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# Posts

### April 08, 2014

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If you need to pick up a new router today, you should get the Asus RT-AC56U. It’s not the absolute fastest router on the market, so why do we like it? It turns out that most Wi-Fi tests are performed using technology that even the absolute latest laptops won't see for years, and the speeds touted on the box and in many reviews don't actually reflect real-world speeds. Most of us don’t own devices that would take advantage of that extra technology—even if you own the latest […]
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While the internet has a laugh over the White Guys Wearing Oculus Rifts Tumblr, there's some genuine discussion about the potential differences in the way that biological factors may affect a person's experience of virtual reality. To put it bluntly, there's the possibility that women may not be as responsive to current virtual reality tech as men. Danah Boyd, a researcher at Microsoft Research and Assistant Professor at New York University, recently shared the results of a 2000 study she […]
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Petros Boufounos just sent me the following:Igor, If you can post the following opening on Nuit blanche, I would appreciate it. Thanks a lot!PetrosSure thing Petros, here is the announcement:MM2 - Multimedia / Member Research Staff - Signal ProcessingMERL invites applications for an exceptional researcher in the signal processing area, with a particular emphasis on signal acquisition and active sensing technologies. Applicants are expected to hold a Ph.D. degree in Electrical […]
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As Canyi Lu mentions to me by email, the following implementation and paper "propose a general framework for achieving a block diagonal affinity matrix for subspace clustering." It was just added to the Advanced Matrix Factorization Jungle page.Robust and Efficient Subspace Segmentation via Least Squares Regression by Canyi Lu, Hai Min, Zhong-Qiu Zhao, Lin Zhu, De-Shuang Huang, and Shuicheng Yan (and an attendant poster and slides)This paper studies the subspace segmentation […]
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The post Littérature et réseaux sociaux : #MyTopTenBooks appeared first on Martin Grandjean.
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This week, Adam, Will, and Norm discuss their prop wishlists, the things they're always on the lookout for in a variety of categories. Also discussed: the new Cosmos, the old Cosmos, and The Truman Show. Apologies for the lost video in the final minutes of the podcast. Our GoPro failed midway through the recording.
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It's been a while since I've done one of these columns, and that's not because I haven't been taking photos or thinking about photography. On the contrary, I've taken about twice as many photos in the past month than on an average month (just past 22K photos in Lightroom!), both from going to week-long events like SXSW and from testing a bunch of new camera gear. Some of that gear includes new smartphones, like the HTC One M8 that I've been testing, but also new cameras and lenses that I've […]
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Generalized Nonconvex Nonsmooth Low-Rank Minimization by Canyi Lu, Zhouchen Lin, Shuicheng Yan.As surrogate functions of L0-norm, many nonconvex penalty functions have been proposed to enhance the sparse vector recovery. It is easy to extend these nonconvex penalty functions on singular values of a matrix to enhance low-rank matrix recovery. However, different from convex optimization, solving the nonconvex low-rank minimization problem is much more challenging than the nonconvex […]

### April 07, 2014

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An Uncertain Climate Future for Chicago07Apr2014It’s a short question, but a massive one: How will climate change impact Chicago? Scientific studies and climate models tell us that climate change is happening, and make broad forecasts about how different the Earth’s climate will be over the next century. But when it comes to making specific predictions about how climate change will affect the lives of people in a particular city, today’s models don’t provide any clear […]
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For the past week and a half, I've been testing DJI's new Phantom 2 Vision+ quadcopter. The RC quad, which was officially announced yesterday at the annual NAB (National Association of Broadcasters) convention in Las Vegas, is the first real prosumer quadcopter I've flown. And in my testing time with it, I've become completely addicted to flying it. Days and nights are now framed in my mind in terms of when I can find time to take it out to fly, and how many battery recharge cycles I can fit […]
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No summary available for this post.
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Premium: Will and Norm Visit the Game of Thrones Exhibit
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The primary mold for the Zoidberg sculpture is complete, but there are still a few things to do to make this mold functional for casting masks. The first thing I need to do is to drill the bolt holes and add T-nuts to the flange of the mold (the flat parts around the outside that connect the two halves together). Because of the rigidity of the flange, I don't need to put a gajillion bolts in it to keep the mold stable. I start by drilling in a few typical places: near the bottom at the end of […]
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Combining typical workout machines (treadmill, exercise bike, rowing device, cross-stepper, ski ergometer) with #Kinect sensors CSE in Finland created a virtual-reality like environment to... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
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Over the weekend, The Verge posted screenshots and details from a document they claim to show Google's next foray into the living room set-top device business, an interface called "Android TV." The screenshots of the purported platform show a tile-based interface very similar to what you'd find on the Roku, Apple TV, or even Xbox One: large and colorful shortcuts to apps and videos. According to The Verge, Google's vision for Android TV are far-removed from the ambitions laid out in their […]
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No summary available for this post.
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A new week means a new batch of Android apps and games for your consideration. This is the Google Play App Roundup, which brings you the best new and newly updated content in the Play Store every week. Just hit the links to head right to the Play Store and download for yourself.This week we have a new browser that might become your default, a game for the best pilots, and an app that makes books more interactive.Javelin BrowserChrome for Android is better than it once was, but it still doesn't […]
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How to win at 2048 or why 2048 is a stupid game (This post contains a 2048 spoiler) I too was caught up in craze about 2048. Unfortunately, after a while I realised it’s a stupid game. It’s a stupid game, … Continue reading →
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A new cell probe lower bound for Bregman near neighbor search via directed hypercontractivity. Amirali Abdullah and I have been pondering Bregman divergences for a while now. You can read all about them in my previous post on the topic. While they generalize Euclidean geometry in some nice ways, they are also quite nasty. The most important nastiness that they exhibit is asymmetry:$D_\phi(x, y) \ne D_\phi(y, x)$What's worse is that this asymmetry can grow without bound. In particular, […]
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We mentioned Frank-Wolfe recently: Scalable Robust Matrix Recovery: Frank-Wolfe Meets Proximal Methods by Cun Mu, Yuqian Zhang, John Wright, Donald GoldfarbRecovering matrices from compressive and grossly corrupted observations is a fundamental problem in robust statistics, with rich applications in computer vision and machine learning. In theory, under certain conditions, this problem can be solved in polynomial time via a natural convex relaxation, known as Compressive […]

### April 05, 2014

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From Leslie Lamport: Every time code is patched, it becomes a little uglier, harder to understand, harder to maintain, bugs get introduced. If you don’t start with a spec, every piece of code you write is a patch. Which means…Read more ›
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Cases where we can count objects in polynomial time New Interim Dean source—our congrats Mike Sipser is one of the top theorists, especially in complexity theory, and has been Head of the Mathematics Department at MIT since 2004. He is long known for some very clever proofs and his famous survey paper on the status […]

### April 04, 2014

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One of my favorite games of 2012 was FTL. It's a space sim roguelike-like unlike anything The game is deceptively simple and endlessly entertaining. In it, you control the crew of a starship on a desperate mission to stop the rebel alliance, or something like that. The upshot is that you control the crew, assigning them tasks like ship repair, arming the weapons, or cranking up the engines while traversing system after system. Because the game has roguelike elements, each time you play, the map […]
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Computing: The Science of Nearly Everything has been shortlisted for Best Technology Blog in the 2014 Wales Blog Awards, organised by Media Wales and Warwick Emanuel PR. Over 300 entries were received for the competition from across the country this year (after a break in 2013), whittled down to a shortlist of 32 blogs. My […]
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I’m a fan of 30 day challenges. I’ve been a regular participant in AcWriMo for a few years running, and I occasionally do 30 Days of Creativity in June. A few of my colleagues are participating in 30 Days of Biking this month, and Runner’s World famously does a holiday running streak, where you pledge […]
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No summary available for this post.
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Linux is an operating system (OS) for computers, in much the same way as Microsoft Windows (MSW) and Mac OS X are. An operating system is software that runs on a computer, to support applications and control the hardware. Applications are software programs that help you to do useful stuff on the computer, such as…Read more →
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Last night, Pierre Sermanet gave a talk on OverFeat and ConvNets. The meetup was triggered by one of the Pierre's post on Google+ where he mentioned an ArXiv preprint where some folks at KTH [2] used features from OverFeat [1,3] and an SVM to get results they called "astounding" and said so in the title of the paper ( CNN Features off-the-shelf: an Astounding Baseline for Recognition ). The use of such wording is rare (If you recall similar words such as "stunning" or "quite […]
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La carte qui attise la curiosité, le réseau illisible mais fascinant, les graphiques aux sources cachées par la simplicité visuelle,… autant d’éléments désormais récurrents dans les médias, communications politiques et scientifiques qu’il faut savoir décrypter. Si la nature des données est censée conditionner notre façon de les représenter, la marge de manoeuvre reste en effet […]