Articles by Susan Li

How Happy is Your Country? — Happy Planet Index Visualized

November 9, 2017 | 0 Comments

The Happy Planet Index (HPI) is an index of human well-being and environmental impact that was introduced by NEF, a UK-based economic think tank promoting social, economic and environmental justice. It ranks 140 countries according to “what matters most — sustainable wellbeing for all”. This is how HPI is calculated: It’s ...
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Exploring, Clustering, and Mapping Toronto’s Crimes

November 2, 2017 | 0 Comments

Motivation I have had a lot of fun exploring The US cities’ Crime data via their Open Data portals. Because Toronto’s crime data was simply not available. Not until the summer of this year, Toronto police launch a public safety data portal to increase transparency between the public and ...
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A Gentle Introduction on Market Basket Analysis — Association Rules

October 2, 2017 | 0 Comments

Market Basket Analysis is one of the key techniques used by large retailers to uncover associations between items. It works by looking for combinations of items that occur together frequently in transactions. To put it another way, it allows retailers to identify relationships between the items that people buy. Association ...
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Topic Modeling of New York Times Articles

September 3, 2017 | 0 Comments

In machine learning and natural language processing, A “topic” consists of a cluster of words that frequently occur together. A topic model is a type of statistical model for discovering the abstract “topics” that occur in a collection of ...
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4 years of The Hacker News, in 5 Charts

August 22, 2017 | 0 Comments

Introduction Hacker News is one of my favorite sites to catch up on technology and startup news, but navigating the minimalistic website can be sometimes tedious. Therefore, my plan in this post is to introduce you that how this social news site ...
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Modeling and prediction for movies

June 27, 2017 | 0 Comments

Setup This project details our analysis of the movie dataset that contains information from Rotten Tomatos and IMDB for a random sample of movies. The purpose of this project is to develop a multiple linear regression model to understand what att...
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United Nations General Assembly Voting Data Analysis

June 19, 2017 | 0 Comments

I recently came across a R package called “unvote” that consists the voting history of countries in the United Nations General Assembly from 1946 to 2015. The packaged was developed by David Robinson. Explore the data library(ggplot2) librar...
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