can't...6 months ago
also: an old question of mine
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