Posts

April 22, 2015

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10:22 PM | Star Wars Celebration: Meet Roxy the Rancor
No summary available for this post.
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9:54 PM | CSJob: Post-Doc: Learning Representations for Large Scale Multivariate Data
Jerome Bobin sent me the following opportunity the other day:    POST-DOC : LEARNING REPRESENTATIONS FOR LARGE-SCALE MULTIVARIATE DATA.The concept of sparsity and sparse signal representations has led to the development of very efficient analysis methods in imaging science. Most state-of-the-art solutions to classical inverse problems in imaging are grounded on sparsity: denoising, deconvolution, inpainting, blind source separation, etc [SMF10]. Fixed or analytic signal […]
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5:00 PM | Google Announces Project Fi Wireless Service
Google is now selling cellular internet service. Kind of. Today, they announced Project Fi, a MVNO service that taps into multiple-cellular networks as well as Wi-Fi. As a Mobile Virtual Network Operator, Google doesn't own the network it's selling service on--Project Fi piggybacks on Sprint and T-Mobile, and the trick is that compatible phones and SIM cards can seamlessly switch between the networks and open Wi-Fi hotspots without a break in connection (with data encrypted), even if you're […]
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4:28 PM | 2015 Atlanta Pen Show
Tl;dr: I went to the Atlanta Pen Show. It was fun. I had originally planned on going to Atlanta on Friday, spending the night, and taking Saturday at the pen show, going to seminars and having a wonderful time. Then, I remembered that I'm an antisocial misanthrope with shyness issues from Texas, would be unlikely to actually speak to anyone, and that this is apparently a send-the-IRS-much-money year, so I waited until Saturday morning. I arose somewhat early, patted the Dianne, Penelope […]
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4:14 PM | Case Against Cases
How to avoid too many cases at least some of the time Theon of Alexandria was history’s main editor of Euclid’s Elements. Today I want to talk about case analysis proofs. The connection is that Euclid is sometimes credited with inventing case analysis proofs. He can also be credited as the first to evince a […]
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4:00 PM | How to Get into Hobby RC: Testing AS3X Artificial Stabilization
Of all the recent innovations in RC technology (and there have been many), one of the most substantial has been the development of artificial stabilization systems. They began several years ago as 1-axis gyros intended to tame the often unwieldy yaw behavior of RC helicopters. Now these devices are offered in 3-axis designs that can also assist the pilots of multi-rotors and all types of airplanes.As artificial stabilization systems have become more refined, capable, and affordable, they have […]
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3:30 PM | A Visit to jAdis' Weird Science Prop Shop
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7:08 AM | “Is There Something Mysterious About Math?”
When it rains, it pours: after not blogging for a month, I now have a second thing to blog about in as many days.  Aeon, an online magazine, asked me to write a short essay responding to the question above, so I did.  My essay is here.  Spoiler alert: my thesis is that yes, there’s […]
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6:00 AM | Tested Goes to Star Wars Celebration 2015!
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1:14 AM | Living with Photography: Adobe Lightroom 6 Review
The image management and editing options for enthusiast and professional photographers is fairly limited. There are a few really good open-source applications for processing RAW photos, but with the demise of Apples Aperture, Adobe's Lightroom is the most popular choice. It's become the go-to program for photographers to need process the hundreds or even thousands of photos from day and event shoots, and it's what I've been using for all of my photo work since I got my DSLR. I've said it […]

April 21, 2015

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8:30 PM | The Best Smart Thermostat
This post was done in partnership with The Wirecutter, a list of the best technology to buy. Read the full article below atTheWirecutter.com.Three years after the Nest Learning Thermostat's debut, the second-gen Nest continues to offer the best combination of style and substance of any thermostat. Its software and apps are solid and elegant, it learns your routines and the particulars of your house, and it's easy to change the temperature from your phone or computer so you won't have to get up […]
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7:00 PM | Engineering the Ideal Robotic Fish
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4:30 PM | In Brief: Ikea's Concept Kitchen 2025 Exhibit
Ikea's vision of the future kitchen isn't based on furniture that's easier to assemble, but furniture that's more versatile. In its Concept Kitchen 2025 project, the swedish retailer collaborated with design students and design firm Ideo to produce four prototype pieces for a future where home living space is anticipated to be scarce. A multi-purpose projection-mapped table, a grey water recycling sink, a smart recycling system, and sensor-imbued shelving system populate this kitchen. Ikea's […]
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3:16 PM | Thesis: Empirical-Bayes Approaches to Recovery of Structured Spar se Signals via Approximate Message Passing, Jeremy Vila
  Off of the press, here is the thesis of Jeremy Vila  one of the Map Makers: Empirical-Bayes Approaches to Recovery of Structured Sparse Signals via Approximate Message Passing. In recent years, there have been massive increases in both the dimensionality and sample sizes of data due to ever-increasing consumer demand coupled with relatively inexpensive sensing technologies. These high-dimensional datasets bring challenges such as complexity, along with numerous opportunities. […]
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12:32 PM | Two papers
Just to get myself back into the habit of blogging: For those of you who don’t read Lance’s and Bill’s blog, there was a pretty significant breakthrough in complexity theory announced last week.  (And yes, I’m now spending one of the two or so uses of the word “breakthrough” that I allow myself per year.) […]
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10:00 AM | Watches - 4/21/2015
Adam, Will, and Norm discuss their favorite watches, as well as their thoughts about the upcoming Apple Watch and smart watches in general.
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5:00 AM | Streaming: Memory Limited Matrix Completion with Noise, Verifiable Stream Computation, Count-Min-Log sketch
Streaming is bound to take a centerstage role if we are talking about Big Data...or Data as we call it in Texas. Today, we have an algorithm for matrix completion, paper on verifying the properties of certain streams and some approximation of count-min sketch. Withtout further ado:Streaming, Memory Limited Matrix Completion with Noise by Se-Young Yun, Marc Lelarge, Alexandre ProutiereIn this paper, we consider the streaming memory-limited matrix completion problem when the observed entries are […]
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2:11 AM | The Mozart Myth
I don’t know how many times I’ve heard about how Mozart would compose entire musical scores in his head and only write them down once they were finished. Even authors who stress that creativity requires false starts and hard work have said that Mozart may have been an exception. But maybe he wasn’t. In his new book How to […]
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2:08 AM | Cycling Chicago
Yesterday I had the privilege to spend some time with Steve Vance – of course on the backs of bicycles, riding through some neighbourhoods in Chicago. Steve is the mastermind behind the Chicago Bike Guide and a dedicated OSM mapper . It was a great experience to connect with a local who is deeply rooted […]

April 20, 2015

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11:57 PM | Star Wars Celebration 2015: Props, Costumes, Collectibles
I was at Star Wars Celebration over the weekend in Anaheim, where Lucasfilm debuted footage and information about the next two Star Wars films. It was unlike any fan convention I've attended, in its focused scope and fan fervor--this concentrated a dose of Star Wars is intense, even for Comic-Con veterans. We shot a bunch of videos at the show, which we'll start publishing later this week. In the meantime, here are some photos I took, previewing those videos. My highlights: the Force Awakens […]
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9:39 PM | My (Positive) Apple Retail Repair Experience
I switched to Apple machines several years ago, and have been very happy with them generally.One convenience is there is an Apple store in the mall about 10 minutes from my home, so when things go wrong, I know where to go.  Thursday night a screen-related hardware glitch developed (which, to be clear, in this case was not what I would call a product defect;  let's say it was a me defect).  I ran over and they said it would probably need to be taken in for a repair.Not being […]
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8:48 PM | Pedantic arithmetic rules
Generations of math teachers have drilled into their students that they must reduce fractions. That serves some purpose in the early years, but somewhere along the way students need to learn reducing fractions is not only unnecessary, but can be bad for communication. For example, if the fraction 45/365 comes up in the discussion of […]
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7:16 PM | Awesome Jobs: Meet Ann Ross, Forensic Anthropologist
When someone is murdered, the medical examiner isn't always able to discover the cause of death. Sometimes, especially in cases where a body has been buried for a long time, they have to call in a scientist that specializes in understanding how bones work. Ann Ross is a forensic anthropologist and the co-director of the Forensic Sciences Institute at North Carolina State University. It's her job to help authorities find buried bodies and inspect their bones to help puzzle out what brought about […]
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6:30 PM | Inside the Workshop of a Modern Swordmaker
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5:30 PM | Android Wear's Second Big Update Adds Wi-Fi Support
Google today announced a that its Android Wear smartwatch software would be getting a major update in the coming weeks--the second since the platform's launch last year. All seven of the current Android Wear devices will get some of these features, which include a streamlined app list, wrist-flicking gestures, emoji drawing (to send canned symbols, not actual sketches), and always-on apps (like the low-power mode of the watch face). Watches that have a Wi-Fi radio (including many existing […]
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3:30 PM | SLOPE is Adaptive to Unknown Sparsity and Asymptotically Minimax - implementation -
SLOPE is Adaptive to Unknown Sparsity and Asymptotically Minimax by Weijie Su, Emmanuel CandesWe consider high-dimensional sparse regression problems in which we observe $y = X \beta + z$, where $X$ is an $n \times p$ design matrix and $z$ is an $n$-dimensional vector of independent Gaussian errors, each with variance $\sigma^2$. Our focus is on the recently introduced SLOPE estimator (Bogdan et al., 2014), which regularizes the least-squares estimates with the rank-dependent penalty $\sum_{1 […]
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7:14 AM | Google Play App Roundup: Trepn Profiler, Space Marshals, and Implosion
There's no reason you wouldn't want the best apps on your Android device, but the Google Play Store makes that hard sometimes. Don't worry, though. That's what the weekly app roundup here on Tested is all about. This is where you can come to find out what the best apps are, and why they're the best. Click on the app name to go right to the Play Store web site to grab the app for yourself.This week Qualcomm demystifies your phone's hardware, there's a prison break in space, and a battle suit […]
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7:00 AM | Show and Tell: Navy SPH-3 Flight Helmet
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5:00 AM | Scale Up Nonlinear Component Analysis with Doubly Stochastic Gradients
Here is a mix of both Stochastic Gradient descent and Random Features to approximate Kernel PCAs and more... Scale Up Nonlinear Component Analysis with Doubly Stochastic Gradients by Bo Xie, Yingyu Liang, Le SongNonlinear component analysis such as kernel Principle Component Analysis (KPCA) and kernel Canonical Correlation Analysis (KCCA) are widely used in machine learning, statistics and data analysis, and they serve as invaluable preprocessing tools for various purposes such as data […]

April 18, 2015

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5:04 PM | Saturday Morning Video: Towards a Learning Theory of Causation - Implementation -
Here is the video: Towards a Learning Theory of Causation by David Lopez-Paz, Krikamol Muandet, Bernhard Schölkopf and Iliya TolstikhinWe pose causal inference as the problem of learning to classify probability distributions. In particular, we assume access to a collection {(Si,li)}ni=1, where each Si is a sample drawn from the probability distribution of Xi×Yi, and li is a binary label indicating whether "Xi→Yi" or "Xi←Yi". Given these data, we build a […]
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