Spatio-temporal Object Modeling in Fuzzy Topological Space
نویسندگان
چکیده
Fuzzy spatial objects have become more and more important in GIS applications. When spatial phenomena are generalized by the crisp form, a lot of quantitative information is lost. Land cover as a fuzzy spatio-temporal object should be modeled in a fuzzy framework. In addition, topological relations between fuzzy spatial objects are much more complicated than that are defined between crisp spatial objects. The purpose of this paper is to construct topological relationships; as one of the most important characteristics of spatio-temporal objects; based on fuzzy logic with its applications to land cover. An area in Tehran which has lots of land cover types was considered and topological relationships between them were constructed both spatially and temporally.
منابع مشابه
Modeling Topological Relationships between Fuzzy Spatio-Temporal Objects
Topological relationships between spatio-temporal objects are the most fundamental elements in spatio-temporal database systems, GIS, and image database systems. The research issue of modeling topological relationships has increasingly attracted attention, especially for querying of spatio-temporal objects and reasoning of topological relationships. Currently, topological relationship operating...
متن کاملSpatio-temporal Topological Relationships between Land Parcels in Cadastral Database
There are complex spatio-temporal relationships among cadastral entities. Cadastral spatio-temporal data model should not only describe the data structure of cadastral objects, but also express cadastral spatio-temporal relationships between cadastral objects. In the past, many experts and scholars have proposed a variety of cadastral spatio-temporal data models, but few of them concentrated on...
متن کاملDESIGNING OPERATORS FOR AN OBJECT - ORIENTED SPATIO - TEMPORAL DATA MODEL Ale RAZA
A spatio-temporal data model consists of data structure, operations and consistency rules. Designing and implementing such model has been a challenging task because of its complexity. This paper focuses on operators for a spatio-temporal model. Two types of operators can be contemplated in this model, i.e., static and dynamic operators. Dynamic operators such as create, kill, destroy and reinca...
متن کاملSpatio-Temporal Configurations of Dynamics Points in a 1D Space
This paper describes a spatio-temporal configurations building approach, which has been applied to dynamics points in 1-dimensional space. In this approach, a temporal logic, Allen’s time intervals, is crossed with a new spatial logic based on topology called spatial states. These spatial states are derived from topological relationships and a new concept of degenerate topological relationships...
متن کاملModeling of spatio-temporal of albedo over Iran
The aim of this study is modeling spatiotemporal variations of albedo. This study was conducted using simultaneous effects of several components, such as wetness of surface layer of soil, cloudiness, topography and vegetation density (NDVI), using MEERA2 model with a resolution of 50 in 50 km during 2000-2010 in Iran. The results of spatial analysis of albedo values in Iran showed that the high...
متن کامل