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Compact Representation of Spatial Hierarchies and Topological Relationships

Citation Author(s):
José Fuentes-Sepúlveda, Diego Gatica, Gonzalo Navarro, M. Andrea Rodríguez, Diego Seco
Submitted by:
Jose Fuentes-Se...
Last updated:
1 March 2021 - 8:48am
Document Type:
Video
Document Year:
2021
Event:
Presenters Name:
Diego Gatica
Categories:
Keywords:

Abstract 

Abstract: 

The topological model for spatial objects identifies common boundaries between regions, explicitly storing adjacency relations, which not only improves the efficiency of topology-related queries, but also provides advantages such as avoiding data duplication and facilitating data consistency. Recently, a compact representation of the topological model based on planar graph embeddings was proposed. In this article, we provide an elegant generalization of such a representation to support hierarchies of vector objects, which better fits the multi-granular nature of spatial data, such as the political and administrative partition of a country. This representation adds a small space on top of the succinct base representation of each granularity, while efficiently answering new topology-related queries between objects not necessarily at the same level of granularity.

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Presentacion_DCC.pdf

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