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Posts

March 28, 2014

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2:29 PM | Beaulieu : que la ville devienne ville
Emile Zola et Guy de Maupassant s’étaient indignés devant le projet de tour Eiffel, Charles-Ferdinand Ramuz décriait la tour Bel-Air, mais à voir les oppositions au projet de tour de Beaulieu, la littérature semble à la peine ! Au-delà du gag sur la position symptomatique de ces quelques grands intellectuels à propos de la modernisation de leur environnement, notons que l’urbanisation est un phénomène qui catalyse […]
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11:15 AM | Citing Nuit Blanche
Logan Grosenick just sent me this most excellent photo and comment: Hi Igor, You might enjoy this (poorly taken) photo of David Donoho citing Nuit Blanche in a talk at Stanford. He did remark that this is not the correct way to do matrix-vector multiplication though, as the vector should be on the right :) Best,LoganCool! Although, for the sake of setting the record straight, I simply, for the life of me, cannot even draw those vectors/matrices with all their color and/or the nice looking […]
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10:00 AM | The Long Post of the Month
Here are some interesting preprints found on ArXiv: Compressed Wannier modes found from an $L_1$ regularized energy functionalFarzin Barekat, Ke Yin, Russel E. Caflisch, Stanley J. Osher, Rongjie Lai,Vidvuds Ozolins(Submitted on 26 Mar 2014)We propose a method for calculating Wannier functions of periodic solids directly from a modified variational principle for the energy, subject to the requirement that the Wannier functions are orthogonal to all their translations […]
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9:27 AM | Friday Links
1. Swanson Premimum RNA & DNA Don’t forget to read the reviews: “I noticed a difference right away. I have more energy, it has helped to lessen my appetite, and my skin took on a healthy glow. I recommend this product … Continue reading →
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4:59 AM | Tested In-Depth: Sony a7 Full-Frame Mirrorless Camera
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4:00 AM | Testing: Sony a7 Full-Frame Mirrorless Camera
For the past three weeks, I've been testing the Sony a7 camera. It's not a camera I bought, nor one provided by Sony--BorrowLenses was kind enough to give me a free rental to test both their service and the camera. And during testing, I've been carrying it around in my camera bag along with the Canon 6D. They're both full-frame cameras, but they couldn't be more different. While the 6D is a traditional DSLR, Sony's a7 is a mirrorless camera. It's more akin to Sony's Alpha NEX lineup of […]

March 27, 2014

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6:57 PM | Teaching Hollywood How To Hack
It took a police raid in 1987 to finally scare Dave Buchwald straight. Well, mostly straight. He wouldn't claim after to have completely reformed after the incident – remaining hatless, his words – but he certainly wasn't interested in ever going to jail.As a member of the hacker group Legion of Doom in his late teens, the raid was meant to scare him. It was a warning, a slap on the wrist. But while Buchwald was never actually charged, others weren't so lucky. The Chicago Tribune […]
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5:00 PM | The Motion Picture Camera: Past, Present and Future
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4:00 PM | The 3D Godzilla Movie That Almost Was
The next big remake of Godzilla is just around the corner, and the buzz from the trailer is pretty good so far. Many fans, myself included, are hoping that this is the Godzilla remake will finally get it right. Many of the right elements are there: nuclear testing, the monster towering over and knocking down skyscrapers (instead of weaving between them), and even hints at other monsters like Rodan. Things that the 1998 film never got. Another difference is that this will be a Godzilla movie […]
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2:47 PM | Race Yourself to a Fitter You With Google Glass (Mobile Fitness #Exergame)
Race Yourself integrates Google Glass information and presents an augmented-reality #exergame that will definitely make you see things that don't resist in reality. I'm wondering if you see... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
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2:33 PM | HODLR and george: Fast Direct Methods for Gaussian Processes and the Analysis of NASA Kepler Mission Data - implementation -
One of the co-author of the following preprint, Leslie Greengard, is one of the authors of the Fast Multipole Method, a matrix factorization method that changed many fields when it appeared. This factorization uses the low rankedness of blocks of dense matrices. I wonder if there are matrices where it would be useful to use a robust PCA on these blocks. Fast Direct Methods for Gaussian Processes and the Analysis of NASA Kepler Mission Data by Sivaram Ambikasaran, […]
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1:00 PM | A Landmark Episode of This Is Only a Test - 3/27/2014
Gary joins Will and Norm to celebrate a milestone, catch up on the last few months, and discuss the implications of Facebook buying Oculus. Enjoy!
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5:50 AM | Inside Adam Savage's Cave: What's in the Mailbag?
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12:42 AM | 10 Things You Should Know about DirectX 12
It’s about efficiency, not new featuresThe new DirectX will add a few new rendering features, but those new features aren’t as important as efficiency. Direct3D 12 has a thinner abstraction layer between the operating system and the hardware. Game developers will have more control over how their code talks to graphics hardware. Overhead is reduced substantially. Time for threads to complete has been reduced by 2-5x in some cases.Only Direct3D 12 has been discussedMost gamers tend to […]

March 26, 2014

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11:59 PM | Jamie Hyneman's Hitchhiking Survival Story
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8:56 PM | A Virtual Locksmith for Proteins
A Virtual Locksmith for Proteins26Mar2014The interaction between proteins and small molecule ligands is often described as akin to a lock and key. The complex, three-dimensional geometry of a protein’s structure creates selective and unique binding sites that are only accessible to certain molecules positioned in just the right way. To discover new drugs that can ward off a bacterial infection or silence a renegade ion channel, scientists have to first determine the protein’s […]
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7:00 PM | What Astronauts Do When There’s Nothing to Do
Whether it’s stoplights, your doctor’s office, or a popular restaurant on Saturday night, waiting is an inescapable aspect of modern life. For many of us, the pain of waiting is rarely much worse than being behind some indecisive couple at the Redbox kiosk. But even that trivial torment can be eased with time-killing apps on your phone. Now imagine that you have a few hours to kill before fulfilling your life’s greatest ambition, with practically nothing to do, all while […]
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6:00 PM | First Ring System Around Asteroid Chariklo found to have two rings
Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger…Read more →
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5:50 PM | CineGlobe 2014 : films et hackathon
CineGlobe est un festival international du film "inspiré par la science" qui a lieu au Globe de la Science et de l’Innovation du CERN. La quatrième édition a eu lieu la semaine passée. Plus de 3000 spectateurs dont votre serviteur y … Lire la suite →
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5:33 PM | Tensor time: Era of Big Data Processing: A New Approach via Tensor Networks and Tensor Decompositions,
From the first paper: This all shows that, compared to matrix decompositions,  Canonical Polyadic Decomposition (CPD) is unique under more natural and relaxed conditions, that only require the components to be “sufficiently different” and their number not unreasonably large. These conditions do not have a matrix counterpart, and are at the heart of tensor based signal separation How does this approach resolve current heuristics and attendant phase […]
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1:47 PM | Paper Review: Approaches to automatic parameter fitting in a microscopy image segmentation pipeline: An exploratory parameter space analysis
Held C, Nattkemper T, Palmisano R, Wittenberg T. Approaches to automatic parameter fitting in a microscopy image segmentation pipeline: An exploratory parameter space analysis. J Pathol Inform 2013;4:5. DOI: 10.4103/2153-3539.109831 I once heard Larry Wasserman claim that all problems in statistics are solved, except … Continue reading →
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7:00 AM | Hands-On: Virtuix Omni Treadmill with Oculus Rift
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5:00 AM | LRRSC : Subspace Clustering by Exploiting a Low-Rank Representation with a Symmetric Constraint - implementation -
Here some new clustering algorithm added to the Advanced Matrix Factorization Jungle page.  Subspace Clustering by Exploiting a Low-Rank Representation with a Symmetric Constraint by Jie Chen, Zhang YiIn this paper, we propose a low-rank representation with symmetric constraint (LRRSC) method for robust subspace clustering. Given a collection of data points approximately drawn from multiple subspaces, the proposed technique can simultaneously recover the dimension and members […]
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1:09 AM | Why Facebook Buying Oculus VR Is Probably a Good Thing
Earlier today, Facebook announced that it was buying virtual reality startup Oculus for $2 billion, and as is the usual, the Internet erupted in panic. Despite actively disliking what Facebook has become and avoiding the service wherever possible, I actually think Facebook buying Oculus is probably a good thing for Oculus, the virtual reality community, VR enthusiasts, and even gamers.If you take Mark Zuckerberg's post regarding the Oculus acquisition at face value, it seems clear that […]

March 25, 2014

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11:50 PM | The Art of Photogrammetry: Replicating Hellboy’s Samaritan Pistol!
We’ve gone over the basic concepts and photography techniques on how to capture ideal images for photogrammetry 3D scanning. Now let's get into the meat of the subject and start processing our data so we can see some results. The case study we're going to use is a replica prop from the movie Hellboy, which I found at the Tested office. I spent an afternoon photographing the prop, and processed it using PhotoScan software. Here's how that process went, and what you can learn from it.Step […]
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9:52 PM | In Brief: Facebook Buys Oculus VR for $2 Billion
Facebook has just announced that it will acquire Oculus VR, the makers of the Oculus Rift, for $2 billion in cash and stock. According to Facebook's news release, the company "plans to extend Oculus’ existing advantage in gaming to new verticals, including communications, media and entertainment, education and other areas. Given these broad potential applications, virtual reality technology is a strong candidate to emerge as the next social and communications platform." Said the Oculus VR […]
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7:27 PM | Photo Gallery: Star Wars Prop and Costume Exhibition
Star Wars: Where Science Meets Imagination is a traveling exhibition organized by Boston's Museum of Science and Lucasfilm. It opened in 2005, and houses props and costumes from all of the Star Wars films, but also emphasizes new areas of research in science and technology as seen through the lens of Star Wars. The exhibit has been traveling around the world since 2006, and made its final stop at The Tech Museum of Innovation in San Jose last October, finishing a 20-venue tour this past […]
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7:22 PM | In Brief: Dark Sky for iOS Is Rad
A few weeks before SXSW, I installed Dark Sky on my phone, and I've been consistently impressed since then. Dark Sky accurately predicted rain in Austin and San Francisco, and even manages to give useful forcasts in San Francisco's microclimates. Because of SF's coastal mountains and fog, it's regularly 50F by the ocean and 85F if you go 15 minutes inland. Even in this hostile environment, Dark Sky gives accurate predictions by comparing your physical location with real-time radar and […]
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6:30 PM | In Brief: Nvidia Announces $3000 Titan Z Video Card
Wasn't it just one month ago that Nvidia announced its GeForce GTX Titan Black video card? Yes, I'm sure it was, because I was in a meeting with them when they mentioned it while briefing me on Maxwell. Titan Black was supposed to be their new super high-end video card--a GTX Titan that ran at an unfettered 889MHz core clock (boosted to 980MHz), and 7GHz GGDR5 memory. Basically a suped-up GTX 780 Ti, priced at $1000. Well that's only one third the price of the new Titan Z video card, announced […]
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6:00 PM | Inside MIT's Tangible Media Group
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