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普适计算中一种上下文集成方法
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作者 刘莉 黄海平 +1 位作者 王汝传 蔡启旺 《计算机技术与发展》 2012年第6期130-134,155,共6页
普适计算作为一种全新的计算模式,目的是根据用户需要提供随时随地的服务。普适计算环境中存在大量异构的数据源,不利于上下文信息的处理和访问。文中提出了一种基于XML的上下文集成方法,在保证上下文精度和新鲜度的条件下,尽量减少上... 普适计算作为一种全新的计算模式,目的是根据用户需要提供随时随地的服务。普适计算环境中存在大量异构的数据源,不利于上下文信息的处理和访问。文中提出了一种基于XML的上下文集成方法,在保证上下文精度和新鲜度的条件下,尽量减少上下文信息存储量,并向上提供统一的上下文表达形式,有效屏蔽了上下文信息的异构。实验测试表明,采用的文件内存保留和分片转存方法,进一步加快上下文的集成,从而有效地支持普适服务。 展开更多
关键词 普适计算 上下文 可扩展标记语言 上下文集成
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Context-driven reconciliation in ontology integration
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作者 李玲 唐胜群 +4 位作者 肖如良 房丽娜 邓新国 徐有威 徐杨 《Journal of Southeast University(English Edition)》 EI CAS 2007年第3期365-368,共4页
In order to solve the semantic irreconcilable problems caused by contextual differences during the process of ontology integration, a context-driven reconciliation mechanism is proposed. The mechanism is based on the ... In order to solve the semantic irreconcilable problems caused by contextual differences during the process of ontology integration, a context-driven reconciliation mechanism is proposed. The mechanism is based on the previous work about a context-based formalism-Context-SHOIQ (D + ) DL, which is used for explicitly representing context of ontology by adopting the description logic and the category theory. The formalism is extended by adding four migration rules (InclusionRule, SelectionRule, PreferenceRule, and MappingRule), that are used to specify what should be imported into the IntegrativeContext, and three related contextual integration operations of increasing interoperability (import, partial reconciliation, and full reconciliation). While not exhaustive, the mechanism is sufficient for solving the five types of semantic irreconcilable problems that are discussed, and favors integration of ontologies from one context to another. 展开更多
关键词 semantic web CONTEXT RECONCILIATION ontology integration migration rules
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The Significance of Horizon in Scientific Cognitive Activities
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作者 Liu Xin Wang Qian Wang Huili 《Journal of Philosophy Study》 2018年第4期169-177,共9页
The hermeneutic concept of horizon contributes to the philosophical understanding of scientific cognition. In the context of scientific cognitive practices, the concept of horizon provides a way of understanding the d... The hermeneutic concept of horizon contributes to the philosophical understanding of scientific cognition. In the context of scientific cognitive practices, the concept of horizon provides a way of understanding the distinctive characteristics of scientific observation and knowing. Horizon is a key factor that facilitates the cognitive subject to select objects and their backgrounds. In order to make new accomplishment in scientific discoveries, it is essential to broaden the horizon and intzoduce new cognitive instrumentalities and methods. This requires people to be adept at finding out the limitations of their thinking and overcome them consciously. Conscious horizon expansion is essential to the integration of intuition and logical thinking process in scientific cognitive activities, as well as to the establishment of the essential connection/relation between different disciplines and research fields, prompting inter-disciplinary communication and producing methods of thinking. This article is an attempt to explore the significance of horizon for scientific cognition. As we will show, by integrating intuitive thinking and logical thinking through the expansion of horizon, a new cognitive model will be provided. 展开更多
关键词 HORIZON scientific cognition INTUITION logic
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