Data Engineer
Current
Sep 2021 - Present
Who is Fei Liu? Overview
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Quick answer
Fei Liu is listed as Data Engineer at Facebook, based in San Francisco Bay Area, United States. AeroLeads shows a work email signal at gwmail.gwu.edu and a matched LinkedIn profile for Fei Liu.
Fei Liu previously worked as Data Scientist/Data Engineer at Plume Design, Inc and Data scientist Intern at Isazi Consulting. Fei Liu holds Master’S Degree, Statistics from The George Washington University.
Company email context
Email format at Facebook
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*@gwmail.gwu.edu
68% confidence
AeroLeads found 1 current-domain work email signal for Fei Liu. Compare company email patterns before reaching out.
Profile bio
About Fei Liu
My interest lies in utilizing cutting-edge data science technology to make data-driven decision. Areas of Expertise:-Statistical Analysis: Exploratory Data Analysis, Multivariate Data Analysis, Sampling Design.-Machine Learning: Logistic Regression, K-means Clustering, Support Vector Machine, Random Forest. -Data visualization: Python, R, Tableau-Computational programming: Python, R, SQL, SAS.-Experiment Design: A/B testing.
Listed skills include Sas, R, Statistics, Stata, and 12 others.
Current workplace
Fei Liu's current company
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6 roles
Fei Liu work experience
A career timeline built from the work history available for this profile.
Data Scientist/Data Engineer
Oct 2018 - Sep 2021
Data Scientist Intern
Isazi Consulting
• Predicted tuberculosis from chest X-rays using deep learning convolutional neural network (CNN) built from scratch with 84% accuracy and transfer learning with 88% accuracy using Python Pandas, Numpy, Scikit-learn, Matplotlib, and Pytorch on AWS. • Implemented CNN model to detect 14 advanced lung diseases on over 100,000 chest X-rays(15G) released by NIH, resulting in mean AUC 0.75 which outperforms one of the previous state-of-the-art results by 1.2%. Wrote custom cost function to handle data imbalance. Deployed model using Python Flask.
Oct 2017 - Jun 2018
Data Analyst
• Conducted ad hoc data analytics, statistical hypothesis testing, and dashboard using R, SAS, SQL, and Tableau to help policy makers deepen understanding of US PK-12 education status, including student engagement, gender gap, education inequality.• Led and coordinated Department of Education's annual data products release. Developed data processing pipeline; automated data review, reporting, and documentation generating processes.
Feb 2016 - Jul 2016
Statistical Analyst
• Measured key metrics to monitor United States PK-12 student academic performance, school and teacher characteristics using NAEP complex multi-stage survey data, with techniques such as variance estimation using Jackknife, bias analysis using Chi-square test, t-test, multiple comparison, and HLM.• Built analytical tool in R enabling researcher with less programming experience to analyze NAEP data more efficiently; including guiding junior staff.• Fitted multiple linear regression with fixed and random effect and factor analysis to predict the difficulty of Grade 4 and 8 reading items with Coh-Metrics factors, improving NAEP reading assessment effectiveness.• Validated NAEP math and history assessment framework by implementing stratifed bootstrap re-sampling method, creating 10,000 hypothetical assessment samples to determine Mathematics framework content coverage variability; validated results with the most recent 5 assessments; presented research study result at AERA annual conference.
Nov 2010 - Jan 2016
Research Data Analyst Intern
• Extracted education indicators from household surveys to gain insight of local school district education quality using STATA, SPSS, and SQL.
Jan 2010 - Sep 2010
3 education records
Fei Liu education
Master’S Degree, Statistics
The George Washington University
Bachelor’S Degree, Mathematics And Applied Mathematics
China Agricultural University
Master'S Degree, Data Science
University Of San Francisco
FAQ
Frequently asked questions about Fei Liu
Quick answers generated from the profile data available on this page.
What company does Fei Liu work for?
Fei Liu works for Facebook.
What is Fei Liu's role at Facebook?
Fei Liu is listed as Data Engineer at Facebook.
What is Fei Liu's email address?
AeroLeads has found 1 work email signal at @gwmail.gwu.edu for Fei Liu at Facebook.
Where is Fei Liu based?
Fei Liu is based in San Francisco Bay Area, United States while working with Facebook.
What companies has Fei Liu worked for?
Fei Liu has worked for Facebook, Plume Design, Inc, Isazi Consulting, American Institutes For Research, and Macrosys, Llc.
How can I contact Fei Liu?
You can use AeroLeads to view verified contact signals for Fei Liu at Facebook, including work email, phone, and LinkedIn data when available.
What schools did Fei Liu attend?
Fei Liu holds Master’S Degree, Statistics from The George Washington University.
What skills is Fei Liu known for?
Fei Liu is listed with skills including Sas, R, Statistics, Stata, Spss, Data Analysis, Statistical Modeling, and Data Mining.
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