Posts

January 16, 2015

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12:00 PM | Hackers of the Silver Screen: Photos
With the release of the new techno thriller Blackhat, we take a look at depictions of hackers and hacking culture in the movies.
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11:46 AM | A crime map of India in R – Crimes against women
In this post I take a look at the gory crime scene across India to determine which states are the heavy weights in crimes. Who is the undisputed champion of rapes in a year? Which state excels in cruelty by husbands and the relatives to wives? Which state leads in dowry deaths? To get the […]
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6:00 AM | A robust sub-linear time R-FFAST algorithm for computing a sparse DFT
Here is a new algorithm using the fact that the underlying signal is sparse in order to perform faster operations such as DFT in this case ( the faster FFTs are listed under the FFT tag ).A robust sub-linear time R-FFAST algorithm for computing a sparse DFT by Sameer Pawar, Kannan Ramchandran The Fast Fourier Transform (FFT) is the most efficiently known way to compute the Discrete Fourier Transform (DFT) of an arbitrary n-length signal, and has a computational complexity of O(n log n). If the […]
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12:23 AM | Westling’s lightning-rod economic growth thesis
No summary available for this post.

January 15, 2015

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8:45 PM | Barbie Rides a 3D-Printed, Cat-Pulled Chariot
A Kickstarter project has 3D-printable digital files for a Barbie chariot.
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7:05 PM | Satellite Images Show Boko Haram's Devastating Reign
Before and after satellite maps show Boko Haram's horrific campaign of terror.
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6:45 PM | A little video essay about the Ig Nobel Prizes
No summary available for this post.
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5:54 PM | Smart Shoes Power Up Your Wearables When You Walk
Miniaturized magnets and coils in the heel of your shoe could generate power with every step.
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4:57 PM | Dogs with a wider angle of wag are at risk
This study focuses public attention on the (hitherto largely ignored) concept of wider angle of wag: “Risk factors for tail injuries in dogs in Great Britain,” G. Diesel, D. Pfeiffer, S. Crispin and D. Brodbelt, Veterinary Record,  vol. 166, no. 26, June 26, 2010, pp. 812-7. The authors report: “Data were obtained from a stratified random […]
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4:30 PM | Sparse Solutions to Nonnegative Linear Systems and Applications
Sparse Solutions to Nonnegative Linear Systems and Applications by Aditya Bhaskara, Ananda Theertha Suresh, Morteza Zadimoghaddam We give an efficient algorithm for finding sparse approximate solutions to linear systems of equations with nonnegative coefficients. Unlike most known results for sparse recovery, we do not require {\em any} assumption on the matrix other than non-negativity. Our algorithm is combinatorial in nature, inspired by techniques for the set cover problem, as well as the […]
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3:48 PM | Home from Conference.
I spent the last four days in New Orleans at the International Meeting for Simulation in Healthcare. It was a good meeting, though I am coming around to the feeling that it might not be my meeting. It’s very heavily focused on mannequin simulation, and I do discrete event simulation. There’s a couple of small […]
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6:00 AM | FASTA: A Field Guide to Forward-Backward Splitting with a FASTA Implementation - implementation -
A Field Guide to Forward-Backward Splitting with a FASTA Implementation by Tom Goldstein, Christoph Studer, Richard Baraniuk Non-differentiable and constrained optimization play a key role in machine learning, signal and image processing, communications, and beyond. For high-dimensional minimization problems involving large datasets or many unknowns, the forward-backward splitting method provides a simple, practical solver. Despite its apparently simplicity, the performance of the […]

January 14, 2015

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9:10 PM | In Keystone XL Saga, Time to Elevate Policy Above Politics
The biggest story in U.S. energy politics at the moment is the proposed Keystone XL pipeline, which would transport oil sands from Canada to the U.S. Gulf Coast, where it could be refined and sold... -- Read more on ScientificAmerican.com
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8:41 PM | Samuel Flaxman joins two Luxuriant Flowing Hair Clubs for Scientists (LFHCfS)
No summary available for this post.
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8:00 PM | These Are Amazing 3-D Images of the Human Body
New and improved CT scanning techniques deliver high-resolution glimpses inside the human body.
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5:39 PM | IPv6 seen in the wild!
Don't ask how I got here, but I was looking at the revision history of a Wikipedia page and saw: (cur | prev) 16:20, 18 December 2014‎ 2607:f470:8:b044:3d66:5782:2dba:2c8b (talk)‎ . . (9,582 bytes) (0)‎ . . (→‎Dialethiesm may be a more accurate model of the physical world) (undo) (cur | prev) 00:14, 30 November 2014‎ 2601:e:8100:701:4124:33e5:9859:fc9d (talk)‎ . . (9,582 bytes) (-19)‎ . . (→‎Fixed ) (undo) Yep, those are IPv6 addresses, doing minor […]
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5:05 PM | First Contracting Human Muscle Grown in a Lab
The muscle represents a entirely new, more humanlike medium in which to study disease.
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3:05 PM | How to write a technical paper (c.1956)
No summary available for this post.
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2:50 PM | Steam Machine Turns Sludge into Drinking Water
A steam-powered sewage processor that burns up solid waste and creates both potable water and electricity.
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2:03 PM | Wordless Wednesday: Away from my treasure, ya scurvy two-legged land lubbers! (or cats laying on things)
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11:30 AM | Development of Low Temperature Three-Way Catalysts for Future Fuel Efficient Vehicles
Introduction Three-way catalysts (TWCs) have been widely applied on stoichiometric-burn gasoline engine powered vehicles to reduce the tailpipe emissions of hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx). A conventional TWC can convert the three pollutants at nearly 100% conversion efficiency once it reaches its operation temperature, typically above 400°C. As the exhaust temperature... The post Development of Low Temperature Three-Way Catalysts for Future Fuel Efficient […]
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11:30 AM | Guest Editorial: Introduction to Batteries at Johnson Matthey
It may surprise some readers to see an edition of this journal dedicated largely to lithium-ion batteries, but this is a technology that Johnson Matthey considers a major new business area for the company. Johnson Matthey has been involved in research and development (R&D) in the battery materials space for several years and launched its... The post Guest Editorial: Introduction to Batteries at Johnson Matthey appeared first on Johnson Matthey Technology Review.
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10:15 AM | Ce Soir / Tonight: Paris Machine Learning Meetup #5 Season 2, Time Series and FinTech
Paris Machine Learning Meetup #5 Season 2 is tonight and it will be a joint meetup with the Paris Financial Engineering meetup. Our current meetup membership has risen to 1700+ members making it the largest Machine Learning Meetup outside the U.S. (and top 6 worldwide). We have some growth issues, this is why we are trying a new location today. Our sponsor and host is the Maltem Consulting Group. Let us note that we also have about 600 professionals listed in the LinkedIn Paris Machine Learning […]

January 13, 2015

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11:30 PM | Luxuriant Hair Club for Scientists™ names 2015 Woman & Man of the Year
No summary available for this post.
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9:07 PM | Jimmy the astrophysicist joins Luxuriant Flowing Hair Club for Scientists (LFHCfS)
Jimmy has joined the Luxuriant Flowing Hair Club for Scientists (LFHCfS). He says: I, Jimmy, am an astrophysics graduate student at Texas A&M studying galaxy formation. I obtained my long luxurious hair through many months of carefully avoiding the barber shop. The lovely pink hue is the result of a fortunate accident involving a telescope, lasers, and pink hair dye. […]
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7:05 PM | Zap Your Brain to Change Your Mood
Futuristic electroshock therapy aims to make you feel better.
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5:43 PM | Facebook Now Sharing Amber Alerts On Your News Feed
Thanks to location services on laptops and smartphones, the alerts will be targeted at those people closest to the source of the event.
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5:04 PM | DNews: Why We Should Care About Quantum Computing
With mega companies like Microsoft, Google and IBM quietly investing in quantum computing development, word is starting to leak out that the out-there technology with the sci-fi name might be a part of our lives sooner rather than later.
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4:30 PM | Computer Predicts Personality Using Facebook 'Likes'
The program may be a better judge of your personality than your closest friends and family, suggests a new study.
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4:07 PM | Random Matrices for the People: An Introduction to Matrix Concentration Inequalities
Compressive Sensing, Random Features, it's all in there: An Introduction to Matrix Concentration Inequalities by Joel Tropp In recent years, random matrices have come to play a major role in computational mathematics, but most of the classical areas of random matrix theory remain the province of experts. Over the last decade, with the advent of matrix concentration inequalities, research has advanced to the point where we can conquer many (formerly) challenging problems with a page or two of […]
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