Bishal Ghosh

Master's

Economics

Finance

Computer Science

Visa

Systems Analyst Intern, Data Products

• • Working on creating actionable insights and tools to improve VisaNet data quality within the Data Products team • Automating the process of backend data preparation for data quality dashboards, by creating metadata tables for • any rule updates or field changes • Creating more accurate channel identification, by leveraging the rule-based method and related fields to train a • logistic regression classification model using Python pandas and scikit-learn machine learning package • Implemented logistic regression model to track channel identification at FIFA World Cup 2019 • Monitoring data quality and generating business insights by using trending analysis and focusing on specific fields • Defining relative thresholds for abnormal volumes in order to detect anomalies • Detecting abnormal channel distribution changes on acquirer level by using statistical analysis on time series • distributions over time