ENTRIES TAGGED "cs"

Four short links: 8 October 2012

Four short links: 8 October 2012

Drone Conflict, 3D Scanning Booths, Bitcoin Consensus, and Moar Coders

  1. Beware the Drones (Washington Times) — the temptation to send difficult to detect, unmanned aircraft into foreign airspace with perceived impunity means policymakers will naturally incline towards aggressive use of drones and hyperactive interventionism, leading us to a future that is ultimately plagued by more, not less warfare and conflict. This. Also, what I haven’t seen commented on with the Israeli air force shooting down a (presumably Hezbollah) drone: low cost of drones vs high cost of maintaining an air force to intercept, means this is asymmetric unmanned warfare.
  2. Scanbooth (github) — a collection of software for running a 3D scanning booth. Greg Borenstein said to me, “we need tools to scan and modify before 3D printing can take off.” (via Jeremy Herrman)
  3. Bitcoin’s Value is Decentralization (Paul Bohm) — Bitcoin isn’t just a currency but an elegant universal solution to the Byzantine Generals’ Problem, one of the core problems of reaching consensus in Distributed Systems. Until recently it was thought to not be practically solvable at all, much less on a global scale. Irrespective of its currency aspects, many experts believe Bitcoin is brilliant in that it technically made possible what was previously thought impossible. (via Mike Loukides)
  4. Blue Collar Coder (Anil Dash) — I am proud of, and impressed by, Craigslist’s ability to serve hundreds of millions of users with a few dozen employees. But I want the next Craigslist to optimize for providing dozens of jobs in each of the towns it serves, and I want educators in those cities to prepare young people to step into those jobs. Time for a Massively Multiplayer Online Economy, as opposed to today’s fun economic games of Shave The Have-Nots and Race To The Oligarchy.
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Four short links: 12 September 2012

Four short links: 12 September 2012

Time-Series Database, Multi-Device TV, C# to Javascript, and Tiny Research

  1. Seriesly — time-series database written in go.
  2. Tablets and TV (Luke Wroblewski) — In August 2012, 77% of TV viewers used another device at the same time in a typical day. 81% used a smartphone and TV at the same time. 66% used a laptop and TV at the same time.
  3. Saltarelle — open source (Apache2) C# to Javascript compiler. (via Javascript Weekly)
  4. Tiny Transactions on Computer Science — computer science research in 140 characters or fewer.
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Four short links: 4 June 2012

Four short links: 4 June 2012

Explore Your World, Cyberwar Cyberon, The Paperlessless Society, and Video Hackery

  1. How To Be An Explorer of the World (Amazon) — I want to take this course on design anthropology but this book, the assigned text, looks like an excellent second best.
  2. StuxNet Was American-Made Cyberwarfare Tool (NY Times) — not even the air gap worked for Iran, “It turns out there is always an idiot around who doesn’t think much about the thumb drive in their hand.”
  3. So Much For The Paperless Society (Beta Knowledge Tumblr) — graph of the waxing and waning use of bond paper in North America. Spoiler: we’re still using a lot.
  4. Magnifying Temporal Variation in VideoOur goal is to reveal temporal variations in videos that are difficult or impossible to see with the naked eye and display them in an indicative manner. Our method, which we call Eulerian Video Magnification, takes a standard video sequence as input, and applies spatial decomposition, followed by temporal filtering to the frames. The resulting signal is then amplified to reveal hidden information. Using our method, we are able to visualize the flow of blood as it fills the face and also to amplify and reveal small motions. Our technique can run in real time to show phenomena occurring at temporal frequencies selected by the user. This is amazing: track the pulse in your face from a few frames. (via Hacker News)
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Four short links: 29 May 2012

Four short links: 29 May 2012

AR Theme Park, Digital Citizenship, Simulating Faces, and Reverse-Engineering Pixels

  1. South Korean Kinect+RFID Augmented Reality Theme Park Sixty-five attractions over seven thematic stages contribute to the experience, which uses 3D video, holograms and augmented reality to immerse guests. As visitors and their avatars move through the park, they interact with the attractions using RFID wristbands, while Kinect sensors recognize their gestures, voices and faces. (via Seb Chan)
  2. Digital Citizenship — computers in schools should be about more than teaching more than just typing to kids, they should know how to intelligently surf, to assess the quality of their sources, to stay safe from scammers and bullies, to have all the training they need to be citizens in an age when life is increasingly lived online. (via Pia Waugh)
  3. Simulating Anatomically Accurate Facial Expressions (University of Auckland) — video of a talk demonstrating biomechanical models which permit anatomically accurate facial models.
  4. Depixelizing Pixel Art (Microsoft Research) — this is totally awesome: turning pixel images into vector drawings, which of course can be smoothly scaled. (via Bruce Sterling)
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Four short links: 24 May 2012

Four short links: 24 May 2012

Maker Tribe, Concept Mapping, Magic Wand, and Site Performance Matters

  1. Last Saturday My Son Found His People at the Maker Faire — aww to the power of INFINITY.
  2. Dictionaries Linking Words to Concepts (Google Research) — Wikipedia entries for concepts, text strings from searches and the oppressed workers down the Text Mines, and a count indicating how often the two were related.
  3. Magic Wand (Kickstarter) — I don’t want the game, I want a Bluetooth magic wand. I don’t want to click the OK button, I want to wave a wand and make it so! (via Pete Warden)
  4. E-Commerce Performance (Luke Wroblewski) — If a page load takes more than two seconds, 40% are likely to abandon that site. This is why you should follow Steve Souders like a hawk: if your site is slower than it could be, you’re leaving money on the table.
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Four short links: 10 May 2012

Four short links: 10 May 2012

Illuminated Mario, Touchstone Facts, Calculating Spamicity, and Abstract Quantified Self

  1. Gravity in the Margins (Got Medieval) — illuminating illuminated manuscripts with Mario. (via BoingBoing)
  2. Hours Days, Who’s Counting? (Jon Udell) — What prompted me to check? My friend Mike Caulfield, who’s been teaching and writing about quantitative literacy, says it’s because in this case I did have some touchstone facts parked in my head, including the number 10 million (roughly) for barrels of oil imported daily to the US. The reason I’ve been working through a bunch of WolframAlpha exercises lately is that I know I don’t have those touchstones in other areas, and want to develop them. The idea of “touchstone facts” resonates with me.
  3. Spotting Fake Reviewer Groups in Consumer Reviews (PDF) — gotta love any paper that says We calculated the “spamicity” (degree of spam) of each group by assigning 1 point for each spam judgment, 0.5 point for each borderline judgment and 0 point for each non-spam judgment a group received and took the average of all 8 labelers. (via Google Research Blog)
  4. Visualizing Physical Activity Using Abstract Ambient Art (Quantified Self) — kinda like the iTunes visualizer but for your Fitbit Tracker.
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Four short links: 2 May 2012

Four short links: 2 May 2012

Elective Dickery, Probabilistic Data Analysis, Data Cleaning, and SSL Security

  1. Punting on SxSW (Brad Feld) — I came across this old post and thought: if you can make money by being a dick, or make money by being a caring family person, why would you choose to be a dick? As far as I can tell, being a dick is optional. Brogrammers, take note. Be more like Brad Feld, who prioritises his family and acts accordingly.
  2. Probabilistic Structures for Data Mining — readable introduction to useful algorithms and datastructures showing their performance, reliability, and resources trade-off. (via Hacker News)
  3. Dataset — a Javascript library for transforming, querying, manipulating data from different sources.
  4. Many HTTPS Servers are Insecure — 75% still vulnerable to the BEAST attack.
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Four short links: 3 April 2012

Four short links: 3 April 2012

CS for Kids, Pwn in a Box, Mobile Companions, and 8-bit Linux

  1. Why Our Kids Should Be Taught To Code (Guardian) — if we don’t act now we will be short-changing our children. [...] their world will be also shaped and configured by networked computing and if they don’t have a deeper understanding of this stuff then they will effectively be intellectually crippled. They will grow up as passive consumers of closed devices and services, leading lives that are increasingly circumscribed by technologies created by elites working for huge corporations such as Google, Facebook and the like. We will, in effect, be breeding generations of hamsters for the glittering wheels of cages built by Mark Zuckerberg and his kind. (via Karl von Randow)
  2. The Pwn Plug — $770 gets you a wall-wart full of network attack tools and wifi for remote access. Plug and Pwn. (via Ars Technica)
  3. Mobile Phone as Companion Species (Matt Jones) — They see the world differently to us, picking up on things we miss. They adapt to us, our routines. They look to us for attention, guidance and sustenance. We imagine what they are thinking, and vice-versa.
  4. 8-Bit Linux — Ubuntu 9 ported to an 6.5KHz 8-bit CPU (running a 32-bit emulator because Linux itself requires at least a 32-bit system). Takes 2 hours to boot up the kernel, four more to get to a login prompt. Moore’s Law for the win: I’ve seen more than 1000x improvement in speed from my first computer (1MHz C64) to current (1.7GHz i5). (via Slashdot)
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Four short links: 2 April 2012

Four short links: 2 April 2012

Wind Viz, CS For Fun, Software Defined Radio, and Copyright's Collateral Damage

  1. Wind Map — beautiful visualization of the winds across America.
  2. Computer Science for Fun — magazine for beginning students of computing.
  3. Cheap SDR — software defined radio for as little as $11. (via Slashdot)
  4. The Missing 20th Century (The Atlantic) — check out those graphs for a glaring hole caused by an overdose of copyright.
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Four short links: 27 March 2012

Four short links: 27 March 2012

Healthcare Ain't Silicon Valley, Math for Makers, Open Source Musician Tools, and Learn to Make Languages

  1. Five Tough Lessons I Had To Learn About Healthcare (Andy Oram) — I don’t normally link to things from Radar but this gels 110% with my limited experience with the healthcare industry.
  2. Makematics: Math for MakersI want the hardware hackers who are building the next generation of DIY 3D printers to be able to turn topological algorithms and concepts into open source tool path generation software that creates more efficient gcode and enables the fabrication of previously impossible physical forms. I don’t know the best way to go about this, but this site is intended to act as home for my experiments.
  3. CASH Music — they build open source tools for musicians and labels to make money. What WordPress did for bloggers, we’re doing for musicians. (via New York Times)
  4. PL101: Create Your Own Programming Language — you’ll build it in Javascript as you learn how programming languages and compilers work. It’ll run on AppEngine and be hosted on GitHub.
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