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Database Mining. Propositionalization for Knowledge Discovery in Relational Databases

Name: Database Mining. Propositionalization for Knowledge Discovery in Relational Databases
Brand: VDM Verlag Dr. Mueller E.K.
SKU: 06811418
Price: 31378 HUF
Availability: InStock
Author: Mark-André Krogel
ISBN: 9783639014198

Mark-André Krogel

Language

English

Book Paperback

Libristo code: 06811418

Publishers VDM Verlag Dr. Mueller E.K., May 2008

Propositionalization is a process that leads from relationaldata and background knowledge to a singl... Full description

Libristo code: 06811418

214 b

31 378 Ft

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Propositionalization is a process that leads from relationaldata and background knowledge to a single-table representationthereof, 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. Withinour 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 financialones, in order to demonstrate the broad applicability of propositionalization.