Automatic construction and refinement of a class hierarchy over semistructured data
作者： Nathalie Pernelle , Marie-Christine Rousset , Veronique Ventos
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摘要: In many applications, it becomes crucial to help users access a huge amount of data by clustering them in small number classes described at an appropriate level abstraction. this paper, we present approach based on the use two languages description for automatic semistructured data. The rst language has high power abstraction and guides construction lattice covering whole set second classes, more expressive precise, is basis re nement part that user wants focus on. Our been implemented experimented real setting GAEL project 1 which aims building exible electronic catalogs organized as hierarchy products. experiments have conducted coming from C/Net (http://www.cnet.com) catalog computer
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