Luis von Ahn
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Luis von Ahn

The man who wants to translate the Web

Editor's note: Luis von Ahn ( @luisvonahn ) is the founder and former CEO of ReCAPTCHA, Inc., and an associate professor of computer science at Carnegie Mellon University. ReCAPTCHA, acquired by Google in 2009, is helping to digitize books, one word at a time, by having millions of ...

Luis Von Ahn: Creator Of Duolingo, reCAPTCHA

Read more posts in the series » Luis von Ahn, creator of Duolingo and a professor of computer science at Carnegie Mellon University. When he was 12 years old, Luis von Ahn came up with a plan to make gyms free. People exercising on machines can generate electricity, he figured...

Can You Crowdsource Without Even Knowing It? : NPR

Computer programmer Luis von Ahn wondered how else to use small contributions done by millions on the Internet for greater good. He put CAPTCHAs, those online puzzles to verify you're not a robot, to work by digitizing books and teaching foreign languages. Luis von Ahn builds ...

Duolingo brings free language courses to the iPad

The service currently has 5 million users across its web and iOS and Android smartphone versions, said CEO Luis von Ahn, and is among the most popular education apps. Duolingo for iPad takes advantage of the extra screen real estate for the language learning experience. Duolingo, a free ...

Duolingo raises $15M for language learning and crowdsourced translation

Duolingo, a language learning and crowdsourced translation platform from Recaptcha founder Luis von Ahn, has raised $15 million in Series B funding from New Enterprise Associates and Union Square Ventures. Computer scientist and entrepreneur Luis von Ahn has already put the crowd ...

BBC News The evolution of those annoying online security tests

It may sound like an ambitious plan but it's not the first time founder Luis von Ahn and his colleagues at Carnegie Mellon University have enlisted a global workforce to work for nothing. As a 22-year-old graduate student in 2000, von Ahn invented the Captcha - those distorted images of ...

Duolingo launching on Android; plans move to bigger office

Duolingo co-founders Luis von Ahn, left, and Severin Hacker. Click through to see what the Android app will look like. Regular readers of the blog know we have been following some of the region’s language-related technology and this week — 10 a.m. Wednesday to be exact — Duolingo is ...

Duolingo nabs $15M, led by VC firm NEA

Pittsburgh Business Times by Malia Spencer, Reporter Duolingo CEO Luis von Ahn. The company launched its product publicly in June and Monday closed on a $15 million series B round. Nearly one year after raising a $3.3 million series A round, and just about three months since the public ...

reCAPTCHA Founder’s Duolingo Teaches Languages While Crowdsourcing Translation

Luis von Ahn, the crowdsourcing pioneer who developed reCAPTCHA, has come up with the perfect crowdsourcing project. His new company Duolingo aims teaches people how to speak languages by reading, writing, speaking and listening to translations of Web content. The byproduct of that ...

Duolingo, the language learning service, raises $20 million

Co-founder and chief executive Luis von Ahn -- who teaches computer science at Carnegie Mellon University and also happened to co-invent the reCAPTCHA anti-bot tool -- said there is one goal for Duolingo: To provide free language education to virtually everyone. Von Ahn said the new ...

Duolingo Raises $20M Series C Led By Kleiner Perkins, Wants To Dominate Online Language Learning

As Duolingo’s founder Luis von Ahn told me, the company plans to use this new funding to continue on its path to dominate the language-learning market. Duolingo previously raised a Series A round led by Union Square Ventured in 2011 and a $15 million Series B round led by NEA in 2012. ...

Duolingo 'incubator' aims to crowdsource language teaching

Then these moderators can choose teams of people to help them," explains Luis von Ahn, the Guatemalan creator of Duolingo and one of the pioneers of crowdsourcing. According to Duolingo, one person working 40 hours per week would require about four months to develop one of these courses...

Duolingo Comes To The iPad, Now Has More Than 5M Active Users

Duolingo, the increasingly popular language learning service developed by Luis von Ahn and his team, launched its iPad app today. The service, von Ahn tells me, now has more than 5 million active users and the iPad app will be the Duolingo’s first mobile app to implement the company’s ...

Duolingo Adds Offline Mode And Speech Recognition To Its Mobile App

Duolingo, the popular language-learning service founded by CAPTCHA co-inventor and reCAPTCHA founder Luis von Ahn, just launched the latest version of its mobile app for the iPhone. This new version introduces an offline mode, so users can now do their lessons on the subway and on ...

Study: Learning Spanish With Duolingo Can Be More Effective Than College Classes Or Rosetta Stone

To see how its program performed, the language learning service Duolingo, founded by CAPTCHA inventor Luis von Ahn, commissioned a study (PDF)into the effectiveness of its program. The result, which even surprised von Ahn: it only takes a Duolingo user 34 hours to learn the equivalent of ...

reCaptcha Founder’s Language Learning Site Duolingo To Open To The Public On June 19

At TechCrunch Disrupt New York this morning, Luis von Ahn, the founder of the ambitious free language learning and text translation site Duolingo, announced that the site will come out of private beta on June 19. Duolingo was founded by reCaptcha founder Luis von Ahn in 2011. The ...

Apple’s Top Apps of 2013: Design, Language, and Interaction

)” – USAToday.com Here’s a video demo of Duolingo and the concept that fueled the creation of this app: Luis von Ahn, the creator of Duolingo (and, just as an aside, also the creator of CAPTCHA), decided to create Duolingo to not only equip users to learn languages, but also to enable ...

Computer cracks CAPTCHAs in step toward artificial intelligence

"CAPTCHAs have been around since 2000, and since 2003 there have been stories every six months claiming that computers can break them," said computer scientist Luis von Ahn of Carnegie Mellon University, a co-developer of CAPTCHAs and founder of tech start-up reCAPTCHA, which he sold to ...

Measuring the Success of Online Education

Seventy-five percent of the students are outside of United States, and Carnegie Mellon computer scientist Luis von Ahn notes that the foreign students are significantly more motivated and have a higher completion rate than their American counterparts. The firm, which was founded by Dr. ...

The Daily Start-Up: Kutcher-Backed Language Site Duolingo Finds Its Voice

It’s part web translation tool, part language learning site and is the brainchild of Luis von Ahn. Pearl.com LLC, a website for connecting people who have questions to professionals in hundreds of fields, launched today with $25 million in Series A funding and about $100 million in ...

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