Geospatial big data: Survey and challenges

J Wu, W Gan, HC Chao… - IEEE Journal of Selected …, 2024 - ieeexplore.ieee.org
In recent years, geospatial big data (GBD) has obtained attention across various disciplines,
categorized into big Earth observation data and big human behavior data. Identifying …

A survey of multi-dimensional indexes: past and future trends

M Li, H Wang, H Dai, M Li, R Gu, F Chen… - … on Knowledge and …, 2024 - ieeexplore.ieee.org
Index structures are powerful tools for improving query performance and reducing disk
access in database systems. Multi-dimensional indexes, in particular, are used to filter …

HCIndex: a Hilbert-Curve-based clustering index for efficient multi-dimensional queries for cloud storage systems

X Wang, Y Sun, Q Sun, W Lin, JZ Wang, W Li - Cluster Computing, 2023 - Springer
With the rapid development of the Internet of Things and cloud computing, HBase has
become a good choice for massive data storage, and is efficient in reading and writing data …

Fast 3D visualization of massive geological data based on clustering index fusion

YH Zhang, C Wen, M Zhang, K **e, JB He - IEEE Access, 2022 - ieeexplore.ieee.org
With the development of visualization technology, the amount of geological data information
is increasing, and the interactive display of big data faces severe challenges. Because …

[HTML][HTML] Hiindex: An efficient spatial index for rapid visualization of large-scale geographic vector data

Z Liu, L Chen, A Yang, M Ma, J Cao - ISPRS International Journal of Geo …, 2021 - mdpi.com
In the big data era, rapid visualization of large-scale vector data has become a serious
challenge in Geographic Information Science (GIS). To fill the gap, we propose HiIndex, a …

Exact, fast and scalable parallel dbscan for commodity platforms

S Kumari, P Goyal, A Sood, D Kumar… - Proceedings of the 18th …, 2017 - dl.acm.org
DBSCAN is one of the most popular density-based clustering algorithm capable of
identifying arbitrary shaped clusters and noise. It is computationally expensive for large data …

Study on Spatio-Temporal Indexing Model of Geohazard Monitoring Data Based on Data Stream Clustering Algorithm

J Li, W Song, J Chen, Q Wei, J Wang - ISPRS International Journal of Geo …, 2024 - mdpi.com
Yunnan Province, residing in the eastern segment of the Qinghai–Tibet Plateau and the
western part of the Yunnan–Guizhou Plateau, faces significant challenges due to its intricate …

PLGP: point cloud inpainting by patch-based local geometric propagating

Y Huang, C Yang, Y Shi, H Chen, W Yan, Z Chen - The Visual Computer, 2023 - Springer
The booming of LiDAR technologies has made the point cloud become a prevailing data
format for 3D object representation. However, point cloud usually exhibits holes of data loss …

[HTML][HTML] QRB-tree indexing: optimized spatial index expanding upon the QR-tree index

J Yu, Y Wei, Q Chu, L Wu - ISPRS International Journal of Geo …, 2021 - mdpi.com
Support for region queries is crucial in geographic information systems, which process exact
queries through spatial indexing to filter features and subsequently refine the selection …

A Survey and Experimental Review on Data Distribution Strategies for Parallel Spatial Clustering Algorithms

JS Challa, N Goyal, A Sharma, N Sreekumar… - Journal of Computer …, 2024 - Springer
Abstract The advent of Big Data has led to the rapid growth in the usage of parallel
clustering algorithms that work over distributed computing frameworks such as MPI …