ENTRIES TAGGED "mobile"

Four short links: 14 October 2013

Four short links: 14 October 2013

Recognising Hand Gestures, Drone Conference, Stubbornly Open Codes, and Remote Mobile Display

  1. An Interactive Machine Learning System for Recognizing Hand Gestures (Greg Borenstein) — a mixed-initiative interactive machine learning system for recognizing hand gestures. It attempts to give the user visibility into the classifier’s prediction confidence and control of the conditions under which the system actively requests labeled gestures when its predictions are uncertain. (an exercise for his MIT class)
  2. First Drone Conference Takes Off (Makezine) — forgive them the puns, Lord, for they know not what they do … uble intendre. Write-up fascinating beyond the headline. Dr. Vijay Kumar of the University of Pennsylvania School of Engineering spoke about socially positive uses for aerial robotics, such as emergency first responders. Dr. Kumar’s work focuses on micro aerial vehicles. He explains that, “size does matter.” As robots get smaller, mass and inertial is reduced. If you halve the mass, the acceleration doubles and the angular acceleration quadruples. This makes for a robot that is fast and responsive, ideal for operating indoors or out, and perfect for search and rescue missions in collapsed buildings or around other hazards.
  3. Standing Up to Mississippi (Carl Malamud) — yesterday we received a Certified Letter from the Attorney General’s Special Assistant Attorney General demanding that we remove these materials from the Internet and all other electronic or non-electronic media. There was no email address, so I proceeded to prepare a 67-page return reply with Exhibits A-L. I thought folks might be interested in the 7 steps of the production process. Give to his Kickstarter project, folks!
  4. Open Project (PDF) — A lightweight framework for remote sharing of mobile applications. Sounds like malware but is Google Research project.
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Measuring Mobile Performance

Velocity 2013 Speaker Series: A Sneak Peek With WebPagetest and Appurify

Now that more companies have basic mobile strategies in place, they are turning their attention to the issue of performance.

Mobile developers are thinking about how fast their apps and mobile webpages load and—more importantly—what they can do to make them faster. Consumers have little patience for slow loading apps and their expectations are only going to get more stringent. This expectation likely contributed to Apple making changes so that apps on iOS 7 load 11% faster than on iOS 6.

The challenge is that measuring performance for mobile is not as easy as it is for web. Many of us have used tools like WebPagetest to assess website performance across different browsers/locations and pinpoint areas for improvement but fully functional, equivalent tools don’t exist yet for the mobile space.

This has left mobile developers ill equipped to create the highest-performing mobile apps and websites.
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Upward Mobility: Dig Out Your Tin-Foil Hats

Thanks NSA, you've spoiled mobile crowdsourcing for everyone else!

The continual drip-drip-drop of NSA secrets, courtesy of Monsieur Snowden, has provided many of us with a new piece of daily entertainment. But as much fun as it can be to see No Such Agency’s dirty laundry being aired in public, it has a real and lasting affect on how consumers are going to see interacting with their mobile devices. Specifically, it could provide a major setback to the new universe of applications that use crowdsourced data.

There are lots of examples of highly successful apps that are essentially just aggregations of user-provided data. Yelp comes to mind immediately, but another good example is Waze. In both cases, users are providing the service with some fairly private information, where and when they were at a particular location. Waze is even more sensitive, because it is also recording your speed, which might be a bit higher than the posted limits.

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Four short links: 9 September 2013

Four short links: 9 September 2013

Google Play Services, Self-Signed Kernels, Visualising Scientific Papers, and New Microcontroller

  1. How Google’s Defragging Android (Ars Technica) — Android’s becoming a pudgy microkernel for the Google Play Services layer that’s in userland, closed source, and a way to bypass carriers’ lag for upgrades.
  2. Booting a Self-Signed Linux Kernel (Greg Kroah-Hartman) — procedures for how to boot a self-signed Linux kernel on a platform so that you do not have to rely on any external signing authority.
  3. PaperscapeA map of scientific papers from the arXiv.
  4. Trinket — Adafruit’s latest microcontroller board. Small but perfectly formed.
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The Role of Big Data in Personalizing the Healthcare Experience: Mobile

Sensors, games, and social networking all create change in health and fitness

This article was written with Ellen M. Martin and Tobi Skotnes. Dr. Feldman will deliver a webinar on this topic on September 18 and will speak about it at the Strata Rx conference.

Cheaper, faster, better technology is enabling nearly one in four people around the world to connect with each other anytime, anywhere, as online social networks have changed the way we live, work and play. In healthcare, the data generated by mobile phones and sensors can give us new information about ourselves, extend the reach of our healers and help to accelerate a societal shift towards greater personal engagement in healthcare.

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The Ever-Changing Landscape of Mobile Gaming

Unity, iOS 7, and the Quest for a Great Mobile Game Experience

Jon Manning (@desplesda) and Paris Buttfield-Addison (@parisba) talk with me about where mobile gaming is going in the next 12 months.

Key highlights include:

  • Game-specific APIs and standardized gaming accessories in iOS 7 [Discussed at 0:20]
  • Android needs to catch up [Discussed at 1:55]
  • Are tablets putting handheld consoles from Nintendo and Sony out of business? [Discussed at 3:13]
  • Independent developers vs big game studios – fight! [Discussed at 4:53]
  • Unity is now free for mobile game development [Discussed at 6:02]

You can view the full interview here:

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Four short links: 31 July 2013

Four short links: 31 July 2013

Mobile Image Cache, Google on Net Neutrality, Future of Programming, and PSD Files in Ruby

  1. How to Easily Resize and Cache Images for the Mobile Web (Pete Warden) — I set up a server running the excellent ImageProxy open-source project, and then I placed a Cloudfront CDN in front of it to cache the results. (a how-to covering the tricksy bits)
  2. Google’s Position on Net Neutrality Changes? (Wired) — At issue is Google Fiber’s Terms of Service, which contains a broad prohibition against customers attaching “servers” to its ultrafast 1 Gbps network in Kansas City. Google wants to ban the use of servers because it plans to offer a business class offering in the future. [...] In its response [to a complaint], Google defended its sweeping ban by citing the very ISPs it opposed through the years-long fight for rules that require broadband providers to treat all packets equally.
  3. The Future of Programming (Bret Victor) — gorgeous slides, fascinating talk, and this advice from Alan Kay: I think the trick with knowledge is to “acquire it, and forget all except the perfume” — because it is noisy and sometimes drowns out one’s own “brain voices”. The perfume part is important because it will help find the knowledge again to help get to the destinations the inner urges pick.
  4. psd.rb — Ruby code for reading PSD files (MIT licensed).
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Four short links: 23 July 2013

Four short links: 23 July 2013

Security Sensor, Mobile Speed, Rate Limiting, and Self-Assembling Drone

  1. Canary (IndieGogo) — security sensor with video, motion, temperature, microphone, speaker, accelerometer, and smartphone remote control.
  2. Page Speed is Only The Beginning73% of mobile internet users say they’ve encountered Web pages that are too slow. A 1 second delay can result in a 7% reduction in conversions.
  3. Rate Limiting and Velocity Checking (Jeff Atwood) — I was shocked how little comprehensive information was out there on rate limiting and velocity checking for software developers, because they are your first and most important line of defense against a broad spectrum of possible attacks. It’s amazing how many attacks you can mitigate or even defeat by instituting basic rate limiting. (via Alex Dong)
  4. Self-Assembling Multicopter (DIY Drones) — The true accomplishment of this research is that there is not one robot in control – each unit in itself decides what actions to take to keep the group in the air in what’s known as Distributed Flight Array. (via Slashdot)
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Four short links: 15 July 2013

Four short links: 15 July 2013

  1. Product Strategy Means Saying No — a resource for strength in saying ‘no’ to unplanned features and direction changes. My favourite illustration is for “but my cousin’s neighbour said”. Yes, this.
  2. git-imerge — incremental merge for git.
  3. The Paranoid #! Security GuideNetworked-Evil-Maid-Attacks (Attacker steals the actual SED and replaces it with another containing a tojanized OS. On bootup victim enters it’s password which is subsequently send to the attacker via network/local attacker hot-spot. Different method: Replacing a laptop with a similar model [at e.g. airport/hotel etc.] and the attacker’s phone# printed on the bottom of the machine. Victim boots up enters “wrong” password which is send to the attacker via network. Victim discovers that his laptop has been misplaced, calls attacker who now copies the content and gives the “misplaced” laptop back to the owner.)
  4. Why Mobile Web Apps Are Slow — long analysis. Just to be clear: is possible to do real-time collaboration on on a mobile device. It just isn’t possible to do it in JavaScript. The performance gap between native and web apps is comparable to the performance gap between FireFox and IE8, which is too large a gap for serious work. (via Slashdot)
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Optimizing Your Websites for Smartphones, Tablets, and More

How to "future-proof" your sites

Users expect to be able to use and bookmark a website by name—always the same name, regardless of the device used to reach and view the site. From a user’s standpoint, a site is a site regardless of which device is being used to reach it. The code that backs up the site should be smart enough to detect the requesting device and intelligently serve the most appropriate markup.

There are several ways to achieve this goal, and at least three realistic scenarios.

Distinct Sites for Mobile and Desktop

Modern websites are built around the typical size of a desktop or laptop monitor. In fact, until the advent of iPhones, web developers rarely considered the need to fit web content into different sizes. Now, however, establishing an effective presence on mobile devices is a necessity. Just because your websites can be accessed by smartphones and tablets doesn’t make them effective. To provide an effective experience, you must optimize your sites for specific classes of devices—typically, smartphones and tablets. For quite some time, it seemed that distinct “m”-sites were a good-enough solution. For example, the website at www.somecompany.com was available in mobile-optimized form using the URL m.somecompany.com. In terms of development, the two sites are completely different; they were projects that simply shared some portions of the back end.
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