# Posts

### July 24, 2014

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Laurent Duval just sent me the following:Dear IgorNuit Blanche is a nest of choice for many sparsities. The ones of concern here are those approximated by an $l_1/l_2$, or Taxicab/Euclidean norm ratio, which was already covered in some of your posts: http://nuit-blanche.blogspot.fr/2012/04/compressive-sensing-this-week.htmlhttp://nuit-blanche.blogspot.fr/2012/03/old-and-new-algorithm-for-blind.htmlhttp://nuit-blanche.blogspot.fr/2008/05/cs-kgg-explanation-of-l0-and-l1.html We propose […]
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How to Promote Your Article Ale Ebrahim, NaderHow to Promote Your Article., 2014[Newspaper/magazine article] TextHow to promote article - UM Bulletin Vol 1 2014.pdf - Published versionDownload (370Kb) | Preview Official URL: http://um.edu.my/doc/research/Vol12014/#p=38 http:...English abstractWriting an article for online distribution in a way that maximized the chances of citation hits, is different from preparing one for print journals in […]

### July 23, 2014

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“Let me start with an audacious assertion:  A major problem confronting science journalists is that they have trouble communicating what’s true. Even when competing claims are wildly lopsided — think climate change, for example — science journalists feel that they cannot tell their audience that one of the claims is surviving scientific scrutiny better than others.” – Sharon Dunwoody, on SciDev.net SciDev.net recently posted an excellent piece by Sharon […]
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No summary available for this post.
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Sometimes energy issues aren’t partisan, but are still poorly understood. According to the Spring 2014 UT Energy Poll, 84 percent of Americans say they are concerned about the cost of gasoline,... -- Read more on ScientificAmerican.com
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An accelerant forces air bubbles into the batter, which helps the cake rise without baking soda or baking powder. Continue reading →
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From a discussion of the Hemingway app on Hacker News, jaxn writes, Could someone create a gmail plugin to filter my outgoing emails through this. Maybe it would help to make my emails clearer and more persuasive. To which fl0wenol replies, No, because instead of discerning if you're a dullard by the quality of your writing at a glance, I'll instead have to stumble through mechanically de-voiced inanity. At least without Hemmingway your stream-of-consciousness as committed to typed form can be […]
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A couple of online conversations have me thinking. I’m about to put forth a fairly long “No True Scotsman” description of alcoholism. I am friends with a bunch of neuroscientists. Many of them study addictions. I am not going to pretend that I understand the first thing about neuroscience. I don’t even understand basic cell biology […]
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The webpage of the EADS Summer School on Hashing: Theory and Applications that took place on July 14-17, 2014 at University of Copenhagen, Denmark, now features the slides of the presentation made there:OVERVIEW AND GOALHashing is used everywhere in computing and is getting increasingly important with the exploding amount of data. The summer school will provide an in-depth introduction to hashing, both theory and applications. The topics range will from modern theory of hashing, […]
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Hydraulic fracturing (“fracking”) has flipped the global energy discussion on its head. Over the past five years, the world has watched the U.S. shift its focus from fears of peak oil and... -- Read more on ScientificAmerican.com
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A new wireless monitoring device provides early warnings to medical staff when a patient's health is suffering.
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In just over three weeks a mobile role-playing game featuring Kim Kardashian as your life coach has made more than $85 million and is projected to eclipse$200 million in sales by year’s end. While hitching a game to a rising star is a tried-and-tested business plan, the rapid success of this app likely has … Continue reading →
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The combination of lasers and air could be used to create an instantaneous optical fiber to any point on earth, or even into space.
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No summary available for this post.
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In light to a recent update on ArXiv, I asked Dror Baron to provide me some context on his different papers related to universal signal recovery, here is what he had to say: Hello Igor,Here's a link to a recent submission: http://arxiv.org/abs/1204.2611I know that we have multiple related algorithms recently, so let me try to explain:1. In a compressed sensing problem, y=A*x+z, this work is trying to solve xhat = argmin_w H(w)-log(f_Z(zhat=y-A*w)), where xhat is our estimate for x given y […]

### July 22, 2014

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I’ve read a couple articles about how we all get caught up in being so busy.  A lot of them talk about how we need to escape the busyness spiral.  Xykademiqz expressed frustration with people who are always busy. I guess I’m coming at it from a different angle. I’ve come to realize that the phrase […]
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As part of a two-month trial in Finland trial, transaction information will be broadcast over a Finnish network.
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A vital factor affecting the economics of any energy source is transportation: where is the fuel extracted, where is it used, and how does it get from point A to point B? An example is the case of... -- Read more on ScientificAmerican.com
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Much like the presentation by Lei Tang (Wallmart Labs) on Adaptive User Segmentation for Recommendation at last year's GraphLab 2013 (see Slides (pdf) here and video here). Xavier Amatriain, of Netflix, made a presentation of what we should be expecting in terms of recommendation. The idea here is that most of this work cannot be static otherwise your customers just won't be responsive to it. Here are his slides and the attendant videos from the Machine Learning Summer School organized in […]
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False tweeters are dedicated to circulating China's message on Tibet.
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Yesterday I had a conversation with a new friend who knows someone newly in recovery. The alcoholic, sober six months, has asked my friend for a letter of recommendation. He needs this because he was terminated from his prior position for behaving badly while an active alcoholic. It is not entirely clear to me if […]
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Here is a heady potion made with the key ingredients of IBM’s Bluemix, PostgreSQL & Node.js. In this post I instantiate an app ‘mypgdb01′ on IBM’s Bluemix which uses the services of PostgreSQL in the cloud. This is shown in the picture below. The mypgdb01 is a Webserver running on Node.js in Bluemix and uses […]
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A person named William Kite has been sending us letters—lots of letters— asking that we show more pictures of what he calls “famous physics people”. For the benefit of Mr. Kite (and in truth, merely because of the historical appeal of his name), here are two videos filled with, mostly, moving pictures of famous physicists, […]
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A completely new structure heats water and turns it into steam. Continue reading →
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Interesting review of the TT approach:Tensor Networks for Big Data Analytics and Large-Scale Optimization Problems by Andrzej CichockiIn this paper we review basic and emerging models and associated algorithms for large-scale tensor networks, especially Tensor Train (TT) decompositions using novel mathematical and graphical representations. We discus the concept of tensorization (i.e., creating very high-order tensors from lower-order original data) and super compression of data achieved via […]
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Benjamin Trémoulhéac just sent me the following:Dear Igor,You and your readers might be interested in my paper recently published (early view) which is about the use of the RPCA (or L+S) model in dynamic MR imaging from partial Fourier samples for both reconstruction and separation:Dynamic MR image reconstruction–separation from undersampled (k,t)-space via low-rank plus sparse priorhttp://dx.doi.org/10.1109/TMI.2014.2321190​​(This is an open access article […]

### July 21, 2014

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We mentioned it before, the GraphLab conference is on and it is streamed live here. The program is here (the Twitter tag seems to be #GraphLabConf )Day 1: Monday, July 21, 2014General Admission. Registration opens at 8:00am.Session 1: Data Product Pipeline in Practice9:00am Prof. Carlos Guestrin Co-Founder & CEO, GraphLab Keynote: GraphLab Strategy, Vision and Practice10:10am Baldo Faieta Social Computing Lead, Adobe Systems Algorithms for Creatives Talent Search using […]
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