Chahak Sethi Email & Phone Number

California, United States

Burbank, California, Us

Burbank, California, Us

Minneapolis, Mn, Us

• Developed a content-based bundle recommender system for ingredients and kitchen gadgets based on user’s recipe choices using NLP and PyTorch• Built a custom Named Entity Recognition model using Spacy to identify kitchen gadgets and cooking methods• Achieved the mean average precision of 0.95 for top-3 recommended products using BERT word-embeddings for text similarity and ranked matches using Multi-Layer Cross Encoder ranking algorithm

London, England, Gb

• Managed and mentored a team of 4 delivering logistic regression models to improve the portfolio management and reduce losses by 16% for the largest Personal Loans portfolio of the bank• Developed regulatory models to predict Probability of Defaults(PD) and Loss Given Default(LGD) using tree-based algorithms to keep the expected credit losses within 20% of the threshold

London, England, Gb

• Developed a XGBoost model to increase application fraud detection by 19% and reduce false positives by 68%• Implemented an underwriting model using Boosted Trees and credit bureau data to increase card users by 14% • Devised a debt recovery strategy using decision tree-based profiling and increased recoveries by 28%• Built revenue-attrition models using Gradient Boosted Regression & Logistic Regression to cut churn rate by 23%

Bozeman, Montana, Us

• Developed a customer level credit default prediction ensemble model using Generalized Additive Models (GAM) to increase early risk detection rate by 26%• Optimized origination risk-return tradeoff for Small Business Loans by evaluating segmentation schemes using random forests & GAM respectively• Streamlined data processing pipeline in Python & SQL to accelerate daily tasks for a 56-member team

Noida, Uttar Pradesh, In

• Conducted exhaustive secondary research through databases, secondary sources, and annual reports• Extracted reports, presentations, and papers from trustworthy sources by using advanced research functionalities to build a logical solution. • Provided analysis on various companies including corporate strategies and competitive positioning, financials, etc.

Learned basics of equity trading through classroom training and observed live trading in the trading room.

Master Of Science - Ms, Data Science

Master'S Degree, Economics

Bachelor Of Arts (B.A.), Economics