Workflow technology is a new hotspot in the area of computer application after 1990s. In order to improve the performance of workflow management system (WfMS), a dynamic neural network based on classical formula compu...
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ISBN:
(纸本)0780378652
Workflow technology is a new hotspot in the area of computer application after 1990s. In order to improve the performance of workflow management system (WfMS), a dynamic neural network based on classical formula computing is proposed to add forecast support to it. On the basis of the requirement of WfMS, neural unit, generation algorithm and computing algorithm for classical logic formula computing are discussed detailedly in turn and the experiment results show that this method is effective and universal.
The present paper provides first the concept and different tasks of case-base maintenance. Then the use of some soft computing techniques, including fuzzy sets, rough sets and fuzzy integral, is described in maintaini...
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ISBN:
(纸本)0780378652
The present paper provides first the concept and different tasks of case-base maintenance. Then the use of some soft computing techniques, including fuzzy sets, rough sets and fuzzy integral, is described in maintaining the case base completeness. From the experimental results, these techniques are shown to be very effective in the modeling and extraction of the domain knowledge in the case base.
Rough sets theory deals with representation, learning and generalization of uncertain knowledge. It can abstract underlying rules from data. Confidence is the criterion to scaling the reliability of rules. This paper ...
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ISBN:
(纸本)0780378652
Rough sets theory deals with representation, learning and generalization of uncertain knowledge. It can abstract underlying rules from data. Confidence is the criterion to scaling the reliability of rules. This paper will synthesize and improve the prevenient researches on rule confidence in rough sets theory, and then give a novel and relatively complete approach to computing confidence, which considers effects on confidence caused by both imperfect and incompatible information. A medical example will prove the validity of this approach.
作者：
Zhao, XLSun, JZTianjin Univ
Elect & Informat Engn Sch IBM Ctr Dept Comp Sci Tianjin 300072 Peoples R China
Conventional Intrusion Detection Systems (IDSs) face many challenges, such as evasion techniques, cryptography, false positives and high rate traffic. Many of them can be resolved by parallel methods. In this paper a ...
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ISBN:
(纸本)0780378652
Conventional Intrusion Detection Systems (IDSs) face many challenges, such as evasion techniques, cryptography, false positives and high rate traffic. Many of them can be resolved by parallel methods. In this paper a parallel scheme is proposed, which is to attempt to ease the workload by integrating a cluster into IDS, allowing tasks to be parallelly excuted in the cluster. This increases performance even under hostile loads and enables efficient intrusion detection in high speed networks.
This paper discusses the influence of conditional attributes on decision attribute, presents an order of conditional attributes and a method of searching key conditional attributes to. decision by Rough set theory. Co...
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ISBN:
(纸本)0780378652
This paper discusses the influence of conditional attributes on decision attribute, presents an order of conditional attributes and a method of searching key conditional attributes to. decision by Rough set theory. Considering the bandwidth limited in mobile computing environment, we describe a method of information measurement of the rule set of selected key attributes. And considering the balance between the number and the information of the rules, we provide a definition of objective function of drawing rules and discuss its properties. Those contributions may provide some helps for rule reduction and mobile decision support.
In traditional rough set theory, the simplification of a decision table was investigated and minimal algorithms were introduced to express its result. However, the optimization of minimal algorithms is still left asid...
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ISBN:
(纸本)0780378652
In traditional rough set theory, the simplification of a decision table was investigated and minimal algorithms were introduced to express its result. However, the optimization of minimal algorithms is still left aside. In this paper, we first propose an algorithm for computing all reducts of every decision rule in a decision table, and then we explore three optimal problems of minimal algorithms of a decision table. Specifically, we prove them to be NP-hard and give heuristic algorithms for solving them. Finally, these heuristic algorithms are programmed and demonstrated on three examples.
It is very necessary for the mobile computing system to be equipped with the checkpointing recovery facility because of the fact that the MHs are vulnerable to the failures. Previous recovery schemes based on message ...
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ISBN:
(纸本)0780378652
It is very necessary for the mobile computing system to be equipped with the checkpointing recovery facility because of the fact that the MHs are vulnerable to the failures. Previous recovery schemes based on message logging are under the condition that exchanged messages among mobile hosts are forwarded by MSSs(m-MSS-m communication). A new recovery protocol is presented for mobile host direct to mobile host(m-m) communication wireless network in this paper. The m-m communication contributes to a less contention on the wireless network and a lower latency for message transmission than m-MSS-m. Theoretical analyses and simulation results show that the proposed approach provides higher performance in terms of fail-free overhead and recovery overhead than traditional schemes.
This paper presents a hybrid soft computing modeling approach, a neurofuzzy system based on rough set theory and genetic algorithms (NFRSGA). To solve the curse of dimensionality problem of neurofuzzy system, rough se...
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ISBN:
(纸本)0780378652
This paper presents a hybrid soft computing modeling approach, a neurofuzzy system based on rough set theory and genetic algorithms (NFRSGA). To solve the curse of dimensionality problem of neurofuzzy system, rough set is applied to obtain the reductive fuzzy rule set. The number of rules decreases, and each rule does not need all condition attributes values. Genetic algorithm is used to obtain the optimal discretization of continuous attributes. Then the fuzzy system is represented via an equivalent artificial neural network (ANN). The convergence of the ANN training is fast, and the structure size of the ANN becomes small.
In the ubiquitous computing environment (UCE), how to seamlessly provision the service or application to its occupant or its mobile user is an interesting research topic. This paper introduces our two UCEs called Smar...
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ISBN:
(纸本)0780378652
In the ubiquitous computing environment (UCE), how to seamlessly provision the service or application to its occupant or its mobile user is an interesting research topic. This paper introduces our two UCEs called Smart Classroom (SCR) and Intelligent Meeting Room (IMR) respectively. When a teacher gives his lesson in the SCR, difference services will automatically be provisioned to him according to captured context information. When the users with various kinds of portable devices, such as PDA, Mobile Phone or Laptop, attend a meeting in IMR, they can easily organize a meeting and unobtrusively access the services provided by IMR, for example, they can give presentation by "projector service". The paper also describes the software infrastructure of SCR and IMR Smart Platform, a Multi Agents (MAs) system.
Although CORBA, as middleware, has emerged as a promising means of solving problems of heterogeneity (e.g. heterogeneous hardware, operating systems, programming languages, etc) in distributed environments. Undoubtedl...
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ISBN:
(纸本)0780378652
Although CORBA, as middleware, has emerged as a promising means of solving problems of heterogeneity (e.g. heterogeneous hardware, operating systems, programming languages, etc) in distributed environments. Undoubtedly, It makes applications more complex and bulky. Furthermore, failure only in CORBA component maybe will make the whole application system crashed. So it is suggested that the distributed application systems should avoid adopting numerous CORBA service as possible for higher reliability. In this paper, we present a novel design approach to resolve the problem of resource management with few CORBA services as possible. Without using CORBA load balance service, we have successfully implemented load balance in high performance, complex distributed real-time computing system.
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