基于风险地形建模的毒品犯罪风险评估和警务预测
张宁, 王大为

Drug-related crime risk assessment and predictive policing based on risk terrain modeling
Ning ZHANG, Dawei WANG
图4 2015年 N市毒品犯罪核密度分析图
Fig.4 Kernel density analysis of drug crimes in N City, 2015