Posts

September 05, 2014

+
12:24 PM | You thought signal processing on graphs was hard? The Graph Signal Processing Toolbox - implementation -
On his twitter feed, Pierre mentioned the following implementation release:Announcing the Graph Signal Processing Toolbox - it's open, free. Have fun processing data on graphs and networks !!! http://t.co/DKMnAQeNSf— Pierre Vandergheynst (@trekkinglemon) September 4, 2014From the page:"The Graph Signal Processing toolbox is an easy to use matlab toolbox that performs a wide variety of filtering on graphs. You can create all sorts of filterbanks including wavelets and Gabor. It is […]
+
10:05 AM | CSJob: Postdoc, ENS Paris, Statistical Physics Approach to Reconstruction in Compressed Sensing
Florent just sent me the following: Dear friends and colleagues,I would like to invite applications for postdoctoral positions in my group in Ecole Normale Superieure in Paris, in the context of the project SPARCS (Statistical Physics Approach to Reconstruction in Compressed Sensing) The appointments are intended to start in the fall of 2015 (or even sooner) and will be for 2 years.The candidates can come from different areas (Statistical Physics, Signal Processing, Applied Mathematics, […]
+
8:01 AM | OASIS: Season Two
Today is the opening of Second Season in OASIS, our experimental play/library/living-room space in School of Information Sciences. There will be bubbly wine and heady ideas available in OASIS today, starting 2 pm – welcome! The invitation is here: http://oasis.uta.fi/season-2-opening-oasis/ Pictured: … Continue reading →

September 04, 2014

+
8:06 PM | 3D-Printed Daft Punk Helmet and Ducati Bike
Here are two really awesome 3D printing projects that were brought to my attention today. Noe from Adafruit sent over their latest DIY guide to making your own 3D printed Daft Punk-inspired helmet, equipped with LED lights. The helmet shell is actually one solid piece, which you can download from Thingiverse and scale to your head. Printed with translucent PLA, Adafruit chose the visor color for their filament, and painted the gold around the outside for the helmet frame. The visor can also be […]
+
7:30 PM | The Army’s Ersatz Gliders of WWII
If necessity is the mother of invention, then wartime must be the mother of desperate ingenuity. There are countless stories throughout history of imaginative soldiers figuring out how to make do, and even thrive with whatever equipment was available. Sometimes, this sort of grassroots pragmatism occurred on a large scale. For instance, when the US Army Air Corps (USAAC ) urgently needed aircraft to train thousands of glider pilots during World War 2, they realized that the answer was already […]
+
7:00 PM | In Brief: Oculus VR Updates from IFA
We're unfortunately not at IFA this week, but there are lots of good reports coming out from reporters there checking out hew mobile devices, like Samsung's Gear VR headset. Oculus VR is there to support that partnership, and interviews with the Oculus team are revealing few new bits of information about the state of the first consumer version release. In an interview with Eurogamer, Oculus founder Palmer Luckey indicated that CV1 would stay between $200 and $400, which is in line with past […]
+
6:00 PM | Photo Gallery: Comparing the Cain Replica to the Original
Our video today showcased the Chronicle Collectibles Cain robot miniature, a painstaking recreation of the stop-motion puppet used in Robocop 2. We were told how each piece of the puppet was molded and cast for the replica, but it's difficult to appreciate the amount of precision that went into the model without looking at it up close. So here's a small gallery of photos I took comparing Chronicle's replica to the original to give you a sense of how accurate it is. I was also pleased to learn […]
+
1:00 PM | Episode 270 - PAX Prime Report - 9/04/2014
This week, Will, Norm, and Jeremy discuss the latest news from IFA, the latest on Oculus and Samsung's VR goggles, and PAX Prime highlights, including IDARB, Lovers In a Dangerous Spacetime, and Keep Talking and No One Explodes. Enjoy!
+
8:32 AM | Back from summer break!
I’m back from summer break and next week, I’ll be in Leuven for TCMM2014, then in Norwich (UK) the following week. Posts for tomorrow (Friday Links) and next week are already scheduled.
+
6:33 AM | Replicating the Original Robocop 2 Cain Stop-Motion Puppet
No summary available for this post.
+
5:00 AM | Enhancing Sparsity and Resolution via Reweighted Atomic Norm Minimization
Yet another clear use of sharp phase transitions as an acid test for the purpose of delineating what algorithm does well and which one does ... less well. Outstanding ! Let us hope the implementation comes about at some point in time in the future:Enhancing Sparsity and Resolution via Reweighted Atomic Norm Minimization by Zai Yang, Lihua XieThe mathematical theory of super-resolution developed recently by Cand\`{e}s and Fernandes-Granda states that a continuous, sparse frequency […]
+
5:00 AM | Thesis: Compressed sensingand dimensionality reduction for unsupervised learning - Anthony Bourrier
Here is another thesis of interest: Compressed sensingand dimensionality reduction for unsupervised learning by Anthony BourrierRésumé : Cette thèse est motivée par la perspective de rapprochement entre traitement du signal et apprentissage statistique, et plus particulièrement par l'exploitation de techniques d'échantillonnage compressé afin de réduire le coût de tâches d'apprentissage. Après avoir rappelé […]

September 03, 2014

+
10:07 PM | Bits to Atoms: Building the Millenbaugh Motivator, Part 5
After three months of work, the Millenbaugh Motivator has been completed and the parts have been delivered. As Adam has demonstrated before, finishing is extremely important and he immediately got to work on the Motivator parts in order to detail and finish it along with his Mecha-Hand for Comic-Con. There were some difficulties with the crankshaft due to tight tolerances and the addition of paint, but I’m working on a revised version for him to use later.Adam's painted Motivator.Now that […]
+
9:37 PM | Steep learning curves you wish you’d climbed sooner
I asked on Twitter today “What steep learning curves do you wish you’d climbed sooner?” Here’s a summary of the replies: R Version control Linear algebra Advanced math Bayesian statistics Category theory Foreign languages How to not waste time Women IgorCarron‘s response didn’t fit into the list above. He said “I wish I had known […]
+
9:00 PM | Paying Tribute to the Twilight Zone
The Twilight Zone first debuted on CBS in October 2, 1959, and ended on June 19, 1964, with 156 episodes in all. Not every episode was a winner, and there were varying degrees of greatness for many Twilight Zone installments, but the show’s lasting impact after half a century is still remarkable.The show is remembered for its many great elements: the strong moral lessons of the show, the skillful storytelling, the zappers at the end, the wonderful, moody cinematography, Rod […]
+
7:24 PM | Parallelizing GNU #Make 4 in a #SLURM infrastructure/cluster
SLURM (https://computing.llnl.gov/linux/slurm/slurm.html) is The Simple Linux Utility for Resource Management . It's an open source, fault-tolerant, and highly scalable cluster management and job scheduling system for large and small Linux clusters. A patch for GNU Make version 3.81 is available as part of the SLURM distribution in https://github.com/SchedMD/slurm/blob/master/contribs/
+
4:38 PM | Samsung and Oculus VR Announce the Gear VR Innovator Edition HMD
At this week's IFA conference in Berlin, Samsung and Oculus VR announced the long-rumored VR headset that we've been hearing about for months. It's called the Samsung Gear VR Innovator Edition, and will be an accessory to Samsung's new Galaxy Note 4 smartphones. As expected, you plug in Samsung's phone--which utilizes a massive 5.7-inch 1440p AMOLED display--into the headset for an untethered VR experience. Apparently, Oculus has been working with Samsung for over a year on the device, […]
+
4:30 PM | Some thoughts on invertibility: Signal recovery from Pooling Representations, Determination of Nonlinear Genetic Architecture using Compressed Sensing
You probably recall this entry back in November, the paper has been augmented since [1] and was one of the talks at ICML. Here is the video: Signal recovery from Pooling Representations by Joan Bruna Estrach, Arthur Szlam, Yann LeCunIn the paper [1], the authors essentially try to see which signal can be reconstructed after having gone through a  nonlinear transformation that is somewhat typical of those found in current neural network architectures. Some thoughts below:In order to provide […]
+
11:55 AM | Prioritizing rest
Earlier this year, in a YOLO/carpe diem moment (or possibly a moment of insanity), I decided to sign up for a marathon. I’d been contemplating the marathon for a while as something I’d do “someday”. But I’d been running injury-free for over a year, completed a few half-marathons and was enjoying running longer distances, and […]
+
7:00 AM | This Is the Best Budget Laptop You Can Buy
This post was done in partnership with The Wirecutter. Read the original full article below at TheWirecutter.comAfter considering all the major laptops in its price range, I decided that if I had to buy a Windows laptop for $600 or less, I’d get the ~$580 version of the Lenovo IdeaPad Flex 2 14.It’s not perfect—because all budget laptops have trade offs—but it’s the best of its kind. And for its price it succeeds in a lot of the most important areas: it’ll […]
+
6:52 AM | Flying the Birdly Virtual Reality Simulator
No summary available for this post.
+
5:00 AM | Sparse Generalized Eigenvalue Problem via Smooth Optimization
To be filed under "yet another matrix factorization" in the Advanced Matrix Factorization Jungle page. This time the factorization aims at extracting the leading sparse generalized eigenvector.Sparse Generalized Eigenvalue Problem via Smooth Optimization by Junxiao Song, Prabhu Babu, Daniel P. PalomarIn this paper, we consider an $\ell_{0}$-norm penalized formulation of the generalized eigenvalue problem (GEP), aimed at extracting the leading sparse generalized eigenvector of a matrix […]
+
12:00 AM | No More Peek-a-Boo: Inventing a Modern Periscope
The physical design and internal mechanics of a periscope has changed quite a bit over the years, but there’s one thing that still remains the same: in order to see what’s going on above the water even the most high-tech modern periscope still has to poke it’s little head out above the surface. And when you’re a military machine whose main goal is stealth that isn’t exactly a smart move. That’s why, for at least a decade, some scientists and engineers have […]

September 02, 2014

+
11:00 PM | Designing Underwater Robots for Deeper Dives
In May, the remotely operated underwater vehicle Nereus descended 10,000m to the bottom of the Kermadec Trench, one of the ocean’s deepest, and never came back. It’s believed that Nereus—a hybrid remotely operated vehicle, or ROV, that could also operate autonomously—likely imploded. The pressure at such depths can be as great as 16,000 pounds per square inch.What’s weird is that Nereus was *designed* to withstand such pressure. That’s what made it unique. […]
+
10:43 PM | In Brief: Nintendo's New 3DS More Buttons, Right Thumbstick
Right before PAX weekend, Nintendo announced a refresh to their 3DS handheld line, dubbed the "New Nintendo 3DS". Coming out in both regular and XL sizes, these new consoles are slightly larger than the current models, but adds extra shoulder buttons and a second right circle pad (thumbstick) located above the regular four face buttons. The small circle pad may look awkwardly sized and positioned, but we're withholding judgement until we get to use it. Also added is NFC support for Nintendo's […]
+
10:23 PM | Testing: The LG G3 Android Smartphone
Just a few years ago LG was not considered a serious player in most smartphone markets. The most desirable devices the company made all wore Google's Nexus badge, but its own phones fell victim to questionable software and the whims of partner carriers. The LG G2 won some fans for its slick design and passable software, but it's the new LG G3 that might have a shot at completing LG's Android turnaround.LG isn't playing second banana to Samsung in South Korea or anywhere else this time around. […]
+
10:13 PM | 3D Printing Material Mimics Balsa Wood Strengths
No summary available for this post.
+
9:58 PM | In Brief: Death Valley's Sailing Stones Mystery Solved
The mystery of Death Valley's famous moving stones has finally been solved. For almost a century, geologists have been puzzled by the movement of stoves along a dry lake bed called Racetrack Playa in the California desert. The moving stones, which weigh up to 700 pounds, travelled up to 3000 feet in their journey, seemingly without any human or animal assistance. To study their movements, geologists in 2011 tagged 15 rocks with GPS loggers and time-lapse cameras, and even buried magnetic […]
+
9:00 PM | In Brief: Intel Launches Haswell-E CPU, X99 Chipset
Late last week, Intel officially launched Haswell-E, its ultra high-end Desktop CPU based on its Haswell architecture. The follow-up to Ivy Bridge-E is Intel's first eight-core desktop CPU, as previous Extreme Edition desktop CPUs topped out at six cores while eight and more cores were reserved for the server market. To run the Core i7-5960X, Intel also launched the X99 chipset, which is its first to support DDR4 memory. Yep, DDR4 is finally here to desktops. Built on the same 22nm process that […]
+
4:08 PM | Enriching the Frankl Conjecture
See a number, make a set Henning Bruhn and Oliver Schaudt are mathematicians or computer scientists, or both. They are currently working in Germany, but wrote their survey on the Frankl Conjecture (FC) while working together in Paris. Schaudt is also known as an inventor of successful mathematical games. Today Ken and I wish to […]
345678
217 Results