Visualization

How to make a Economist like chart in R

I am a big fan of Economist and Spectator magazine, because both magazines write about politics, culture, and current affairs with their own point of view. They also have amazing charts in almost every single publication. That’s why I wish to share with you, how the creation of such chart is made. The idea is derived from iq.harvard.edu and if you wish to learn and explore, definitely go there.  In this blog post, I want to replicate the chart Read more…

By lukaloncar, ago
Image Recognition

Image recognition with KERAS and LIME

Keras is an open source neural network library written in Python. It is capable of running on top of TensorFlow, Microsoft Cognitive Toolkit or Theano. In this particular project, I’ll use it with R since Keras is also available in R for quite some time. Besides Keras package, I’ll incorporate LIME package that allows the user to pry open black box machine learning models and explain their outcomes on a per-observation basis. LIME can be as Read more…

By lukaloncar, ago
R

Predicting wine quality based on physicochemical data

Overview Of The Project The goal of this blog post is to show you what is my thought process behind building a classification based model. In the first part of the project I’ll start with Initial Data Analysis (IDA) and afterwards in second part, I’ll proceed with Exploratory Data Analysis (EDA). Based on the findings in EDA, I’ll create new features that provide potentially a better results based on performance metric. About The Data The Read more…

By lukaloncar, ago
Supervised Machine Learning

Template for Supervised Machine Learning

These questions and suggestions are made to guide the process of data exploration. Also note, that these questions deal with: feature engineering, data management, transforming, preprocessing, describing the characteristics of features both qualitatively and visually. This list is something that I have been building for more over one year and I have to say, that it saves a lot of time, because quite many times during the modeling stage you are preforming similar tasks. On Read more…

By lukaloncar, ago