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Alexander Michels

University of Illinois at Urbana-Champaign

@alexandermichels

I’m currently a graduate student at the University of Illinois at Urbana-Champaign where I’m pursuing a doctorate in Informatics with a focus in Spatial Informatics. At UIUC I work as a research assistant under Dr. Shaowen Wang at the CyberInfrastructure & Geospatial Information Laboratory (CIGI) and CyberGIS Center for Advanced Digital and Spatial Studies. My work focuses on accessibility, meaning (1) using cyberGIS to explore, model, and analyze spatial patterns and systems of inaccessibility and inequity and (2) in making cyberGIS tools and technology accessible to all.


Introduction to OpenStreetMap (OSM) Network Data

This Notebook is meant to be a brief guide on working with Open Street Map (OSM) network data, primarily using the OSMnx Python package It walks through obtaining network data from OSMnx, exploring the data, and a simple use case of calculating free-flow travel time on the ...

Notebooks

Introduction to OpenStreetMap (OSM) Network Data

This Notebook is meant to be a brief guide on working with Open Street Map (OSM) network data, primarily using the OSMnx Python package It walks through obtaining network data from OSMnx, exploring the data, and a simple use case of calculating free-flow travel time on the ...

Calculating Accessibility to Ventilators in Illinois with CyberGIS-Compute

This notebook briefly walks through calculating spatial accessibility to hospital ventilators in across the state of Illinois using CyberGIS-Compute It calculates travel-time catchments using OpenStreetMap network data and then calculates spatial accessibility metrics This work uses the code from the following paper: Kang, JY, Michels, A, Lyu, F et al Rapidly measuring spatial accessibility of ...

Pysal Access Compute Example

The IntroToCyberGIS-Computeipynb notebook walks through the basics of CyberGIS-Compute: running models focused on spatial accessibility and exploring the anatomy of a CyberGIS-Compute job We do this by running two spatial accessibility models: (1) an example analysis using data from the pysal/access package and (2) a model covering the state of Illinois which also calculates travel-times before ...

Particle Swarm Optimization for Calibration in Spatially Explicit Agent-Based Modeling

The notebook is designed to teach you about Particle Swarm Optimization (PSO) and how you can use it for parameter optimization Particle Swarm Optimization (PSO) was first introduced in 1995 by James Kennedy and Russell Eberhart The algorithm began as a simulation of social flocking behaviors like those exhibited by flocks of birds and schools of fish, specifically of birds searching a cornfield, ...

Agent-based Land Market

Urban land markets exhibit complex emergent behaviors that have yet to be fully explained by the microeconomic decision-making which constitutes the market The Agent-based Land MArket (ALMA) framework has been introduced to simulate a bilateral agent-based land market that produces a rent gradient In this paper, we extend the ALMA framework by introducing two new parameters, heterogeneity, and ...


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