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Articles by Adam Stelmaszczyk
[2601.00102] Covariance Matrix Adaptation Evolution Strategy without a matrix
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A Deep Dive into Reinforcement Learning
Let’s take a deep dive into reinforcement learning. In this article, we will tackle a concrete problem with modern libraries such as TensorFlow, TensorBoard, Keras, and OpenAI gym. You will see how to implement one of the fundamental algorithms called deep $Q$-learning to learn its inner workings. Regarding the hardware, the whole code will work on a typical PC and use all found CPU cores (this is handled out of the box by TensorFlow).
Java inner and nested classes
From Oracle's Java Tutorial : A nested class is a member of its enclosing class. Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes do not have access to other members of the enclosing class. As a member of the OuterClass, a nested class can be declared private, public, protected, or package private.
Optimization of a C++ code (that uses UnorderedMap and Vector)
I am trying to optimize some part of a C++ code that is taking a long time (the following part of the code takes about 19 seconds for X amount of data, and I am trying to finish the whole process in less than 5 seconds for the same amount of data - based on some benchmarks that I have). I have a function "add" that I have written and copied the code here. I will try to explain as much as possible that I think is needed to understand the code. Please let me know if I have missed something.
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