Tools & Languages Archives - Open Data Science - Your News Source for AI, Machine Learning & more

Image Compression In 10 Lines of R Code

Modeling R Tools & Languages image compressingposted by Leihua Ye December 9, 2019

Principal Component Analysis (PCA) is a powerful Machine Learning tool. As an unsupervised learning technique, it excels in dimension reduction and feature extraction However, do you know we can use PCA to compress images? In this post, I’ll walk through the process and explain how PCA can compress images... Read more

A Quick Look Into Bootstrapping

Machine Learning Modeling R Statistics Tools & Languages bootstrapping Statisticsposted by Leihua Ye December 3, 2019

Executive Summary As a resampling method, bootstrapping allows us to generate statistical inferences about the population from a single sample. Learn to bootstrap in R. Bootstrapping lies the foundation for several machine learning methods (e.g., Bagging. I’ll explain Bagging in a follow-up post). [Related Article: Discovering 135 Nights of... Read more

Implementing a Kernel Principal Component Analysis in Python

Modeling Python Tools & Languages principal component analysisposted by ODSC Community November 26, 2019

In this article, we discuss implementing a kernel Principal Component Analysis in Python, with a few examples. Many machine learning algorithms make assumptions about the linear separability of the input data. The perceptron even requires perfectly linearly separable training data to converge. Other algorithms that we have covered so... Read more

XGBoost is Machine Learning’s Captain America

Machine Learning Modeling Tools & Languages XGBoostposted by Jacey Heuer November 25, 2019

Captain America is great in many ways. He is not necessarily the strongest, nor the fastest. He cannot fly or shoot anything our his hands. However, he is a consistent leader, that is well understood, admired and very effective. Also, when needed he can even wield Thor’s hammer. So,... Read more

Are You Ready to Lead a Data Science Project?

Career Insights Tools & Languages Workflow Data Science Projectsposted by ODSC Community November 21, 2019

What is the problem that is compelling you to solve using data science? The power in data and the mechanisms to harness this power is now available to us. Identifying the right problem or use case is the first step. There are multiple use cases across the industry being... Read more

Web Scraping News Articles in Python

Machine Learning Modeling Python Tools & Languages NLP Pythonposted by Miguel Fernández Zafra November 20, 2019

This article is the second of a series in which I will cover the whole process of developing a machine learning project. If you have not read the first one, I strongly encourage you to do it here. The project involves the creation of a real-time web application that gathers data from several newspapers... Read more

Balancing Interpretability and Predictive Power with Cubist Models in R

Machine Learning Modeling R Tools & Languages Cubist Modelsposted by Jacey Heuer November 18, 2019

Machine learning models are powerful tools that do well in their purpose of prediction. In many business applications, the power of these models is quite beneficial. With any application of a machine learning model, the process to choosing which model involves determining the model that performs best across a... Read more

Local Regression in Python

Data Visualization Modeling Python Tools & Languages Data Visualization logical regression Pythonposted by Allen Downey November 15, 2019

I love data visualization make-overs (like this one I wrote a few months ago), but sometimes the tone can be too negative (like this one I wrote a few months ago). Sarah Leo, a data journalist at The Economist, has found the perfect solution: re-making your own visualizations. Here’s her tweet.... Read more

5 Steps to Implementing a Data Literacy-Driven DataOps Framework

Accelerate AI DataOps Tools & Languages DataOpsposted by ODSC Community November 12, 2019

DataOps is a new framework that has been gathering greater attention in the past year since it first appeared on the Gartner Hype Cycle. DataOps is defined as a new way of thinking related to data which encompasses people, processes, and technology, resulting in improved collaboration and streamlined decision-making... Read more

Text Classification in Python

Modeling NLP/Text Analytics Python Tools & Languages Text Classificationposted by Miguel Fernández Zafra November 12, 2019

This article is the first of a series in which I will cover the whole process of developing a machine learning project. This one focuses on training a supervised learning text classification model in Python. The motivation behind writing these articles is the following: as a learning data scientist who has... Read more