Results 271 to 280 of about 24,126 (306)

Provenance in Spatial Queries

Proceedings of the 26th International Database Engineered Applications Symposium, 2022
Paulo Sérgio Pintor, Rogério Luís de C. Costa, José Manuel Moreira   +2 more
openaire   +1 more source

Query rewriting for semantic query optimization in spatial databases

GeoInformatica, 2019
Query processing is an important challenge for spatial databases due to the use of complex data types that represent spatial attributes. In particular, due to the cost of spatial joins, several optimization algorithms based on indexing structures exist.
Eduardo Mella, M. Andrea Rodríguez, Loreto Bravo, Diego Gatica   +3 more
openaire   +1 more source

Integrated query processing strategies for spatial path queries

Proceedings 13th International Conference on Data Engineering, 2002
Investigates optimization strategies for processing path queries with embedded spatial constraints, such as avoiding areas with certain characteristics. To resolve complex spatial constraints during path finding, we consider two decisions: (1) the spatial relation operations (e.g. intersection) between areas and links can be pre-processed or intermixed
Yun-Wu Huang, Ning Jing, Elke A. Rundensteiner   +2 more
openaire   +1 more source

Spatial Query Optimization With Learning

Proceedings of the VLDB Endowment
Query optimization is a key component in database management systems (DBMS) and distributed data processing platforms. Recent research in the database community incorporated techniques from artificial intelligence to enhance query optimization. Various learning models have been extended and applied to the query optimization tasks, including query ...
Xin Zhang 0119, Ahmed Eldawy
openaire   +1 more source

Integrating non-spatial preferences into spatial location queries

Proceedings of the 26th International Conference on Scientific and Statistical Database Management, 2014
Increasing volumes of geo-referenced data are becoming available. This data includes so-called points of interest that describe businesses, tourist attractions, etc. by means of a geo-location and properties such as a textual description or ratings.
Qiang Qu 0001, Siyuan Liu 0001, Bin Yang 0002, Christian S. Jensen   +3 more
openaire   +1 more source

Answering why-not questions on top-k augmented spatial keyword queries

Knowledge-Based Systems, 2021
Yanhong Li, Wang Zhang, Changyin Luo
exaly  

Forward/Backward and Content Private DSSE for Spatial Keyword Queries

IEEE Transactions on Dependable and Secure Computing, 2023
Jianfeng Ma, Ximeng Liu, Yinbin Miao
exaly  

Spatial Queries

2003
Maytham H. Safar, Cyrus Shahabi
openaire   +1 more source

Spatial Queries

2012
HweeHwa Pang, Kian-Lee Tan
openaire   +1 more source

Efficient computation of spatial queries over points stored in k2-tree compact data structures

Theoretical Computer Science, 2021
Mónica Caniupán, Rodrigo Torres-Avilés   +1 more
exaly