The Experts below are selected from a list of 147054 Experts worldwide ranked by ideXlab platform
Junji Furusho - One of the best experts on this subject based on the ideXlab platform.
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Basic Algorithm to represent arbitrary shape with passive force display
Journal of the Robotics Society of Japan, 2006Co-Authors: Kenichi Koyanagi, Junji Furusho, Tomoko MoritaAbstract:Various applications as tele-operation, training, amusement, design supporting and other virtual reality become more immersible by force sensation. While passive force displays which use only passive elements are inherently safe, unique control strategies are required to interact with virtual objects, such as tracing over surfaces of the objects. In this paper, we introduced a Basic Algorithm to represent virtual walls with arbitrary orientation by passive force display. And we developed it to present polygons as triangle or circle for displaying arbitrary shape objects. Passive type systems also have a problem as it is hard to present some positions and orientations of virtual objects. Against that problem, we used a passive type force display system with redundant couple of brakes mentioned in the previous paper.
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Basic Algorithm of controlling passive force display system with redundant brakes
International Conference on Robotics and Automation, 2005Co-Authors: Kenichi Koyanagi, Tomoko Morita, Junji FurushoAbstract:Force information in virtual space is important and often required for tele-operation, training, amusement, design supporting, and other virtual reality systems. While passive force display which uses only passive elements is an effective method for assuring safety, it has some directions and link postures which are hard to present force. To this problem, a method for improvement of controllability using redundant couple of brakes had been suggested. This method was able to make it possible to display various force directions and various postures of virtual objects. The purpose of this study was further improvement of controllability of systems with redundant couple of brakes. In this paper, we discussed the outline of developed redundant-type system and Basic experiments with it. We also mentioned an Algorithm how to use the brakes to represent various positions and orientations of virtual objects. It was confirmed by experiments in some typical cases.
G Kember - One of the best experts on this subject based on the ideXlab platform.
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siso extended predictive control formulation and the Basic Algorithm
Isa Transactions, 2006Co-Authors: Mamoun Abuayyad, Rickey Dubay, G KemberAbstract:A new predictive controller is developed that represents a significant change from conventional model predictive control. The method termed extended predictive control (EPC) uses one tuning parameter, the condition number of the system matrix to provide an easy-to-follow tuning procedure. EPC drastically improves the system matrix conditionality resulting in faster closed-loop response without oscillatory transients. The control performance of EPC is compared with the original move suppressed and recently derived shifted predictive controllers, with improved results.
Kenichi Koyanagi - One of the best experts on this subject based on the ideXlab platform.
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Basic Algorithm to represent arbitrary shape with passive force display
Journal of the Robotics Society of Japan, 2006Co-Authors: Kenichi Koyanagi, Junji Furusho, Tomoko MoritaAbstract:Various applications as tele-operation, training, amusement, design supporting and other virtual reality become more immersible by force sensation. While passive force displays which use only passive elements are inherently safe, unique control strategies are required to interact with virtual objects, such as tracing over surfaces of the objects. In this paper, we introduced a Basic Algorithm to represent virtual walls with arbitrary orientation by passive force display. And we developed it to present polygons as triangle or circle for displaying arbitrary shape objects. Passive type systems also have a problem as it is hard to present some positions and orientations of virtual objects. Against that problem, we used a passive type force display system with redundant couple of brakes mentioned in the previous paper.
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Basic Algorithm of controlling passive force display system with redundant brakes
International Conference on Robotics and Automation, 2005Co-Authors: Kenichi Koyanagi, Tomoko Morita, Junji FurushoAbstract:Force information in virtual space is important and often required for tele-operation, training, amusement, design supporting, and other virtual reality systems. While passive force display which uses only passive elements is an effective method for assuring safety, it has some directions and link postures which are hard to present force. To this problem, a method for improvement of controllability using redundant couple of brakes had been suggested. This method was able to make it possible to display various force directions and various postures of virtual objects. The purpose of this study was further improvement of controllability of systems with redundant couple of brakes. In this paper, we discussed the outline of developed redundant-type system and Basic experiments with it. We also mentioned an Algorithm how to use the brakes to represent various positions and orientations of virtual objects. It was confirmed by experiments in some typical cases.
Tomoko Morita - One of the best experts on this subject based on the ideXlab platform.
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Basic Algorithm to represent arbitrary shape with passive force display
Journal of the Robotics Society of Japan, 2006Co-Authors: Kenichi Koyanagi, Junji Furusho, Tomoko MoritaAbstract:Various applications as tele-operation, training, amusement, design supporting and other virtual reality become more immersible by force sensation. While passive force displays which use only passive elements are inherently safe, unique control strategies are required to interact with virtual objects, such as tracing over surfaces of the objects. In this paper, we introduced a Basic Algorithm to represent virtual walls with arbitrary orientation by passive force display. And we developed it to present polygons as triangle or circle for displaying arbitrary shape objects. Passive type systems also have a problem as it is hard to present some positions and orientations of virtual objects. Against that problem, we used a passive type force display system with redundant couple of brakes mentioned in the previous paper.
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Basic Algorithm of controlling passive force display system with redundant brakes
International Conference on Robotics and Automation, 2005Co-Authors: Kenichi Koyanagi, Tomoko Morita, Junji FurushoAbstract:Force information in virtual space is important and often required for tele-operation, training, amusement, design supporting, and other virtual reality systems. While passive force display which uses only passive elements is an effective method for assuring safety, it has some directions and link postures which are hard to present force. To this problem, a method for improvement of controllability using redundant couple of brakes had been suggested. This method was able to make it possible to display various force directions and various postures of virtual objects. The purpose of this study was further improvement of controllability of systems with redundant couple of brakes. In this paper, we discussed the outline of developed redundant-type system and Basic experiments with it. We also mentioned an Algorithm how to use the brakes to represent various positions and orientations of virtual objects. It was confirmed by experiments in some typical cases.
David Silver - One of the best experts on this subject based on the ideXlab platform.
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monte carlo tree search and rapid action value estimation in computer go
Artificial Intelligence, 2011Co-Authors: Sylvain Gelly, David SilverAbstract:A new paradigm for search, based on Monte-Carlo simulation, has revolutionised the performance of computer Go programs. In this article we describe two extensions to the Monte-Carlo tree search Algorithm, which significantly improve the effectiveness of the Basic Algorithm. When we applied these two extensions to the Go program MoGo, it became the first program to achieve dan (master) level in 9x9 Go. In this article we survey the Monte-Carlo revolution in computer Go, outline the key ideas that led to the success of MoGo and subsequent Go programs, and provide for the first time a comprehensive description, in theory and in practice, of this extended framework for Monte-Carlo tree search.