2017년 7월 11일 화요일

Google DeepMind AI learns to creatively move around obstacles



Reinforcement learning (RL) is the practice of teaching and guiding behavior by using a reward system. Desirable behavior produces rewards; undesirable behavior does not. It's a common tool used in machine learning, and now the the Alphabet team has used it to teach the DeepMind AI to successfully navigate a parkour course.
The team wanted to see if simple rewards would work in a complex environment. They set up a virtual parkour course with drops, hurdles and ledges and set a reward for forward progress. At its most basic level, the system was as follows: the faster the AI moved across the terrain, the greater the rewards. Additional incentives and penalties were added for more complex programs.




All of the stick figure's navigation was taught via reinforcement learning. The AI used a trial and error system to figure out how to move forward as fast as possible without "terminating."




It's clear that DeepMind is using creative solutions to get around the obstacles it's presented with; much of the time, the movement that provides the most efficient solution isn't exactly natural looking. It presents interesting possibilities for future AI because robots don't actually have to restrict themselves to human-like movements in order to accomplish set goals. It will be interesting to see if this has an effect on future AI and robot development.

LG전자, 美 로봇개발 스타트업 ‘보사노바 로보틱스’에 3백만불 투자

LG전자가 최근 美 로봇개발업체인 ‘보사노바 로보틱스(BossaNova Robotics)’에 3백만 달러를 투자했다. 해외 로봇개발업체에 투자한 것은 이번이 처음이다. 美 샌프란시스코에 본사를 둔 ‘보사노바 로보틱스’는 2005년 설립됐고 로...