Implementasi Operator Perbandingan Temporal dan Operator Spasial pada Data Spatiotemporal

Abstract

Spatio-temporal data models and query languages have received much attention in the database research community because of their practical importance and the interesting technical challenges they pose. Much previous work focuses on either temporal information or spatial information. In this research, we will learn about information retrieval using temporal and spatial in spatio-temporal data. The method in this research consists of data model, design temporal operator, design spatial operator, design spatio-temporal operator and testing. Temporal operators that used in this research are before, after, during, precedes, follows, starts, finishes, equal, meet and overlap. While spatial operators that used are equal, overlap, contain, disjoint, meet, adjacent and commonborder. In spatial model, the method use triangles to represent polygons and is called The Directed Triangulation. A polygon having n vertexes can be decomposed into n-2 triangles. Decomposing a polygon into a set of triangles makes determine spatial relationships between two polygon can be done more easyly. This research concludes that by using spatio-temporal operators, information retrieval will produce more specific information than that of using without spatio-temporal query. Spatial operators can give information about relationship between two region or more and temporal operator can give information about time.