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By using the data of city function of Shandong Peninsula Urban Agglomeration (SDPUA) in 2004, 2009 and 2014, Location quotient, K-means clustering algorithm and ARCGIS10.0 were applied to analyze the functional structure evolution of SDPUA. The results show that the cities functions and their evolution exist obvious regional differences. for example the dominant and strong functions of Jinan are culture,...
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