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Estimation of missing values in air pollution data using single imputation techniques

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Main Authors: Norazian, Mohamed Noor, Shukri, Yahaya Ahmad, Azam, Ramli Nor, Mohd. Mustafa Al Bakri, Abdullah
Format: Article
Language:English
Published: Science Society of Thailand 2009
Subjects:
Air pollution
Imputation
Performance indicators
Missing values
Estimation theory
Linear interpolation
Interpolation
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/6612
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spelling my.unimap-66122009-07-29T08:19:10Z Estimation of missing values in air pollution data using single imputation techniques Norazian, Mohamed Noor Shukri, Yahaya Ahmad Azam, Ramli Nor Mohd. Mustafa Al Bakri, Abdullah Air pollution Imputation Performance indicators Missing values Estimation theory Linear interpolation Interpolation Link to publisher's homepage at http://www.scienceasia.org Air pollution data obtained using automated machines often contain missing values which can cause bias due to systematic differences between observed and unobserved data. We used interpolation and mean imputation techniques to replace simulated missing values from annual hourly monitoring data for PM10. The most effective method for generating the missing data points was to replace each missing value with the mean of the two data points before and after the missing value. This approach was referred to as the mean-before-after method. 2009-07-29T08:18:19Z 2009-07-29T08:18:19Z 2008 Article ScienceAsia, vol. 34 (2), 2008 pages 341-345. 1513-1874 10.2306/scienceasia1513-1874.2008.34.341 http://www.scienceasia.org/content/content.php?v=34&i=3&m=9&y=2008 http://hdl.handle.net/123456789/6612 en Science Society of Thailand
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Air pollution
Imputation
Performance indicators
Missing values
Estimation theory
Linear interpolation
Interpolation
spellingShingle Air pollution
Imputation
Performance indicators
Missing values
Estimation theory
Linear interpolation
Interpolation
Norazian, Mohamed Noor
Shukri, Yahaya Ahmad
Azam, Ramli Nor
Mohd. Mustafa Al Bakri, Abdullah
Estimation of missing values in air pollution data using single imputation techniques
description Link to publisher's homepage at http://www.scienceasia.org
format Article
author Norazian, Mohamed Noor
Shukri, Yahaya Ahmad
Azam, Ramli Nor
Mohd. Mustafa Al Bakri, Abdullah
author_facet Norazian, Mohamed Noor
Shukri, Yahaya Ahmad
Azam, Ramli Nor
Mohd. Mustafa Al Bakri, Abdullah
author_sort Norazian, Mohamed Noor
title Estimation of missing values in air pollution data using single imputation techniques
title_short Estimation of missing values in air pollution data using single imputation techniques
title_full Estimation of missing values in air pollution data using single imputation techniques
title_fullStr Estimation of missing values in air pollution data using single imputation techniques
title_full_unstemmed Estimation of missing values in air pollution data using single imputation techniques
title_sort estimation of missing values in air pollution data using single imputation techniques
publisher Science Society of Thailand
publishDate 2009
url http://dspace.unimap.edu.my/xmlui/handle/123456789/6612
_version_ 1643788591903539200
score 13.222552

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