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Vikash Choudhary is a Senior Data Scientist at Sigmoid since January 2022, where a significant achievement includes revamping a timeseries forecasting model with 1.5 million parameters, resulting in a 45% improvement in overall MAPE and a 35% reduction in SSE. Previous roles at Sigmoid include Data Scientist and Associate Data Scientist, during which Vikash developed a data science solution leveraging machine learning, statistics, and bandit algorithms for campaign optimization, achieving a 200% increase in ROAS and a 40% growth in combined sales. The solution was scaled for the North American market, boosting average ROAS by 150% and increasing average combined sales by 30%. Vikash's early experience includes a Data Science internship at Project Parwaaz and volunteer leadership as President of the Cultural Committee at the Indian Institute of Information Technology Vadodara. Educational qualifications include a Bachelor of Technology in Computer Science from the Indian Institute of Information Technology Vadodara and a high school education focused on Mathematics and Science.