diff --git a/doc/src/week44/week44.do.txt b/doc/src/week44/week44.do.txt
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@@ -3,6 +3,17 @@ AUTHOR: Morten Hjorth-Jensen {copyright, 1999-present|CC BY-NC} at Department of
 DATE: today
 
 
+!split
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+* Thursday: Wrapping up PCA and basics of decision trees, classification and regression algorithms 
+* Friday: Decision trees, voting models and bagging
+
+
+Geron's chapter 6 covers decision trees while ensemble models, voting and bagging are discussed in chapter 7. See also lecture from "STK-IN4300, lecture 7":"https://www.uio.no/studier/emner/matnat/math/STK-IN4300/h20/slides/lecture_7.pdf". Chapter 9.2 of Hastie et al contains also a good discussion.
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 !split
 ===== Decision trees, overarching aims  =====