Global Action Rules in Distributed Knowledge Systems
Global Action Rules in Distributed Knowledge Systems
复制标题
分布式知识系统中的全局行动规则
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Shishir Gupta
中科院分区：
文献类型：
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作者：
Z. Ras;Shishir Gupta
在文献[4，5]中，介绍并研究了基于分布式知识挖掘的问答系统。在Ras和Wieczorkowska的论文[3]中，引入了行动规则的概念，并将其应用于电子商务领域。在本文中，我们以类似于[4，5]中处理全局查询的方式推广了动作规则的概念。主要地，当用于动作规则的给定客户的属性值不能被业务用户容易地改变时，这些属性的定义从分布式知识系统的其他站点提取。更准确地说，将分布式知识系统中每个站点的属性分为两个集合：稳定的和灵活的。对于给定的消费者，灵活属性的值有时可以改变，并且这种改变可以由业务用户影响和控制。但是，其中一些更改(例如，对属性“利润”的更改)不能直接对所选属性进行。在这种情况下，必须学习根据其他属性对这种属性的定义。这些新定义用于构建操作规则，以显示需要对给定消费者的灵活属性值进行哪些更改，以便按照业务用户所需的方式对该消费者进行重新分类。但是，业务用户可能无法或不愿意继续执行导致此类更改的操作。在所有这些情况下，我们可以搜索这些灵活属性的定义，在本地或远程站点寻求帮助。
In papers [4,5], query answering system based on distributed knowledge mining was introduced and investigated. In paper by Ras and Wieczorkowska [3], the notion of an action rule was introduced and for its application domain e-business was taken. In this paper, we generalize the notion of action rules in a similar way to handling global queries in [4,5]. Mainly, when values of attributes for a given customer, used in action rules, can not be easily changed by business user, definitions of these attributes are extracted from other sites of a distributed knowledge system. To be more precise, attributes at every site of a distributed knowledge system are divided into two sets: stable and flexible. Values of flexible attributes, for a given consumer, sometime can be changed and this change can be influenced and controlled by a business user. However, some of these changes (for instance to the attribute ``profit'') can not be done directly to a chosen attribute. In this case, definitions of such an attribute in terms of other attributes have to be learned. These new definitions are used to construct action rules showing what changes in values of flexible attributes, for a given consumer, are needed in order to re-classify this consumer the way business user wants. But, business user may be either unable or unwilling to proceed with actions leading to such changes. In all such cases we may search for definitions of these flexible attributes looking at either local or remote sites for help.