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      Sen LEI

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About Me

Data Scientist \(\;\bullet\;\) Algorithm Engineer \(\;\bullet\;\) Inter-discipline background (Statistics - Economics - Law)

Skills Summary

Scripting Language & Software

Data Analysis Related:

Python ⋅ R ⋅ MATLAB ⋅ SQL ⋅ SAS (SAS Certified Base Programmer) ⋅ STATA ⋅ Eviews

Others:

shell script \(\;\cdot\;\) MongoDB \(\;\cdot\;\) pgSQL \(\;\cdot\;\) Git \(\;\cdot\;\) Linux \(\;\cdot\;\) tmux
\( \LaTeX \) \(\;\cdot\;\) Apple's iWorks suit \(\;\cdot\;\) Microsoft Office suit

Education

University of California, Santa Barbara | UCSB

M.A. in Applied Statistics

  • Main Courses: Machine Learning ⋅ Data Mining ⋅ Time Series ⋅ Advanced Statistical Methods ⋅ Statistical Theory (PhD level) ⋅ Design of Experiments
  • Worked as Teaching Assistant:

    ⋅ Prepared and gave sections for undergraduate students.

    ⋅ Read and graded undergraduate students’ homework and exams.

M.A. in Economics

  • Main Courses: Econometrics (PhD level) ⋅ Corporate Finance ⋅ Time Series ⋅ Microeconomics ⋅ Macroeconomics ⋅ GameTheory

Beijing Institute of Technology | BIT

B.A. in International Economics and Trade

  • Main Courses:
  • Worked as Research Assistant:

    ⋅ Finished the literature review of more than 25 papers referring to sex ratio.

    ⋅ Recorded, analyzed and visualize the Jiangxi province’s industry cluster data, provided a general report. (Used STATA).

    ⋅ Analyzed the data (using STATA) about China’s home service industry; participated in writing two papers.

B.A. in Law

  • Focused on interdisciplinary areas of Law and Economics.

Project

Construction of Indices for Business Circle: Applied Poisson GLM. (Used Python)

Recommender Algorithm for customized search in O2O Retail Products: Applied Collaborative Filtering Algorithm. (Used Python)

Feature Selection and Model Comparison on Microsoft Learning-to-Rank Data Sets: Applied multiple classification methods such as Support Vector Machine, Decision Tree, Random Forest, Boosting, Logistic Regression, etc. (Used R)

Did research on the topics such as “Attendance Behavior” and “Game Theory”; Analyzed and applied different statistical models such as ZIP model, Proportional-Odds Cumulative Logit Model, and some other Generalized Linear Model. (Used R)

Language

English \(\;\cdot\;\) Chinese

Interest

Climbing \(\;\cdot\;\) Sailing \(\;\cdot\;\) Hiking