
Over two months, Cheryl Gao enhanced the GAOCheryl/QF5214_2025_G8 repository by building analytics and reliability features for quantitative finance workflows. She developed interactive sentiment IC metrics analysis and improved portfolio analysis with auto-refresh and error stabilization, using Python, Pandas, and Plotly for data scripting and visualization. Cheryl strengthened backtesting by fixing duplicate data reads, switching benchmarks to NASDAQ 100, and adding long-short UI support, while maintaining Git hygiene. In April, she addressed backtest results integrity, updated database configurations, and integrated new HTML chart visualizations. Her work improved data accuracy, model evaluation, and the reliability of financial performance dashboards.
April 2025: Key backtest reliability and visualization enhancements for GAOCheryl/QF5214_2025_G8. Delivered data integrity fixes for backtest results storage, ensured correct HTML rendering by preventing outdated comparison files from being used, and updated database configurations to reference the proper data source. Added a new HTML chart file to visualize the latest backtest performance. Improved IC analysis integration during backtesting. These changes reduce the risk of incorrect results, improve data trust, and provide clearer performance dashboards.
April 2025: Key backtest reliability and visualization enhancements for GAOCheryl/QF5214_2025_G8. Delivered data integrity fixes for backtest results storage, ensured correct HTML rendering by preventing outdated comparison files from being used, and updated database configurations to reference the proper data source. Added a new HTML chart file to visualize the latest backtest performance. Improved IC analysis integration during backtesting. These changes reduce the risk of incorrect results, improve data trust, and provide clearer performance dashboards.
March 2025 — Delivered analytics and reliability enhancements on GAOCheryl/QF5214_2025_G8. Key features include Sentiment IC Metrics Analysis with interactive plots to compare models with/without sentiment, and auto-refresh on the Main Portfolio Analysis page (with subsequent stabilization to prevent errors). Backtesting was strengthened via fixing duplicate data reads, switching the benchmark to NASDAQ 100, and adding long-short UI support. Git hygiene improvements were completed by updating .gitignore. These changes improve data freshness, model evaluation credibility, and backtesting realism, enabling faster, more reliable business decisions. Technologies demonstrated include Python data scripting, interactive plotting, time-series analytics, UI/backtest integration, and Git hygiene.
March 2025 — Delivered analytics and reliability enhancements on GAOCheryl/QF5214_2025_G8. Key features include Sentiment IC Metrics Analysis with interactive plots to compare models with/without sentiment, and auto-refresh on the Main Portfolio Analysis page (with subsequent stabilization to prevent errors). Backtesting was strengthened via fixing duplicate data reads, switching the benchmark to NASDAQ 100, and adding long-short UI support. Git hygiene improvements were completed by updating .gitignore. These changes improve data freshness, model evaluation credibility, and backtesting realism, enabling faster, more reliable business decisions. Technologies demonstrated include Python data scripting, interactive plotting, time-series analytics, UI/backtest integration, and Git hygiene.

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