June 2009
Beginner to intermediate
428 pages
9h 48m
German
Content preview from Data Mining mit Microsoft SQL Server
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3.2. Handhabung von Attributen
Dieser Abschnitt zeigt einige Überlegungen zur Vorbereitung von Attributen auf. Dabei wird auf die Möglichkeit des Auswählens, Erzeugens und Diskretisierens von Einträgen eingegangen.
3.2.1. Auswählen und Erzeugen von Attributen
Nicht alle Attribute sind für Miningverfahren gleich wichtig. Der Name oder die ID eines Kunden wird zum Beispiel keinen Einfluss darauf nehmen, ob dieser ein bestimmtes Produkt kaufen wird. Darüber hinaus wird die Leistung des zu erzeugenden Miningmodells auch nicht steigen, wenn neben einem Attribut, welches die Ausbildung eines Kunden widerspiegelt, auch ein weiteres Attribut, welches die selbe Information in einer anderen Sprache beinhaltet, in die Analyse einbezogen wird.
SQL Server ...
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