基于知识图谱的中国城市矿产研究进展
魏伟, 李金铠, 郭崇慧

Evolution of urban mineral resources research based on knowledge maps
WEI Wei, LI Jinkai, GUO Chonghui
图5 2010—2018年基于AP聚类的核心主题演化情况
Figure 5 Evolution of the core topics based on affinity propagation (AP) clustering, 2010-2018