ENTRIES TAGGED "cv"

Four short links: 29 July 2014

Four short links: 29 July 2014

Community Detection, Proven Kernel, Graph Processing on GPUs, and Browser Vision

  1. Online Community Detection for Large Complex Networks (PLosONE) — readable recount of earlier algorithms and inventions in the area, as well as a new algorithm with linear time complexity for large complex networks.
  2. sel4 — open source OS kernel (GPLv2, most userland is BSD) with end-to-end proof of implementation correctness and security enforcement. (For a discussion of what’s verified, see this blog post)
  3. mapgraph.ioMassively Parallel Graph processing on GPUs. (via Leo Meyerovich)
  4. tracking.js — browser framework and algorithms for computer vision algorithms and frameworks.
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Four short links: 24 April 2014

Four short links: 24 April 2014

Image Depth, Stress and Burnout, Tribal Software, and Face Recognition

  1. Depthy — new Google Camera app lets you capture some depth information, stored in metadata in the image. Nifty effects become possible.
  2. Coping with Stress and Burnout: Explanatory Power of Different Coping Strategies (PLoSone)– interesting taxonomy of burnout (overload, lack of development, and neglect) found by clustering responses to surveys, which also showed key signs. (via Psychological Science)
  3. Why is StackOverflow So Negative of Late? — my current theory is that social activities (sites, events, etc.) are journeys for cohorts. Newcomers don’t get as much from it, and the original cohort don’t enjoy newcomers. Social sites tend to rock at first until They arrive and ruin it for all. cf Burning Man. Newcomers will have to start their own site/event, but if they never get critical mass of the A-grade people who joined the first wave, their own event may fail.
  4. Surpassing Human-Level Face Verification Performance on LFW with GaussianFace (arXiv) — For the first time, the human-level performance in face verification (97.53%) on LFW [the standard "hard" face recognition data set] is surpassed. (via Medium)
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Four short links: 8 April 2014

Four short links: 8 April 2014

Our Robot Future, Embeddable Pi, Behavioural Economics Not Solved Problem, and Imagine Processing Language

  1. Next Five Years for Robots — plausible summary of the near future progression, taken from Helen Greiner’s DEMOlabs talk.
  2. Raspberry Pi Compute Modulea Raspberry Pi shrunk down to fit on a SODIMM with onboard memory, whose connectors you can customise for your own needs. (via Makezine)
  3. Behavioural Economics and Public Policy (Financial Times) — interesting how A/B trials revealed that implementations of Cialdini’s social proof didn’t test as well as non-social-proof persuasive techniques. More useful than something that claims to be the right answer is knowing when you’re closer to the right answer. (via Mind Hacks)
  4. Halide Language — open source programming language designed to make it easier to write high-performance image processing code on modern machines. Its current front end is embedded in C++. Compiler targets include x86/SSE, ARM v7/NEON, CUDA, Native Client, and OpenCL.
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Four short links: 14 March 2014

Four short links: 14 March 2014

Facebook Criticism, New Games, Face Recognition, and Public Uber

  1. The Facebook experiment has failed. Let’s go backFacebook gets worse the more you use it. The innovation within Facebook happens within a framework that’s taken as given. This essay questions that frame, well.
  2. Meet the People Making New Games for Old Hardware“We’re all fighting for the same goal,” Cobb says. “There’s something artistic, and disciplined, about creating games for machines with limited hardware. You can’t pass off bloat as content, and you can’t drop in a licensed album in place of a hand-crafted digital soundtrack. To make something great you have to work hard, and straight from the heart. That’s what a lot of gamers still wish to see. And we’re happy to provide it for them.”
  3. DeepFace: Closing the Gap to Human-Level Performance in Face Verification — Facebook research into using deep neural networks for face recognition. Our method reaches an accuracy of 97.25% on the Labeled Faces in the Wild (LFW) dataset, reducing the error of the current state of the art by more than 25%, closely approaching human-level performance. “The best minds of my generation are thinking about how to make people click ads.” —Jeff Hammerbacher.
  4. Helsinki Does Uber for BusesHelsinki’s Kutsuplus lets you select your pick-up and drop-off locations and times, using a phone app, and then sends out a bus to take you exactly where you need to go.
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Four short links: 6 March 2014

Four short links: 6 March 2014

Repoveillance, Mobiveillance, Discovery and Orchestration, and Video Analysis

  1. Repo Surveillance NetworkAn automated reader attached to the spotter car takes a picture of every ­license plate it passes and sends it to a company in Texas that already has more than 1.8 billion plate scans from vehicles across the country.
  2. Mobile Companies Work Big DataMeanwhile companies are taking different approaches to user consent. Orange collects data for its Flux Vision data product from French mobile users without offering a way for them to opt-out, as does Telefonica’s equivalent service. Verizon told customers in 2011 it could use their data and now includes 100 million retail mobile customers by default, though they can opt out online.
  3. Serfdoma decentralised solution for service discovery and orchestration that is lightweight, highly available, and fault tolerant.
  4. Longomatcha free video analysis software for sport analysts with unlimited possibilities: Record, Tag, Review, Draw, Edit Videos and much more! (via Mark Osborne)
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Four short links: 13 January 2014

Four short links: 13 January 2014

S3 Consistency, Paper Drone, Face Substitution, and Wearable Options

  1. s3mper (Github) — Netflix’s library to add consistency checking to S3. (via Netflix tech blog)
  2. Powerup Smartphone-Controlled Paper Airplane — boggle. You know the future is here when you realise you’re on the Internet of Trivial Things.
  3. clmtrackr (Github) — real-time face recognition, deformation, and substitution in Javascript. Boggle.
  4. Nine Wearables (Quartz) — a roundup of Glass-inspired wearables, including projecting onto contact lenses which wins today’s “most squicky idea” award.
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Four short links: 23 December 2013

Four short links: 23 December 2013

Lightweight Flying Robot, Autonomous Weapons, Scientific Irony, and Insecurity of Password Management Extensions

  1. DelFly Explorer — 20 grams, 9 minutes of autonomous flight, via barometer and new stereo vision system. (via Wayne Radinsky)
  2. Banning Autonomous Killing Machines (Tech Republic) — While no autonomous weapons have been built yet, it’s not a theoretical concern, either. Late last year, the U.S. Department of Defense (DoD) released its policy around how autonomous weapons should be used if they were to be deployed in the battlefield. The policy limits how they should operate, but definitely doesn’t ban them. (via Slashdot)
  3. Scientific Data Lost at Alarming Rate — says scientific paper PUBLISHED BEHIND A PAYWALL.
  4. Security of Browser Extension Password Managers (PDF) — This research shows that the examined password managers made design decisions that greatly increase the chance of users unknowingly exposing their passwords through application-level flaws. Many of the flaws relate to the browser-integrated password managers that don’t follow the same-origin policy that is crucial to browser security. In the case of password managers, this means that passwords could be filled into unintended credential forms, making password theft easier.
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Four short links: 3 December 2013

Four short links: 3 December 2013

  1. SAMOA — Yahoo!’s distributed streaming machine learning (ML) framework that contains a programming abstraction for distributed streaming ML algorithms. (via Introducing SAMOA)
  2. madliban open-source library for scalable in-database analytics. It provides data-parallel implementations of mathematical, statistical and machine-learning methods for structured and unstructured data.
  3. Data Portraits: Connecting People of Opposing Views — Yahoo! Labs research to break the filter bubble. Connect people who disagree on issue X (e.g., abortion) but who agree on issue Y (e.g., Latin American interventionism), and present the differences and similarities visually (they used wordclouds). Our results suggest that organic visualisation may revert the negative effects of providing potentially sensitive content. (via MIT Technology Review)
  4. Disguise Detection — using Raspberry Pi, Arduino, and Python.
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Four short links: 22 November 2013

Four short links: 22 November 2013

GAFE MOOCs, Recommendations Considered Self-Fulfilling Prophecy, Glitch Art Given, and Cool Visual Hack

  1. Google Educator MOOCs — online courses for teachers who use Google in their classrooms.
  2. Algorithms and AccountabilityThus, the appearance of an autocompletion suggestion during the search process might make people decide to search for this suggestion although they didn’t have the intention to. A recent paper by Baker and Potts (2013) consequently questions “the extent to which such algorithms inadvertently help to perpetuate negative stereotypes”. (via New Aesthetic Tumblr)
  3. Glitch Content Enters Public Domain — amazing contribution of content, not just “open sourcing” but using CC0 to give the public the maximum possible rights for reuse.
  4. Sprite Lampa tool to help game developers combine 2D art, such as digital painting or pixel art, with dynamic lighting. This is pretty darn cool. (via Greg Borenstein)
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Four short links: 16 April 2013

Four short links: 16 April 2013

Email Triage, Pulse Detection, Big Building Data, and Raspberryduino Ardpi

  1. Triage — iPhone app to quickly triage your email in your downtime. See also the backstory. Awesome UI.
  2. Webcam Pulse Detector — I was wondering how long it would take someone to do the Eulerian video magnification in real code. Now I’m wondering how long it will take the patent-inspired takedown…
  3. How Microsoft Quietly Built the City of the FutureThe team now collects 500 million data transactions every 24 hours, and the smart buildings software presents engineers with prioritized lists of misbehaving equipment. Algorithms can balance out the cost of a fix in terms of money and energy being wasted with other factors such as how much impact fixing it will have on employees who work in that building. Because of that kind of analysis, a lower-cost problem in a research lab with critical operations may rank higher priority-wise than a higher-cost fix that directly affects few. Almost half of the issues the system identifies can be corrected in under a minute, Smith says.
  4. UDOO (Kickstarter) — mini PC that could run either Android or Linux, with an Arduino-compatible board embedded. Like faster Raspberry Pi but with Arduino Due-compatible I/O.
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