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Showing posts with label IPHONE. Show all posts
Showing posts with label IPHONE. Show all posts

Friday, December 30, 2011

The Law of Online Sharing




Facebook's Mark Zuckerberg will eventually have to deal with the fact that all growth has limits.

Credit: Technology Review
The idea of limitless growth gives sleepless nights to environmentalists, but not to Facebook founder Mark Zuckerberg. He espouses a law of social sharing, which predicts that every year, for the foreseeable future, the amount of information you share on the Web will double.

That rule of thumb can be visualized mathematically as a rapidly growing exponential curve. More simply, our online social lives are set to get significantly busier. As for Facebook, more personal data means better ad targeting. If things work out, Zuckerberg's net worth will follow a similar trajectory to that described in his law of social sharing.

That law is said to be mathematically derived from data inside Facebook. In ambition, it is closely modeled on Moore's Law, which was conceived by the computer-processor pioneer Gordon Moore in 1965 and has been at work in every advance in computing since. Also an exponential curve, it states that every two years twice as many transistors can be fitted onto a chip of any given area for the same price, allowing processing power to get cheaper and more capable.

There's a hint of vanity in Zuckerberg's attempt to ape Moore. But it makes sense to try to describe the mechanisms that have raised Facebook and other social-Web companies to power. The Web defines our time and is being rapidly reshaped by social content—from dumb viral videos to earnest pleas on serious issues. Facebook's success has left older companies like Google scrambling to add social features to their own products. Zuckerberg's Law can help us understand such a sudden change of tack from a seemingly dominant company, just as Moore's Law has long been used to plan and explain new strategies and technologies.

Inasmuch as Facebook is the company most invested in ­Zuckerberg's Law, its every move can be understood as an effort to sustain the graceful upward curve of its founder's formula. The short-term prospects look good for Zuckerberg. The original Moore's Law is on his side; faster, cheaper computers and mobile devices have made sharing easier and allowed us to do it wherever we go. Just as important, we are willing to play along, embracing new features from Facebook and others that lead us to share things today that we wouldn't or couldn't have yesterday.

Facebook's most recent major product launch, last September, is clearly aimed at validating Zuckerberg's prophecy and may provide its first real test. An upgrade to the Open Graph platform that unleashed the now ubiquitous Like button onto the Web , it added a feature that allows apps and Web sites to automatically share your activity via Facebook as you go about your business. Users must first give a service permission to share automatically on their behalf. After that, frictionless sharing, as it has become known, makes sharing happen without your needing to click a Like button, or to even think about sharing. The most prominent early implementation was the music-streaming service Spotify, which can now automatically post on Facebook the details of every song you listen to. In the first two months of frictionless sharing, more than 1.5 billion "listens" were shared through Spotify and other music apps. News organizations like the Washington Post use the feature, making it possible for them to share every article a person reads on their sites or in a dedicated app. Frictionless sharing is also helping Facebook drag formerly offline activities onto the Web. An app for runners can now automatically post the time, distance, and path of a person's morning run.

Frictionless sharing sustains ­Zuckerberg's Law by automating what used to be a manual task, thus removing a brake on the rate at which we can share. It also shows that we are willing to compromise our previous positions on how much sharing is too much. Facebook introduced a form of automatic sharing four years ago with a feature called Beacon, but it retreated after a strong backlash from users. Beacon automatically shared purchases that Facebook members made through affiliated online retailers, such as eBay. Frictionless sharing reintroduces the same basic model with the difference that it is opt-in rather than opt-out. Carl ­Sjogreen, a computer scientist who is a product director overseeing Open Graph, says it hasn't elicited anything like the rage that met Beacon's debut. "Everyone has a different idea of what they want to share, and what they want to see," says Sjogreen. Moreover, judging by the number of Spotify updates from my Facebook friends, frictionless sharing is pretty popular.

Privacy concerns will surely arise again as Facebook and others become able to ingest and process more of our personal data. Yet our urge to share always seems to win out. The potential for GPS-equipped cell phones to become location trackers, should the government demand access to our data, has long concerned some people. A South Park episode last year even portrayed an evil caricature of Apple boss Steve Jobs standing before a wall-sized map labeled "Where Everybody in the World Is Right Now." Six months later, to a mostly positive reception, Apple debuted a new iPhone feature called Find My Friends, which encourages users to let Apple track their location and share it.

It's not hard to explain why we seem eager to do our bit to maintain the march of Zuckerberg's Law. Social sites are like Skinner boxes: we press the Like button and are rewarded with attention and interaction from our friends. It doesn't take long to get conditioned to that reward. Frictionless sharing can now push the lever for us day and night, in hopes of drawing even more attention from others.

Unfortunately for Zuckerberg and his law, not every part of that feedback loop can be so easily boosted. Frictionless sharing helps, but getting others to care is the bigger challenge. In 2009 a new social site called Blippy was launched; it connected with your credit card to create a Twitter-style online feed of everything you bought. That stream could be made public or shared with particular contacts. Blippy got a lot of press but not the wide adoption its cofounder Philip Kaplan had hoped for. "Most people thought Blippy's biggest challenge would be getting users to share their purchases," he says. "Turns out the hard part was getting users to look at other people's purchases. Getting people to share is a small hump. Getting them to obsess over the data—making it fun, interesting, or useful—is the big hump."

Sjogreen has that problem in his sights. He says he is working on ways to turn the impending flood of daily trivialities coming from frictionless sharing into something fun, interesting, and useful. Repackaging the raw information to make it more compelling to others is one tactic. "It's the patterns and anomalies that matter to us," he says. For example, if you notice that a friend just watched 23 episodes of Breaking Bad in a row, you may decide you should check out that show after all. Or if he sets a new personal record on his morning run, the app in the phone strapped to his arm could automatically tout it to friends. Perhaps Blippy would have thrived if it highlighted significant purchases like vacations, instead of simply blasting people with everything from grocery lists to fuel bills.

We can only guess at the effectiveness of Sjogreen's future tactics, but it is certain that they can sustain Zuckerberg's Law for only so long. Gordon Moore put it well in 2005 when reflecting on the success of his own law: "It can't continue forever. The nature of exponentials is that you push them out and eventually disaster happens."

Facebook's impending problem is that even if the company enables future pacemakers to share our every heartbeat, the company cannot automate caring—the most important part of the feedback loop that has driven the social Web's ascent. Nothing can support exponential growth for long. No matter how cleverly our friends' social output is summarized and highlighted for us, there are only so many hours in the day for us to express that we care. Today, the law of social sharing is a useful way to think about the rise of social computing, but eventually, reality will make it obsolete.

Sunday, July 3, 2011

A Tablet that Wants to Take Over the Desktop


Cisco has redesigned the Android operating system to make a tablet that also works as a desktop computer—but it takes some control away from users.
New look: The Cius tablet features a radically
different version of Android.
Credit: Cisco.

The latest entrant in the increasingly crowded tablet computing field, Cisco's Cius, is bulkier than the iPad, and has a smaller screen (7-inches wide, compared to the iPad's 9.7). But it packs a number of tricks all of its own, designed to woo business users. The Cius is designed to integrate closely with Cisco's voice and video phone systems, and it can even replace a desktop computer when docked to a new Cisco deskphone, which connects to a monitor, keyboard and mouse.

A Cius tablet makes a user's desk number mobile, enabling a person to make and receive voice and video calls anywhere, if their company has a Cisco phone system. The tablet features HD quality cameras front and back and can be used with a Bluetooth headset for more private calling. The tablet can also be used as a desktop videoconferencing device when docked on a special desktop phone, and can smoothly switch between a WiFi a cellular network connection.

That dock can also be plugged into a monitor keyboard and mouse to act like a desktop computer. "It can replace my desktop operating system," says Tom Puorro, senior director for Cisco's collaboration technologies.

The Cius runs Google's Android mobile operating system, which is used on a rapidly growing number of smartphones and tablets as well. Android is open source, meaning it can be modified by anyone for free, yet so far most companies that have built gadgets running Android have tinkered with it little. The Cius, in contrast, features a radical reworking of Android.

This gives an IT department much greater control over what a Cius user can do. IT managers can shut down access to the Android app market to protect a company from malicious apps. Cisco has also created its own app store, AppHQ, that contains only apps deemed stable and secure by Cisco. Companies can even create their own app store within AppHQ and limit employees to certain applications, or apps built in house.

A WiFi only version of the tablet will be available worldwide from July 31 at an estimated price of $750. Cisco will sell it along with related services and infrastructure, so the cost to businesses will vary, and could be as low as $650. AT&T and Verizon will each offer versions for their 4G networks this fall.



A person can use the tablet's own OS or Windows even via a virtual desktop that runs in the cloud, as Puorro demonstrated at a launch event held in San Jose today. The tablet's powerful 1.6GHz Intel Atom processor allows desktop-like performance when hooked up to a keyboard, mouse and monitor. Although iPads are showing up in workplaces, they can't offer the same integration with everyday tasks like phone calls, and are limited to email, Web browsing and video, says Puorro.

Cisco worked with Google to get advice on its modifications to Android, says Puorro. These modifications enable Android to deal with video and operations like group calling and transferring calls, and make use of a dedicated chip in the tablet that encrypt all its data.
Desk mode: The Cius can be plugged into a new Cisco phone, and function as a desktop computer.
Credit: Cisco

However, the Cius lags other Android tablets in that it uses a now-outdated version of the operating system, code-named FroYo, which was intended only for phones. Cisco say they will catch up, but are waiting for the fall release of Android, code-named Ice Cream Sandwich, a version that Google says will seamlessly span phones and tablets.

Ken Dulaney, a VP and analyst with Gartner specializing in mobile devices says that Cisco has likely delivered something that none of the 200 or so other tablets launching this year can match. "Samsung's latest Galaxy Tab has much more advanced hardware," he says, "what Cisco has done is create a special case of Android that adds things the enterprise needs and is a unique combination of phone, tablet and videoconferencing device."

Other companies have hinted at plans for enterprise-friendly revamps of Android, says Dulaney, including Motorola, but none have so far yet delivered.

Although the Cius may not seem competitive with Apple's iPad 2 to consumers, to businesses concerned about their security it likely see distinct advantages. Apps such as MobileIron exist to help IT staff control iPads used by their staff, but Apple's operating system fundamentally limits the extent to which the iPad can be managed remotely, says Dulaney. "With Android, Cisco could go in at a low level and change how the device is managed so a company can manage everything for the user."

Without an existing investment in Cisco phone and communication systems, though, many company may see little appeal. Puorro says that Cisco continues to develop and release iPad and iPhone apps for its collaboration software, a strategy Dulaney says is wise. "Of course Cisco will also aggressively support iPads," he says, "I think they're gonna see how the Cius does, and if it doesn't work out, work hard to support the most popular tablets."

Friday, July 1, 2011

WiFi 'napping' doubles phone battery life


A Duke University graduate student has found a way to double the battery life of mobile devices – such as smartphones or laptop computers – by making changes to WiFi technology.
This is Justin Manweiler from Duke University.
Credit: Justin Manweiler

WiFi is a popular wireless technology that helps users download information from the Internet. Such downloads, including pictures, music and video streaming, can be a major drain of battery.

The energy drain is especially severe in the presence of other WiFi devices in the neighborhood. In such cases, each device has to "stay awake" before it gets its turn to download a small piece of the desired information. This means that the battery drainage in downloading a movie in Manhattan is far higher than downloading the same movie in a farmhouse in the Midwest, the researchers said.

The Duke-developed software eliminates this problem by allowing mobile devices to sleep while a neighboring device is downloading information. This not only saves energy for the sleeping device, but also for competing devices as well.

The new system has been termed SleepWell by Justin Manweiler, a graduate student in computer science under the direction of Romit Roy Choudhury, assistant professor of electrical and computer engineering at Duke's Pratt School of Engineering. The SleepWell system was presented at the ninth Association for Computing Machinery's International Conference on Mobile Systems, Applications and Services (MobiSys), being held in Washington, D.C.

Manweiler described the system by analogy: "Big cities face heavy rush hours as workers come and leave their jobs at similar times. If work schedules were more flexible, different companies could stagger their office hours to reduce the rush. With less of a rush, there would be more free time for all, and yet, the total number of working hours would remain the same."



"The same is true of mobile devices trying to access the Internet at the same time," Manweiler said. "The SleepWell-enabled WiFi access points can stagger their activity cycles to minimally overlap with others, ultimately resulting in promising energy gains with negligible loss of performance."

With cloud computing on the horizon, mobile devices will need to access the Internet more frequently -- however, such frequent access could be severely constrained by the energy toll that WiFi takes on the device's battery life, according to Roy Choudhury.

"Energy is certainly a key problem for the future of mobile devices, such as iPhones, iPads and Android smartphones," Roy Choudhury said. "The SleepWell system can certainly be an important upgrade to WiFi technology, especially in the light of increasing WiFi density."

Manweiler said that "the testing we conducted across a number of device types and situations gives us confidence that SleepWell is a viable approach for the near future."
Provided by Duke University

Tuesday, June 28, 2011

Facebook May Mobilize on Web Apps


Developers are abuzz with a rumored project that could provide a new platform for mobile apps.

Rumor has it that Facebook is trying to sidestep Apple's App Store and Google's Android Market with a neat technical trick: a Web-based platform for apps.

Facebook has yet to confirm the existence of the effort, allegedly code-named "Project Spartan." But if the rumor is true, the effort could threaten Apple and Google's dominance in mobile software, and give a boost to Web applications over native apps, by appealing to Facebook's huge and captive user base and by leveraging the social connections between users.

Facebook already lets developers build apps to run on top of its platform, and they've created thousands of games, utilities, and even business apps. But these are designed for the desktop, not the mobile or tablet platforms that are growing rapidly in popularity.

Mobile Web apps built on top of Facebook, and that run entirely in the browser, using widely supported technologies like HTML5, JavaScript, and CSS, would free developers from the need to create several version of their software for different mobile platforms. Developers could also use Facebook Credits, which the company is hoping to expand into a universal micropayment system accessible across the Web. Facebook takes the same cut from Credits that Apple does from its App Store: 30 percent.

"If the rumors are true, it means that Facebook is planning to use Web technologies to create a whole new app ecosystem for iOS-based and other mobile devices," says Ron Perry, chief technology officer at Worklight, a company that provides tools for building mobile applications.

Facebook could also increase its influence in the mobile market by creating a platform for apps that Apple would never approve, or giving developers more favorable terms than the current 30 percent cut.

All this might make it seem inevitable that Facebook would undertake something like Project Spartan. But to succeed at creating an alternate Web-only app ecosystem and payment platform that spans many devices, it will need to overcome a number of challenges.



For one thing, Apple is now in the position that Microsoft was in 20 years ago: it controls the software on its devices and has little incentive to make the environment more hospitable to competing models of application delivery. Indeed, in March, some developers accused Apple of crippling native apps that use Web content on the iPhone and iPad by saddling them with a JavaScript engine only half as fast as the Nitro engine that runs in mobile Safari, the default browser on Apple's mobile devices. It's debatable whether or not this bug was intentional.

Apple may ultimately be forced offer better support for applications that reside in the browser. "At the end of the day, for platforms to be successful, they have to give consumers what they want," says David Koretz, CEO of the Web-application security firm Mykonos Software. He argues that consumer demand will push mobile companies to offer the best Web experience possible.

Another, potentially more significant issue hanging over the future of mobile apps is the fact that HTML is poorly suited to the kind of app that has so far made the most money for both Facebook and Apple: games. Long-time Apple observer John Gruber sees HTML's limitations as fundamental to the difference between Apple's App Store and Facebook's rumored effort.

"Don't think of what Facebook is reportedly attempting as a would-be rival to the iOS App Store. Think of it as the mobile equivalent of Flash games for Macs and PCs. Obviously, there would be some competitive overlap, but there's a fundamental difference in scope and quality," Gruber said in an e-mail.

Another truth that Facebook needs to confront is that previous efforts to create Web-based apps have fizzled. Apple, in fact, maintains a directory of Web apps—a holdover from the days before developers were able to create native apps for the iPhone. But it has little incentive to promote these. OpenAppMkt, another repository of mobile Web apps, has failed to make much of a dent in the App Store or Android Market. Google itself sells Web apps, through the Chrome Web Store, but these are primarily for desktops. A significant barrier each one of these efforts has run into is their lack of an easy-to-use payment system. Apple already has 200 million iTunes accounts, allowing its users a level of impulse purchasing unheard of in the history of commerce.

Whatever challenges Facebook faces, if the most-visited website in the United States does start pushing mobile Web apps, this could be huge for the penetration of applications based on open Web-browser standards. "Facebook's reach can definitely bring Web apps to the limelight and make this an attractive option for app publishers," says Worklight's Perry.


Tuesday, June 21, 2011

British Library, Google in deal to digitize books



A treatise on a stuffed hippopotamus, an 18th-century English primer for Danish sailors and a description of the first engine-driven submarine are among 250,000 books to be made available online in a deal between Google and the British Library.
People work on laptops in a reading room at the British
Library in London, Monday, June 20, 2011. A treatise on
a stuffed hippopotamus, an 18th-century English primer for
Danish sailors and a description of the first engine-driven
submarine are among 250,000 books to be made available
online in a deal between Google and the British Library.
The agreement, announced Monday, will let Internet
users read, search, download and copy thousands of
texts published between 1700 and 1870.
(AP Photo/Matt Dunham)

The agreement, announced Monday, will let Internet users read, search, download and copy thousands of texts published between 1700 and 1870.

It is a small step toward the library's goal of making the bulk of its 14 million books and 1 million periodicals available in digital form by 2020.

"So far we have only been able to digitize quite a small fraction of the global collection," said the library's chief executive, Lynne Brindley. "There is a long way to go."



The deal with Google, which will see 40 million pages digitized over the next three years, will offer online researchers a selection of rarely seen works from an era of social, political, scientific and technological change that took in the Enlightenment, the Industrial Revolution and the American war of independence.

The books range from Georges Louis Leclerc's "Natural History of the Hippopotamus, or River-Horse" - which includes a description of a stuffed animal owned by the Prince of Orange - to the 1858 work "A Scheme for Underwater Seafaring," describing the first combustion engine-driven submarine.

The books are more than scholarly curiosities. British Library curator Kristian Jensen said an 18th-century guide to English for Danish mariners shows "how English began to emerge from being the language spoken by people over there on that island" to become the world's dominant tongue.

Google will pay to digitize the books, which are no longer covered by copyright restrictions. They will be available on the British Library and Google Books websites.

Peter Barron, Google's European spokesman, declined to say how much the project would cost, beyond describing it as "a substantial sum."

Google has digitized 13 million books in similar deals with more than 40 libraries around the world. But its plan to put millions of copyrighted titles online has been opposed by the publishing industry and is the subject of a legal battle in the United States.

Barron said the company's goal "is to make as wide a range of items as possible" available online.

"Having richer content means people around the world are searching more for it, and that is good for our business," he said.

Last year, the British Library announced plans to digitize up to 40 million pages of newspapers dating back three-and-a-half centuries, and it recently made thousands of 19th-century books digitized in a deal with Microsoft available as an app for iPhone and iPad devices.

More information:
Google Books: http://books.google.com/ British Library: http://www.bl.uk/

Friday, June 3, 2011

How Friends Influence Gadget Adoption



Buying habits revealed via social networks could predict whether a product takes off or not.

Gadget Adoption


When your friend shows up with the latest "must-have" product, it's more likely you'll buy the same product. By exploiting this phenomenon—and harnessing the information available through online social networks—marketers hope to better target products to would-be buyers.

In work presented this week at the Interdisciplinary Workshop on Information and Decision in Social Networks, researchers from the Norwegian telecom provider Telenor showed how important friend connections can be to the adoption of a product. Watching how adoption spreads within social networks could help predict whether a new product will become a viral smash, they say. The researchers looked at patterns of adoption for Apple's iPhone and iPad, as well as for the far-less-successful Doro mobile handset.

"Social networks matter when purchase decisions are made," says Pål Sundsøy, a project manager in the advanced analytics and business intelligence group at Telenor. In particular, he says, people have a higher chance of adopting a product that their friends have bought. Likewise, when people abandon a product—for example, by switching between cell-phone networks—they are more likely to jump ship if their friends do so first.

To measure the social characteristics of product adoption, the researchers made use of anonymized data from Telenor's network. That data revealed how users communicate and what mobile devices they use.

Most strikingly, the researchers found what Sundsøy termed a "tribe of Apple." People who used Apple products tended to be connected to each other. After the launch of the iPhone, a heavily connected cluster of users formed relatively quickly. That central cluster grew larger over time. For the iPad, the researchers observed a similar structure forming even faster (their graphs tracked iPad adoption by the month, instead of the quarterly measures they used for the iPhone). They found that social connections predicted whether users were likely to own Apple products. iPhone users had twice as many connections—meaning they had communicated with one another by voice, text message, or email—than would be expected by chance. The researchers also studied the much less successful Doro. The handset is marketed as a device designed primarily for phone calls rather than data-related activities. Doro users tended to be connected to few other Doro users, and there was no central cluster. Sundsøy argues that this structure suggests that the device will likely never gain momentum.

But social connections aren't everything. In another talk given at the same workshop, Nicholas Christakis, a Harvard University social scientist and expert on networks, said that the qualities of whatever is spreading through a network matters a great deal. For example, some germs are more contagious than others, and will spread faster through a network. Similarly, he said, some ideas are "stickier" than others, and take hold better. So product adoption will also spread according to the quality of the product, and not just the number of friends who already own it.

Even taking variations in product quality into account, however, it will still be useful to look at patterns of adoption in social networks, the Telenor researchers say.

"The social variables have high predictive power," says Sundsøy. "Those who communicate together tend to adopt together." According to his group's work, one key factor is the size of the connected cluster that forms around a product. If a large, heavily connected group begins to form, he says, there's a good chance that a product will take off.
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Tuesday, May 31, 2011

Sony Sets Its Sights on Augmented Reality The future of mobile gaming will merge the virtual and real worlds.



Sony has demonstrated a new augmented reality system called Smart AR that can be built into the company's future gaming devices.
Credit: Sony Corporation

Augmented reality involves mapping virtual objects onto a view of the real world, usually as seen through the screen of a smart phone. The technology has so far been used to create a handful of dazzling smart-phone apps, but has yet to take off in a big way. However, many believe that mobile gaming could prove to be an ideal platform for the technology. With Smart AR, certain real-world objects could become part of a game when viewed through a device such as the PlayStation Portable. This could allow game characters to appear on a tabletop, perhaps, or to respond to the movement of real objects.

Unlike many augmented reality systems, Smart AR does not use satellite tracking or special markers to figure out where to overlay a virtual object. Instead, it uses object recognition. This means it works where GPS signals are poor or nonexistent, for example, indoors. The markerless system is more difficult to pull off, but it allows many more everyday objects to be used.

"Prototypes of Sony Computer Entertainment's next-generation of portable entertainment systems will be integrated with this technology," says Takayuki Yoshigahara, deputy general manager of Sony's Intelligent Systems Research Laboratory in Tokyo. "SCE is also considering adopting this technology for its software development kit in the future." This would allow games developers to add augmented reality features in the games made for Sony consoles.

Sony has dabbled with the technology before, using two-dimensional barcodes known as CyberCodes as markers for tracking objects.

According to Yoshigahara, Smart AR identifies objects using an approach known as local feature extraction, which means it tries to identify salient parts of the object within the image. The system also tracks the object's movement, and works out its orientation. This is necessary in order to know how the virtual data should be positioned in relation to the object.

Smart AR also builds a rough 3-D map of a room. This is achieved by measuring disparities between different snapshots taken from slightly different perspectives as the camera moves. This allows virtual objects to interact with the environment.

Tobias Hollerer, an associate professor at the University of California, Santa Barbara, says Sony's technology combines several areas of research. "If they do anything new, it is in tracking the entire room," he says.

Edward Rostens, a lecturer at the University of Cambridge and cocreator of an augmented reality system for the iPhone, called Popcode, says getting several different techniques to work together using the limited processing power of a handheld device would be impressive.

Thursday, May 5, 2011

Revolutionary New Paper Computer Shows Flexible Future for Smartphones and Tablets



The world's first interactive paper computer is set to revolutionize the world of interactive computing.
Professor Roel Vertegaal's PaperPhone is best described as a flexible iPhone. (Credit: Image courtesy of Queen's University)

"This is the future. Everything is going to look and feel like this within five years," says creator Roel Vertegaal, the director of Queen's University Human Media Lab. "This computer looks, feels and operates like a small sheet of interactive paper. You interact with it by bending it into a cell phone, flipping the corner to turn pages, or writing on it with a pen."

The smartphone prototype, called PaperPhone is best described as a flexible iPhone -- it does everything a smartphone does, like store books, play music or make phone calls. But its display consists of a 9.5 cm diagonal thin film flexible E Ink display. The flexible form of the display makes it much more portable that any current mobile computer: it will shape with your pocket.

Dr. Vertegaal will unveil his paper computer on May 10 at 2 pm at the Association of Computing Machinery's CHI 2011 (Computer Human Interaction) conference in Vancouver -- the premier international conference of Human-Computer Interaction.

Being able to store and interact with documents on larger versions of these light, flexible computers means offices will no longer require paper or printers.

"The paperless office is here. Everything can be stored digitally and you can place these computers on top of each other just like a stack of paper, or throw them around the desk" says Dr. Vertegaal.

The invention heralds a new generation of computers that are super lightweight, thin-film and flexible. They use no power when nobody is interacting with them. When users are reading, they don't feel like they're holding a sheet of glass or metal.

An article on a study of interactive use of bending with flexible thinfilm computers is to be published at the conference in Vancouver, where the group is also demonstrating a thinfilm wristband computer called Snaplet.

The development team included researchers Byron Lahey and Win Burleson of the Motivational Environments Research Group at Arizona State University (ASU), Audrey Girouard and Aneesh Tarun from the Human Media Lab at Queen's University, Jann Kaminski and Nick Colaneri, director of ASU's Flexible Display Center, and Seth Bishop and Michael McCreary, the VP R&D of E Ink Corporation.

For more information, articles, videos, and high resolution photos, visit http://www.humanmedialab.org/paperphone/ and http://www.youtube.com/watch?v=Rl-qygUEE2c

Tuesday, October 12, 2010

Now Your App Knows Where You Are Geolocation analytics could help companies to improve their apps--and make more money from them.


A new platform for analyzing when, where, and how smart-phone apps are used will soon be available to thousands of mobile developers.
Pizza tracking: A spike in coupon redemption at PizzaLand at lunchtime is revealed in San Francisco by FortiusOne and Appcelerator's Titanium+Geo package.
Credit: Appcelterator

Appcelerator--a software development platform that lets Web programmers create apps that run natively on both iPhone and Android devices--will release the new mobile analytics platform within the next three months. The platform was developed by Appcelerator and FortiusOne, a company that specializes in visualizing location information.

Accurate geolocation analytics data will help companies improve their software and make money from location-targeted advertising.

Appcelerator has around 72,000 users, including developers from large businesses such as NBC and Budweiser. It has proven popular because it lets developers create apps without requiring the technical expertise needed to build them from scratch.

The new platform, called Titanium+Geo, lets Appcelerator developers see what users are doing, and where they're doing it, as long as geolocation functionality has been built into an app. For example, the startup Scoutmob, which offers location-specific deals to subscribers through an Appcelerator app, could see when and where users open the app, and how they respond.

Titanium+Geo collects data every time a user opens an app. A developer can instruct the app to report various events to a remote server, such as when a user views an advertisement--or a coupon for a discount--or when the user responds to the ad or redeems the coupon.

"Most of what we see currently in terms of smart-phone advertising, not much of it is geotargeted," says Sean Gorman, president and founder of FortiusOne. Without the metrics to determine how well mobile, geotargeted ads work, there simply hasn't been a business case for using them, he adds.

"We're used to Google Analytics for Web pages, but until now, we haven't had that for how apps are used," says Gorman.

SimpleGeo, another startup company that offers geolocation tools for developers, has announced that it is working on a similar analytics platform.

Adding spatial data to the information that apps already gather will allow for new forms of data mining. Gorman says that researchers have, for example, been able to determine with near-perfect accuracy who the friends of a given smart-phone user are simply by analyzing data about where and when that user comes into contact with others.

The approach could also allow for much more targeted advertising. "When you understand when and where [a person is when they use an app], then you understand context," says Scott Schwarzhoff, vice president of marketing at Appcelerator. "If it's 7 a.m. and a person is in the marina district, then you understand where that person lives."

Targeted ads would allow developers to command higher rates for advertising. But this kind of data could also reveal things that users might rather keep secret.

"It's like Minority Report," says Byung-Gon Chun, a researcher at Intel Labs Berkeley. "As Tom Cruise walks by the billboards, they change their advertisements based on his presence."

Chun, who studies mobile security, recently coauthored a paper showing that many Android apps share user data, including location information, without making it clear to users.

Chun and colleagues Jaeyeon Jung at Intel and William Enck at Penn State University developed a program called TaintDroid that examines the data that Android apps pass to the Web. Half of the apps they analyzed transmitted geolocation data, most without asking for permission or making it explicit in their documentation that they would.

"Even if this disclosure is in the [end user license agreement], it's hard for users to figure out what kind of information the app is actually sending," says Chun.

Sunday, October 10, 2010

See the Future with a Search A Web startup demos a "predictive" search engine.


A startup called Recorded Future has developed a tool that scrapes real-time data from the Internet to find hints of what will happen in the future. The company's search tool spits out results on a timeline that stretches into the future as well as the past.
Eye candy: This visualization shows the connections between different places, companies, and people, following a search using Recorded Future.
Credit: Recorded Future

The 18-month-old company gained attention earlier this year after receiving money from the venture capital arms of both Google and the CIA. Now the company has offered a glimpse of how its technology works.

Conventional search engines like Google use links to rank and connect different Web pages. Recorded Future's software goes a level deeper by analyzing the content of pages to track the "invisible" connections between people, places, and events described online.

"That makes it possible for me to look for specific patterns, like product releases expected from Apple in the near future, or to identify when a company plans to invest or expand into India," says Christopher Ahlberg, founder of the Boston-based firm.

A search for information about drug company Merck, for example, generates a timeline showing not only recent news on earnings but also when various drug trials registered with the website clinicaltrials.gov will end in coming years. Another search revealed when various news outlets predict that Facebook will make its initial public offering.

That is done using a constantly updated index of what Ahlberg calls "streaming data," including news articles, filings with government regulators, Twitter updates, and transcripts from earnings calls or political and economic speeches. Recorded Future uses linguistic algorithms to identify specific types of events, such as product releases, mergers, or natural disasters, the date when those events will happen, and related entities such as people, companies, and countries. The tool can also track the sentiment of news coverage about companies, classifying it as either good or bad.

Recorded Future's customer base is currently "sub-100," says Ahlberg. It includes a mix of financial firms, government analysts, and media analysts, who pay a monthly fee to access the online tools. "Government analysts are interested in tracking people and places, while financial services may want to reveal events coming up around particular companies," says Ahlberg.

As well as providing a slick online interface to perform searches that spit out timelines showing the results (see video), Recorded Future offers free e-mail newsletters that tip users off to predictions in specific areas. It also makes it possible for customers to write software that draws on the tool's data and analysis through application programming interfaces, or APIS.

In time, this may lead to the development of apps targeted at consumers, says Ahlberg. "If I'm about to buy an iPhone, I might want to know if I am going to look stupid because they'll launch a new one next week, or how long it usually takes for competitors to launch competing products after a new Apple launch." Financial analysts are already using the company's APIs to overlay or even integrate Recorded Future's data into their own models, he says.
Future gazing: A Recorded Future timeline shows the dates of future product launches, as well as previous releases.
Credit: Recorded Future

"We have proven out that our data can make strong predictions," says Ahlberg, citing studies that compared Recorded Future's output with changes in the volume of activity around particular financial stocks. "We found that our momentum metric, which indicates the strength of activity around an event or entity, and our future events correlate with the volume of market activity," says Ahlberg.

His company's tools can also be used to work out which sources of information give the best clues as to future events. A recent analysis showed that the posts on one of the Financial Times's blogs were better than other news sources at predicting the performance of companies on the S&P 500 share index. Negative posts about a company correlated with below-market performance a week later, while positive ones correlated with above-market performance.

"What they're really doing here is identifying and collating statements that have been made about the future," says Steven Skiena at the State University of New York at Stony Brook. Skiena developed similar technology used by another startup, General Sentiment, to mine material from news and blogs. "An analyst can use those to inform their own predictions, less risky than Recorded Future actually making predictions themselves."

Various tools are capable of extracting events, people, and companies from text, but aligning that information in time is a trickier task, says Panagiotis Ipeirotis, at New York University's Leonard Stern School of Business. Ipeirotis researches how economically important data can be mined from online news sources and social media. "Analysis of sequences of events is very interesting, and underexploited in the research literature," he says. "Even getting decently timed data of news articles in order to properly generate event sequences is a hard problem."

This focus on the timeline sets Recorded Future apart from other firms trying to gain insights by mining news and other data, says Ipeirotis. "I'm curious to see when other text analytics firms will jump into the trend."

Recorded Future is about to expand its service to cover Arabic and Chinese sources. Making its indexes bigger is a major priority. "I'd like to be able to get in front of every piece of streaming data on the planet," says Ahlberg.

As the databases covered by Recorded Future, General Sentiment, and others grow, more powerful types of analysis will become possible, says Skiena. "I'm currently working with social scientists on models to predict what the probability is that a person that gets few mentions today suddenly becomes very famous in the future, by looking back at years of past data," he says.

Thursday, August 5, 2010

Atom's Electrons Seen Moving in Real Time


An international team of scientists led by groups from the Max Planck Institute of Quantum Optics (MPQ) in Garching, Germany, and from the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley has used ultrashort flashes of laser light to directly observe the movement of an atom's outer electrons for the first time.
Image
In krypton’s single ionization state, quantum oscillations in the valence shell cycled in a little over six femtoseconds. Attosecond pulses probed the details (black dots), filling the gap in the outer orbital with an electron from an inner orbital, and sensing the changing degrees of coherence between the two quantum states thus formed (below). (Credit: Image courtesy of DOE/Lawrence Berkeley National Laboratory)

Through a process called attosecond absorption spectroscopy, researchers were able to time the oscillations between simultaneously produced quantum states of valence electrons with great precision. These oscillations drive electron motion.

"With a simple system of krypton atoms, we demonstrated, for the first time, that we can measure transient absorption dynamics with attosecond pulses," says Stephen Leone of Berkeley Lab's Chemical Sciences Division, who is also a professor of chemistry and physics at UC Berkeley. "This revealed details of a type of electronic motion -- coherent superposition -- that can control properties in many systems."

Leone cites recent work by the Graham Fleming group at Berkeley on the crucial role of coherent dynamics in photosynthesis as an example of its importance, noting that "the method developed by our team for exploring coherent dynamics has never before been available to researchers. It's truly general and can be applied to attosecond electronic dynamics problems in the physics and chemistry of liquids, solids, biological systems, everything."

The team's demonstration of attosecond absorption spectroscopy began by first ionizing krypton atoms, removing one or more outer valence electrons with pulses of near-infrared laser light that were typically measured on timescales of a few femtoseconds (a femtosecond is 10-15 second, a quadrillionth of a second). Then, with far shorter pulses of extreme ultraviolet light on the 100-attosecond timescale (an attosecond is 10-18 second, a quintillionth of a second), they were able to precisely measure the effects on the valence electron orbitals.

The results of the pioneering measurements performed at MPQ by the Leone and Krausz groups and their colleagues are reported in the August 5 issue of the journal Nature.

Parsing the fine points of valence electron motion

Valence electrons control how atoms bond with other atoms to form molecules or crystal structures, and how these bonds break and reform during chemical reactions. Changes in molecular structures occur on the scale of many femtoseconds and have often been observed with femtosecond spectroscopy, in which both Leone and Krausz are pioneers.

Zhi-Heng Loh of Leone's group at Berkeley Lab and UC Berkeley worked with Eleftherios Goulielmakis of Krausz's group to perform the experiments at MPQ. By firing a femtosecond pulse of infrared laser light through a chamber filled with krypton gas, atoms in the path of the beam were ionized by the loss of from one to three valence electrons from their outermost shells.

The experimenters separately generated extreme-ultraviolet attosecond pulses (using the technique called "high harmonic generation") and sent the beam of attosecond probe pulses through the krypton gas on the same path as the near-infrared pump pulses.

By varying the time delay between the pump pulse and the probe pulse, the researchers found that subsequent states of increasing ionization were being produced at regular intervals, which turned out to be approximately equal to the time for a half cycle of the pump pulse. (The pulse is only a few cycles long; the time from crest to crest is a full cycle, and from crest to trough is a half cycle.)

"The femtosecond pulse produces a strong electromagnetic field, and ionization takes place with every half cycle of the pulse," Leone says. "Therefore little bursts of ions are coming out every half cycle."

Although expected from theory, these isolated bursts were not resolved in the experiment. The attosecond pulses, however, could precisely measure the production of the ionization, because ionization -- the removal of one or more electrons -- leaves gaps or "holes," unfilled orbitals that the ultrashort pulses can probe.

The attosecond pulses do so by exciting electrons from lower energy orbitals to fill the gap in krypton's outermost orbital -- a direct result of the absorption of the transient attosecond pulses by the atoms. After the "long" femtosecond pump pulse liberates an electron from outermost orbital (designated 4p), the short probe pulse boosts an electron from an inner orbital (designated 3d), leaving behind a hole in that orbital while sensing the dynamics of the outermost orbital.

In singly charged krypton ions, two electronic states are formed. A wave-packet of electronic motion is observed between these two states, indicating that the ionization process forms the two states in what's known as quantum coherence.

Says Leone, "There is a continual 'orbital flopping' between the two states, which interfere with each other. A high degree of interference is called coherence." Thus when the attosecond probe pulse clocks the outer valence orbitals, it is really clocking the high degree of coherence in the orbital motion caused by ionization.

Indispensable attosecond pulses

"When the bursts of ions are made quickly enough, with just a few cycles of the ionization pulse, we observe a high degree of coherence," Leone says. "Theoretically, however, with longer ionization pulses the production of the ions gets out of phase with the period of the electron wave-packet motion, as our work showed."

So after just a few cycles of the pump pulse, the coherence is washed out. Thus, says Leone, "Without very short, attosecond-scale probe pulses, we could not have measured the degree of coherence that resulted from ionization."

The physical demonstration of attosecond transient absorption by the combined efforts of the Leone and Krausz groups and their colleagues will, in Leone's words, "allow us to unravel processes within and among atoms, molecules, and crystals on the electronic timescale" -- processes that previously could only be hinted at with studies on the comparatively languorous femtosecond timescale.

The study -- by Eleftherios Goulielmakis, Zhi-Heng Loh, Adrian Wirth, Robin Santra, Nina Rohringer, Vladislav Yakovlev, Sergey Zherebtsov, Thomas Pfeifer, Abdallah Azzeer, Matthias Kling, Stephen Leone, and Ferenc Krausz -- appears in the Aug. 5, 2010 issue of the journal Nature. This work was supported by the Max Planck Society, King Saud University, and the Munich Center for Advanced Photonics. Stephen Leone's group is supported by the Air Force Office of Scientific Research, the National Science Foundation, and U.S. Department of Energy's Office of Science.
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Tuesday, February 23, 2010

Microsoft Threw Out the Playbook for Windows Phone 7


One of the biggest stories of the Mobile World Conference was the unveiling--finally--of Windows Mobile 7, rebranded as Windows Phone 7. The story within the story is how Microsoft abandoned the foundation established with the waning Windows Mobile platform, went back to the drawing board, and started from scratch for the latest incarnation of its mobile operating system.
The result is a completely new mobile platform from Microsoft which, at least from initial feedback and reviews, seems to be worthy of further consideration once Windows Phone 7 devices start hitting the streets.

Given the delays experienced by Microsoft in developing Windows Phone 7, expectations were high. Any minor, incremental improvement on the existing platform would have been virtually guaranteed to fail.

Microsoft's approach with Windows Phone 7 seems to borrow some from the Apple business model that has proven so successful with the iPhone. Like Google, with the Nexus One, Microsoft is reining in oversight of the hardware for Windows Phone 7 devices.

Microsoft has been accused of stealing a variety of design elements and features from Apple over the decades, but one thing it has steered clear of is emulating Apple's strict control of the end-to-end user experience. However, with Windows Phone 7, Microsoft seems to be embracing that philosophy to some degree.

Traditionally, the best Windows Mobile phones have been the devices built by HTC, and the reason they have been the best is because HTC took the Windows Mobile platform as a foundation, and branded it with its own unique design and interface elements. With Windows Phone 7, Microsoft has spelled out strict hardware and software design guidelines that will restrict such unique development by HTC, but hopefully deliver a more consistent experience for Windows Phone 7 users regardless of manufacturer.

By exerting more control over the hardware and software specifications, Microsoft can ensure that apps developed for Windows Phone 7 will not only work, but will work the same way, across all Windows Phone 7 devices. That level of consistency across Windows Phone 7 devices will help to increase adoption and improve perception of the Windows Phone 7 platform.

What Google seems to have learned from Apple--the same lesson that Microsoft appears to be grasping as well--is that maintaining control of the end-to-end user experience creates a more stable environment for developers to work with, and enables it (Google, Microsoft, or Apple as the case may be) to maximize the potential of the operating system without being handicapped by variations in capabilities from one handset to the next.

Of course, one of the things customers have come to expect from Microsoft is a more open and flexible platform than what Apple offers. Users want the ability to configure and customize their Windows devices--whether PC's or smartphones--and typically abhor the sort of "dummy-proof-our-way-or-the-highway" approach taken by Apple.

IT administrators enjoy the increased flexibility and capabilities of a more open platform like Windows Phone 7 or Android. One of the issues standing in the way of Apple iPhone adoption in the enterprise is the lack of control provided for IT administrators to be able to configure and manage the devices the way they would like to.

Businesses stand to benefit from the more consistent user experience of Windows Phone 7 as well, though. Rather than having to test and develop for each individual Windows Mobile handset in use, any configuration settings or custom apps will be able to function regardless of the Windows Phone 7 devices in use.

Windows Phone 7 appears to be a significant departure from previous Windows Mobile operating systems. At first glance it seems the Microsoft is heading in the right direction and could recapture some of the lost market share of the waning Windows Mobile platform. We'll have to wait until the Windows Phone 7 devices hit the streets to see how it really plays out.
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