How to Create Cryptocurrency Price Charts with Color Overlay
The recent rise in the price of Bitcoin and other cryptocurrencies has also led to increased interest in visualizing price trends. In particular, price charts that use color as an overlay have a particular appeal. Such colorful price charts not … Continued
Streaming Tweets and Images via the Twitter API v2
Social media is an exciting playground for data science, and one of the most interesting sources of social media is certainly Twitter. Every minute, thousands of tweets are posted on Twitter. Twitter discussions revolve around a variety of topics, from … Continued
Getting started with Image Recognition: Classifying Cats and Dogs
This article kicks off a new blog series on image recognition and classification with Convolutional Neural Networks (CNNs). CNNs belong to the field of deep learning, a subarea of machine learning, and have become a cornerstone to many exciting innovations … Continued
Anyone About to Leave? Predicting Customer Churn of a Telecommunications Provider
Telecommunications service providers face considerable pressure to expand and retain their subscriber base. One of the biggest cost factors are customers cancelling their contracts. Innovative service providers therefore have learned to use machine learning to predict which of their customers … Continued
Hyperparameter Tuning with Grid Search at the Example of a Random Forest Classifier with Python
The functionality of machine learning models can be controlled with their hyperparameters. The choice of these parameters often has a significant impact on model performance and, in practice, can make the difference between sufficient and outstanding performance. Data scientists therefore … Continued
Feature Engineering for Multivariate Time Series Prediction with Python
Multivariate time series predictions and especially stock market forecasts pose challenging machine learning problems. Unlike univariate forecasting models, multivariate models do not rely exclusively on historical time series data, but use additional functions that are often developed from the time … Continued