Spatiotemporal Data Modeling Based on XML
Advances in systems analysis, software engineering, and high performance computing book series · 2023
In this chapter, the authors propose a framework for representing spatiotemporal data in XML, specifically addressing the spatiotemporal changes of multiple objects. By utilizing this model, spatiotemporal data can be naturally represented in XML documents. Additionally, we leverage the nesting representation in XML to overcome the issues of generating new tuples and excessive redundancy found in traditional databases. This framework establishes a robust foundation for representing dynamic spatiotemporal changes. Additionally, the authors introduce spatiotemporal functions within XML, encompassing both spatiotemporal topological functions and spatiotemporal geometric functions. They explore spatiotemporal operations using XQuery, presenting the architecture of the querying process for spatiotemporal data. They illustrate how to query spatiotemporal data using XQuery and provide query cases that demonstrate the application of our proposed spatiotemporal functions. These findings demonstrate that complex queries can be expanded based on the primary query cases using these spatiotemporal functions.