[HTML][HTML] X-index: A novel flow-based locational measure for quantifying centrality

X Wang, T Pei, C Song, J Chen, Y Liu, S Guo… - International Journal of …, 2023 - Elsevier
The centrality of a place reflects its relative importance in serving other places, and
quantifying centrality is a prerequisite for assessing the urban spatial structure and facilitates …

A space-time flow LISA approach for panel flow data

R Tao, Y Chen, JC Thill - Computers, Environment and Urban Systems, 2023 - Elsevier
Spatial flow data represent meaningful spatial interaction (SI) phenomena between
geographic regions that are often highly dynamic. However, most existing flow analytical …

Strength-weighted flow cluster method considering spatiotemporal contiguity to reveal interregional association patterns

H Zhang, X Zhou, X Ye, G Tang, H Wang… - GIScience & Remote …, 2023 - Taylor & Francis
One of the most crucial topics in spatial interaction studies is mining patterns from extensive
origin-destination (OD) flow data to capture interregional associations. However, prevailing …

Detecting spatial flow outliers in the presence of spatial autocorrelation

J Cai, MP Kwan - Computers, Environment and Urban Systems, 2022 - Elsevier
Spatial flow outlier (SFO) detection aims to discover spatial flows whose non-spatial attribute
values are significantly different from their neighborhoods. Different from spatial flow …

Spatiotemporal Flow L-function: a new method for identifying spatiotemporal clusters in geographical flow data

X Yan, T Pei, H Shu, C Song, M Wu… - International Journal of …, 2023 - Taylor & Francis
A geographical flow (hereafter flow) is defined as a movement between locations at two
different times. A group of spatiotemporal flows can be viewed as a cluster if their origins and …

Discovering co-location patterns in multivariate spatial flow data

J Cai, MP Kwan - International Journal of Geographical Information …, 2022 - Taylor & Francis
Spatial flow co-location patterns (FCLPs) are important for understanding the spatial
dynamics and associations of movements. However, conventional point-based co-location …

I-index for quantifying an urban location's irreplaceability

X Wang, J Chen, T Pei, C Song, Y Liu, H Shu… - … Environment and Urban …, 2021 - Elsevier
A location's irreplaceability refers to the degree of difficulty with which it can be replaced by
other locations. For example, the irreplaceability of airports, hospitals, and ATMs varies, and …

Uncovering human behavioral heterogeneity in urban mobility under the impacts of disruptive weather events

Z Gong, Z Deng, J Tang, H Zhao, Z Liu… - International Journal of …, 2024 - Taylor & Francis
Understanding the response of human mobility to disruptive weather events is beneficial for
the development of urban risk mitigation and emergency response policies, thus enhancing …

SNN_flow: a shared nearest-neighbor-based clustering method for inhomogeneous origin-destination flows

Q Liu, J Yang, M Deng, C Song… - International Journal of …, 2022 - Taylor & Francis
Identifying clusters from individual origin–destination (OD) flows is vital for investigating
spatial interactions and flow mapping. However, detecting arbitrarily-shaped and non …

Deciphering flow clusters from large-scale free-floating bike sharing journey data: a two-stage flow clustering method

W Chen, X Liu, X Chen, L Cheng, J Chen - Transportation, 2023 - Springer
Extracting flow clusters consisting of many similar origin–destination (OD) trips is essential to
uncover the spatio-temporal interactions and mobility patterns in the free-floating bike …