Multi-resolution spatio-temporal data mining for the study of air pollutant regionalization

Sheng Tun Li, Shih Wei Chou, Jeng Jong Pan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Spatio-temporal data mining involves exti-acting and analyzing useful information embedded in a large spatio - temporal database. Cluster analysis, one of the data mining techniques, provides the capabilip to investigate the spatio-temporal variation of data. Previous studies in cluster analysis indicate that the optimal number of clusters could be varied with the temporal scale of input data. This study employs multi-scale wavelet transforms and self-organizing map neural networks to mine air pollutant data. Experimental results show that regions determinedfrom wavelet transform approach can reduce the local small regions using a small scale input data and improve the over-smoothed regions using one large scale input data. The results of cluster analysis using data generated from discrete wavelet transform and continuous wavelet transform also discussed in this paper. Data generated from continuous wavelet transfovm provide detailed time-variation features that can be used to detect the air pollutant spatial variation in a selected time period.

Original languageEnglish
Title of host publicationProceedings of the 33rd Annual Hawaii International Conference on System Sciences, HICSS 2000
PublisherIEEE Computer Society
ISBN (Electronic)0769504930
Publication statusPublished - 2000
Event33rd Annual Hawaii International Conference on System Sciences, HICSS 2000 - Maui, United States
Duration: 2000 Jan 42000 Jan 7

Publication series

NameProceedings of the Annual Hawaii International Conference on System Sciences
Volume2000-January
ISSN (Print)1530-1605

Conference

Conference33rd Annual Hawaii International Conference on System Sciences, HICSS 2000
Country/TerritoryUnited States
CityMaui
Period00-01-0400-01-07

All Science Journal Classification (ASJC) codes

  • General Engineering

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