Police patrol is a complex process. While on patrol, police officers must balance many
intersecting responsibilities. Most notably, police must proactively patrol and prevent …

Directional data is ubiquitious in science. Due to its circular nature such data cannot be
analyzed with commonly used statistical techniques. Despite the rapid development of …

The special nature of circular data means that conventional methods suitable for the
analysis of linear data do not apply. In this article, we survey a range of methods that have …

Objectives: There is a growing interest in the relationship between greenspace and crime,
yet how particular greenspace types encourage or inhibit the timing and types of …

目前常用的洪水遭遇风险分析方法尚局限于简单的统计计算, 无法对百年一遇或千年一遇等设计
洪水的遭遇风险进行定量估算. 本文引入混合von Mises 分布拟合长江上游与清江年最大洪水 …

Nonparametric density and regression estimation methods for circular data are included in
the R package NPCirc. Specifically, a circular kernel density estimation procedure is …

This paper examines how hot spots shift by hour of day and day of week. Hot spot analysis is
more likely to have a substantial impact on crime patterns if spatiotemporal shifts are …

Objectives To test the accuracy of various methods previously proposed (and one new
method) to estimate offence times where the actual time of the event is not known. Methods …

Background Influenza is a global transmissible disease. Its dynamics is far better understood
in temperate climates than in the tropics. We aim to close this knowledge gap between …

Change and movement across space and over time are observed in our everyday lives, with
people commuting, traveling, communicating, moving, migrating, etc. Understanding how …