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This paper introduces the Hierarchical Petri net Simulator (HiPS), which is a Petri net design tool implemented using C# and C++, the .NET Framework, and an interprocess communication channel. HiPS supports hierarchical modeling and can analyze the dynamic and structural properties of a Petri net by generating state spaces. The state space generation engine in HiPS provides a memory-saving technique...
Japan has emphasized in the strategy of smart city which we believe an inevitable trend for the social innovation of Japanese cities. The current trend of smart tourism is becoming one of the important part for the urban renovation due to integration of ICT technology in tourism. However, there are plenty of regions which are facing different kinds of social problems. For example, most of the cities...
In this paper, we discuss the multi-master replication of a Learning Assistance System (LAS). An LAS is an enhanced Learning Management System (LMS) developed in the lab of Wakkanai Hokusei Gakuen University. We consider an LAS cluster where availability of the service is inevitable. Data replication can be used to improve availability. However, the replication process can present several problems,...
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