|
|
|
|
|
Hyung-Ju Cho
Given a set of facilities F and a query point q, a k-farthest neighbor (kFN) query returns the k farthest facilities f1,f1,⋯,fk" role="presentation">??1,??1,?,????f1,f1,?,fk
f
1
,
f
1
,
?
,
f
k
from q. This study considers the moving k-farthe...
ver más
|
|
|
|
|
|
|
|
|
|
|
Panagiotis Moutafis, George Mavrommatis, Michael Vassilakopoulos and Antonio Corral
Aiming at the problem of spatial query processing in distributed computing systems, the design and implementation of new distributed spatial query algorithms is a current challenge. Apache Spark is a memory-based framework suitable for real-time and batc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Louai Alarabi, Saleh Basalamah, Abdeltawab Hendawi and Mohammed Abdalla
The rapid spread of infectious diseases is a major public health problem. Recent developments in fighting these diseases have heightened the need for a contact tracing process. Contact tracing can be considered an ideal method for controlling the transmi...
ver más
|
|
|
|
|
|
|
|
|
|
|
I-Fang Su, Ding-Li Chen, Chiang Lee and Yu-Chi Chung
In many spatial applications, users are only interested in data objects that are visible to them. Hence, finding visible data objects is an important operation in these real-world spatial applications. This study addressed a new type of spatial query, th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wei Huang, Wen Zhang, Dongying Zhang and Lingkui Meng
|
|
|
|
|
|
|
|
|
|
|
Pornrawee Tatit, Kiki Adhinugraha and David Taniar
Using spatial data in mobile applications has grown significantly, thereby empowering users to explore locations, navigate unfamiliar areas, find transportation routes, employ geomarketing strategies, and model environmental factors. Spatial databases ar...
ver más
|
|
|
|
|
|
|
|
|
|
|
Debajyoti Ghosh, Jagan Sankaranarayanan, Kiran Khatter and Hanan Samet
Many spatial applications benefit from the fast answering to a seemingly simple spatial query: ?Is a point of interest (POI) ?in-path? to the shortest path between a source and a destination?? In this context, an in-path POI is one that is either on the ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiangqiang Min, Dieter Pfoser, Andreas Züfle and Yehua Sheng
The range query is one of the most important query types in spatial data processing. Geographic information systems use it to find spatial objects within a user-specified range, and it supports data mining tasks, such as density-based clustering. In many...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dongming Guo and Erling Onstein
Geospatial information has been indispensable for many application fields, including traffic planning, urban planning, and energy management. Geospatial data are mainly stored in relational databases that have been developed over several decades, and mos...
ver más
|
|
|
|
|
|
|
|
|
|
|
Damião Ribeiro de Almeida, Cláudio de Souza Baptista, Fabio Gomes de Andrade and Amilcar Soares
Trajectory data allow the study of the behavior of moving objects, from humans to animals. Wireless communication, mobile devices, and technologies such as Global Positioning System (GPS) have contributed to the growth of the trajectory research field. W...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sinan Keskin and Adnan Yazici
Nowadays, with the rise of sensor technology, the amount of spatial and temporal data is increasing day by day. Modeling data in a structured way and performing effective and efficient complex queries has become more essential than ever. Online analytica...
ver más
|
|
|
|
|
|
|
|
|
|
|
Irya Wisnubhadra, Safiza Kamal Baharin, Nurul A. Emran and Djoko Budiyanto Setyohadi
The accessibility of devices that track the positions of moving objects has attracted many researchers in Mobility Online Analytical Processing (Mobility OLAP). Mobility OLAP makes use of trajectory data warehousing techniques, which typically include a ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Markus Wilhelm Jahn and Patrick Erik Bradley
In order to perform topological queries on geographic data, it is necessary to first develop a topological access method (TOAM). Using the fact that any (incidence or other binary) relation produces a topology which includes the common usage of topology ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yuan-Ko Huang
The location-based aggregate queries, consisting of the shortest average distance query (SAvgDQ), the shortest minimal distance query (SMinDQ), the shortest maximal distance query (SMaxDQ), and the shortest sum distance query (SSumDQ) are new types of lo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ze Deng, Meng Wang, Lizhe Wang, Xiaohui Huang, Wei Han, Junde Chu and Albert Y. Zomaya
Current social-network-based and location-based-service applications need to handle continuous spatial approximate keyword queries over geo-textual streaming data of high density. The continuous query is a well-known expensive operation. The optimization...
ver más
|
|
|
|
|
|
|
|
|
|
|
Karima Khettabi, Zineddine Kouahla, Brahim Farou, Hamid Seridi and Mohamed Amine Ferrag
Internet of Things (IoT) systems include many smart devices that continuously generate massive spatio-temporal data, which can be difficult to process. These continuous data streams need to be stored smartly so that query searches are efficient. In this ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Imene Bareche and Ying Xia
The magnitude of highly dynamic spatial data is expanding rapidly due to the instantaneous evolution of mobile technology, resulting in challenges for continuous queries. We propose a novel indexing approach model, namely, the Velocity SpatioTemporal ind...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jernej Tekavec and Anka Lisec
This study is focused on indoor navigation network extraction for navigation applications based on available 3D building data and using SFCGAL library, e.g. simple features computational geometry algorithms library. In this study, special attention is gi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Chunyao Qian, Chao Yi, Chengqi Cheng, Guoliang Pu, Xiaofeng Wei and Huangchuang Zhang
With the rapid development of global positioning technologies and the pervasiveness of intelligent mobile terminals, trajectory data have shown a sharp growth trend both in terms of data volume and coverage. In recent years, increasing numbers of LBS (lo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mengyu Ma, Ye Wu, Wenze Luo, Luo Chen, Jun Li and Ning Jing
Buffer analysis, a fundamental function in a geographic information system (GIS), identifies areas by the surrounding geographic features within a given distance. Real-time buffer analysis for large-scale spatial data remains a challenging problem since ...
ver más
|
|
|
|
|
|