Liwei Wang Email & Phone Number

Guangzhou, Guangdong, China

Shenzhen, Guangdong, China

QQ音乐推荐算法实习生

Los Angeles Metropolitan Area

• Team Diagnostics Analysis of Synthetic Training: Built an end-to-end machine learning model pipeline, from data extracting, preprocessing to ultimate modeling. Classified, generalized the pipeline to diagnosed team.
• Designed the activity tree to aggregate individual activities (STEP) as features to the top (SESSION, team result)
• Tech Stacks: xAPI Activity Tree, MongoDB, OOD, Learning Records Store, Semi-Supervised Learning

Greater Los Angeles Area

• Student Engagement and Teacher Productivity App: Aimed at K-12 education by delivering a 360-degree engagement E-Learning platform among students, teachers, parents, publishers, and administrators
• As backend team leader, designed the data model (ER Diagram with 18 entities and 4 roles) with CTO from scratch. Helped schedule and assign the backend development tasks. Documented the API Swagger notes for front-end.
• As backend developer, developed complex CRUD services, resources (Swagger APIs) and DAO layers (JDBC Hibernate query) using Jhipster with Spring Boot framework, enable to run most of features and API of prototype
• Designed DTOs, and used JWT and PreAuthorize methods to solve security issues
• Tech Stacks: JHipster, Spring Boot, API Design, Data Modeling, H2, Postgres, Elastic Search, CICD, Git

Guangzhou, Guangdong, China

• Intern, Network Management Center, Data Modeling Team
• Fraud Calls Detection: Extracted over 230K unbalanced customer profile data from Hadoop using Hive. Built and improved classification model (LR) performance using feature engineering techniques (Information Value, etc.)
• Model Deployment: Provided RESTful API and deployed the Spark classification model on Company’s pipeline

Zhuhai, Guangdong, China

• Intern in the research project team at Digital Bank Innovation Lab.Project: Text Generation of Fintech News Summary
• Automated the latest Fintech news fetching process with a crawler in Scrapy, and Splash and Selenium frameworks from multiple social media websites. Filtered, de-duplicated and ranked, crawled data via text mining and.
• Utilized TextRank method to extract keywords and generate recommended news abstract

Xiamen, Fujian, China

• Intern in Oracle IT consulting team.Project: Development of ERP Analysis Platform of XIANG YU Group
• Data Analysis: Analyzed data from 6 financial analysis BI tables based on financial reclassification and requirement documents logic. Updated test reports weekly
• Data Extracting & Aggregating: Tested data accuracy through several complete ETL pipelines by using SQL.

Guangzhou

• Edited Excel manuscript of semi-annual financial statement.Conducted computation & analysis of financial index.
• Conducted financial statement analysis and industry research of banking industry. Analyzed why and how revenuestructure changed& figured out the key profit drivers. Structured semi-annual reports in consulting way.
• Utilized PCA method with R and SPSS to evaluate the scientific accuracy of performance model & managed the data, explained the principle behind this model to staff, extracted key factors that affected factor score.

Master Of Science - Ms, Applied Data Science, 4.0 / 4.0

Relevant Coursework: - Data Management (including cloud, the map-reduce paradigm.) - Machine Learning and Data Mining (Emphasis on Map.

Bachelor'S Degree, Statistics, Gpa3.54

Activities and Societies: Project: Classification based on High-dimensional, Unbalanced RNA Data • Under the guidance of Prof. Jie Hu.

Bachelor'S Degree, Financial Mathematics, 86.1 / 100.0 (Top 13%, Double Major)

Relevant Coursework: - Data Mining (in R, 94/100) - Portfolio Management (in R) - Econometrics - Macroeconomics & Microeconomics.

Statistics, Gpa: 3.65/4 (Exchange)

Relevant Coursework: - Statistical Learning (Graduate-Level) - Data Structure and Algorithms (in Java) - Database Systems - Discrete Math.

Overseas Business Immersion Program

Relevant Coursework: - Financial Statement Analysis - Presentation Skills and Training - Marketing Case Analysis - Negotiation - Human.

High School Degree

- Achievements: Ranked 2141 (top 0.3%) in Guangdong Province college entrance examination - Activities: Joined the Guangdong Experimental.