Category Archives: Programming

Researchers Create the First AI-Controlled Robotic Limb That Can Learn To Walk Without Being Programmed

schwit1 shares a report from ScienceAlert: Researchers at the University of Southern Carolina (USC) claim to have created the first AI-controlled robotic limb that can learn how to walk without being explicitly programmed to do so. The algorithm they used is inspired by real-life biology. Just like animals that can walk soon after birth, this robot can figure out how to use its animal-like tendons after only five minutes of unstructured play. Today, most robots take months or years before they are ready to interact with the rest of the world. But with this new algorithm, the team has figured out how to make robots that can learn by simply doing. This is known in robotics as "motor babbling" because it closely mimics how babies learn to speak through trial and error. "During the babbling phase, the system will send random commands to motors and sense the joint angles," co-author Ali Marjaninejad an engineer at USC, told PC Mag. "Then, it will train the three-layer neural network to guess what commands will produce a given movement. We then start performing the task and reinforce good behavior."

Read more of this story at Slashdot.

Twitter Cracks Down on API Abuse, Will Charge B2B Developers

To prevent its own Cambridge Analytica moment and make sure it's getting paid for its data, Twitter said today it will audit developers that use its APIs. From a report: Starting June 19th, Twitter will require developers of any app that calls recent tweets from or mentions a user more than 100,000 times per day to submit their app for review. If a developer proves they have a legitimate consumer use case, like running a third-party Twitter client or doing research, they'll be granted free access to the API at the same rate they have today. If they primarily use the data to serve business customers as a B2B tool, like for customer service or social media monitoring, they'll have to pay to enter a commercial licensing agreement with Twitter with a custom price based on usage. Twitter refused to even specify the range those prices fall into, which won't win it any extra trust. Developers found to be breaking Twitter's policies will be booted from the platform, while those that don't submit for review will be capped at 100,000 requests per day for the user timeline and mentions APIs. Twitter says it suspended 162,000 apps in the second half of 2018, showing it's willing to play hardball with developers that endanger its ecosystem.

Read more of this story at Slashdot.