April 2018
Intermediate to advanced
184 pages
3h 51m
German
Content preview from Machine Learning – kurz & gutBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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KAPITEL 6
Modellvalidierung
In den beiden vorigen Kapiteln hast du gesehen, wie man mithilfe von Regularisierung, Reduzierung der Modellkomplexität und Feature-Reduzierung Overfitting vermeiden kann. In diesem Kapitel lernst du Methoden kennen, mit denen du Underfitting und Over-fitting erkennen und somit die optimalen Parameter deines Modells abschätzen kannst. Die Grundlage dafür ist eine Evaluierung deines Modells nach möglichst objektiven Maßstäben.
Dafür gibt es je nach Problemstellung und Anwendung verschiedene Methoden, d.h. verschiedene Berechnungsvorschriften, die auch Metriken genannt werden. Der Wert, den ein bestimmtes Modell aufgrund der benutzten Metrik bekommt, nennen wir Score. Meistens ist die Metrik so konstruiert, dass der ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.