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Discovering functional dependencies (FDs) from existing databases is important to knowledge discovery, machine learning and data quality assessment. A number of algorithms have been proposed in the literature. In this paper, we review and compare these algorithms to identify their advantages and differences. We then propose a simple but time and space efficient hash-based algorithm for FD discovery...
There is higher vegetation cover in southern China, So, the smaller altered target, the smaller scale remote sensing data and other negative factors affect the mapping precision of clay alteration minerals. However, the clay alteration is closely re elated to the uranium mineralization. To extract the clay alteration information in vegetation coverage, The paper chooses the uranium ore field of Tao...
Effective and efficient navigation and representation of the entire structure of the product catalog is one of the important factors for on-line market. This paper proposes an application using Treemaps visualization to enhance the functionality of online product category. We aim to develop high-quality catalog interfaces in terms of readability, understandability and comprehension by integrating...
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