Add to ORKGTo process global query under distributed GIS, a novel algorithm named hybrid heuristic optimization algorithm (HHOA) designed for distributed spatial query optimization was derived in this paper. The HHOA algorithm is based on spatial query language (SQL) equivalence transformation and is designed in a hybrid join strategy with both direct join and semi-join. The characteristics of spatial query are taken into account as well. Based on HHOA an actual distributed spatial query processor was accomplished, which indicates that the algorithm provides an effective way for distributed spatial query processing and optimization.EI0101013-10181
The query optimization problem inlarge-scale distributed databases is NPnature and difficult to solv...
A distributed query processing strategy, which is a key performance determinant in accessing distrib...
Abstract. Query optimization is the most critical phase in query processing. In this paper, we try t...
基于新一代GIS技术体系的空间数据的分布特点,提出了一种新的应用于分布式空间查询处理的混合启发式优化算法(HHOA).该算法参考了传统的基于关系代数变换的启发式优化算法,同时为了克服单调采用直接连接或...
This paper introduced a SQL level approach to resolve global spatial query in Web based heterogeneou...
Abstract. Distributed database system technology is one of the major developments in information tec...
Spatial data is being produced at increasing rates from various sources such as mobile applications ...
The spatial query has been processed in two steps, the filter step and the refinement step, due to a...
Over recent years, massive geospatial information has been produced at a prodigious rate, and is usu...
The emergence of geospatial big data has opened up new avenues for identifying urban environments. A...
AbstractA spatial database system is a database system with additional capabilities for handling spa...
Query processing is an important concern in the field of distributed databases. The main problem is:...
Les masses de données scientifiques générées par les moyens d'observation modernes, dont l’observati...
The user of a Geographical Information System is not limited to conventional spatial selections and ...
Distributed database technology is expected to have a significant impact on data processing in the u...
The query optimization problem inlarge-scale distributed databases is NPnature and difficult to solv...
A distributed query processing strategy, which is a key performance determinant in accessing distrib...
Abstract. Query optimization is the most critical phase in query processing. In this paper, we try t...
基于新一代GIS技术体系的空间数据的分布特点,提出了一种新的应用于分布式空间查询处理的混合启发式优化算法(HHOA).该算法参考了传统的基于关系代数变换的启发式优化算法,同时为了克服单调采用直接连接或...
This paper introduced a SQL level approach to resolve global spatial query in Web based heterogeneou...
Abstract. Distributed database system technology is one of the major developments in information tec...
Spatial data is being produced at increasing rates from various sources such as mobile applications ...
The spatial query has been processed in two steps, the filter step and the refinement step, due to a...
Over recent years, massive geospatial information has been produced at a prodigious rate, and is usu...
The emergence of geospatial big data has opened up new avenues for identifying urban environments. A...
AbstractA spatial database system is a database system with additional capabilities for handling spa...
Query processing is an important concern in the field of distributed databases. The main problem is:...
Les masses de données scientifiques générées par les moyens d'observation modernes, dont l’observati...
The user of a Geographical Information System is not limited to conventional spatial selections and ...
Distributed database technology is expected to have a significant impact on data processing in the u...
The query optimization problem inlarge-scale distributed databases is NPnature and difficult to solv...
A distributed query processing strategy, which is a key performance determinant in accessing distrib...
Abstract. Query optimization is the most critical phase in query processing. In this paper, we try t...