Activity
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I wrote in today's edition of The Batch about the new F-1 visa policy, and want to share that message here as well. #StudentBan
I wrote in today's edition of The Batch about the new F-1 visa policy, and want to share that message here as well. #StudentBan
Liked by Le (Ellie) Le
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I was laid off about one and a half months ago. I had a very tough time. I received many messages from my friends and connections. Many of them…
I was laid off about one and a half months ago. I had a very tough time. I received many messages from my friends and connections. Many of them…
Liked by Le (Ellie) Le
Experience & Education
Licenses & Certifications
Courses
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Big Data and Large-scale Computing
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Business Intelligence and Data Mining SAS
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Data Structures for Application Programmers
08722
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E-Commerce System Development
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Econometrics
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Internet Finance
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Logistics and Supply Chain Management
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Machine Learning
10601
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Marketing Research and SPSS Application
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Practical Data Science
15688
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Probability Theory and Mathematical Statistics
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Programming in R for Analytics
94842
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Text Analytics
95865
Projects
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Web Scraper for Yelp Restaurant Review
• Used Python to develop a web scraper to parse unstructured reviews for analysis
• Parsed JSON results from Yelp API with OAuth authentication considering pagination and rate limiting
• Parsed Yelp web page HTML using BeautifulSoup and regular expression
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Mobile-to-Cloud Application Design
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• Used Java to developed a MVC-based web service using a RESTful API "Eventful" and deployed it to Heroku PaaS
• Used MongoDB to store and retrieve data and designed a web-based dashboard for operation analytics
• Developed an Android application taking requests from clients and receiving response from the cloud
• Encrypted data using TEA and RSA
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Machine Learning Algorithm Implementation and Application
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• Used Python to implemented Decision Tree ID3 algorithm, and achieved about 85.8% accuracy rate on test dataset
• Developed Neural Network algorithm using sigmoid function in a batch mode, and achieved 0.08% and 0.38% error rates in predicting hot songs and student scores separately
• Implemented Forward, Backward, and Viterbi algorithm for Hidden Markov Model, and applied the model to the evaluation and decoding problem of word tags in text analysis
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Website Design for Roux Meetups
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• Designed routing pages with Node.js and Express.js handling HTTP requests
• Used package.json scripts to realize workflow automation and used modules to realize modulization
• Developed templates using EJS through creating partials using includes
• Created a simple live chat room using Socket.IO
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Analysis on the Income Inequality between Men and Women
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• Used R to preprocessed data and used ggplot to draw graphs and to select attributes
• Conducted linear regression and found race, education and industry significantly affect income inequality
• Wrote a report in a markdown format
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Database Design for a Construction Company Case
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• Designed logical data model including E-R diagram, normalized schemas, and a well-developed data dictionary
• Developed physical data model including tables, views, sequences, triggers, procedures, and functions
• Added database objects including roles, jobs, indexes, and warehouse migration guide based on business rules
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Twitter User Political Inclination Prediction
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• Implemented SVM algorithm in Python to do political inclination classification of tweet users for better advertising
• Used Python SQLite to store data and made queries to analyze trending tweets given a topic
• Used Numpy and Pandas to clean data and visualized using matplotlib for correlation analysis
• Used nltk to constructed bag-of-words TFIDF vectors and n-gram model after cleaning and tokenizing raw tweets
Honors & Awards
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Dean's List of H. John Heinz III College 2016 Fall
Carnegie Mellon University
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Dean's List of H. John Heinz III College 2016 Spring
Carnegie Mellon University
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Dean's List of H. John Heinz III College 2015 Fall
Carnegie Mellon University
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Master of Information Systems and Management Merit Scholarship
Carnegie Mellon University
Languages
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English
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Chinese
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More activity by Le (Ellie)
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Porsche Unveils Its First-Ever Electric Car
Porsche Unveils Its First-Ever Electric Car
Liked by Le (Ellie) Le
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