Vivek Chaudhary

About Vivek Chaudhary

I am a decision science consultant. My research interests lie in Machine Learning and Combinatorial Optimization.

Experience

1. Consultant

   Fractal

   Feb 2022 — Present · Mumbai, IN

   Modelling KPIs for a consumer packaged goods company | R, SQL• Conducted business discovery sessions to identify relationships between different KPIs.• Analyzed client data for completeness and quality.• Performed principal component analysis to select features for SKU clustering• Applied K-means clustering to identify similar SKUs• Modeled fill rates for each cluster using copulas• Generated fill rate simulations for each cluster using Markov Chain Monte Carlo methods• Evaluated alternative modeling approaches including Generalized Additive Models andBayesian Belief Networks for fill rate prediction• Modelling demand for a consumer packaged goods company | Python, PySpark, SQL• Analyzed client data for completeness and quality, and applied data imputation logic / data transformations when required.• Developed a bounded linear regression model to decompose sales time series into promotional and non-promotional components• Conducted lag analysis using mutual information, Granger causality, and Pearson correlation to map sales patterns to shipment time series• Engineered lagged and rolling features for multivariate demand forecasting• Implemented and optimized an XGBoost-based demand forecasting model

Education

• SRMIST, Kattankulathur, Chennai ,Tamil Nadu

  Bachelor of Technology - BTech, Civil Engineering

• Symbiosis Institute of Business Management, Pune

  Master of Business Administration - MBA, Operations