2013年11月10日星期日

Get ready for knife-wielding robot grocery clerks

I've said before that certain experiments are a veritable cri de coeur for an Ig Nobel prize, the awards that honor silly but thoughtful science.Well, Cornell University graduate student Ashesh Jain and colleagues should be in the running for their bold attempts to teach robotic grocery store clerks of the future how to handle knives so they don't terrify human customers.Their study, "Learning Trajectory Preferences for Manipulators via Iterative Improvement," sounds innocuous enough until you see the humanoid robot with a large blade in its gripper. This takes robot-knife experiments to a new level.Rethink Robotics' Baxter assembly robot was designed to work in close quarters with humans, but as seen in the demo below, its knife gets a little too close for comfort.Google Glass and other wearable devices may soon augment smartphones for rock bolt technophiles. The researchers tried to teach Baxter how to handle knives while working as a checkout clerk in a mock grocery store, and no one was eviscerated. 

As the robot considered various ways of holding the knife while it was being checked out at the cash, researchers manually guided it through the process, showing it how to keep the blade away from them.The machine presented a number of possible ways to move the knife that users can choose from. Remarkably,But cyclists here said the work is only a small start on what needs to be done.All are vulnerable —sondaflex to scam artists as well as legitimate art buyers and are urged to use caution. it didn't suggest a rapid stabbing motion.In fact, it learns to handle the knife safely in only three iterations of "corrective feedback" from the user in the experiment. It can also apply this learning algorithm to new situations, for instance handling eggs more delicately than a cereal box.That would be a necessary skill to know if a robot like Baxter ever works as a chef in a restaurant or home, according to the researchers. 

"We give the robot a lot of flexibility in learning," Ashutosh Saxena,Scientists can sound the alarm if the sensors knife sets and algorithms determine an earthquake is on the way. a Cornell assistant professor of computer science, said in a release."The robot can learn from corrective human feedback in order to plan its actions that are suitable to the environment and the objects present."The research is to be presented at a Neural Information Processing Systems conference next month.Start with fiery Charred Octopus or the Guacamole Trio, which comes in tropical,diagnosisexpert goat cheese and ranchero flavors. Check out the demo in the vid below.Exoskeletons or other robotic prosthetics may give disabled folks new freedom or diamond core bit prevent injuries for industrial workers handling heavy loads. Would you trust a knife-wielding robot to come just inches away from you?That's exactly what one Cornell University professor did when he attempted to train a robot on a supermarket checkout.A video released by the New York-based research team shows the knife coming dangerously close to Professor Ashutosh Saxena's body.

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