{"id":5752,"date":"2020-04-22T09:51:20","date_gmt":"2020-04-22T12:51:20","guid":{"rendered":"https:\/\/www.nachodelatorre.com.ar\/mosconi\/?p=5752"},"modified":"2020-04-22T09:51:20","modified_gmt":"2020-04-22T12:51:20","slug":"google-avanza-en-robotica","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=5752","title":{"rendered":"Google avanza en rob\u00f3tica"},"content":{"rendered":"<p>Los investigadores de Google est\u00e1n utilizando el aprendizaje por imitaci\u00f3n para ense\u00f1ar a los robots aut\u00f3nomos c\u00f3mo caminar, girar y moverse de manera m\u00e1s \u00e1gil. Usando un conjunto de datos de captura de movimiento de varios sensores conectados a un perro, los investigadores le ense\u00f1aron a un robot cuadr\u00fapedo llamado Laikago varios movimientos diferentes que son dif\u00edciles de lograr a trav\u00e9s de controles rob\u00f3ticos codificados a mano tradicionales.<\/p>\n<hr \/>\n<p><strong>What they did:<\/strong>\u00a0Using a data set of motion capture data recorded from various sensors attached to a dog, the researchers taught a quadruped robot named Laikago several different movements that are hard to achieve through traditional hand-coded robotic controls.<\/p>\n<p><strong>How they did it:<\/strong>\u00a0First, they used the motion data from the real dog to construct simulations of each maneuver, including a dog trot, side-step, and \u2026 a dog version of classic \u201980s dance move, the running man. (The last one was not, in fact, performed by the real dog itself. The researchers manually animated the simulated dog to dance to see if that would translate to the robot as well.) They then matched together key joints on the simulated dog and the robot to make the simulated robot move in the exact same way as the animal. Using reinforcement learning, it then learned to stabilize the movements and correct for differences in weight distribution and design. Finally, the researchers were able to port the final control algorithm into a physical robot in the lab\u2014though some moves, like the running man, weren\u2019t entirely successful.<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-5752-1\" width=\"640\" height=\"352\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.fie.undef.edu.ar\/ceptm\/wp-content\/uploads\/2020\/04\/laikagoteasersmaller-1.mp4?_=1\" \/><a href=\"https:\/\/www.fie.undef.edu.ar\/ceptm\/wp-content\/uploads\/2020\/04\/laikagoteasersmaller-1.mp4\">https:\/\/www.fie.undef.edu.ar\/ceptm\/wp-content\/uploads\/2020\/04\/laikagoteasersmaller-1.mp4<\/a><\/video><\/div>\n<p><strong>Why it matters:<\/strong>\u00a0Teaching robots the complex and agile movements necessary to navigate the real world has been a long-standing challenge in the field. Imitation learning of this kind instead allows such machines to easily borrow the agility of animals and even humans.<\/p>\n<p><strong>Future work:<\/strong>\u00a0Jason Peng, the\u00a0<a href=\"https:\/\/arxiv.org\/pdf\/2004.00784.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">lead author<\/a>\u00a0on the paper, says there are still a number of challenges to overcome. The heaviness of the robot limits its ability to learn certain maneuvers, like big jumps or fast running. Additionally, capturing motion sensor data from animals isn\u2019t always possible. It can be incredibly expensive and requires the animal\u2019s cooperation. (A dog is friendly; a cheetah, not so much.) The team plans to try using animal videos instead, which would make their technique far more accessible and scalable.<\/p>\n<p><strong>Fuente:<\/strong> <a href=\"https:\/\/www.technologyreview.com\/2020\/04\/03\/998489\/google-ai-robotic-dog-learns-with-imitation-reinforcement-learning\/\" target=\"_blank\" rel=\"noopener noreferrer\"><em>https:\/\/www.technologyreview.com<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Los investigadores de Google est\u00e1n utilizando el aprendizaje por imitaci\u00f3n para ense\u00f1ar a los robots aut\u00f3nomos c\u00f3mo caminar, girar y moverse de manera m\u00e1s \u00e1gil.&hellip; <\/p>\n","protected":false},"author":1,"featured_media":5754,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/5752"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5752"}],"version-history":[{"count":0,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/5752\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/media\/5754"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}