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In data cleaning, detecting approximately duplicate records in data warehouse is an important task. However, due to the wide range of possible data inconsistencies and the sheer data volume, determining whether two records are equal is not a simple arithmetic predicate. This paper proposes an improved algorithm of approximately duplicate records cleaning based on attributes selection after analyzing...
In order to rapidly diagnose and locate the fault, we present ICARSFD (information entropy-based clustering algorithm for rapid software fault diagnosis). In this paper, the average entropy and the total entropy are defined to guide the clustering operation over fault modes. This algorithm firstly stores the related information of existing faults in the form of fault tree, and deems each fault as...
As the present power system planning can hardly take economy and reliability into account, an improved Pareto ant colony algorithm (IPACA) is proposed in this paper. An improved quick sort method is applied to construct Pareto optimal solution set, thereby the slow-chain is shorten and the time complexity is reduced. Clustering analysis has been used to improve the diversity and distributivity of...
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