Spatial analysis of outdoor indecent assault risk: a study using ambient population data

Abstract Spatiotemporal data on ambient populations have recently become widely available. Although previous studies have indicated a link between the spatial patterns of crime occurrence and ambient population distribution, more detailed information, such as the population most likely to be victims...

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Main Authors: Hiroki M. Adachi, Tomoki Nakaya
Format: Article
Language:English
Published: BMC 2024-04-01
Series:Crime Science
Subjects:
Online Access:https://doi.org/10.1186/s40163-024-00205-x
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author Hiroki M. Adachi
Tomoki Nakaya
author_facet Hiroki M. Adachi
Tomoki Nakaya
author_sort Hiroki M. Adachi
collection DOAJ
description Abstract Spatiotemporal data on ambient populations have recently become widely available. Although previous studies have indicated a link between the spatial patterns of crime occurrence and ambient population distribution, more detailed information, such as the population most likely to be victims by gender and age group, could better predict the risk of crime occurrence. Therefore, this study aimed to analyze the risk of indecent assault, a typical crime with a high number of young female victims, in southern Kyoto Prefecture. We utilized population distribution by gender and age group at different times of the day. After extracting daily patterns (factors) of the population using non-negative matrix factorization, we statistically modeled the risk of indecent assault using a spatial conditional autoregressive model. The results showed that the model, which considered a spatiotemporal ambient population, demonstrated superior performance during nighttime hours. Furthermore, by interpreting the factors significantly associated with the risk of crime occurrence, the findings provided valuable insights into local crime prevention measures that consider daily temporal changes in the gender and age-group composition of individuals present in a specific area.
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spelling doaj.art-1d06bb9ffe0349c98934d30539ef74da2024-04-07T11:11:20ZengBMCCrime Science2193-76802024-04-0113111310.1186/s40163-024-00205-xSpatial analysis of outdoor indecent assault risk: a study using ambient population dataHiroki M. Adachi0Tomoki Nakaya1Department of Frontier Science for Advanced Environment, Graduate School of Environmental Studies, Tohoku UniversityDepartment of Frontier Science for Advanced Environment, Graduate School of Environmental Studies, Tohoku UniversityAbstract Spatiotemporal data on ambient populations have recently become widely available. Although previous studies have indicated a link between the spatial patterns of crime occurrence and ambient population distribution, more detailed information, such as the population most likely to be victims by gender and age group, could better predict the risk of crime occurrence. Therefore, this study aimed to analyze the risk of indecent assault, a typical crime with a high number of young female victims, in southern Kyoto Prefecture. We utilized population distribution by gender and age group at different times of the day. After extracting daily patterns (factors) of the population using non-negative matrix factorization, we statistically modeled the risk of indecent assault using a spatial conditional autoregressive model. The results showed that the model, which considered a spatiotemporal ambient population, demonstrated superior performance during nighttime hours. Furthermore, by interpreting the factors significantly associated with the risk of crime occurrence, the findings provided valuable insights into local crime prevention measures that consider daily temporal changes in the gender and age-group composition of individuals present in a specific area.https://doi.org/10.1186/s40163-024-00205-xStreet crimeAmbient populationMobile spatial statisticsNon-negative matrix factorizationConditional autoregressive model
spellingShingle Hiroki M. Adachi
Tomoki Nakaya
Spatial analysis of outdoor indecent assault risk: a study using ambient population data
Crime Science
Street crime
Ambient population
Mobile spatial statistics
Non-negative matrix factorization
Conditional autoregressive model
title Spatial analysis of outdoor indecent assault risk: a study using ambient population data
title_full Spatial analysis of outdoor indecent assault risk: a study using ambient population data
title_fullStr Spatial analysis of outdoor indecent assault risk: a study using ambient population data
title_full_unstemmed Spatial analysis of outdoor indecent assault risk: a study using ambient population data
title_short Spatial analysis of outdoor indecent assault risk: a study using ambient population data
title_sort spatial analysis of outdoor indecent assault risk a study using ambient population data
topic Street crime
Ambient population
Mobile spatial statistics
Non-negative matrix factorization
Conditional autoregressive model
url https://doi.org/10.1186/s40163-024-00205-x
work_keys_str_mv AT hirokimadachi spatialanalysisofoutdoorindecentassaultriskastudyusingambientpopulationdata
AT tomokinakaya spatialanalysisofoutdoorindecentassaultriskastudyusingambientpopulationdata