July 2020
Intermediate to advanced
852 pages
25h 44m
German
book
Praxiseinstieg Machine Learning mit Scikit-Learn, Keras und TensorFlow, 2nd Edition
by Aurélien Géron
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KAPITEL 7
Ensemble Learning und Random Forests
Nehmen wir einmal an, Sie würden Tausenden zufällig ausgewählten Menschen eine komplexe Frage stellen und dann deren Antworten zusammenfassen. In vielen Fällen ist diese gesammelte Antwort der eines Experten überlegen. Dies bezeichnet man als Schwarmintelligenz. Wenn Sie analog dazu die Vorhersagen einer Gruppe Prädiktoren (z.B. Klassifikatoren oder Regressoren) zusammenfassen, erhalten Sie oft bessere Vorhersagen als mit dem besten einzelnen Vorhersagemodell. Eine solche Gruppe Prädiktoren nennt man auch ein Ensemble; daher bezeichnet man diese Technik als Ensemble Learning und einen Algorithmus zum Ensemble Learning als Ensemble-Methode.
Als Beispiel für eine Ensemble-Methode können Sie eine Gruppe ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.