Big O Notation Primer
If you’ve ever competed in any of our data science challenges you’ve probably seen a discussion or tutorial that looks like: Let f, g be positive non-decreasing functions defined on positive integers. We say that f (N) is O(g(N)) (read: f is big-oh of g) if for some c and N0 the following condition holds… These symbols may seem strange those that haven't competed in algorithm
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OSX Menubar Topcoder Challenge Alertinator
I was going through some of challenges and submissions for last fall's Learn Swift and ran an awesome challenge that I had forgotten to blog about! This was one of my favorite challenge ideas: I wanted a little OSX app that runs in the menubar of my Mac and alerts me of new challenges posted to topcoder using notifications. We had 5 submissions but my buddy eucuepo stole the show with the sheer
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MemSQL is the Sponsor of the TCO15 SF Regional Event!
We are excited to announce the 2015 Topcoder Open San Francisco Regional Event sponsored by MemSQL! On June 20, 2015, MemSQL will be hosting the TCO15 San Francisco regional event at their HQ in downtown San Francisco. Register and view all the details here. This event will be hosting TCO15 Algorithm Competition Round 2B* as well as a $5,000 Hackathon. Event registration is open to all Topcoder
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AppXpress – Living Progress Landing Page Design Challenge!
Ready for another AppXpress challenge just in time for the weekend? Well thankfully we've got you covered, and we think you'll love it! Project Overview In this challenge we are looking to create a landing page for an initiative called living progress. This landing page will be used to crowdsource ideas to support the advantages of bringing people out of poverty by focusing on challenges series
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New Salesforce Lightning Component Framework Learning Resources
We ran our Salesforce1 Lightning series of challenges last fall after the announcement at Dreamforce with much success. Since the framework was beta we knew that we were writing code on the bleeding edge. There was a lot of trial and error involved but you came through in the end by building a large number of awesome components. It’s been roughly six months since the release so we are
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Start Learning Swift & iOS Development … NOW!
A couple of weeks ago our CEO made a significant announcement that will affect the topcoder community for the foreseeable future. Apple recently revealed that they are partnering with a number of companies to bring iOS solutions to market to capture the enterprise. Appirio is thrilled to be one of these partners and we’ll be leveraging the talent of the topcoder community to deliver these
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Google Maps Developer Meetups Coming to A City Near You!
Our friends at Google are hitting the road—they are hosting a series of developer meetups in Boulder, Chicago and New York. As a way to bring the excitement of Google I/O to our developer community. They’re visiting these cities across the U.S. to share how developers can use the Google Maps APIs in their apps and websites and we want you to join! The meetups will feature sessions with Google
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A Simple WebApp using Google Apps Scripts
As an evangelist, I travel to universities and educate students about the platform. As a part of my workshop, I usually conduct a closed SRM (Single Round Match) for the students and declare the winners of the contest. The Problem Sometimes the students want to know their rank and score long after the conclusion of the event. However, previous SRM results are unloaded as soon as new contests are
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What’s New at Topcoder: May 11, 2015
Member of the Month is back, and the Algorithm portion of TCO15 is underway! An inside look at current progress and plans for the rest of the year was released from our CEO, Chris Barbin. Read that message here. Here's a look at this month's updates: Website & Platform Updates The font kit for the website has been changed to better accommodate visitors from China. We've improved the stability
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Convolutional Neural Network
Neural networks have been around for a number of decades now and have seen their ups and downs. In particular Convolutional Neural Network (CNN) has proven to be extremely powerful for image recognition problems. Before discussing CNN let’s revisit the concepts of neural networks again and then see how CCN help. Neural Networks (NN) are collections of neurons that are connected in an acyclic
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