Katherine Chang Email & Phone Number

Virginia, United States

Debit Strategy

- Spearheaded a comprehensive data analysis project on Total Knee Arthroplasty, aimed at identifying care variation and patient outcomes to inform quality improvement interventions at Duke Rehabilitation Services- Performed extensive data wrangling and feature engineering, merged multiple datasets, addressed missing values and inconsistencies, and refining the dataset to conform with business requirements, thereby enabling effective model development- Conducted exploratory data analysis and descriptive data visualization utilizing Tableau, clustering and regression techniques to examine the relationship between demographics, care patterns, visit times, and patient outcomes- Implemented advanced machine learning models, including Random Forest, SVM, XGBoost, and Linear Regression, to predict PROMIS scores based on care patterns and patient characteristics- Conducted observational analysis, employed causal inference techniques such as Regression Adjustment, Regression Discontinuity, and Propensity Score Matching to uncover the impact of care patterns and physical therapy frequency on patient outcomes- Deliver insights such as positive effect of visits on improvement in physical function and initial treatments leading to more benefits

- Leveraged time series forecasting techniques, including the Augmented Dickey-Fuller (ADF) test for stationarity checks and ARIMA modeling, to analyze and predict sales trends for Walmart, achieving an 11% improvement in the Mean Squared Forecast Error (MSFE) through the adoption of a rolling forecast model- Conducted ETL and data mining on Duke Women's Lacrosse Team players data. Identifiedinconsistencies by SQL CTEs and window function and created interactive Tableau dashboard visualization of players’ training intensity and physical condition

Taiwan, Taiwan

Establish digital solutions for business units, carry out app features and connections between platforms to complete a holistic customer journey, including dashboard building for platform performance monitoring. Represent Audi Taiwan for strategy planning and partnerships with EV alliances.- Strategized the official LINE account product roadmap based on data-driven user behavior analysis, refined Loyalty Program mechanism by developing 2 new features which brought in 5000+ new user registrations- Developed the first VW TW group e-commerce system with respect to logistics, payment, and inventory management- Developed expansion strategies for electric vehicle charging services and infrastructure

Taiwan

Enhance customer experience via digital retail processes and showroom standards. Develop lead management strategies using digital platforms to increase prospect to sales conversion ratios. Establishment and improvement of a digital sales and after sales process.- Project Management on carlines webpages under official website by coordinating HQ, internal and external resources- Audi official LINE chatbot strategy planning, evaluation and functions roll-out- Connected vehicles system registration process optimization- Dealer showroom experience maintenance and standard audit- Managed stakeholder expectations, spearheaded in budget negotiation and roll-out schedules

25sprout is a startup established in 2012. The company focuses on web and application development, offering digital consultancy to fulfill client's requirements.- Assist in 2 Web/App development projects in regards to function testing and user experience

Taipei City, Taiwan

- Brain-storm and maintain functions of LINE chatbot with technical agencies by agile practice- Analyze and generate digital platform performance reports, giving support on development of data analytics dashboard in cooperation with KPMG- Assist in project management including official website configurator and Audi Innovation Award- Assist in e-tron DC charger CPO project study

Taipei City, Taiwan

- Generate monthly premium automotive market segment report- Assist in monthly dealer tactical payment and quarterly quality bonus- Raised 2020 Audi NCBS(New Car Buyers Study) proposal including market research methods for pitching

- Event Execution- Campaign Copywriting- Daily News Alert

- Responsible for calculating and auditing 30 part-timers’ payroll and expense, and make sure to be compliant with school policies

Master Of Quantitative Management: Business Analytics

Data Science Coursework: Data Science for Business, Data Infrastructure, Statistics, Deep Learning and Neural Network Domain Coursework.

Bachelor Of Arts - Ba, Business Analytics Program

Analytical projects: Stock Trend Prediction using python (scikit-learn, pandas) Clustering using R (K means)

Bachelor'S Degree, Finance

Activities and Societies: NTU Student Association - Vice president of Lighting and Public Address Group NTU Art Festival - Executive.