Alexandra Dubrova

Providing mathematics and statistics tutoring to high-school and university students across various levels and curricula. Achieved an all-time rating of 5.0 from over 1,000 student reviews and supported 2,000+ clients from 100+ universities worldwide.

Master Thesis – Optimization Algorithms • PADM algorithms for bilevel optimization (Supply Chain). • A toll optimization test scenario (4,200 instances), solution outperformed Gurobi (speed/memory usage). • Student Assistant: mentored 150+ students. Research Project – NLP Sentiment Model • Engineered a sentiment model (outperformed standard methods by 1.5% in accuracy). • A scalable pipeline (Pandas/NumPy) to process 80k+ reviews. • Math analysis of Optimal Transport algorithms (Sinkhorn, Greenkhorn).

• Participated in workshops organized by leading companies and universities (including EY and Google) focused on Data, ML, and Analytics with expert talks, team-based case studies, light coding, and group presentations. • Completed an intensive German course and achieved B1 proficiency level.

Coursework 1: Performance Analysis on the Global Market • Analyzed global sales data (APAC, EU, Africa, LATAM, USA). • Built 5 interactive Tableau dashboards. • Identified pricing inefficiencies in APAC/Africa, optimizing discount strategy. Coursework 2: Statistical Modeling for Segmentation, Prediction & Optimization • Performed customer segmentation via PCA & K-means. • Engineered predictive models (Lasso/Ridge) achieving RMSE 2.69. • Delivered a GLM bank model (90% accuracy) & validated via 10-fold CV.