Yiwei Bao

Portfolio

Data Science & Analytics Projects

Exploring economics, machine learning, and data visualization through hands-on analysis

Live DemoMachine Learning

Kaggle Silver Medal: Image Matching Challenge 2022

Built on top of a LoFTR image matching baseline, then improved inference flow and geometric verification parameters to push the Kaggle Image Matching Challenge 2022 score to 0.726 and earn a silver medal.

Case StudyMarket Trends

AI Search Trends and Market Interest Analysis

Use Google Trends to compare ChatGPT, Claude, Gemini, and Perplexity, then analyze how market attention shifts across AI tools.

Case StudyEconomics & Finance

Customer Retention, Segmentation, and Churn Prediction

A complete online retail case study spanning retention analysis, RFM segmentation, and churn prediction from data cleaning through business recommendations.

Case StudyData Visualization

Hotel Booking Cancellation Analysis

Identify booking-risk patterns through cancellation analysis to help hotel teams improve channel strategy and reservation policy.

Case StudyMachine Learning

Customer Journey Exploration

Use sample customer journey data to map behavior paths and show how funnel and stage-conversion analysis can reveal growth opportunities.