2021-09-24
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Deep Reinforcement Learning: Using policy-based methods to play Pong from pixels

34 mins read This is a long-overdue blog post on Reinforcement Learning (RL). RL is hot! You may have noticed that computers can […]
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2021-09-17
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Evolution Strategies as a Scalable Alternative to Reinforcement Learning

16 mins read Evolution strategies (ES) is an optimization technique that’s been known for decades, rivals the performance of standard reinforcement learning (RL) techniques on […]
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2021-09-12
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Best storage formats to save Pandas dataframes

6 mins read When working on data analytical projects, I usually use Jupyter notebooks and a great pandas library to process and move my data around. It […]
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2021-09-10
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Double DQN and Dueling DQN in Reinforcement Learning

9 mins read In this article, we will see two algorithms that improve upon DQN. These are named Double DQN and Dueling DQN. But first, let’s […]
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2021-09-09
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SumTree data structure for Prioritized Experience Replay (PER) explained with Python Code

14 mins read Weighted sampling from a list-like collection is an important activity in many applications. Weighted sampling involves selecting samples randomly from […]
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2021-09-06
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Shannon entropy and its properties

25 mins read Suppose you are talking with three patients in the waiting room of a doctor’s office. All three of them have […]
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2021-08-22
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Understanding Attention Mechanism in Sequence 2 Sequence Machine Translation

39 mins read Introduction Recurrent Neural Networks (or more precisely LSTM/GRU) have been found to be very effective in solving complex sequence-related problems […]
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2021-08-07
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Principal Component Analysis (PCA) Explained

14 mins read What is PCA? Let’s say that you want to predict what the gross domestic product (GDP) of the United States will be […]
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2021-08-06
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Understanding basic Trading Terminology

12 mins read This article is written for readers who want to understand the most common phrases and trading terminology that is used […]
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2021-08-06
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What are eigenvectors and eigenvalues?

16 mins read Introduction Eigenvectors and eigenvalues have many important applications in computer vision and machine learning in general. Well-known examples are PCA (Principal […]
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2021-08-06
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Automatic Differentiation Explained

8 mins read Introduction There are several methods to calculate gradients in computer programs: (1) Manual differentiation; (2) Symbolic differentiation; (3) Finite differences […]
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2021-08-03
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How to use black, flake8, isort, and pre-commit framework to format Python codes

12 mins read black: The Uncompromising Code Formatter With black you can format Python code from 2.7 all the way to 3.8 (as of version […]
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2021-08-03
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Understanding Model Calibration and Brier Score

12 mins read Do you ever encounter a storm when the probability of rain in your weather app is below 10%? Well, this […]
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2021-08-01
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Make Python faster using Numba

15 mins read As you may know, python is an interpreted language. This means that python code is not directly compiled to machine […]
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2021-07-30
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ANOVA (Analysis of variance) simply explained

27 mins read Introduction Buying a new product or testing a new technique but not sure how it stacks up against the alternatives? […]
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2021-07-24
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Python Modules and Packages tutorial

45 mins read Modules If you quit the Python interpreter and enter it again, the definitions you have made (functions and variables) are […]
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2021-07-23
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Exponential Distribution and its applications

10 mins read We always start with the “why” instead of going straight to the formulas. If you understand the why, it actually […]
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2021-07-23
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The Poisson Distribution and its applications explained

26 mins read Before setting the parameter λ and plugging it into the formula, let’s pause a second and ask a question. Why […]
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2021-07-21
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Fourier Transform basics and its applications

18 mins read The frequency domain Sound is a mechanical wave, a vibration in the air or another medium. Musical notes correspond to […]
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2021-07-10
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Predicting Customer Churn with Machine Learning: From EDA to Classification

27 mins read Table of Contents Introduction Objective Libraries Parameters and Variables Functions A Quick Look at our Data Creating a Test Set […]
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