Category Archives: Mobile

A Smart Phone that Knows You’re Angry

    Researchers at Samsung have developed a smart phone that can detect people’s emotions. Rather than relying on specialized sensors or cameras, the phone infers a user’s emotional state based on how he’s using the phone.

For example, it monitors certain inputs, such as the speed at which a user types, how often the “backspace” or “special symbol” buttons are pressed, and how much the device shakes. These measures let the phone postulate whether the user is happy, sad, surprised, fearful, angry, or disgusted, says Hosub Lee, a researcher with Samsung Electronics and the Samsung Advanced Institute of Technology’s Intelligence Group, in South Korea. Lee led the work on the new system. He says that such inputs may seem to have little to do with emotions, but there are subtle correlations between these behaviors and one’s mental state, which the software’s machine-learning algorithms can detect with an accuracy of 67.5 percent.

The prototype system, to be presented in Las Vegas next week at the Consumer Communications and Networking Conference, is designed to work as part of a Twitter client on an Android-based Samsung Galaxy S II. It enables people in a social network to view symbols alongside tweets that indicate that person’s emotional state. But there are many more potential applications, says Lee. The system could trigger different ringtones on a phone to convey the caller’s emotional state or cheer up someone who’s feeling low. “The smart phone might show a funny cartoon to make the user feel better,” he says.

Further down the line, this sort of emotion detection is likely to have a broader appeal, says Lee. “Emotion recognition technology will be an entry point for elaborate context-aware systems for future consumer electronics devices or services,” he says. “If we know the emotion of each user, we can provide more personalized services.”

Samsung’s system has to be trained to work with each individual user. During this stage, whenever the user tweets something, the system records a number of easily obtained variables, including actions that might reflect the user’s emotional state, as well as contextual cues, such as the weather or lighting conditions, that can affect mood, says Lee. The subject also records his or her emotion at the time of each tweet. This is all fed into a type of probabilistic machine-learning algorithm known as a Bayesian network, which analyzes the data to identify correlations between different emotions and the user’s behavior and context.

The accuracy is still pretty low, says Lee, but then the technology is still at a very early experimental stage, and has only been tested using inputs from a single user. Samsung won’t say whether it plans to commercialize this technology, but Lee says that with more training data, the process can be greatly improved. “Through this, we will be able to discover new features related to emotional states of users or ways to predict other affective phenomena like mood, personality, or attitude of users,” he says.

Reading emotion indirectly through normal cell phone use and context is a novel approach, and, despite the low accuracy, one worth pursuing, says Rosalind Picard, founder and director of MIT’s Affective Computing Research Group, and cofounder of Affectiva, which last year launched a commercial product to detect human emotions. “There is a huge growing market for technology that can help businesses show higher respect for customer feelings,” she says. “Recognizing when the customer is interested or bored, stressed, confused, or delighted is a vital first step for treating customers with respect,” she says.

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Posted by on January 19, 2012 in Mobile


Two new Blackberry Playbooks in 2012

Although the flagship Playbook tablet has been a commercial flop, RIM wants to keep the brand alive.

Leaked internal documents from Research in Motion, reportedly received by the, show that the new Playbook tablets is the company’s priority right now. Two new models will launch before the new Blackberry 10 operating system.

A new 7-inch model will apparently be heading out in April, while an iPad-size 10-inch version will be available by the end of the year. The current Playbook model has a 7-inch display.

Among the enhancements with the upgraded 7-inch device is the addition of mobile network connectivity. Specifically, it will be able to connect to an HSPA+ network, which is what T-Mobile uses for its ‘4G’ network. AT&T also has an HSPA+ infrastructure but has been upgrading its 4G system to the much more powerful LTE (Long Term Evolution) standard.

So the new Playbook could be compatible with either T-Mobile or AT&T; our money would be on AT&T, one of RIM’s strongest supporters.

Meanwhile, it seems that the new Blackberry phone operating system could be coming out even later than expected. Originally due out early this year, Blackberry 10 was recently pushed back to the second half of 2012, and now it seems the new platform won’t be available until September at the earliest.

These are all moves that many believe are only pronlonging the inevitable. The Blackberry brand is dying and incremental hardware and software updates cannot really bring it back to life at this point.

In the end, a much more likely scenario will be along the lines of Nokia, which used to have its own proprietary OS but is now making phones powered by Microsoft’s Windows Phone platform.

But we’ll see if RIM can somehow manage to stay afloat.

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Posted by on January 19, 2012 in Mobile