update week 44

doc/src/week44/week44.do.txt

@@ -20,6 +20,18 @@ o Decision Trees: Geron's chapter 6 covers decision trees while ensemble models,
 o Clustering and PCA, see Geron's chapter 8 and "Lecture notes":"https://compphysics.github.io/MachineLearning/doc/LectureNotes/_build/html/chapter8.html"
 !eblock
 
+!split
+===== Digression First =====
+
+For those of you interested in the fast growing areas of applications of Machine Learning, this article about "Applications and techniques for fast machine learning in science":"https://arxiv.org/abs/2110.13041"  may be interesting.
+
+It has several interesting perspectives and highly interesting
+applications that link scientific discoveries with efficient software
+and hardware. The emphasis is onintegrating power Machine Learning
+methods into the real-time experimental data processing loop to
+accelerate scientific discovery.
+
+
 !split
 ===== Thursday, Principal Component Analysis  =====