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Archivo del Autor: Belen De Leon

Facebook’s ‘Rosetta’ system helps the company understand memes

Memes are the language of the web and Facebook wants to better understand them.

Facebook’s AI teams have made substantial advances over the years in both computer vision and natural language recognition. Today, they’ve announced some of their latest work that works to combine advances in the two fields. A new system, codenamed “Rosetta,” helps teams at Facebook and Instagram identify text within images to better understand what their subject is and more easily classify them for search or to flag abusive content.

It’s not all memes, the tool scans over a billion images and video frames daily across multiple languages in real time, according to a company blog post.

Rosetta makes use of recent advances in optical character recognition (OCR) to first scan an image and detect text that is present, at which point the characters are placed inside a bounding box that is then analyzed by convolutional neural nets that try to recognize the characters and determine what’s being communicated.

via Facebook

This technology has been in practice for a while — Facebook has been working with OCR since 2015 — but implementing this across the company’s vast networks provides a crazy degree of scale that  pointed the company to develop some new strategies around character detection and recognition.

If you’re interested in some of the more technical details of what they did here, check out the team’s research paper on the topic.

Facebook has plenty of reasons to be interested in the text that is accompanying videos or photos, particularly when it comes to their content moderation needs.

While identifying spam is pretty straight forward when the text description of a photo is “Bruh!!! 🤣🤣🤣” or “1 like = 1 prayer,” but videos and photos that employ similar techniques seemed to be more present in timelines as Facebook tweaks its algorithm to promote “time well spent.” The same goes for hate speech which can much more easily be shared when all the messaging is encapsulated in one image or video which makes text overlays a useful tool.

The company says that this system presents new challenges for the company in terms of multi-language support as it’s currently running off a unified model for languages and the bulk of available training data is currently in the Latin alphabet. In the company’s research paper, the team details that it has some strategies to conjure up new language support by repurposing existing databases.

As Facebook looks to offload work from human content moderators and allow its news feed algorithms to sort content based on assigned classifications, a tool like this has a lot of potential to shape how Facebook identifies harmful content but also put more interesting content in front of you.


Source: TechCrunch

Samsung opens its largest worldwide store in former opera house – CNET

The company is trying to beat Apple and Chinese rivals in the world’s second biggest smartphone market.
Source: CNET

Ahead of Pixel 3 event, Google updates USB-C headphone adapter – CNET

The more efficient dongle now costs $12, up from $9.
Source: CNET

MacBook Air 2018: All the rumors on specs, price and Touch ID possibilities for Sept. 12 – CNET

Will a new MacBook Air equipped with Touch ID make an appearance at Wednesday’s big event?
Source: CNET

Volvo idles new SC plant over Hurricane Florence fears – Roadshow

The Swedish automaker’s new Charleston plant has only been building cars for a couple of weeks.
Source: CNET

Watch Moritz Simon Geist's Sonic Robots Play Thumping Techno Music in His Video for 'Entropy'

The German musician builds robots that make sound, then orchestrates them to create unique and funky dance tracks.
Source: Wired

LA's Teaming up With Other Cities to Get Cheaper EVs

It’s leading a group of 30 cities that will work together to get better deals on electric cars.
Source: Wired

Why an Army of Small Companies Is Defending The Sprint/T-Mobile Merger

Mobile Virtual Network Operators, which serve largely low-income users, have little to gain from the Sprint/T-Mobile merger. They’re advocating for it because of a secret agenda: fear of the new telecom overlords.
Source: Wired

We Know Exactly How to Stop Wildfires—With Money

Wildfires would be much less destructive if forests were managed actively, with controlled burns and by culling trees and undergrowth. But someone has to pay for that.
Source: Wired

Tesla’s sleek wireless smartphone charger will soon be available again

Last month Tesla introduced a limited edition smartphone charger. Even though it was overpriced and slow, the charger quickly sold out. Now Tesla says the charger will soon be available again and at a lower price.

The charger features 6,000mAh of juice and 5W of wireless output charging and 7.5W through USB. The first time around, the charger was $65 but now it will cost $50. Still, as The Verge points out even at the lower cost, similar wireless chargers can be had for less money and often sport a larger battery. But they don’t say Tesla.

This charger is the latest in Tesla’s small electronic lifestyle items. They’ve long sold USB chargers designed to mimic the design and appeal of its Supercharger line. This latest version looks like the Tesla Powerwall battery — but as awesome as the Powerwall is, it cannot wireless charge a smartphone.


Source: TechCrunch

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