# Posts

### October 05, 2014

+
It’s harder than you think William Kahan is a numerical analyst and an expert on all things about floating point numbers. He won the 1989 Turing award for his pioneering work on how to implement floating point computations correctly. He has also been a tireless advocate for the care needed to avoid insidious numerical bugs, […]
+
Julian Havil has written a new book John Napier: Life, Logarithms, and Legacy. I haven’t read more than the introduction yet — a review copy arrived just yesterday — but I imagine it’s good judging by who wrote it. Havil’s book Gamma is my favorite popular math book. (Maybe I should say “semi-popular.” Havil’s books […]
+
I was delighted by the recent publication of Jill Walker Rettberg’s book Seeing Ourselves Through Technology: How We Use Selfies, Blogs and Wearable Devices to See and Shape Ourselves. This is partly due to the interesting discussion of phenomena like … Continue reading →

### October 04, 2014

+
Les attractions des Nuits Blanches de Paris se trouvent ici, celles de Bruxelles se trouvent ici et celles de Toronto ici.Si par contre vous etes interesses par le deluge de donnees qui depassent le nombre d'etoiles dans l'univers et comment les utiliser pour mieux comprendre le monde, bienvenue, vous etes arrives a bon port. Pour information, il y a depuis plus de an des meetups sur le Machine Learning a Paris.  Join the CompressiveSensing subreddit or the Google+ Community and […]
+
The Archos Smart Home consists of a home tablet as the central console, 2 mini-cam’s, 2 weather tags and 2 movement tags.  You can also get additional peripherals including smart plugs and motion balls. We took the basic kit for a bit of a spin round our house in a few different scenario’s and here’s […]
+
Surprise, time for a long overdue Living with Photography column--I missed writing this regularly. I'm returning this week to talk about something that's been on my mind for a while now--a question I've been struggling to wrap my thoughts around since the summer: what defines a professional photographer? Or more specifically: what's the line that separates an amateur and a professional photographer?This question started bothering me at this year's Comic-Con, where I met a bunch of Tested […]
+
So many phones, but most people only get the chance to decide which one to buy every year or two. It's a tough decision, and one you don't want to screw up. If you must have the best of the best, you've come to the right place. We're going to dissect the current state of the Android offerings on each of the big four US carrier and tell you what your best bet is.This month the Moto X is on the scene, the Note 4 is ready to ship, and LG continues to impress.AT&TThere are a few new devices […]

### October 03, 2014

+
Andreessen Horowitz had a second Academic Roundtable, gathering together academics, VCs, and people in startups to talk for a few days about a variety of topics.  I wasn't sure why I was invited the first time (which I wrote about last year), and am even less clear on why I was invited back, but I again had a very good time.  Before a few words about the talks, the high order point:  I'm told that most/all of the talks will be put online over the coming weeks.  So if you're […]
+
No summary available for this post.
+
And you thought you'd have a nice and uneventful end of the week, uh !well, it looks like all the slides of the MMDS 2014: Workshop on Algorithms for Modern Massive Data Sets have been recently released, they are all here (I just added a link to each authors' website)Data Analysis and Statistical Data Analysis Large Scale Machine Learning at Verizon Ashok Srivastava Communication Cost in Big Data Processing Dan Suciu Content-based search in 50TB of consumer-produced videos Gerald Friedland […]
+
This week I was at my alma mater, Cornell, to give a talk at the 50th anniversary celebration of its computer science department.  You can watch the streaming video here; my talk runs from roughly 1:17:30 to 1:56 (though if you’ve seen other complexity/physics/humor shows by me, this one is pretty similar, except for the […]
+
Before you do anything else, go look at the finished pictures of this amazing Metroid armor 3D printed by RPF user Talaaya. Go on, I'll wait.If you want to know how she accomplished such an incredible build, head over to her blog, where she shows a bunch of in-progress photos, including the project's origins as a pepakura build, her process for finishing the prints (she used a friend's Zcorp 450 printer), painting, and using EL wire to create the appropriate accents. I hope I get a chance to […]
+
Previously once thought impossible computations are now enabled thanks to random projections in Compressive Sensing to encode the wavefiunction in Quantum mechanics and Random Features in high dimensional kernel evaluations. Woohoo !.Compact wavefunctions from compressed imaginary time evolution by Jarrod R. McClean, Alán Aspuru-Guzik Simulation of quantum systems promises to deliver physical and chemical predictions for the frontiers of technology. Unfortunately, the exact […]
+
No summary available for this post.
+
Norm's off on location, so Will and Jeremy discuss the next version of Windows, Netflix's next batch of exclusive content, Paypal finally spinning off from Ebay, and Tesla unveiling the D. Enjoy!

### October 02, 2014

+
The version of Windows following 8.1 will be Windows 10, not Windows 9. Apparently this is because Microsoft knows that a lot of software naively looks at the first digit of the version number, concluding that it must be Windows 95 or Windows 98 if it starts with 9. Many think this is stupid. They […]
+
Since the last Nuit Blanche in Review ( August 2014 ), we've seen quite a few implementation out but also we also attained a new milestone ( The Long Distance Blogger  ). We also had a some meetings and meetups, and in the course of these proceedings, we sometimes lose sight of what is happening. I tried to clinch that magic back in Unfiltered Access. Anyway, without further ado, here is a summary of this past month activity on Nuit Blanche:  Implementations:Alternating proximal […]
+
It’s Nobel Prize Season and there is inevitable speculation on who will get one. I have a negative prediction: The Prize will not be award to the creators of BLAST. However, I think the creators of BLAST should get a Nobel Prize. … Continue reading →
+
No summary available for this post.
+
Everyone knows the master theorem. Or at least everyone reading this blog does. And I'm almost certain that everyone reading this blog has heard of the generalization of the master theorem due to Akra and Bazzi. It's particularly useful when you have recurrences of the form $$T(n) = \sum_i a_i T(n/b_i) + g(n)$$because like the master theorem it gives you a quick way to generate the desired answer (or at least a guess that you can plug in to the recurrence to […]

### October 01, 2014

+
Fancy doing a PhD with me at Cardiff Metropolitan University? I have a fully-funded studentship (for UK/EU students) starting in January, in collaboration with HP in Bristol: The Department of Computing & Information Systems, Cardiff Metropolitan University, is pleased to offer a fully funded PhD Studentship in Provably Optimal Code Generation. This research project (Scaling […]
+
There are lots of tiny little satellites orbiting the earth above your head right now. But that’s all they do: orbit, around and around. There is a plan, however, to give these cheap, so-called CubeSats the ability to strike out on their own. With the aid of some relatively simple propulsion technology, the goal is to push these tiny satellites beyond earths’s gravitational pull and into the outer reaches of space.The idea is that, in the not so distant future, unmanned space […]
+
Can the impossible become practical? Complex analysts gallery source Tibor Radó was a mathematician who was the PhD advisor to a number of computer scientists. They include Shen Lin, Paul Young, and several others. All were his students while he was at Ohio State University. He is not the Rado of the Erdős-Ko-Rado theorem—that is […]
+
NPR some time back had an article on scientists leaving science, mostly because government funding of research has become more like a sweepstakes than a well. I had posted a couple of comments in the following thread, and I’d rather those didn’t get lost, as Google seems not to take note of or index comments […]
+
This Friday I have been invited to present the keynote in the Social Media in Education seminar, organised by TAOKK & TAMK in Tampere. My title is “Mobile and Pervasive Play – the New Potentials for Communication, Information Seeking and … Continue reading →
+
I just compiled a list of a few preprints and papers that recently came out in support of hyperspectral work and its relation to either compressive sensing or advanced matrix factorization. Without further ado:Self-Dictionary Sparse Regression for Hyperspectral Unmixing: Greedy Pursuit and Pure Pixel Search are Related by Xiao Fu, Wing-Kin Ma, Tsung-Han Chan, José M. Bioucas-DiasThis paper considers a recently emerged hyperspectral unmixing formulation based on sparse regression of a […]
+
No summary available for this post.

### September 30, 2014

+
Years ago, I interviewed a number of film editors, which was a fascinating experience for me. You can learn a lot about the storytelling process from editors; they're in charge of one of the most important and under-appreciated aspects of filmmaking: choosing not only what shots to leave in, but what to leave out. The collaboration between director and editor on a movie is crucial, because having complete freedom with no outside guidance can ruin a film just as much as having no freedom at […]
+
No summary available for this post.
+
Arduino today announced its Materia 101, a $1000 pre-assembled 3D printer that will debut at Maker Faire Rome early next month. It also will be sold as an$800 kit. The 1.75mm PLA printer was designed in collaboration with ShareBot, and looks like a rebadged ShareBot running an Arduino Mega 2560. The printer has is 31cm x 33cm x 35cm large, and its print bed is 14cm x 10cm x 10cm. Not too big, and it doesn't look like it'll be upgradable, either. This announcement comes shortly after the […]