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Jianfei Wang and Wen Cao
In the era of big data, a significant volume of spatiotemporal data exists in a multiscale format, describing diverse phenomena in the objective world across different spatial and temporal scales. While existing methods focus on analyzing the features an...
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Ran Zhang, Lei Cao, Yiqing Liu, Ru Guo, Junjie Luo and Ping Shu
Old residential communities are integral parts of urban areas, with their environmental quality affecting residents? well-being. Spontaneous informal spaces (SIS) often emerge within these communities. These are predominantly crafted by the elderly using...
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Yanrong Liu, Guonian Lu, Zhongqiu Meng, Dashu Guo, Di Hu, Lei Zhu and Handong He
A structural landform is defined by its surface morphology, controlled by tectonics, lithology (arrangement and resistance), and folded structures, and demonstrated by the characteristics and relationships between geological and geomorphic elements. It i...
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Fernando Díaz-del-Río, Pablo Sanchez-Cuevas, María José Moron-Fernández, Daniel Cascado-Caballero, Helena Molina-Abril and Pedro Real
Relating image contours and regions and their attributes according to connectivity based on incidence or adjacency is a crucial task in numerous applications in the fields of image processing, computer vision and pattern recognition. In this paper, the c...
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Yongjie Liu, Yu Jiang and Hengnian Li
We investigate the topological types and bifurcations of periodic orbits in the gravitational field of irregular bodies by the well-known two parameter analysis method. Results show that the topological types of periodic orbits are determined by the loca...
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Min Li, Ting Wu, Weitao Li, Chun Wang, Wen Dai, Xu Su and Yuanyuan Zhao
A terrain skeleton determines the overall structure and characteristics of the terrain and indicates the presence of significant terrain features, such as ridges and valleys. It plays an important role in terrain representation and reconstruction, hydrol...
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Rong Wang, Haowen Yan and Xiaomin Lu
Quantitative relations between topological similarity degree and map scale change of multi-scale contour clusters are vital to the automation of map generalization. However, no method has been proposed to calculate the relations. This paper aims at filli...
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Jinming Zhang, Xun Wang, Lianrui Xu and Xin Zhang
Commonly used robot map models include occupancy grid maps, topological maps, and semantic maps. Among these, an occupancy grid map is mainly represented as a quadrilateral grid. This paper proposes an occupancy information grid for intelligent robots by...
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Baihan Lin
The absence of a conventional association between the cell?cell cohabitation and its emergent dynamics into cliques during development has hindered our understanding of how cell populations proliferate, differentiate, and compete (i.e., the cell ecology)...
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Xiaoguang Zhou, Hongyuan He, Dongyang Hou, Rui Li and Heng Zheng
Refined topological relations play an important role in spatial database quality control. Currently, there is no unified and reasonable method to represent refined line/region and line/line topological relations in two-dimensional (2D) space. In addition...
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