This paper proposes a checking method based on mutual instances and discusses three key problems in the method： how to deal with mistakes in the mutual instances and how to deal with too many or too few mutual instan...This paper proposes a checking method based on mutual instances and discusses three key problems in the method： how to deal with mistakes in the mutual instances and how to deal with too many or too few mutual instances. It provides the checking based on the weighted mutual instances considering fault tolerance, gives a way to partition the large-scale mutual instances, and proposes a process greatly reducing the manual annotation work to get more mutual instances. Intension annotation that improves the checking method is also discussed. The method is practical and effective to check subsumption relations between concept queries in different ontologies based on mutual instances.展开更多
This paper discusses and compares some common architectures used inautonomous mobile robotics. Then it describes a behavior-based autonomous mobile robot that wasimplemented successfully in the Robotics Lab of the Dep...This paper discusses and compares some common architectures used inautonomous mobile robotics. Then it describes a behavior-based autonomous mobile robot that wasimplemented successfully in the Robotics Lab of the Department of Precision Mechanical Engineering.Fuzzy controller was used to implement the emergency behavior, the behaviors arbitration wasimplemented using the subsumption architecture. In an unknown dynamic indoor environment, the robotachieved real-time obstacle avoidance properties that are cruel for mobile robotics.展开更多
Cyber-physical systems(CPSs)are distributed assemblages of computing,communicating,and physical components that sense their environment,algorithmically assess the incoming information,and affect their physical environ...Cyber-physical systems(CPSs)are distributed assemblages of computing,communicating,and physical components that sense their environment,algorithmically assess the incoming information,and affect their physical environment.Thus,they share a common structure with other complex adaptive systems,and therefore share both the possible benefits and the probable harmful effects of emergent phenomena.Emergence is an often unexpected pattern that arises from the interactions among the individual system components and the environment.In this paper we focus on three major problems concerning emergence in the context of CPSs:how to successfully exploit emergence,how to avoid its detrimental effects in a single CPS,and how to avoid harmful emergence that arises due to unexpected interaction among several independently developed CPSs that are operating in the same environment.We review the state of the research with regard to these problems and outline several approaches that could be used to address them.展开更多
基金Supported by the National Natural Sciences Foundation of China(60373066 ,60425206 ,90412003) , National Grand Fundamental Research 973 Pro-gramof China(2002CB312000) , National Research Foundation for the Doctoral Pro-gramof Higher Education of China (20020286004)
文摘This paper proposes a checking method based on mutual instances and discusses three key problems in the method： how to deal with mistakes in the mutual instances and how to deal with too many or too few mutual instances. It provides the checking based on the weighted mutual instances considering fault tolerance, gives a way to partition the large-scale mutual instances, and proposes a process greatly reducing the manual annotation work to get more mutual instances. Intension annotation that improves the checking method is also discussed. The method is practical and effective to check subsumption relations between concept queries in different ontologies based on mutual instances.
文摘This paper discusses and compares some common architectures used inautonomous mobile robotics. Then it describes a behavior-based autonomous mobile robot that wasimplemented successfully in the Robotics Lab of the Department of Precision Mechanical Engineering.Fuzzy controller was used to implement the emergency behavior, the behaviors arbitration wasimplemented using the subsumption architecture. In an unknown dynamic indoor environment, the robotachieved real-time obstacle avoidance properties that are cruel for mobile robotics.
基金the Capacity Development Fund of Southwest University,China(No.SWU116007)the National Natural Science Foundation of China(Nos.61732019,61672435,and 61811530327)。
文摘Cyber-physical systems(CPSs)are distributed assemblages of computing,communicating,and physical components that sense their environment,algorithmically assess the incoming information,and affect their physical environment.Thus,they share a common structure with other complex adaptive systems,and therefore share both the possible benefits and the probable harmful effects of emergent phenomena.Emergence is an often unexpected pattern that arises from the interactions among the individual system components and the environment.In this paper we focus on three major problems concerning emergence in the context of CPSs:how to successfully exploit emergence,how to avoid its detrimental effects in a single CPS,and how to avoid harmful emergence that arises due to unexpected interaction among several independently developed CPSs that are operating in the same environment.We review the state of the research with regard to these problems and outline several approaches that could be used to address them.
