Olga Gaffarova
Data Explorer
Data-driven problem solver with experience in creative production, social media, TV ads, and interactive events. Combines stakeholder management and Python skills to uncover inefficiencies and deliver actionable solutions, with Tableau visualizations and Streamlit dashboards.
Portfolio
University Rankings Indicators Analysis
It is easy to assume that the best universities are simply those with the highest rankings at the very top of the QS list. However, not everyone can realistically enroll in the top 10 due to high competition and cost. This project is motivated by the idea that high-quality education can also be found beyond the top tier when you know what metrics to review.
New York City Bike-sharing system Analysis
Bike-sharing systems like CitiBike often face uneven bike distribution. This project explores how the Pareto principle can help predict and optimize bike rebalancing by identifying the stations that drive most supply–demand imbalances. By analyzing net bike flow, I aimed to build a simple predictive strategy to improve availability and reduce operational inefficiencies.
Influenza Planning in the United States
This project analyzes CDC mortality data from 2009–2017 to identify when and where demand is likely to peak. By evaluating both total deaths and per-capita mortality rates, I pinpointed high-priority states and recommended a phased regional deployment strategy aligned with seasonal flu patterns. The findings were visualized in a Tableau storyboard.