The capability requirements of the command, control, communication, computing, intelligence, surveillance, reconnaissance (C41SR) systems are full of uncertain and vague information, which makes it difficult to mode...The capability requirements of the command, control, communication, computing, intelligence, surveillance, reconnaissance (C41SR) systems are full of uncertain and vague information, which makes it difficult to model the C41SR architecture. The paper presents an approach to modeling the capability requirements with the fuzzy unified modeling language (UML) and building domain ontologies with fuzzy description logic (DL). The UML modeling constructs are extended according to the meta model of Depart- ment of Defense Architecture Framework to improve their domain applicability, the fuzzy modeling mechanism is introduced to model the fuzzy efficiency features of capabilities, and the capability requirement models are converted into ontologies formalized in fuzzy DL so that the model consistency and reasonability can be checked with a DL reasoning system. Finally, a case study of C41SR capability requirements model checking is provided to demonstrate the availability and applicability of the method.展开更多
为了研究管制员的压力产生过程,采取有效措施缓解管制员的压力,首先对管制员压力问题进行分析,通过查阅资料及调研总结出管制员职业特点及其压力源分类及影响,进而基于BODY-LOOP理论采用逻辑建模语言LEADSTO(Language and Environment f...为了研究管制员的压力产生过程,采取有效措施缓解管制员的压力,首先对管制员压力问题进行分析,通过查阅资料及调研总结出管制员职业特点及其压力源分类及影响,进而基于BODY-LOOP理论采用逻辑建模语言LEADSTO(Language and Environment for Analysis of Dynamics by SimulaTiOn)建立压力产生模型;根据所建模型,实现压力产生模型的仿真,揭示动态的复杂过程中各个环节的变化规律。通过形式化分析,提出了在压力产生过程中不同层次之间的逻辑关系,为研究管制员压力提供了理论依据。研究结果表明:与传统方法对比,本方法能对动态系统进行仿真,在时态性和复杂程度上具有一定的优势,及时发现管制员的压力变化过程,为避免因管制员压力而产生不安全事件提供参考依据。展开更多
The process of understanding natural language can be viewed as the process of model construction. This paper? employing Kripke frame for intuitionistic logic semantics as the implement of model construction for natura...The process of understanding natural language can be viewed as the process of model construction. This paper? employing Kripke frame for intuitionistic logic semantics as the implement of model construction for natural language, introduces a method of incremental model construction.展开更多
Fault diagnosis is an important application of the power grids monitoring system. Under the situation of continuous development of smart grid, it brings new challenges to the fault diagnosis technology. A fault diagno...Fault diagnosis is an important application of the power grids monitoring system. Under the situation of continuous development of smart grid, it brings new challenges to the fault diagnosis technology. A fault diagnosis expert system based on model driven approach is proposed in this paper. And the corresponding fault modeling technology based on Fault Logic Description Language (FLDL) is described step by step. Practices show that this system could meet the requirements of processing fault alarm information rapidly and reliably by operator.展开更多
In the paper, original formal-logical conception of syntactic and semantic: intensional and extensional senses of expressions of any language L is outlined. Syntax and bi-level intensional and extensional semantics o...In the paper, original formal-logical conception of syntactic and semantic: intensional and extensional senses of expressions of any language L is outlined. Syntax and bi-level intensional and extensional semantics of language L are characterized categorically: in the spirit of some Husserl's ideas of pure grammar, Le^niewski-Ajukiewicz's theory syntactic/semantic categories and in accordance with Frege's ontological canons, Bochefiski's famous motto--syntax mirrors ontology and some ideas of Suszko: language should be a linguistic scheme of ontological reality and simultaneously a tool of its cognition. In the logical conception of language L, its expressions should satisfy some general conditions of language adequacy. The adequacy ensures their unambiguous syntactic and semantic senses and mutual, syntactic, and semantic compatibility, correspondence guaranteed by the acceptance of a postulate of categorial compatibility syntactic and semantic (extensional and intensional) categories of expressions of L. From this postulate, three principles of compositionality follow: one syntactic and two semantic already known to Frege. They are treated as conditions of homomorphism partial algebra of L into algebraic models of L: syntactic, intensional, and extensional. In the paper, they are applied to some expressions with quantifiers. Language adequacy connected with the logical senses described in the logical conception of language L is, of course, an idealization, but only expressions with high degrees of precision of their senses, after due justification, may become theorems of science.展开更多
跑道侵入是机场场面运行中目前影响飞行安全的重要问题。根据此问题提出了一种跑道侵入风险分析的新方法,采用多agent建模理论,建立本体agent跑道侵入风险分析模型。针对跑道侵入事故中典型的场景,利用基于时态逻辑的LEADSTO(Language a...跑道侵入是机场场面运行中目前影响飞行安全的重要问题。根据此问题提出了一种跑道侵入风险分析的新方法,采用多agent建模理论,建立本体agent跑道侵入风险分析模型。针对跑道侵入事故中典型的场景,利用基于时态逻辑的LEADSTO(Language and Environment for Analysis of Dynamics by Simula Ti On)语言实现了事故发生过程的仿真。实验结果和理论分析说明了时态逻辑建模风险分析方法的有效性。规范飞行员或管制员行为和警觉性可以避免事故发生。与传统方法对比,本方法能对动态系统仿真,在时态性和复杂程度上具有一定的优势。展开更多
针对当前自动测试系统(ATS,Automatic Test System)信息共享和互操作能力差的问题,应用XML(eX lensibleMarkup Language)语言实现了ATS的模型化描述,模型化的信息包括测试设备、接口连接装置ICA(Interface ConnectorAssembly)、测试适...针对当前自动测试系统(ATS,Automatic Test System)信息共享和互操作能力差的问题,应用XML(eX lensibleMarkup Language)语言实现了ATS的模型化描述,模型化的信息包括测试设备、接口连接装置ICA(Interface ConnectorAssembly)、测试适配器和被测设备UUT(UnitUnder Test).对测试设备的性能和UUT测试需求采用统一的信号与测试定义标准STD(signal and test definition)进行描述,实现了测试设备性能与UUT测试需求的自动匹配.通过引入逻辑资源的概念对测试设备性能与仪器通道之间的动态映射关系进行描述,以实现测试过程中仪器资源的合理分配.采用XML作为ATS的建模语言,提高了ATS资源建模的开发效率和系统内信息的互操作程度.展开更多
文摘The capability requirements of the command, control, communication, computing, intelligence, surveillance, reconnaissance (C41SR) systems are full of uncertain and vague information, which makes it difficult to model the C41SR architecture. The paper presents an approach to modeling the capability requirements with the fuzzy unified modeling language (UML) and building domain ontologies with fuzzy description logic (DL). The UML modeling constructs are extended according to the meta model of Depart- ment of Defense Architecture Framework to improve their domain applicability, the fuzzy modeling mechanism is introduced to model the fuzzy efficiency features of capabilities, and the capability requirement models are converted into ontologies formalized in fuzzy DL so that the model consistency and reasonability can be checked with a DL reasoning system. Finally, a case study of C41SR capability requirements model checking is provided to demonstrate the availability and applicability of the method.
文摘为了研究管制员的压力产生过程,采取有效措施缓解管制员的压力,首先对管制员压力问题进行分析,通过查阅资料及调研总结出管制员职业特点及其压力源分类及影响,进而基于BODY-LOOP理论采用逻辑建模语言LEADSTO(Language and Environment for Analysis of Dynamics by SimulaTiOn)建立压力产生模型;根据所建模型,实现压力产生模型的仿真,揭示动态的复杂过程中各个环节的变化规律。通过形式化分析,提出了在压力产生过程中不同层次之间的逻辑关系,为研究管制员压力提供了理论依据。研究结果表明:与传统方法对比,本方法能对动态系统进行仿真,在时态性和复杂程度上具有一定的优势,及时发现管制员的压力变化过程,为避免因管制员压力而产生不安全事件提供参考依据。
基金This paper was supported by the National Natural Science Foundation of China and the National '863' Hi-Tech Programme of China.
文摘The process of understanding natural language can be viewed as the process of model construction. This paper? employing Kripke frame for intuitionistic logic semantics as the implement of model construction for natural language, introduces a method of incremental model construction.
文摘Fault diagnosis is an important application of the power grids monitoring system. Under the situation of continuous development of smart grid, it brings new challenges to the fault diagnosis technology. A fault diagnosis expert system based on model driven approach is proposed in this paper. And the corresponding fault modeling technology based on Fault Logic Description Language (FLDL) is described step by step. Practices show that this system could meet the requirements of processing fault alarm information rapidly and reliably by operator.
文摘In the paper, original formal-logical conception of syntactic and semantic: intensional and extensional senses of expressions of any language L is outlined. Syntax and bi-level intensional and extensional semantics of language L are characterized categorically: in the spirit of some Husserl's ideas of pure grammar, Le^niewski-Ajukiewicz's theory syntactic/semantic categories and in accordance with Frege's ontological canons, Bochefiski's famous motto--syntax mirrors ontology and some ideas of Suszko: language should be a linguistic scheme of ontological reality and simultaneously a tool of its cognition. In the logical conception of language L, its expressions should satisfy some general conditions of language adequacy. The adequacy ensures their unambiguous syntactic and semantic senses and mutual, syntactic, and semantic compatibility, correspondence guaranteed by the acceptance of a postulate of categorial compatibility syntactic and semantic (extensional and intensional) categories of expressions of L. From this postulate, three principles of compositionality follow: one syntactic and two semantic already known to Frege. They are treated as conditions of homomorphism partial algebra of L into algebraic models of L: syntactic, intensional, and extensional. In the paper, they are applied to some expressions with quantifiers. Language adequacy connected with the logical senses described in the logical conception of language L is, of course, an idealization, but only expressions with high degrees of precision of their senses, after due justification, may become theorems of science.
文摘跑道侵入是机场场面运行中目前影响飞行安全的重要问题。根据此问题提出了一种跑道侵入风险分析的新方法,采用多agent建模理论,建立本体agent跑道侵入风险分析模型。针对跑道侵入事故中典型的场景,利用基于时态逻辑的LEADSTO(Language and Environment for Analysis of Dynamics by Simula Ti On)语言实现了事故发生过程的仿真。实验结果和理论分析说明了时态逻辑建模风险分析方法的有效性。规范飞行员或管制员行为和警觉性可以避免事故发生。与传统方法对比,本方法能对动态系统仿真,在时态性和复杂程度上具有一定的优势。
文摘针对当前自动测试系统(ATS,Automatic Test System)信息共享和互操作能力差的问题,应用XML(eX lensibleMarkup Language)语言实现了ATS的模型化描述,模型化的信息包括测试设备、接口连接装置ICA(Interface ConnectorAssembly)、测试适配器和被测设备UUT(UnitUnder Test).对测试设备的性能和UUT测试需求采用统一的信号与测试定义标准STD(signal and test definition)进行描述,实现了测试设备性能与UUT测试需求的自动匹配.通过引入逻辑资源的概念对测试设备性能与仪器通道之间的动态映射关系进行描述,以实现测试过程中仪器资源的合理分配.采用XML作为ATS的建模语言,提高了ATS资源建模的开发效率和系统内信息的互操作程度.