Context in information bases
Context in information bases
复制标题
信息库中的上下文
DOI：
10.1109/coopis.1998.706226
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
N. Spyratos
中科院分区：
文献类型：
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作者：
Manos Theodorakis;A. Analyti;P. Constantopoulos;N. Spyratos
虽然语义数据模型提供了表达性的概念建模机制，但它们不支持上下文，即通过从不同的视角或在不同的情况下查看概念实体来提供关于概念实体的受控部分信息。作者提出了一个模型，用于表示上下文的信息库沿着与一组操作上下文。这些操作支持创建、更新、组合和比较上下文。该模型有助于有效处理信息，特别是在分布式、协作环境中，因为它能够（i）表示（可能重叠）信息库的分区;（ii）对象的部分表示，（iii）灵活的命名（例如相对名称、同义词和同形异义词），（iv）集中注意力，以及（v）组合和比较不同的部分表示。工作进展的发展，旨在澄清几个理论和实践问题的背景下的概念的正式框架。通过一个详细的例子说明了上下文在协作环境中的使用。
Although semantic data models provide expressive conceptual modeling mechanisms, they do not support context, i.e. providing controlled partial information on conceptual entities by viewing them from different viewpoints or in different situations. The authors present a model for representing contexts in information bases along with a set of operations for manipulating contexts. These operations support creating, updating, combining, and comparing contexts. The model contributes to the efficient handling of information, especially in distributed, cooperative environments, as it enables (i) representing (possibly overlapping) partitions of an information base; (ii) partial representations of objects, (iii) flexible naming (e.g. relative names, synonyms and homonyms), (iv) focusing attention, and (v) combining and comparing different partial representations. The work advances towards the development of a formal framework intended to clarify several theoretical and practical issues related to the notion of context. The use of context in a cooperative environment is illustrated through a detailed example.