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首页> 外文期刊>Journal of computer information systems >SHOULD RULE-BASED REASONING BE ENHANCED BY CASE-BASED REASONING FOR CONCEPTUAL DATABASE DESIGN? A THEORY AND AN EXPERIMENT
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SHOULD RULE-BASED REASONING BE ENHANCED BY CASE-BASED REASONING FOR CONCEPTUAL DATABASE DESIGN? A THEORY AND AN EXPERIMENT

机译：概念数据库设计中基于案例的推理应该增强基于规则的推理吗？理论与实验

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摘要

Traditional knowledge-based systems, such as expert systems, are rule-based. Inference rules are used for representing procedural knowledge. Some recent studies have suggested, and some have even provided evidence, that when knowledge-based systems are endowed with combined powers of multiple reasoning paradigms, the resulting systems will be more effective than when a single paradigm is deployed for the same domain of problems. We set out to test this claim within the conceptual database design domain by comparing rule-based paradigm to one that combines rule- and case-based reasoning. Case-based reasoning is an inference paradigm in which a problem is solved via the retrieval of a closely related past case and the adaptation of this past solution to become the solution for the present problem. A depository of past cases represents a rich body of knowledge. We theorized that the combination of both will be more effective than relying on rules alone. To test this theory, we created two systems. The first was based on pure rule-based reasoning (RBR). The second was created by adding case-based reasoning (CBR) to the first. We compared the effectiveness of the two systems. The results were mixed. The two did not differ from each other in their degree of effectiveness. However, subjects' single-choice preference was for the CBR system.
机译：传统的基于知识的系统（例如专家系统）是基于规则的。推理规则用于表示过程知识。最近的一些研究表明，甚至一些证据已经表明，当基于知识的系统被赋予多种推理范式的综合能力时，所产生的系统将比针对同一领域的问题部署单个范式更为有效。我们着手通过将基于规则的范式与结合了基于规则和案例的推理相结合的方法，在概念数据库设计领域内对此主张进行测试。基于案例的推理是一种推论范式，其中，通过检索密切相关的过去案例并将该过去解决方案改编为当前问题的解决方案来解决问题。过去的案例库代表着丰富的知识体系。我们的理论是，将两者结合起来比单独依赖规则更为有效。为了验证该理论，我们创建了两个系统。首先是基于纯规则推理（RBR）。第二个是通过在第一个中添加基于案例的推理（CBR）来创建的。我们比较了两个系统的有效性。结果好坏参半。两者的有效性程度互不相同。但是，受试者的单项选择偏爱于CBR系统。

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