Qi Zhou

TL;DR: This article describes an integrated approach to build a hierarchical structure of a road network for continuous multi-scale representation purposes, especially continuous selective omission of roads in a network.

TL;DR: A comparative analysis of 17 strategies, including 3 of the geometric approach, 1 of the thematic approach, and 13 of the hybrid approach for road network generalization purposes, indicates that if only the geometric Approach is considered, the every-best-fit strategy performs best; if thematic attributes are also added, road class can be more effective than road name.

TL;DR: This study aims to present an analysis of the evolution, completeness and spatial patterns of OSM building data in China across the years 2012 to 2017 using two quality indicators,OSM building count and OSMBuilding density, although a corresponding reference dataset for the whole country is not freely available.

TL;DR: Zhang et al. as mentioned in this paper constructed the methodology of an urban ecological security evaluation system based on the driver-pressure-state-impact-response (DPSIR) model and gray clustering method.

TL;DR: It is concluded that the building density indicator is a potential proxy for the quantitative completeness estimation of OSM building data in urban areas and the limitations of using this indicator were addressed.