Rogério Luís C. Costa
ABSTRACT
Moving region is an abstraction used to represent the spatio-temporal behavior of real-world phenomena in database systems. The most common approach to model moving regions uses geometries to represent their position and shape at different times (observations), and interpolation functions to generate the evolution of the geometries between observations.
Several region interpolation methods have been proposed in the databases literature, but as there is no suitable method for all use cases, users must select the most adequate algorithm to represent each region by visual inspection. This can be infeasible when dealing with large datasets.
This paper presents the first steps towards a system that suggests which methods (and configurations) can generate representations fitting the requirements of a particular application. It includes an abstract specification of user-defined rules on the spatio-temporal evolution of moving regions to assess the suitability of region interpolation functions, a discussion on optimization strategies for efficient implementation of the rules and illustrative examples using real-world data to show how to use this approach to select the best methods to represent a spatio-temporal phenomena.
- Rogério Luís C. Costa, Enrico Miranda, Paulo Dias, and José Moreira. 2020. Evaluating Preprocessing and Interpolation Strategies to Create Moving Regions from Real-World Observations. SIGAPP Appl. Comput. Rev. 20, 2 (July 2020), 46--58.Google Scholar
Digital Library
- Rogério Luís C. Costa, Enrico Miranda, Paulo Dias, and José Moreira. 2020. Sampling Strategies to Create Moving Regions from Real World Observations. In Proceedings of the 35th Annual ACM Symposium on Applied Computing (SAC '20). Association for Computing Machinery, New York, NY, USA, 609--616.Google ScholarDigital Library
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- José Duarte, Bruno Silva, José Moreira, Paulo Dias, Enrico Miranda, and Rogério L. C. Costa. 2019. Towards a Qualitative Analysis of Interpolation Methods for Deformable Moving Regions. In Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (SIGSPATIAL '19). Association for Computing Machinery, New York, NY, USA, 592--595.Google Scholar
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Index Terms
- Towards the automatic selection of moving regions representation methods
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