To support the advanced concept technology demonstration of intelligence reconnaissance system application on future information battlefield, multi-agent-oriented modeling and simulation technology is applied to set z...
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ISBN:
(纸本)0769524052
To support the advanced concept technology demonstration of intelligence reconnaissance system application on future information battlefield, multi-agent-oriented modeling and simulation technology is applied to set zip the mappings ftom intelligence reconnaissance system's members to respective agents, by which the distributed multi-agent system is designed the established distributed multi-agent system model of intelligence reconnaissance can afford advantage for realizing the simulation of the external, dynamic, complicated and intelligent process.
A distributed simulation environment of fluid flow as a study case is firstly brought forward and then a simulation-based universal distributed solving process that is universal in many problem domains is put forward....
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ISBN:
(纸本)0769524052
A distributed simulation environment of fluid flow as a study case is firstly brought forward and then a simulation-based universal distributed solving process that is universal in many problem domains is put forward. Based on the process, the agent-oriented early requirement analysis of the study case has been carried out basically, and the feasibility and rationality of agent-oriented method and difficulty of object-oriented method for modeling complicated intentional feature have also been discussed.
Maintenance processes in Industry 4.0 applications try to achieve a high degree of quality to reduce the downtime of machinery. the monitoring of executed maintenance activities is challenging as in complex production...
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ISBN:
(纸本)9781728140681
Maintenance processes in Industry 4.0 applications try to achieve a high degree of quality to reduce the downtime of machinery. the monitoring of executed maintenance activities is challenging as in complex production setups, multiple stakeholders are involved. So, full transparency of the different activities and of the state of the machine can only be supported, if these stakeholders trust each other. therefore, distributed ledger technologies, like Blockchain, can be promising candidates for supporting such applications. the goal of this paper is a formal description of business and technical interactions between non-trustful stakeholders in the context of Industry 4.0 maintenance processes using distributed ledger technologies. It also covers the integration of smart contracts for automated triggering of activities.
Despite the recent advances in access control approaches applicable to grid computing, there remain issues that impede the development of effective access control for grid applications. Amongst them are the lack of co...
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ISBN:
(纸本)0769524052
Despite the recent advances in access control approaches applicable to grid computing, there remain issues that impede the development of effective access control for grid applications. Amongst them are the lack of context-based models for access control, and reliance on identity or capability-based access control schemes. In this paper, we propose RCBAC model which extends the RBAC with context constraints. the RCBAC mechanisms dynamically grant and adapt permissions to users based on a set of contextual information collected from the grid environments, while retaining the advantages of RBAC model.
the results of theory and applications of optimal lattice cubature formulas are described. the approximate integration program based on lattice formulas is considered. It has sufficiently high precision for complicate...
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ISBN:
(纸本)9783642032745
the results of theory and applications of optimal lattice cubature formulas are described. the approximate integration program based on lattice formulas is considered. It has sufficiently high precision for complicated domains with smooth boundaries and dimensions tip to 10 and high efficiency of paralleling.
In recent years, network bandwidth and quality has been drastically improved in a speed even much faster than the enhancement of computer performance. Various communication and computing tasks in the fields can be int...
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ISBN:
(纸本)9780769527369
In recent years, network bandwidth and quality has been drastically improved in a speed even much faster than the enhancement of computer performance. Various communication and computing tasks in the fields can be integrated and applied in a distributed system in nowadays. However, those resources are heterogeneous and dynamic in distributed systems connecting a broad range of resources. this study proposed a hybrid load balancing policy to maintain performance and stability of distributed system.
Modern sensor technologies, internet and advanced irrigation equipment allow a relative precise control of agricultural irrigation that leads to high water-use efficiency. However, the core control algorithms that mak...
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ISBN:
(纸本)9781538637906
Modern sensor technologies, internet and advanced irrigation equipment allow a relative precise control of agricultural irrigation that leads to high water-use efficiency. However, the core control algorithms that make use of these technologies have not been well studied. In this work, a reinforcement learning based irrigation control technique is investigated. the delayed reward of crop yield is handled by the temporal difference technique. the learning process can be based on both off-line simulation and real data from sensors and crop yield. Neural network based fast models for soil water level and crop yield are developed to improve the scalability of learning. Simulations for various geographic locations and crop types show that the proposed method can significantly increase net return considering both crop yield and water expense.
A time cost model for CORBA distributedapplications performance is proposed and new insights on enhancing parallelism and performance optimisation techniques of distributed programs are given. Some results on measuri...
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ISBN:
(纸本)3540425225
A time cost model for CORBA distributedapplications performance is proposed and new insights on enhancing parallelism and performance optimisation techniques of distributed programs are given. Some results on measuring performance of experiment applications are presented. A new 4-tiered architecture based on our cost model against traditional 3-tiered one for Internet distributedapplications is proposed.
We consider the parallelcomputing environment where m organizations provide machines and several jobs to be executed. While cooperation of organizations is required to minimize the global makespan, each organization ...
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ISBN:
(纸本)9781424452910
We consider the parallelcomputing environment where m organizations provide machines and several jobs to be executed. While cooperation of organizations is required to minimize the global makespan, each organization also expects the faster completion of its own jobs primarily and thus it is not necessarily cooperative. To handle the situations, we formulate the alpha-cooperative multi-organization scheduling problem (alpha-MOSP), where alpha >= 1 is a parameter representing the degree of cooperativeness. alpha-MOSP minimizes the makespan under the cooperation constraint that each organization does not allow the completion time of its own jobs to be delayed alpha times of that in the case where those jobs are executed by itself. In this paper, we aim to reveal the relation between the makespan and the degree of cooperativeness. First, we investigate the relation between alpha and the quality of the global makespan. For alpha = 1 (i.e., each organization never sacrifices its completion time), we show an instance where the cooperation constraint degrades the optimal makespan by m times. In contrast, for alpha > 1, we can construct an algorithm transforming any unconstrained schedule to one satisfying the cooperation constraint. this algorithm bounds the degradation ratio by alpha/(alpha - 1), which implies that weak cooperation improves the makespan dramatically. Second, we study the complexity of alpha-MOSP. We show its strongly NP-hardness and inapproximability for the approximation factor less than max{(alpha 1)/alpha,3/2}. We also show the hardness of transformation: Even if an optimal schedule under no cooperation constraint is given, no polynomial-time algorithm finds an optimal schedule for a-MOSP. this result is a witness for inexistence of general polynomial-time transformation algorithms that preserve the approximation ratio.
Bulk Synchronous parallel ML is a high-level language for programming parallel algorithms. Built upon OCaml and using the BSP model, it provides a safe setting for their implementation, avoiding concurrency related pr...
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ISBN:
(纸本)9780769530499
Bulk Synchronous parallel ML is a high-level language for programming parallel algorithms. Built upon OCaml and using the BSP model, it provides a safe setting for their implementation, avoiding concurrency related problems (deadlocks, indeterminism). Only a limited set of the features of OCaml can be used in BSML to respect its properties of safety: this paper describes a way to add exception handling to this set by extending and adapting OCaml's exceptions. After a precise definition of the problems that arise and an informal description of the solutions, an extension of BSML is proposed. Formal semantics define the behaviour in all possible cases, followed by a short description of the implementation.
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