Meet the FCL Team & Sister Labs

Clio Andris
Lab Director

        I am an assistant professor in the School of City and Regional Planning and the School of Interactive Computing at Georgia Tech. I research mathematical models of social networks, social flows, and interpersonal relationships in geographic space, applied to issues of urban planning, visualization, transportation and geography. I teach GIScience classes at multiple levels including Environmental GIS and Spatial Network Analysis, as well as classes on Information Visualization. I am a member of the Center for Spatial Planning Analytics and Visualization (CSPAV) and an affiliate of the Center for Quality Growth and Regional Development (CQGRD). I am also a member of the School of Interactive Computing's Information Visualization research group. I received my PhD from MIT in 2011 in Urban Information Systems where I was an NDSEG fellow and member of the Senseable City Lab. I was a postdoctoral fellow at the Santa Fe Institute (2012-2014) and a member of the faculty in the Department of Geography at Penn State (2014-2019). 

Seolha Lee
Graduate Research Assistant

        I’m a master's student in the City and Regional Planning program at Georgia Institute of Technology. My research interests lie in combining computational and qualitative methods to address by and for whom spaces are 1) occupied and constructed 2) represented through data and knowledge, and 3) how those factors affect human spatial behaviors and outcomes. The impact of digital technology and media in those processes are also at the center of my interest. In Friendly Cities Lab, I'm exploring social flows and spatial behaviors to promote social health and joy in cities with a marvelous team.

        Before joining the Friendly Cities Lab, I worked as a research assistant in Maturepolis Lab at KAIST in South Korea and City Regional Studies Center at the University of Alberta, Canada. Also, I worked in practice as a strategic designer/GIS analyst in an urban planning & design studio for 2 years, designing and implementing a variety of participatory planning/design projects. I hold a BA in Civil & Environmental Engineering with a Geography minor at Seoul National University. You can check my works and more stories on my website (

Xiaofan Liang
Graduate Research Assistant

        I am a Ph.D. student in the School of City and Regional Planning, advised by Dr. Clio Andris. My research interests revolve around understanding how human movements (e.g., trajectories) and activities (e.g., consumption) at a micro-scale give rise to the spatial and network structures that further characterize cities on a macro-scale (segregation, street scenes, industrial structure, etc.). My ongoing projects include measuring the urban environments conducive to chain restaurants and analyzing a multiplex network of mobility, investment, knowledge, and social media friendship flows in China. Occasionally, I consult new businesses with a mix of commercial and social (or cultural) goals to better understand the meanings and impacts of their moves on cities as the Data Lead at MaxLab. In the future, I hope to contribute to building more socially sustainable cities in Asia.
        I received a Bachelor’s Degree in Sociology from UC-Berkeley (2015). I pursued another Bachelor’s Degree in Computer Science from Minerva Schools at KGI (2019), through which I rotated to study in six different countries over four years and grew my interests in cities! Before coming to Georgia Tech, I was an REU at Santa Fe Institute (2017 and 2018), from where I fell in love with complexity science and Clio’s work.

Matthew Lim
Undergraduate Assistant

        I am a bachelor’s student in Computer Engineering at Georgia Tech pursuing a minor in Sustainable Cities. I have interests in Human-Computer Interaction and educational maker spaces. I’m also interested in Computer Architecture, UX design, and software development. I’m currently on the executive board of Georgia Tech’s ECE Makerspace and have worked at companies like Siemens, Autodesk, and Georgia Tech Research Institute. I hope to continue my education at Georgia Tech in either a Masters in ECE or Human-Computer Interaction.

Yasamin Khorashahi
Undergraduate Researcher

I’m an undergraduate Public Policy major and Sustainable Cities minor at Georgia Tech with an interest in local government, urban planning, and gender studies. I have worked in both state and local government and the nonprofit sector in Georgia, primarily in the areas of community and economic development. In my free time I am a volunteer on several political campaigns and play the harp semi-professionally. After graduation, I hope to continue my education at Georgia Tech and aim to pursue a dual Master’s in City and Regional Planning and Geographic Information Systems. Ultimately, I want to apply my experiences and knowledge to give back to the communities which I am a part of by bettering public service through the application of urban analytics.

Gabriel Appiah
Graduate Researcher Assistant

I’m a first-year Ph.D. student in the School of City and Regional Planning. Dr. Clio Andris is my advisor. My research interest is in Network Science, Transportation, and Land Use Planning. Before coming to Georgia Tech, I was a Regional Planner at Siouxland Interstate Metropolitan Planning Council, where I focused on GIS, transportation, community, and economic development.

Sonia Sargolzaei
Graduate Researcher Assistant

I'm a master's student in Computer Science at the Georgia Institute of Technology, specializing in Machine Learning. My research interests are data analytics, machine learning, and visualization. With FCL, I am working on a project using Georgia Tech Atlanta campus WiFi data and GIS analysis to find: given one/several positive cases in the network, what was the possible reason for the breakout of the infectious disease? This project can help contact tracers and universities to get a better idea about how connections in a network of people can cause the spread of an infectious disease. I am also a research assistant at Ubicomp lab and part of its Contact Tracing project to reduce the spread of COVID-19 throughout the campus, which we can be used by other universities to combat the spread of the infection. Prior to Georgia Tech, I obtained my undergraduate degree from the University of Tehran in Computer Engineering. Check out my personal website.

Abhay Vittal
Senior, High School
I'm a rising high school senior at Walton High School. I have an interest in engineering and coding, and I plan to major in computer engineering or computer science in college.
Anish Rajeev
Senior, High School
I am a rising senior at Northview High School in Duluth GA. I have an interest in coding and computers and plan to major in something related to computer engineering and finance in college.

Our Alumni

Sambhavi Joshi
Graduate Research Assistant
Margarita Groisman
Undergraduate Assistant

Studying Industrial and Systems Engineering with an analytics concentration.

Josh Baker
Undergraduate Researcher
Shaarif Sajid
Graduate Researcher
Brittany Waltemate
Post-Baccalaureate Researcher
Xi Liu
Graduate Associate

Ph.D. in the Department of Geography at Penn State

Hanzhou Chen
Graduate Associate

Associate MA/Ph.D. student in the Department of Geography at Penn State

Jarrett Gulakowski
Undergraduate Researcher

Undergraduate majoring in geography with a GIS focus

Zixuan Huang
Post BS Researcher

BS degree in Geography GIS and a minor in Energy Business and Finance (EBF)

Sohrab Rahimi
Graduate Associate

Ph.D. of Architecture at Penn State

Michelle Pistner
Graduate Assistant (IGERT Program)

BDSS-IGERT Ph.D. in the Department of Statistics at Penn State

Prathamesh Aher
Undergraduate Researcher

BS in Petroleum and Natural Gas Engineering with minors in Energy-Business Finance, Geogaphy and GIS

Cassie McMillan
Graduate Assistant (IGERT Program)

IGERT Big Data Social Science Fellow Dual-title Ph.D. in sociology and demography in the Department of Criminology and Sociology at Penn State

Luba Hristova
Undergraduate Researcher

BS in GIS at Penn State

Ruiqi (Bonnie) Guo
Post-Baccalaureate Researcher

BS in Geography and minor in horticulture and anthropology at Penn State

Rebecca Bucci
Graduate Researcher

Graduate student in the Criminology and Sociology department at Penn State

Mengchen Wang
Undergraduate Researcher

BS in Petroleum and Natural Gas Engineering at Penn State

Christopher Mertz
Undergraduate Researcher

BS in Geography with a focus on GIS at Penn State

Michael Citrenbaum
Undergraduate Researcher

BS in GIS at Penn State

Li-San Hung
Post-Doctoral Researcher

Ph.D. from the Department of Geography at Penn State (minor in Demography)

Margret Logan
Undergraduate Researcher

BS in Industrial Engineering at Penn State

Sara Cavallo
Graduate Assistant

Ph.D. in the Department of Geography at Penn State

Sister Labs

We are part of the Center for Spatial Analysis and Visualization (CSPAV), and the InfoVis Group in the School of Interactive Computing at Georgia Tech. 

Sister Labs: We are part of a wide network of emerging and established urban and spatial analysis labs across the world.

Geospatial Artificial Intelligence (GeoAI) Lab, University at Buffalo, the State University of New York (SUNY), PI Yingjie Hu 
CyberInfrastructure and Computational Intelligence Lab (CICI Lab), Arizona State University, PI Wenwen Li
Civic Data Design Lab, MIT, PI Sarah Williams
Geospatial Data Science Lab, University of Wisconsin-Madison, PI Song Gao
Geoinformatics and Earth Observation Lab, Penn State, PI Guido Cervone
Movement Science Lab (MOVE@UCSB), UC-Santa Barbara, PI Somayeh Dodge
NUS Urban Analytics Lab, National University of Singapore, PI Filip Biljecki
Platial Analysis Lab, McGill University, PI Grant McKenzie

If you are doing urban work and would like to be a Sister Lab, let us know!