179 citations · 461 across the 7 of their papers we have counts for
8 papers
Estimating a Large Drive Time Matrix between Zip Codes in the United States: A Differential Sampling Approach
Yujie Hu, Changzhen Wang, Ruiyang Li +1
Estimating a massive drive time matrix between locations is a practical but challenging task. The challenges include availability of reliable road network (including traffic) data,…
Local Indicator of Colocation Quotient with a Statistical Significance Test: Examining Spatial Association of Crime and Facilities
Fahui Wang, Yujie Hu, Shuai Wang +1
Most existing point-based colocation methods are global measures (e.g., join count statistic, cross K function, and global colocation quotient). Most recently, a local indicator su…
Commuting Variability by Wage Groups in Baton Rouge 1990-2010
Yujie Hu, Fahui Wang, Chester Wilmot
Residential segregation recently has shifted to more class or income-based in the United States, and neighborhoods are undergoing significant changes such as commuting patterns ove…
Temporal Trends of Intraurban Commuting in Baton Rouge 1990-2010
Yujie Hu, Fahui Wang
Based on the 1990-2010 CTPP data in Baton Rouge, this research analyzes the temporal trends of commuting patterns in both time and distance. In comparison to previous work, commuti…
Decomposing Excess Commuting: A Monte Carlo Simulation Approach
Yujie Hu, Fahui Wang
Excess or wasteful commuting is measured as the proportion of actual commute that is over minimum (optimal) commute when assuming that people could freely swap their homes and jobs…
Automated Delineation of Hospital Service Areas and Hospital Referral Regions by Modularity Optimization
Yujie Hu, Fahui Wang, Imam Xierali
Objective. To develop an automated, data-driven, and scale-flexible method to delineate HSAs and HRRs that are up-to-date, representative of all patients, and have the optimal loca…
A Spatio-Temporal Kernel Density Estimation Framework for Predictive Crime Hotspot Mapping and Evaluation
Yujie Hu, Fahui Wang, Cecile Guin +1
Predictive hotspot mapping plays a critical role in hotspot policing. Existing methods such as the popular kernel density estimation (KDE) do not consider the temporal dimension of…
Fourier Analysis of an Expanded Gravity Model for Spatio-Temporal Interactions
Yanguang Chen, Fahui Wang
Fourier analysis and cross-correlation function are successfully applied to improving the conventional gravity model of interaction between cities by introducing a time variable to…