Posts

November 05, 2014

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6:00 AM | MatchLift : Near-Optimal Joint Object Matching via Convex Relaxation - implementation -
Yuxin Chen sent me the following yesterday:Dear Igor, I have been following your blog daily, and have learned a lot from your blog entries.  I believe that this definitely has made a significant impact to the community.  We have recently published one paper in ICML,  which uses ideas motivated by robust PCA / matrix completion to solve joint graph matching,  a task particularly important in computer vision and graphics. We have released sample code for the key […]
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12:16 AM | Book: Regularization, Optimization, Kernels, and Support Vector Machines
Marco Signoretto just sent me the following:Dear Igor,can you please post this announcement in nuit-blanche? Thank you in advanceregardsMarcoSure Marco here is the table of content:NEW BOOK ANNOUNCEMENT:Regularization, Optimization, Kernels, and Support Vector MachinesEditors: Johan A.K. Suykens, Marco Signoretto, Andreas ArgyriouChapman and Hall/CRC, Oct 2014http://www.crcpress.com/product/isbn/9781482241396Chapter contributions:1. An Equivalence between the Lasso and Support Vector Machines; […]

November 04, 2014

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4:25 PM | Awesome Jobs: Meet Kevin Arrigo, Biological Oceanographer
Kevin Arrigo studies some of the teeny tiniest organisms on the planet -- microscopic plants called Phytoplankton that scientists think might produce up to 50 percent of the Earth’s oxygen. To get at what makes these itty bitties tick he climbs aboard giant ice-breaking ships and heads out to the planet’s icy North and South where they are the most active. Arrigo chatted with us about what it’s like to work in the world’s polar regions and what it feels like to take a […]
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4:00 PM | In Brief: Why Scratching an Itch Makes It Worse
Through a series of experiments with mice, researchers at the Washington University School of Medicine think they have figured out why people scratch an itch to the point of bleeding. According to Dr. Zhou-Feng Chen, who is actually the director of the school's Center for the Study of Itch (seriously!), the cause of neural crosstalk and the brain's release of the neurotransmitter serotonin. We scratch itches because the pain induced by scratching inhibits the itch, but the serotonin released to […]
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3:30 PM | Testing a Vacuum at NASA's Space Power Facility
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2:00 PM | Tales of Halloween Past - 11/4/2014
Adam, Will, and Norm share some of their favorite Halloween stories.
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1:21 PM | Three invited talks
I will be giving three invited talks on games and culture this week: the keynote on games, pervasive play and health in Pelaten terveeks conference in Jyväskylä, tomorrow, 5th November; more at: http://www.jamk.fi/fi/Tapahtumat/pelaten-terveeks-konferenssi/ in Thursday I will be giving two talks in … Continue reading →
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11:12 AM | La connaissance est un réseau: Perspective sur l’organisation archivistique et encyclopédique
ALLER PLUS LOIN Dans le même numéro, je vous invite à lire également les contributions suivantes : Rochat Y. et Kaplan F., “Analyse des réseau de personnages dans les confessions de Jean-Jacques Rousseau“, pp. 109-133. Le Deuff O., “Translittératie et transmedia. Quelles compétences pour de nouvelles productions « délivrées » ?“, pp. 55-72. Ainsi qu’une […]
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10:55 AM | CVXPY: A Python-Embedded Modeling Language for Convex Optimization Problems - implementation -
  Following up on yesterday's Domain Specific Languages (DSL) for Convex Optimization here is CVXPY, an effort to implement it in Python. From the page: CVXPY is a Python-embedded modeling language for convex optimization problems. It allows you to express your problem in a natural way that follows the math, rather than in the restrictive standard form required by solvers.....CVXPY is a Python-embedded modeling language for convex optimization problems. It allows you to […]
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1:00 AM | The Graphics Technology of Disney's Big Hero 6
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November 03, 2014

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5:53 PM | Convex Optimization in Julia
Everybody that has read this blog a few times knows our collective reliance on CVX as a means of figuring out, in small problems, if things work out. While CVX is a great tool it relies on Matlab which is not free. As nice as Matlab is, some people want to have CVX capabilities outside of that framework. Today and tomorrow, we will feature two instances of that. The first one is an implementation in Julia.  Convex Optimization in Julia by Madeleine Udell, Karanveer Mohan, David Zeng, Jenny […]
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2:00 PM | Thank You & Most Active Tweets (October 2014)
Thanks to Twitter's great Analytics tools, you can find out lots of instant data on the activity of your tweets. Here are some of the more active tweets from... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
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10:00 AM | Philips Kids Headphones – Volume Capped!
We often review headphones here on GirlyGeekdom however it is rare that we have headphones sent that are designed and made especially for children and that is what happened this week!  Philips have just released their Kids headphones which are suitable from 3 years old +.  These headphones are volume capped to 85Db to protect […]
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6:41 AM | Google Play App Roundup: djay 2, Haunt the House: Terrortown, and Battleheart Legacy
It's that time of the week again. Time to shake off the weekend vibe and get back to work. But you can probably spare a few minutes to check out some new apps. This is the Tested Google Play App Roundup, which is where we tell you about the best new and newly updated apps on Android. Just follow the links to Google Play.This week we get ready to get down, get scared, and get questing.djay 2I cannot claim to know much about DJing, not can I even say I'm particularly worried about audio […]
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6:30 AM | Show and Tell: 3D Printing a Lightsaber
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6:00 AM | Dimensionality Reduction for k-Means Clustering and Low Rank Approximation
Again at the intersection between Randomized Numerical Linear Algebra, Advanced Matrix Factorization and some elements of compressive sensing. I also like the fact that the authors plant their efforts within a larger panorama with paragraph 1.1 aptly named "Big Picture" :-) Without further ado:Dimensionality Reduction for k-Means Clustering and Low Rank Approximation by Michael Cohen, Sam Elder, Cameron Musco, Christopher Musco, Madalina PersuWe show how to approximate a data matrix A with a […]

November 02, 2014

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3:23 PM | The researcher's article : a three-part adventure / Le chercheur et son article : une aventure en trois actes
The following videos are both in English and French and aim at explaining to the general public the underlying aspect of one of the most labor intensive aspect of doing Science, i.e. publish an article in the scientific literature (or how the current system is implemented, i.e. pre-publication peer review model). See my views on this system in The Problem with Pre-Publication Peer Review. In the meantime, enjoy:  in English:  and in French:   The full website […]
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2:41 PM | The Sparse- and Low-Rank Approximation Wiki
I was recently asked about a place on the interweb where people talked about solvers used in compressive sensing and more. That place exists, it is the wiki of Stephen Becker called Sparse- and low-rank approximation wikiIt is one of the few Highly Technical Reference Pages / Aggregators on the interweb.    Join the CompressiveSensing subreddit or the Google+ Community and post there ! Liked this entry ? subscribe to Nuit Blanche's feed, there's more where that came […]
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5:00 AM | Nicolas de Condorcet’s “Progress of the Human Mind”
It frustrates me bitterly that the works of the Enlightenment are almost forgotten in America’s universities. Science classes ignore them because scientists must focus on the most current understanding of our world. Humanities classes ignore them because the Age of Enlightenment, with its rationality and empiricism, is seen as the oppressor of creative expression. But […]
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1:04 AM | Reconstructing Gödel
What exactly was his “Philosophical Viewpoint”? Austria Forum source Kurt Gödel left a large amount of unpublished writings and notebooks and preserved correspondence. Called his Nachlass, German for “after-leavings” or bequest, these writings were catalogued and organized by several—including his first biographer, John Dawson, for a heroic two years. Those of highest scientific and general […]

November 01, 2014

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7:05 PM | Weekend Links (November 1 Edition)
A variety of links on related news.Ebola #1 (local):  The HackEbola with Data website gives detail for the upcoming Harvard Hacking event in conjunction with Statistics without Borders.  If doing some data mining for a cause is your thing, please check it out.  (No, you don't have to be associated with Harvard to participate...)Ebola #2:  New Yorker magazine has an article out on "The Ebola Wars" that among other things, describes the work done by Harvard colleague Pardis […]
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4:00 PM | Pump It Up 2015 Arcade #Exergaming Adds Networking
It has been a long time since we've profiled a dance exergame, but Arcade Heroes teased the release of new songs and a finally a USB login for Networking Gameplay Feature for Pump It Up 2015. Get... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
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11:37 AM | Blog changes coming
I’m in the process of redesigning my blog and web site. Some things will move around, but nothing is going away. In particular, the URL http://johndcook.com/blog may take you to the new home page rather than the latest blog post, at least temporarily. If you subscribe via email or RSS posts will come to you […]

October 31, 2014

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4:30 PM | Surviving the Zombie Apocalypse with Teller
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4:16 PM | To some a citation is worth $3 per year
Earlier this week US News and World Report (USNWR) released, for the first time, a global ranking of universities including rankings by subject area. In mathematics, the top ten universities are: 1. Berkeley 2. Stanford 3. Princeton 4. UCLA 5. University of Oxford 6. Harvard 7. King Abdulaziz University 8. Pierre and Marie Curie – […]
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4:00 PM | In Brief: How to Photograph an Atomic Explosion
The Bulletin of the Atomic Scientists recently interviewed film archivist (and early ILM visual effects artist) Peter Kuran, who literally wrote the book about How to Photograph an Atomic Bomb. Kuran, who also directed a 1995 documentary about nuclear weapons testing, runs a website and YouTube channel dedicated to restoring and archiving films from American atomic history. Kuran talks about the current digitization efforts of nuclear research film, and what scientists and historians can learn […]
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10:00 AM | The Future of 4K TV
Televisions have come a long way since 1926 when Scottish inventor John Logie Baird publicly demonstrated his new invention. The first colour broadcast took place 50 years ago on 1st Janurary 1954, however the technology wasn’t cheap, and so many people didn’t have access to a colour TV until the mid to late 1960s. 4K […]
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7:01 AM | HalloweenCast - Bonus Episode - 10/31/2014
It's Halloween on CreatureGeek! Frank and Len chat about their favorite FX flicks to watch post Trick or Treating. Agree or disagree? Sound off in the comments!
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7:00 AM | Worldbuilding and Storytelling in Disney's Big Hero 6
No summary available for this post.
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5:30 AM | Nuit Blanche in Review ( October 2014 )
Since the last Nuit Blanche in Review ( September 2014 ), we had another Way of Reading Nuit Blanche, saw Once Thought Impossible Computations, read a few Blogs in 78 Summer Hours and found quite a few implementations:Non-linear Causal Inference using Gaussianity MeasuresBRTF: Robust Bayesian Tensor Factorization for Incomplete Multiway Data SparsePR: Robust Sparse Phase Retrieval Made Easy Compressed Manifold Modes for Mesh Processing On Sparse Representation in Fourier and Local Bases RQS […]
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