E-Commerce Review Process

• Process Brazilian E-Commerce Public Dataset by Olist (https://www.kaggle.com/datasets/olistbr/brazilian-ecommerce) • Conduct Sentiment analysis using regular expression to clean the data, Calculate TF-IDF to conduct NLP and topic modeling and use machine learning model to predict the positive or negative review • Develop a recommendation system which input a customer number then output the most fitted product and optimize it to reduce RMSE from 4.32 to 0.595