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Database Mining Propositionalization for Knowledge Discovery in Relational Databases - Mark-André Krogel

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2008-01-01
103,55 € 147,93 €

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Propositionalization is a process that leads from relational data and background knowledge to a single-table representation thereof, which serves as the input to widespread systems for knowledge discovery in databases. Systems for propositionalization thus support the analyst during the usually costly phase of data preparation for data mining. We present a framework that allows for a unified description of ... Täielik kirjeldus

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Kirjeldus

Propositionalization is a process that leads from relational data and background knowledge to a single-table representation thereof, which serves as the input to widespread systems for knowledge discovery in databases. Systems for propositionalization thus support the analyst during the usually costly phase of data preparation for data mining. We present a framework that allows for a unified description of approaches to propositionalization. Within our framework, we systematically enhance existing approaches with techniques well-known in the area of relational databases, especially the application of aggregate functions. Further, we suggest special database schema transformations for efficiency reasons. We put special emphasis on empirical investigations into the spectrum of approaches. Data set sizes vary across different orders of magnitude, up to several million data points. Also, the domains are diverse, ranging from biological data sets to financial ones, in order to demonstrate the broad applicability of propositionalization.

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Autor Mark-André Krogel
Kirjastaja KS Omniscriptum Publishing
Väljalaskeaasta 2008
Kaanetüüp Pehme kaanega
EAN 9783639014198
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103,55 € 147,93 €