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Catherine He 's Projects

2sigma icon 2sigma

Two Sigma Financial Modeling Challenge

algorithms icon algorithms

:space_invader: Algorithms are a programmer's best friend.

animate.css icon animate.css

A cross-browser library of CSS animations. As easy to use as an easy thing.

blog_devise icon blog_devise

Basic CRUD app for posting with Devise login built on Ruby on Rails

boston_housing icon boston_housing

Exploring housing prices with pandas. Topics: matplotlib, r2_score, bias, variance, GridSearchCV, DecisionTree

busmall icon busmall

web app for customer to choose products

calculator icon calculator

Basic calculator (BMI, trip cost, mortgage) from JS

catalyst icon catalyst

Basic page for catalystgroup.sg hosted on surge

computer-science icon computer-science

:mortar_board: Path to a free self-taught education in Computer Science!

cookie-stand icon cookie-stand

Salmon cookie shop software using javascript styled with CSS

customer_segments icon customer_segments

Unsupervised learning to segment customers by their grocery spending. Preprocessing using log-transform, outlier removal with Tukey's method. Tuning using PCA, and clustering with K-Means.

devise icon devise

Flexible authentication solution for Rails with Warden.

f8app icon f8app

Source code of the official F8 app of 2016, powered by React Native and other Facebook open source projects.

finding_donors icon finding_donors

Predicting individuals' incomes with supervised learning (i.e. SVM, GNB, GBT). Pre-processing using log-transform, normalising, one-hot encoding. Scoring using Accuracy & F-score. Tuning with feature importance.

holt icon holt

revamped donor page with interactive slider, admin dashboard, FB login and graph API.

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