ENTRIES TAGGED "brain"

Four short links: 8 January 2014

Four short links: 8 January 2014

Cognition as a Service, Levy on NSA, SD-Sized Computer, and Learning Research

  1. Launching the Wolfram Connected Devices Project — Wolfram Alpha is cognition-as-a-service, which they hope to embed in devices. This data-powered Brain-in-the-Cloud play will pit them against Google, but G wants to own the devices and the apps and the eyeballs that watch them … interesting times ahead!
  2. How the USA Almost Killed the Internet (Wired) — “At first we were in an arms race with sophisticated criminals,” says Eric Grosse, Google’s head of security. “Then we found ourselves in an arms race with certain nation-state actors [with a reputation for cyberattacks]. And now we’re in an arms race with the best nation-state actors.”
  3. Intel Edison — SD-card sized, with low-power 22nm 400MHz Intel Quark processor with two cores, integrated Wi-Fi and Bluetooth.
  4. N00b 2 L33t, Now With Graphs (Tom Stafford) — open science research validating many of the findings on learning, tested experimentally via games. In the present study, we analyzed data from a very large sample (N = 854,064) of players of an online game involving rapid perception, decision making, and motor responding. Use of game data allowed us to connect, for the first time, rich details of training history with measures of performance from participants engaged for a sustained amount of time in effortful practice. We showed that lawful relations exist between practice amount and subsequent performance, and between practice spacing and subsequent performance. Our methodology allowed an in situ confirmation of results long established in the experimental literature on skill acquisition. Additionally, we showed that greater initial variation in performance is linked to higher subsequent performance, a result we link to the exploration/exploitation trade-off from the computational framework of reinforcement learning.
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Four short links: 17 December 2013

Four short links: 17 December 2013

Graph Compression, Learning Minecraft Coding, Performance Enhancing, and Explained Shell

  1. WebGraph a framework for graph compression aimed at studying web graphs. It provides simple ways to manage very large graphs, exploiting modern compression techniques. (via Ben Lorica)
  2. Learn to Program with Minecraft PluginsYou’ll need to add features to the game itself: learn how to build plugins for your own Minecraft server using the Java programming language. You don’t need to know anything about programming to get started—-this book will teach you everything you need to know! Shameless Christmas stocking bait! (via Greg Borenstein)
  3. In Search of Perfection, Young Adults Turn to Adderall at Work (Al Jazeera) — “Adderall is just the tip of the iceberg,” Essig said. “There are lots more drugs coming down the pike. The way we set up our cultural model for dealing with psychologically performance-enhancing drugs is a real serious question.”
  4. Explain Shell — uses parsed manpages to explain a shell commandline. (via Tracy K Teal)
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Four short links: 20 August 2013

Four short links: 20 August 2013

Better Tutorials, Self-Talk, Better AI, and Visualised Mechanics

  1. pineapple.io — attempt to crowdsource rankings for tutorials for important products, so you’re not picking your way through Google search results littered with tutorials written by incompetent illiterates for past versions of the software.
  2. BBC ForumAmerican social psychologist Aleks Krotoski has been looking at how the internet affects the way we talk to ourselves. Podcast (available for next 30 days) from BBC. (via Vaughan Bell)
  3. Why Can’t My Computer Understand Me (New Yorker) — using anaphora as the basis of an intelligence test, as example of what AI should be striving for. It’s not just that contemporary A.I. hasn’t solved these kinds of problems yet; it’s that contemporary A.I. has largely forgotten about them. In Levesque’s view, the field of artificial intelligence has fallen into a trap of “serial silver bulletism,” always looking to the next big thing, whether it’s expert systems or Big Data, but never painstakingly analyzing all of the subtle and deep knowledge that ordinary human beings possess. That’s a gargantuan task— “more like scaling a mountain than shoveling a driveway,” as Levesque writes. But it’s what the field needs to do.
  4. 507 Mechanical Movements — an old basic engineering textbook, animated. Me gusta.
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Four short links: 8 August 2013

Four short links: 8 August 2013

Distrusting CA Certs, Brain Talk, Ineffective Interventions, and Visual A/B Tools

  1. Reducing the Roots of Some Evil (Etsy) — Based on our first two months of data we have removed a number of unused CA certificates from some pilot systems to test the effects, and will run CAWatch for a full six months to build up a more comprehensive view of what CAs are in active use. Sign of how broken the CA system for SSL is. (via Alex Dong)
  2. Mind the Brain — PLOS podcast interviews Sci Foo alum and delicious neuroscience brain of awesome, Vaughan Bell. (via Fabiana Kubke)
  3. How Often are Ineffective Interventions Still Used in Practice? (PLOSone) — tl;dr: 8% of the time. Imagine the number if you asked how often ineffective software development practices are still used.
  4. Announcing Evan’s Awesome A/B ToolsI am calling these tools awesome because they are intuitive, visual, and easy-to-use. Unlike other online statistical calculators you’ve probably seen, they’ll help you understand what’s going on “under the hood” of common statistical tests, and by providing ample visual context, they make it easy for you to explain p-values and confidence intervals to your boss. (And they’re free!)
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Four short links: 26 June 2013

Four short links: 26 June 2013

Neural Memory Allocation, DoD Synthbio, Sierra Leone Makers, and Complex Humanities Networks

  1. Memory Allocation in Brains (PDF) — The results reviewed here suggest that there are competitive mechanisms that affect memory allocation. For example, new dentate gyrus neurons, amygdala cells with higher excitability, and synapses near previously potentiated synapses seem to have the competitive edge over other cells and synapses and thus affect memory allocation with time scales of weeks, hours, and minutes. Are all memory allocation mechanisms competitive, or are there mechanisms of memory allocation that do not involve competition? Even though it is difficult to resolve this question at the current time, it is important to note that most mechanisms of memory allocation in computers do not involve competition. Does the dissector use a slab allocator? Tip your waiter, try the veal.
  2. Living Foundries (DARPA) — one motivating, widespread and currently intractable problem is that of corrosion/materials degradation. The DoD must operate in all environments, including some of the most corrosively aggressive on Earth, and do so with increasingly complex heterogeneous materials systems. This multifaceted and ubiquitous problem costs the DoD approximately $23 Billion per year. The ability to truly program and engineer biology, would enable the capability to design and engineer systems to rapidly and dynamically prevent, seek out, identify and repair corrosion/materials degradation. (via Motley Fool)
  3. Innovate Salone — finalists from a Sierra Leone maker/innovation contest. Part of David Sengeh‘s excellent work.
  4. Arts, Humanities, and Complex Networks — ebook series, conferences, talks, on network analysis in the humanities. Everything from Protestant letter networks in the reign of Mary, to the repertory of 16th century polyphony, to a data-driven update to Alfred Barr’s diagram of cubism and abstract art (original here).
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Four short links: 30 May 2013

Four short links: 30 May 2013

Inside NASDAQ's Failbook, SimAustralia, Distraction Attraction, and Big Brother Says "Wash Your Hands!"

  1. Facebook IPO Tech Post-Mortem (PDF) — SEC’s analysis of the failures that led to the NASDAQ kicking Facebook’s IPO in the NADSAQ. (via Quartz)
  2. Run That Town — SimCity for real cities, from the Australian Bureau of Statistics and using real census data. No mention of whether you can make your citizens shout “Aussie Aussie Aussie, Oi Oi Oi!” after three cans of lager at an Aussie Rules game. (via John Birmingham)
  3. Maintaining Focus (The Atlantic) — excellent Linda Stone interview. We may think that kids have a natural fascination with phones. Really, children have a fascination with what-ever Mom and Dad find fascinating. If they are fascinated by the flowers coming up in the yard, that’s what the children are going to find fascinating. And if Mom and Dad can’t put down the device with the screen, the child is going to think, That’s where it’s all at, that’s where I need to be! I interviewed kids between the ages of 7 and 12 about this. They said things like “My mom should make eye contact with me when she talks to me” and “I used to watch TV with my dad, but now he has his iPad, and I watch by myself.”
  4. Networked Motion Sensors in Hospital Bathrooms (NY Times) — At North Shore University Hospital on Long Island, motion sensors, like those used for burglar alarms, go off every time someone enters an intensive care room. The sensor triggers a video camera, which transmits its images halfway around the world to India, where workers are checking to see if doctors and nurses are performing a critical procedure: washing their hands. [...] the video monitoring program, run by a company called Arrowsight, has been adapted from the meat industry, where cameras track whether workers who skin animals — the hide can contaminate the meat — wash their hands, knives and electric cutters.
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Four short links: 19 February 2013

Four short links: 19 February 2013

Underground Economy, Continuous Integration, Chinese Cyber-Espionage, Prosthesis From The Future

  1. Using Silk Road — exploring the transactions, probability of being busted, and more. Had me at the heading Silk Road as Cyphernomicon’s black markets. Estimates of risk of participating in the underground economy.
  2. Travis CIa hosted continuous integration service for the open source community. It is integrated with GitHub.
  3. Chinese Cyber-Espionage Unit (PDF) — exposé of one of China’s Cyber Espionage Units. (via Reddit /r/netsec)
  4. $250 Arduino-Powered Hand Made by a Teenthe third version of his robotic hand. The hand is primarily made with 3D printing, with the exception of motors, gears, and other hardware. The control system is activated by flexing a pre-chosen muscle, such as curling your toes, then the movement is chosen and controlled by a series of eyeblinks and an EEG headset to measure brainwaves. The most remarkable part is that the hand costs a mere $250.
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Four short links: 6 September 2012

Four short links: 6 September 2012

Human Genome Doxed, Programmed by Movies, CritterDrones, and Responsive Websites

  1. ENCODE Project — International project (headed by Ewan Birney of BioPerl fame) doxes the human genome, bigtime. See the Nature piece, and Ed Yong’s explanation of the awesome for more. Not only did they release the data, but also the software, including a custom VM.
  2. 5 Ways You Don’t Realize Movies Are Controlling Your Brain — this! is! awesome!
  3. RC Grasshoppers — not a band name, an Israeli research project funded by the US Army, to remotely-control insects in flight. Instead of building a tiny plane whose dimensions would be measured in centimeters, the researchers are taking advantage of 300 million years of evolution.
  4. enquire.js — small Javascript library for building responsive websites. (via Darren Wood)
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Four short links: 8 August 2012

Four short links: 8 August 2012

Reading Minds, Satellites in the Cloud, Units for Risk, and Valuing Autism

  1. Reconstructing Visual Experiences (PDF) — early visual areas represent the information in movies. To demonstrate the power of our approach, we also constructed a Bayesian decoder by combining estimated encoding models with a sampled natural movie prior. The decoder provides remarkable reconstructions of the viewed movies. These results demonstrate that dynamic brain activity measured under naturalistic conditions can be decoded using current fMRI technology.
  2. Earth Engine — satellite imagery and API for coding against it, to do things like detecting deforestation, classifying land cover, estimating forest biomass and carbon, and mapping the world’s roadless areas.
  3. Microlives — 30m of your life expectancy. Here are some things that would, on average, cost a 30-year-old man 1 microlife: Smoking 2 cigarettes; Drinking 7 units of alcohol (eg 2 pints of strong beer); Each day of being 5 Kg overweight. A chest X-ray will set a middle-aged person back around 2 microlives, while a whole body CT-scan would weigh in at around 180 microlives.
  4. Autistics Need Opportunities More Than Treatment — Laurent gave a powerful talk at Sci Foo: if the autistic brain is better at pattern matching, find jobs where that’s useful. Like, say, science. The autistic woman who was delivering mail became a research assistant in his lab, now has papers galore to her name for original research.
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“It’s impossible for me to die”

“It’s impossible for me to die”

Julien Smith on the realities of modern safety and our misfiring flinch reflexes.

Julien Smith believes I won’t let him die.

The subject came up during our interview at Foo Camp 2012 — part of our ongoing foo interview series — in which Smith argued that our brains and innate responses don’t always map to the safety of our modern world:

“We’re in a place where it’s fundamentally almost impossible to die. I could literally — there’s a table in front of me made of glass — I could throw myself onto the table. I could attempt to even cut myself in the face or the throat, and before I did that, all these things would stop me. You would find a way to stop me. It’s impossible for me to die.”

[Discussed at the 5:16 mark in the associated video interview.]

Smith didn’t test his theory, but he makes a good point. The way we respond to the world often doesn’t correspond with the world’s true state. And he’s right about that not-letting-him-die thing; myself and the other people in the room would have jumped in had he crashed through a pane of glass. He would have then gone to an emergency room where the doctors and nurses would usher him through a life-saving process. The whole thing is set up to keep him among the living.

Acknowledging the safety of an environment isn’t something most people do by default. Perhaps we don’t want to tempt fate. Or maybe we’re wired to identify threats even when they’re not present. This disconnect between our ancient physical responses and our modern environments is one of the things Smith explores in his book The Flinch.

Read more…

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