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적응형 정책학습을 이용한 다양한 환경에서의 강인한 주행성능 개선
이교운(Kyowoon Lee),김성운(Seongun Kim),한지연(Jiyeon Han),최환일(Hwanil Choi),Daiki Matsunaga,최재식(Jaesik Choi) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
The optimal robot navigation policies vary according to the environment. This paper addresses a challenge to adaptively learn and find an optimal policy for the various environment settings for a mobile robot without extensively training for each environment. To solve this problem, we apply policy transfer with strategy optimization. We first train a family of policies for various environmental settings, and find the best policy with strategy optimization. We evaluate our method on the simulation with the various environment settings and show that the proposed algorithm is adaptive to the various environments.
임병직(Byoungjik Lim),서성현(Seonghyeon Seo),김문기(Munki Kim),강동혁(Donghyuk Kang),한영민(Yeong-Min Han),최환(Hwan-Seok Choi) 한국추진공학회 2010 한국추진공학회지 Vol.14 No.5
For the successful development of 75-tonf-class liquid rocket engine, a plenty of tests on each engine component have to be performed and this is equally true for a combustor. However the test facility which is in operation at Korea Aerospace Research Institute lacks its capacity to perform fire tests of a 75 tonf class combustor at its nominal thrust. Since the test facility has to be ready prior to the start of development tests, it is very urgent to establish the test facility. The preliminary design of a test facility for a 75 tonf class combustor which was performed according to such a necessity is described in the paper.