My research integrates Network and Data Science, Computational Social Science, and the Digital Humanities to advance Artificial Intelligence (AI) methods for studying artificial societies in digital twin environments. Using heterogeneous data ranging from microdata and digital traces to CDR, GPS, social media, and satellite imagery, I develop high-resolution computational models that capture multiscale socio-behavioral and socio-spatial dynamics. This work contributes data-intensive, theory-informed frameworks for explaining and forecasting complex social phenomena and provides empirical foundations for policy analysis supported by robust AI-driven modeling infrastructures.
RESEARCH, TEACHING, or OTHER INTERESTS
Artificial Intelligence, Modeling and Simulation, Urban Studies, Transportation
3
Scopus Publications
109
Scholar Citations
4
Scholar h-index
3
Scholar i10-index
Scopus Publications
Stratified mobility, segregated boundary, and socioeconomic mixing in New York Rafiazka Millanida Hilman Computational Urban Science, 2025 Mobility cross spatial units represents the embodiment of how people manage activities between locations along temporal sequences. Spatiotemporal pattern nevertheless interacts with the socioeconomic characteristics of respected origin (push factors) and destination (pull factors) which widely discussed in spatial interaction literature. Observing this dynamics at higher spatial resolution allows us to entangle multifaceted nature of city, its complexity as a system or network, and the way it shapes movement of people. This study explore the extent interconnected elements of urban system or urban networks, in parallel with the appearance of external shock namely COVID outbreak, may affect estimation of mobility flows. To improve predictive power, Gravity Model is extended to Urban System Model by augmenting the complexities of urban network based on micro-analytical approach (intra-city networks). Our findings reveals better performance of a more complex Urban System Model as to compared with Gravity Model. Here, we leverage stratification in mobility by specifying mobility flows with respect to income status of respected areas. The occurrence of COVID outbreak followed by lockdown measure increases intra-class mobility, indicating the coupling between socioeconomic distance and geographical distance. Flows between areas with similar economic ranges are more predictable than the one of different level. Furthermore, the presence of pull factors is more affluent than push factors in determining mobility regardless the severity of external shock.
Socioeconomic biases in urban mixing patterns of US metropolitan areas Rafiazka Millanida Hilman, Gerardo Iñiguez, Márton Karsai EPJ Data Science, 2022 Urban areas serve as melting pots of people with diverse socioeconomic backgrounds, who may not only be segregated but have characteristic mobility patterns in the city. While mobility is driven by individual needs and preferences, the specific choice of venues to visit is usually constrained by the socioeconomic status of people. The complex interplay between people and places they visit, given their personal attributes and homophily leaning, is a key mechanism behind the emergence of socioeconomic stratification patterns ultimately leading to urban segregation at large. Here we investigate mixing patterns of mobility in the twenty largest cities of the United States by coupling individual check-in data from the social location platform Foursquare with census information from the American Community Survey. We find strong signs of stratification indicating that people mostly visit places in their own socioeconomic class, occasionally visiting locations from higher classes. The intensity of this ‘upwards bias’ increases with socioeconomic status and correlates with standard measures of racial residential segregation. Our results suggest an even stronger socioeconomic segregation in individual mobility than one would expect from system-level distributions, shedding further light on uneven mobility mixing patterns in cities.
RECENT SCHOLAR PUBLICATIONS
Stratified mobility, segregated boundary, and socioeconomic mixing in New York RM Hilman Computational Urban Science 5 (1), 1-16 , 2025 2025
Impact of increasing local economic capacity on reducing maritime logistics costs in island Province of eastern Indonesia: A dynamic system approach C Amin, AW Hasyim, M Sun'an, Yetty, RM Hilman, H Fahmiasari Transportation Research Interdisciplinary Perspectives 27 (101195) , 2024 2024 Citations: 30
Mobility Segregation Dynamics and Residual Isolation During Pandemic Interventions RM Hilman, M García-Herranz, V Sekara, M Karsai arXiv preprint arXiv:2310.03557 , 2023 2023
Mobility Segregation Dynamics and Residual Isolation During Pandemic Interventions R Millanida Hilman, M García-Herranz, V Sekara, M Karsai arXiv e-prints, arXiv: 2310.03557 , 2023 2023
The Ultra Large Container Vessel: a blessing or a curse R Dekker, J Mulder, RM Hilman, N Milovanovic Keeping the focus on sustainability: a challenge for governance Liber … , 2023 2023
Structure and Dynamics of Mobility Segregation and Spatial Diversity in Cities RM Hilman Central European University , 2023 2023
Socioeconomic biases in urban mixing patterns of US metropolitan areas RM Hilman, G Iñiguez, M Karsai EPJ data science 11 (1), 32 , 2022 2022 Citations: 37
Socioeconomic biases in urban mixing patterns of us metropolitan areas R Millanida Hilman, G Iñiguez, M Karsai arXiv e-prints, arXiv: 2110.04183 , 2021 2021 Citations: 1
Socioeconomic Segregation in Urban Mobility RM Hilman Social Dynamics: Inequalities, Integration, Mobility, and Migration , 2020 2020
Socioeconomic Segregation in Spatiotemporal Urban Mobility RM Hilman Conference on Complex Systems CCS2020 3 (Complex Systems for the Most … , 2020 2020
Gender in the transition to sustainable energy for all: From evidence to inclusive policies J Clancy, A Barnett, E Cecelski, S Pachauri, S Dutta, S Oparaocha, ... ENERGIA the International Network on Gender and Sustainable Energy. , 2019 2019 Citations: 30
The Dynamics of Mass and Elite in Dutch Dividend Tax Discourse RM Hilman Women in Networks (WiN) COSTNET , 2019 2019
A Robust Network Design for Synchromodal Transportation RM Hilman COSTNET19 Conference , 2019 2019
Cascading Effects and Optimal Network Configuration Design for Liner Shipping R Hilman 2018 Citations: 1
Gender and Fossil Fuel Subsidy Reform in Indonesia: An Audit of Data N Kusumawardhani, R Hilman, T Laan, N Warda, R Nurbani < bound method Organization. get_name_with_acronym of< Organization … , 2017 2017
Gender and fossil fuel subsidy reform: An audit of data on energy subsidies, energy use and gender in Indonesia N Kusumawardhani, R Hilman, T Laan, N Warda, RI Nurbani Communications Section Working Papers , 2017 2017 Citations: 9
Global Production Sharing in Machinery and Transport Equipment Industry in the ASEAN4 R Millanida Hilman, T Widodo 2015
FROM BEANS TO LATTE: MAPPING INDONESIAN POSITION IN GLOBAL COFFEE CHAIN RM HILMAN Universitas Gadjah Mada , 2015 2015
The Welfare Impacts of Price Equalisation in Energy Market Integration T Widodo, MH Rafiazka ERIA Research Project Report. Economic Research Institute for ASEAN and East … , 2014 2014 Citations: 1
Determinants of Trade Flows in ASEAN-4 Machinery and Transport Equipment Industry: Global Production Sharing Insight RM HILMAN Universitas Gadjah Mada , 2013 2013
MOST CITED SCHOLAR PUBLICATIONS
Socioeconomic biases in urban mixing patterns of US metropolitan areas RM Hilman, G Iñiguez, M Karsai EPJ data science 11 (1), 32 , 2022 2022 Citations: 37
Impact of increasing local economic capacity on reducing maritime logistics costs in island Province of eastern Indonesia: A dynamic system approach C Amin, AW Hasyim, M Sun'an, Yetty, RM Hilman, H Fahmiasari Transportation Research Interdisciplinary Perspectives 27 (101195) , 2024 2024 Citations: 30
Gender in the transition to sustainable energy for all: From evidence to inclusive policies J Clancy, A Barnett, E Cecelski, S Pachauri, S Dutta, S Oparaocha, ... ENERGIA the International Network on Gender and Sustainable Energy. , 2019 2019 Citations: 30
Gender and fossil fuel subsidy reform: An audit of data on energy subsidies, energy use and gender in Indonesia N Kusumawardhani, R Hilman, T Laan, N Warda, RI Nurbani Communications Section Working Papers , 2017 2017 Citations: 9
Socioeconomic biases in urban mixing patterns of us metropolitan areas R Millanida Hilman, G Iñiguez, M Karsai arXiv e-prints, arXiv: 2110.04183 , 2021 2021 Citations: 1
Cascading Effects and Optimal Network Configuration Design for Liner Shipping R Hilman 2018 Citations: 1
The Welfare Impacts of Price Equalisation in Energy Market Integration T Widodo, MH Rafiazka ERIA Research Project Report. Economic Research Institute for ASEAN and East … , 2014 2014 Citations: 1
Stratified mobility, segregated boundary, and socioeconomic mixing in New York RM Hilman Computational Urban Science 5 (1), 1-16 , 2025 2025
Mobility Segregation Dynamics and Residual Isolation During Pandemic Interventions RM Hilman, M García-Herranz, V Sekara, M Karsai arXiv preprint arXiv:2310.03557 , 2023 2023
Mobility Segregation Dynamics and Residual Isolation During Pandemic Interventions R Millanida Hilman, M García-Herranz, V Sekara, M Karsai arXiv e-prints, arXiv: 2310.03557 , 2023 2023
The Ultra Large Container Vessel: a blessing or a curse R Dekker, J Mulder, RM Hilman, N Milovanovic Keeping the focus on sustainability: a challenge for governance Liber … , 2023 2023
Structure and Dynamics of Mobility Segregation and Spatial Diversity in Cities RM Hilman Central European University , 2023 2023
Socioeconomic Segregation in Urban Mobility RM Hilman Social Dynamics: Inequalities, Integration, Mobility, and Migration , 2020 2020
Socioeconomic Segregation in Spatiotemporal Urban Mobility RM Hilman Conference on Complex Systems CCS2020 3 (Complex Systems for the Most … , 2020 2020
The Dynamics of Mass and Elite in Dutch Dividend Tax Discourse RM Hilman Women in Networks (WiN) COSTNET , 2019 2019
A Robust Network Design for Synchromodal Transportation RM Hilman COSTNET19 Conference , 2019 2019
Gender and Fossil Fuel Subsidy Reform in Indonesia: An Audit of Data N Kusumawardhani, R Hilman, T Laan, N Warda, R Nurbani < bound method Organization. get_name_with_acronym of< Organization … , 2017 2017
Global Production Sharing in Machinery and Transport Equipment Industry in the ASEAN4 R Millanida Hilman, T Widodo 2015
FROM BEANS TO LATTE: MAPPING INDONESIAN POSITION IN GLOBAL COFFEE CHAIN RM HILMAN Universitas Gadjah Mada , 2015 2015
Determinants of Trade Flows in ASEAN-4 Machinery and Transport Equipment Industry: Global Production Sharing Insight RM HILMAN Universitas Gadjah Mada , 2013 2013
