Spatio-Temporal Modeling on Village Land Feature Change

Abstract:

Village land continually changes in the real world. In order to keep the data up-to-date, data producers need update the data frequently. When the village land data are updated, the update information must be dispensed to the end-users to keep their client-databases current. In the real world, village land changes in many forms. Identifying the change type of village land (i.e. captures the semantics of change) and representing them in the data world can help end-users understand the change commonly and be convenient for end-users to integrate these change information into their databases. This work focuses on the model of the spatio-temporal change. A three-tuple model CAR for representing the spatio-temporal change is proposed based on the village land feature set before change and the village land feature set after change, change type and rules. In this model, the C denotes the change type. A denotes the attribute set; R denotes the judging rules of change type. The rule is described by the IF－THEN expressions. By the operations between R and A, the C is distinguished. This model overcomes the limitations of current methods. And more, the rules in this model can be easy realized in computer program.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2721-2725
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2721
• Online since: October 2012
• Authors: Hua Ji Zhu, Hua Rui Wu
• Keywords: Knowledge Representation, Semantics, Spatio-Temporal Change, Three-Tuple Model

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