Tag Archives: reward

Netflix drops $1 million algorithm, goes all-in on streaming recommendations

 

Netflix awarded a $1 million prize to a developer team in 2009 for an algorithm that increased the accuracy of the company’s recommendation engine by 10 percent. But today it doesn’t use the million-dollar code, and has no plans to implement it in the future, Netflix announced on its blog Friday.

The post goes on to explain why: a combination of too much engineering effort for the results, and a shift from movie recommendations to the “next level” of personalization caused by the transition of the business from mailed DVDs to video streaming.

Netflix notes that it does still use two algorithms from the team that won the first Progress Prize for an 8.43 percent improvement.

via ars technica

It turns out that all the prize-winning work was perfect for DVD-by-mail where users add something to their queue and, best-case scenario, receive it the following day. But, now that instant streaming is taking over the parameters have changed. Viewers want something to watch immediately and like the option of flipping between several options.

That is why the Netflix updated all of its interfaces to show rows of movies giving you many, many options. It’s a subtle shift from finding the one movie you will love two days from now, to showing all the possible movies you might want to watch right now.

I guess that is the simplest way to put it, but if you want to know more the Netflix personalization science and engineering team, Xavier Amatriain and Justin Basilico, posted a lengthy and detailed, but interesting write-up, Beyond the 5 stars.

Google challenges any hacker to take down Chrome – “I am the king of the world!”

Google Will Offer $1 Million In Rewards For Hacking Chrome

For the last three years, Google’s Chrome browser has left the world’s premiere hacking competition unscathed, even as Firefox, Internet Explorer and Safari have all been taken down.

Google announced Monday evening that it’s offering up to a million dollars in rewards at the annual Pwn2Own hacking contest, which takes place next week at the CanSecWest security conference in Vancouver. Hackers don’t necessarily need to target Chrome to win a chunk of that money: Google is paying $20,000 to any participant who can exploit hackable bugs in Windows, Flash, or a device driver, security problems that would affect users of all browsers. But for hacks that include flaws specific to Chrome, Google will pay $40,000 each, and for those that exploit only bugs in Chrome, the company will shell out $60,000, up to its million dollar limit.

Since Chrome first appeared as a target in the Pwn2Own contest in 2009, participating hackers haven’t even tried to exploit the browser…that’s a sign that none of the researchers could find a chink in Chrome’s armor.

Even when Google offered an extra $20,000 to anyone who could hack its browsers last year, no one took up the challenge.

via Forbes

Google challenges any hacker to take down Chrome – "I am the king of the world!"

Google Will Offer $1 Million In Rewards For Hacking Chrome

For the last three years, Google’s Chrome browser has left the world’s premiere hacking competition unscathed, even as Firefox, Internet Explorer and Safari have all been taken down.

Google announced Monday evening that it’s offering up to a million dollars in rewards at the annual Pwn2Own hacking contest, which takes place next week at the CanSecWest security conference in Vancouver. Hackers don’t necessarily need to target Chrome to win a chunk of that money: Google is paying $20,000 to any participant who can exploit hackable bugs in Windows, Flash, or a device driver, security problems that would affect users of all browsers. But for hacks that include flaws specific to Chrome, Google will pay $40,000 each, and for those that exploit only bugs in Chrome, the company will shell out $60,000, up to its million dollar limit.

Since Chrome first appeared as a target in the Pwn2Own contest in 2009, participating hackers haven’t even tried to exploit the browser…that’s a sign that none of the researchers could find a chink in Chrome’s armor.

Even when Google offered an extra $20,000 to anyone who could hack its browsers last year, no one took up the challenge.

via Forbes

Who’s having a fantastic struggle? Show me your struggle. That is something that should be rewarded. (changing praise in schools)

For decades, the prevailing wisdom in education was that high self-esteem would lead to high achievement. The theory led to an avalanche of daily affirmations, awards ceremonies and attendance certificates — but few, if any, academic gains.

Now, an increasing number of teachers are weaning themselves from what some call empty praise. Drawing on psychology and brain research, these educators aim to articulate a more precise, and scientific, vocabulary for praise that will push children to work through mistakes and take on more challenging assignments. Consider teacher Shar Hellie’s new approach in Montgomery County.

To get students through the shaky first steps of Spanish grammar, Hellie spent many years trying to boost their confidence. If someone couldn’t answer a question easily, she would coach him, whisper the first few words, then follow up with a booming “¡Muy bien!”

But on a January morning at Rocky Hill Middle School in Clarksburg, the smiling grandmother gave nothing away. One seventh-grade boy returned to the overhead projector three times to rewrite a sentence, hesitating each time, while his classmates squirmed in silence.

Via Washington Post: In schools, self-esteem boosting is losing favor to rigor, finer-tuned praise