M Aravind Babu

Experience

1. Senior Data Scientist

   Walmart

   Sep 2022 — Present

   Conducted comprehensive statistical analysis of seller performance metrics, identifying key performance indicators and developing predictive models to forecast seller success and marketplace trends. • Built advanced classification models using ensemble methods (Random Forest, XGBoost, Gradient Boosting) to predict seller churn with 92% accuracy and developed retention strategies based on statistical insights. • Performed extensive exploratory data analysis (EDA) on large-scale marketplace datasets (>50TB) using Python, Pandas, and statistical visualization techniques to uncover business insights. • Developed time series forecasting models using ARIMA, Prophet, and LSTM networks to predict seasonal demand patterns and optimize inventory management strategies. • Implemented A/B testing frameworks and statistical hypothesis testing to measure the impact of marketplace policy changes and seller intervention strategies. • Created sophisticated anomaly detection algorithms using statistical methods (Z-score, IQR) and machine learning approaches (Isolation Forest, One-Class SVM) for fraud detection. • Built recommendation systems using collaborative filtering and matrix factorization techniques to optimize seller-product matching and improve marketplace efficiency. • Conducted causal inference analysis using propensity score matching and difference-in-differences methods to measure the impact of seller programs on business outcomes. • Developed customer segmentation models using k-means clustering, hierarchical clustering, and Gaussian mixture models to identify distinct seller behavior patterns. • Created comprehensive statistical dashboards using Tableau and Python-based visualization libraries to communicate analytical findings to executive stakeholders. • Performed feature selection and engineering using statistical techniques (correlation analysis, mutual information, PCA) to optimize model performance and interpretability.

Education

• KL University

  Bachelor of Technology - BTech