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Article Details

Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

An Assessment of Open Data Sets Completeness

Author 1: Abdulrazzak Ali
Author 2: Nurul A. Emran
Author 3: Siti A. Asmai
Author 4: Amelia R. Ismail

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Digital Object Identifier (DOI) : 10.14569/IJACSA.2019.0100672

Article Published in International Journal of Advanced Computer Science and Applications(IJACSA), Volume 10 Issue 6, 2019.

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Abstract: The rapid growth of open data sources is driven by free-of-charge contents and ease of accessibility. While it is convenient for public data consumers to use data sets extracted from open data sources, the decision to use these data sets should be based on data sets’ quality. Several data quality dimensions such as completeness, accuracy, and timeliness are common requirements to make data fit for use. More importantly, in many cases, high-quality data sets are desirable in ensuring reliable outcomes of reports and analytics. Even though many open data sources provide data quality guidelines, the responsibility to ensure data of high quality requires commitment from data contributors. In this paper, an initial investigation on the quality of open data sets in terms of completeness dimension was con-ducted. In particular, the results of the missing values in 20 open data sets measurement were extracted from the open data sources. The analysis covered all the missing values representations which are not limited to nulls or blank spaces. The results exhibited a range of missing values ratios that indicated the level of the data sets completeness. The limited coverage of this analysis does not hinder understanding of the current level of data completeness of open data sets. The findings may motivate open data providers to design initiatives that will empower data quality policy and guidelines for data contributors. In addition, this analysis may assist public data users to decide on the acceptability of open data sets by applying the simple methods proposed in this paper or performing data cleaning actions to improve the completeness of the data sets concerned.

Keywords: Data completeness; missing values; open data; open data sources; data collection

Abdulrazzak Ali, Nurul A. Emran, Siti A. Asmai and Amelia R. Ismail, “An Assessment of Open Data Sets Completeness” International Journal of Advanced Computer Science and Applications(IJACSA), 10(6), 2019. http://dx.doi.org/10.14569/IJACSA.2019.0100672

@article{Ali2019,
title = {An Assessment of Open Data Sets Completeness},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2019.0100672},
url = {http://dx.doi.org/10.14569/IJACSA.2019.0100672},
year = {2019},
publisher = {The Science and Information Organization},
volume = {10},
number = {6},
author = {Abdulrazzak Ali and Nurul A. Emran and Siti A. Asmai and Amelia R. Ismail}
}


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