Data Science

Seasonal Adjustment of Daily Time Series

Introducing the novel DSA procedure by the German Central Bank.

Ideology Classification of U.S. News through Sentiment

Exposing the partisanship of news providers.

U.S. News

I gathered U.S. news articles through web scraping and conducted sentiment, topic, and regression analyses in this repository.

What Pete Buttigieg Has to Say About Data-Driven Decision Making

Former democratic presidential candidate and “Tech-Mayor” firmly believes in data and analysis.

How to Increase the Interpretability of Your Predictive Model

Practical insights from a business perspective.

How 190 Students and I Have Learned Data Science

Actionable strategies on how to learn to code.

How to Collect Data for Your Analysis

Hint: Using a Kaggle data set might not be sufficient.

Getting to a Hyperparameter-Tuned XGBoost Model in No Time

How to fine-tune your first XGBoost model in R with random search.

Boosting Gradient Boosting Interpretability

I predicted and interpreted cross-selling purchase probabilities using XGBoost and SHAP values in R.