June 2009
Beginner to intermediate
428 pages
9h 48m
German
Content preview from Data Mining mit Microsoft SQL Server
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A.3. Microsoft Decision Trees-Algorithmus
Der Microsoft Decision Trees-Algorithmusunterteilt die vorherrschende Datenmenge nach jenem Attribut, welches zum Vorhersagen des gewünschten Attributs am geeignetsten scheint. Jedes dieser Teile wird solange rekursiv nach demselben Prinzip wiederum unterteilt, bis eine weitere Unterteilung nicht mehr möglich ist. Jene Parameter, mit welchen auf diesen Prozess Einfluss genommen werden kann, werden nachfolgend beschrieben.
A.3.1. COMPLEXITY_PENALTY
Steuert das Anwachsen der Entscheidungsstruktur. Ein niedriger Wert führt zu einer größeren Anzahl von Teilungen, und ein hoher Wert führt zu einer niedrigeren Anzahl von Teilungen. Der Standardwert richtet sich nach der Anzahl von Attributen in einem bestimmten ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.