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Showing posts with label stanford. Show all posts
Showing posts with label stanford. Show all posts

Oct 19, 2012

Want Proof That Market Fit Is Everything? Test Your App In The Slums Of Sao Paulo

For the Stanford-educated founders of Emprego Ligado, creating a successful app in Brazil required dismantling every assumption about the target audience.

Connect a smart team with a huge market, and the results can be explosive growth. But fitting the two together can mean months of validation and product testing--sometimes leading to results you'd never expect. “The temptation is to do it as easily as possible--put up a solution and get Google Adwords out there,” says Derek Fears, the American co-founder of Emprego Ligado, a job-search platform for Brazil's underclass. “It may be an elegant solution that makes sense to you, but isn't what people want or need.”

Dee, Fears, and Rosenbloom

Fears is talking about Sao Paulo's blue-collar labor market, which he and his co-founders believed could make leaps in efficiency if it were brought online. The problem: people here get jobs by word-of-mouth, so neither the job-seekers nor the jobs ever make it to the Web. Building a solution would take months of on-the-ground research like the kind ethnographer Tricia Wang does for Nokia or Microsoft.

Emprego Ligado, which translates to 'connected job,' launched in Sao Paulo this summer with the aim of connecting unskilled laborers to jobs close to home via SMS: workers text the system when they need a job, and they system texts back with jobs in the area that match their preferences. It sounds simple enough, but arriving at a working model required dismantling every assumption the founders had about their target market.

“The password field, when you’re signing up--I would assume most people would think this means they should create a password,” says Fears. “But watching people completing forms who've only ever signed up for email, that's not evident for them. So they'd assume it was asking for the password to their Hotmail account and they’d get confused.”

Ask someone working in a Sao Paulo supermarket where they live, and they’ll always give you an answer you’d never expect--up to 20 or 30 kilometers away, explains Jacob Rosenbloom, another co-founder. “There are cities within cities here, and while there are plenty of blue-collar jobs, the distribution of labor here isn’t exactly optimal.” Poor job-fit means the churn rate can be anywhere from 60% to 90% for customer service jobs, and workers are frequently late because of their commutes. Sao Paulo’s air quality suffers as much as its workers. “We knew this would be difficult, but if we can help the bottom of the pyramid, and there's a green element--that we really like,” says Fears.




He and his two co-founders, Rosenbloom and Nathan Dee, decided to tackle the problem with good old-fashioned sociological research, which they used as a basis for a simple working prototype. “We are an engineering team with degrees in statistics,” says Fears, “but really the key was following the MVP model.”

The first challenge was choosing a medium. Web penetration is growing in Brazil’s underclass thanks to cheap Android devices, but it's still not utilized consistently. Mobile penetration is over 100%, but when Fears and his team began doing market research, they found that 85% of the operational workforce here uses prepaid talk and text with no data. “Once we realized SMS was comfortable for everyone, then we hired developers in Chicago to build a prototype in Drupal,” says Fears. But connecting their site to an SMS gateway required partnerships with the mobile carriers here--not exactly something you can register for online.

They reached out for help to Marcelo Sales, the founder of an incubator in Rio de Janeiro who founded a mobile services company. "It's such a relationship based business culture--this is how things get done here. You take people out to lunch, you get it done. That's what's cool about the Brazilian guys in the technology ecosystem--they're so willing to help you. Everyone huddles together because there are no resources down here.”

With carrier partnerships in place, they needed to figure out how to match applicants with employers. They did intensive focus groups and one-on-one interviews with 40 human resources managers in the operational sector. After 30 days of ethnographic research inside employment agencies, they still needed to learn about the other half of their audience: the applicants. But Sao Paulo is huge: if you count the outlying suburbs it approaches 20 million. They contracted local market research companies, which pointed them to the Zona Norchi, or north zone, a populous area with high congestion. “We think of this as a flow problem. We had to do the calculus of what's the right neighborhood to start with--that's how we mapped out the market.”

The team passed out fliers asking people if they were looking for jobs, and used their limited Web framework to enter basic details about each worker’s CV. They spent time in metro stations, going to schools, talking to people about to graduate and enter the job force, and tried to find patterns in their search for employment. In all, they interviewed 1,000 blue collar workers, asking them dozens of questions about how they searched for jobs. “It was a qualitative on-the-ground search for information at a grassroots level,” says Fears, pictured at right. “We were focussed on being in the market, with constant user and customer feedback.”




Once they had a pool of test users, they began prototyping a site where employment agencies could list jobs, which would be sent out via text message to candidates that fit the profile. “We showed wireframes to HR managers at companies, and we watched how they hired. We did focus groups where we ask them zillions of questions to find out their pain points. We showed them slides about the concept for the product. It was constant feedback,” says Fears.

Once their prototype was working, they connected to an SMS gateway and started texting some of the applicants they had recruited as testers on the streets. They ran multiple versions of products simultaneously to see which one got the highest engagement. The job-seekers surprised them again.

“On the SMS side, one thing we did notice is that despite our attempts to automate everything for these users, a lot of time they were treating it as if there was a person on the other end answering their questions,” says Nathan Dee. “In the beginning we had to monitor SMS responses and constantly check for questions that users sent via SMS that our system wouldn't be able to automatically pick up. We realized we had to build in automatic responses that could identify patterns in messages and find trigger words.”

End users in HR companies also reacted unexpectedly to Emprego Ligado’s web-based dashboard for employers. “The terms and conditions were a big deal,” says Fears. “Most people in the United States click through and spend no time reading, but people here, for whatever reason--perhaps they're actually interested--would read it. They thought they were supposed to. They'd scroll down through pages and pages of legal mumbo-jumbo--I can only imagine what they thought about it.” It was costing time in the signup process and killing their conversion rates. “Now the terms are just a link that you have to click on, which opens up a different window. We had to make it just a little more seamless.”

The reaction from users on both sides of the labor market has been overwhelmingly positive, which helped Emprego Ligado land funding from venture heavyweights like 500Startups, Initial Capital, Rising Ventures and Fortify. Fears says the lesson is simple: “The only way to figure out if there's a product-market fit is to get local.”


Source : fastcompany[dot]com

Sep 5, 2012

Next Generation Security, Protecting the Cloud and Mobile Devices

A new security feature is being investigated by Stanford and Northwestern researchers where test subjects are unwittingly taught a series of keystrokes that can be uniquely identified when repeated during a laptop or mobile device login. 

Subjects are trained to make keystrokes that coincide with a moving visual cue, a disk falling past a line on the screen, for example. The pattern repeats, and the test subjects learn the pattern that can then be repeated more easily.

Researchers call it serial interception sequence learning, and it's kind of like playing a game or even learning to ride a bicycle. But the point is, scientists are using this type of training to see if the process could be used to improve login security over the popular but flawed password feature.

Password Alternate 

Passwords are handy because people understand how they work and they are inexpensive to set up. For companies like Dropbox, Skype, LinkedIn and Pinterest, there are obvious drawbacks as recent hacking attempts have made clear.

While enterprises like Bit9 are investing in IT security applications, people still have to enter in a password on the front end. Too often, those passwords are of the weak four digit variety or are shared with too many other people.

Researchers from the above study are investigating sequence learning because it would be hard to steal from someone. In other words, even if someone where to try and force you to give them your passcode, it would be hard to explain because it's not just a series of letters and numbers. 

The laptop or mobile device that had the sequence learning security feature installed would be able to tell if the person entering the keystrokes was the authorized person or not based on how precisely they duplicated the correct keystrokes. 

Next Generation Security Features

Sequence learning might not be a great password alternate for say, checking email, but other new security features are constantly being tested. Apple bought a company called AuthenTec Inc recently, and the technology purchased in that deal could yield a fingerprint security offering for iPhones and iPads. 

Furthermore, Rutgers university researchers are experimenting with a biometric security feature in the form of a ring that can transmit data through human skin. Facial recognition still holds promise despite the obvious drawback of simply holding up someone's picture to fool the camera.

One other possibily we are intrigued by is the as yet unreleased Leap sensor from LeapMotion. It looks to be the most sensitive motion control device yet availible, and the company is rumored to be working on security features based on gestures. One commentor on the website Gizmag even went so far as to claim he had been a flatmate of the Leap founders, and had seen the device up close. The rumor is the sensor can detect a person's pulse. Tell us in the comments if you use two step authentication for your Google accounts or if you use other programs to keep track of your passwords.

 
 

Source : cmswire[dot]com

Aug 28, 2012

Brain Games Company Lumosity Is Business Up Front, Experiment In The Back End

With its large database of human cognitive performance, Lumosity has become a small but significant force in the science surrounding its products.

As a neuroscience PhD candidate at Stanford, Michael Scanlon explored the effects of cognitive training through small-scale experiments on fish and rats. Now, seven years after dropping out to start a company that makes brain games, he can base his research on anonymized data from 25 million people.

Lumosity, the company Scanlon co-founded, makes games that promise to sharpen memory, focus attention, enhance creativity and improve attention. At least by Silicon-Valley terms, it’s been successful. The startup announced a $31.5 million investment from Discovery Communications last week, bringing its total amount of funding to $70 million. Its mobile app has reached the coveted No. 1 spot in the App Store, and its userbase has swelled to 25 million.

Studies about whether playing games like Lumosity's can indeed make people smarter have produced conflicting results. One study, for instance, found subjects who trained in cognitive tasks improved only at those specific tasks. Others, meanwhile, have showed improvement in fluid intelligence among those who played a brain game.

Lumosity's research branch, Lumos Labs, runs its own studies about how the games impact intelligence. But it also lends assessment tools and, in a few cases, its massive data set to independent researchers who are studying cognitive training. It's running an experiment and a company at the same time and has thus become a small but significant force in the science surrounding its products.

According to a paper the company published in the MENSA Research Journal, after 10 hours of training, subjects improved 10% in memory and 20% in divided attention. At the Society for Neuroscience’s annual meeting in October, it will present further research on the transfer of cognitive training to core underlying cognitive capacities and whether older adults need to train more frequently than younger adults to receive equivalent benefits.

With the exception of the research published in MENSA Research, however, none of its findings have been submitted for publication in a peer-reviewed journal.

“We know it’s possible,” Scanlon says. “We haven’t submitted enough times to know if we we have a high rate of success or a low rate of success.”

Regardless of whether Lumos Labs successfully publishes more studies, Scanlon acknowledges that research produced by organizations without revenue at stake are more likely to be trusted. Which is one reason Lumosity has helped supply about 100 independent researchers with brain games their subjects can play at home instead of at the lab.

Researchers from Stanford, the University of New South Wales and other schools have used Lumosisty brain games in published studies, many of which support Lumosisty's findings, and scientists at Harvard and UC Berkeley are among the 25 researchers that are currently incorporating the games into experiments.By default, testing their subjects on Lumosity games also helps cement the company’s position as the most data-equipped researcher in the space.

That's the business genius in Lumosity's research programs: As new understandings emerge about how cognitive training works and in what ways it is or is not effective, it's a good bet that Lumosity will be the first to arrive with updated games.

“The product is informing the science, which then turns back into the product,” Scanlon says. “Not all companies have the option of having their R&D and business models in such alignment.”


Source : fastcompany[dot]com