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Kdv-explorer: A near real-time kernel density visualization system for spatial analysis
Chan, Tsz Nam1; Ip, Pak Lon2; U, Leong Hou2; Tong, Weng Hou2; Mittal, Shivansh3; Li, Ye2; Cheng, Reynold3
2021
Source PublicationProceedings of the VLDB Endowment
Volume14Issue:12Pages:2655-2658
Abstract

Kernel density visualization (KDV) is a commonly used visualization tool for many spatial analysis tasks, including disease outbreak detection, crime hotspot detection, and traffic accident hotspot detection. Although the most popular geographical information systems, e.g., QGIS, and ArcGIS, can also support this operation, these solutions are not scalable to generate a single KDV for datasets with million-scale data points, let alone to support exploratory operations (e.g., zoom in, zoom out, and panning operations) with KDV in near real-time (< 5 sec). In this demonstration, we develop a near real-time visualization system, called KDV-Explorer, that is built on top of our prior study on the efficient kernel density computation. Participants will be invited to conduct some kernel density analysis on three large-scale datasets (up to 1.3 million data points), including the traffic accident dataset, crime dataset and COVID-19 dataset. We will also compare the performance of our solution and the solutions in QGIS and ArcGIS.

DOI10.14778/3476311.3476312
URLView the original
Language英語English
Scopus ID2-s2.0-85116798412
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
Affiliation1.Hong Kong Baptist University, Hong Kong
2.University of Macau, Macao
3.The University of Hong Kong, Hong Kong
Recommended Citation
GB/T 7714
Chan, Tsz Nam,Ip, Pak Lon,U, Leong Hou,et al. Kdv-explorer: A near real-time kernel density visualization system for spatial analysis[J]. Proceedings of the VLDB Endowment,2021,14(12):2655-2658.
APA Chan, Tsz Nam,Ip, Pak Lon,U, Leong Hou,Tong, Weng Hou,Mittal, Shivansh,Li, Ye,&Cheng, Reynold.(2021).Kdv-explorer: A near real-time kernel density visualization system for spatial analysis.Proceedings of the VLDB Endowment,14(12),2655-2658.
MLA Chan, Tsz Nam,et al."Kdv-explorer: A near real-time kernel density visualization system for spatial analysis".Proceedings of the VLDB Endowment 14.12(2021):2655-2658.
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