Katie Hempenius

Software Engineer in New York City

Map of NYC Wikipedia Articles

Interactive Map

Map of NYC Wikipedia Articles

After constantly looking up my surroundings on Wikipedia, I made this map to make it easier to learn more about the places and things that make up New York City.

> View Map
Map of San Francisco

Web Scraping

A Map of San Francisco, According to 30,000 Yelp Listings

This project investigated how Yelp data would characterize the different neighbhorhoods of San Francisco.

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San Francisco Crack Activity

Data Analysis

Which San Francisco street corners sell the most narcotics?

This article uses SFPD data to explore how the San Francisco narcotics trade varies from block to block.

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Median Rents By Neighborhood

Web Scraping

How much does it cost to rent a room in San Francisco?

This article provides an overview of the rental market for single rooms in San Francisco (i.e. living with roommates) based on data collected from 15,000 Craigslist postings.

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What do people mention in their Tinder profiles?

This investigation looks at how people describe their interests, personalities, and physical selves across 10,000 Tinder profiles that were collected via botting.

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Sensor Networks

A more cost-effective unattended ground sensor using commercial off-the-shelf products

This paper outlines the creation of an unattended ground sensor (UGS) network using Android smartphones and Arduino microcontrollers in conjunction with an ad-hoc wireless mesh network and an unattended ground vehicle (UGV).

> Read Paper (IEEE)