techkenyot.com
techkenyot.com September 20, 2018


Facebook builds AI to understand memes

14 September 2018, 11:43 | Casey Mitchell

Facebook's 'Rosetta' AI can extract text from a billion images daily

Facebook

For better or worse, memes are a part of the online culture, and they are especially prevalent on social media sites.

The Rosetta system is now operational in Facebook's network, being used daily, the authors write.

Facebook Meme
Facebook's Rosetta AI can read all the memes

As you might already known, Facebook relies heavily on algorithms to sift and sort through content.

For what its worth, Facebook and Twitter have constantly updated their policies, and put in place mechanisms to curb the spread of offensive content on their platforms. Facebook employs flesh and blood moderators too, of course, but its fancy algorithms play a huge role in the experience.

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Using this system, Facebook is able to extract the text from an image - such as a meme - as well as from videos shared on Facebook and Instagram.

The system approaches text analysis as a so-called sequence prediction problem. The overall process involves two steps of detecting a rectangular region that might contain text and then performing text recognition using a convolutional neural network (CNN). There's also a training element at play. It will scan all the image on which it is overlaid which will lead to the engineers I order to equip Rosetta with the predictive capabilities.

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Enter Rosetta - The AI that Facebook built in-house is being deployed across Instagram and its flagship platform.

"The rapid growth of videos as a way to share content, the need to support many more languages, and the increasing number of ways in which people share content make text extraction from images and videos an exciting challenge that helps push the frontiers of computer vision research and applications", the company writes.

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This is just the beginning of what Facebook hopes to accomplish. The AI system is meant to keep an eye out for inappropriate or harmful content on Facebook-owned platforms, as well as streamline photo search and enhance accessibility to visually-impaired via screen readers. These are all things Facebook is working to improve. In addition, text doesn't always come in neat, horizontal rows-it's sometimes warped, rotated, obfuscated, or otherwise distorted.



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