Edwin Lei Email & Phone Number

San Francisco, Ca, Us

Cupertino, California, Us

- Led the design and implementation of the AB testing data infrastructure for Siri- Contributed to the internal metrics authoring platform

Los Gatos, Ca, Us

- Led the design and analysis of AB tests to measure the efficacy of algorithmic and UI features. - Synthesized experimental results for cross functional partners (product managers, engineers, UX designers, consumer insight researchers, content analysts). Led the discussion on follow-up steps (e.g., productization, iterative tests, etc).- Led a team of data scientists and visualization engineers to develop an internal tool to visualize how members navigated the Netflix UI (path analysis). Used by product managers and engineers to opportunity size App QoE projects.- Contributed to a company-wide shared metrics repository that abstracted over common query patterns to facilitate the work of data scientists.- Collaborated with consumer insight researchers to quantify the importance of member routines on Netflix. Motivated UI features that built new and reinforced existing routines.- Owned and maintained a daily ETL that extracted member session features to support AB tests and exploratory research.

Seattle, Wa, Us

- Drove the design of randomized controlled experiments with internal customers to measure theefficacy of supply chain and inventory management initiatives.- Communicated and interpreted the results from power analysis, sampling and randomization,and AB testing to aid decision making.- Implemented in Python a zero-inflated generalized estimating equations (GEE) longitudinalmodel that reduced the duration of supply chain experiments by 25%.- Implemented in Spark and Scala a weighted GEE model to facilitate investigation ofexperimental results for slower-selling products on Amazon.com.- Implemented in R a robust and multi-dimensional rank-based stratified sampling algorithmwhich reduced sampling variability by 10% and ensured homogeneity across treatment groups.- Automated operational tasks for the product manager with UNIX and Python programs.

Toronto, Ontario, Ca

- Devised a dimension reduction technique to reduce the complexity of fitting regression models for sparse functional data.- Proved the convergence rate of our proposal and derived its inverse bias-variance relationship.- Extended our methodology for classification of sparsely observed functional data.

Toronto, Ontario, Ca

- Awarded a $100,000 grant from the Bill & Melinda Gates Foundation to deliver, as a team of eight, a massive open online course for introductory statistics to over 5,000 students.

Toronto, Ontario, Ca

- Provided statistical consultation to a Ph.D. researcher from the Faculty of Kinesiology.

Claremont, Ca, Us

- Designed, as a team of four, a financial market simulator whose dynamics derived from the interaction between distinct market participants.

Claremont, Ca, Us

- Modeled the relationship between future credit card delinquency rates and economic data.

Burnaby, Bc, Ca

- Forecasted internet traffic for the official website of the 2010 Vancouver Winter Games.

Doctor Of Philosophy (Ph.D.), Statistics

Master'S Degree, Statistics

Bachelor'S Degree, Mathematics