Zhou Mingtian

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This paper proposes a novel scheme of group key management based on Jacobian Elliptic Chebyshev Rational Map, named Jacobian Group Key Management(JGKM). The scheme is more efficient than other group key managements since fewer re-keying messages are sent when group membership changes. Besides, it provides both forward and backward secrecy. Therefore, this(More)
In this paper we illustrate the architecture of the WebGIS environment, present a model of moving objects in cargo delivery system. This model captures spatial and temporal aspects of the moving objects and incorporates the uncertainties associated with moving objects. We give the operators and trigger definition over time and space. Moreover we present(More)
Rough set theory is an effective mathematical tool for dealing with inconsistencies in information systems. Dominance based rough set (DBRS) is an extension to the original rough set, in which the equivalence relation is replaced by a dominance relation. However, in some condition, the lower approximation of DBRS can be emptied by only one "malicious"(More)
The task of finding transcription start sites (TSSs) can be modeled as a classification problem. Relevance vector machines (RVM) is a family of machine learning methods that represent a Bayesian approach to the training of general linear models (GLM). Based on the Markov-chain Monte Carlo(MCMC) sampler, propose a model for using the RVM to explore very(More)
The new generation of complex mission-critical systems (such as air traffic control systems, security monitoring systems and real time systems) is inherently distributed and operates in highly dynamic environments. Fault tolerance is a main means of assurance of system reliability. Single fault tolerance policy can not satisfy the dynamic changes of these(More)
Collecting, correlating and extracting network performance information is an important premise for effective Grid applications and services. Based on the intrinsic relationship between the Internet and Grid computing, we extend the network performance monitoring activities in the Internet to the Grid scenario and develop a scalable, interoperable Grid(More)
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