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Identifying skylines in dynamic incomplete database


Babanejaddehaki, Ghazaleh and Ibrahim, Hamidah and Udzir, Nur Izura and Sidi, Fatimah and Dehaki, Ghoncheh Babanejad and Aljuboori, Ali Amer Alwan (2015) Identifying skylines in dynamic incomplete database. In: 9th International Conference on Computer Engineering and Applications (CEA '15), 22-24 Feb. 2015, Dubai, United Arab Emirates. (pp. 231-236).


Nowadays in database systems finding the best results that meet the preferences of users is the most important issue. Skyline queries will present the data items that are not being dominated by the other items in a database. Most of the operations assume the database is complete which means there are no missing values in the database dimensions. In reality, databases are not complete especially for multidimensional database. Missing values have a negative effect on finding skyline points. It changes the native of dominance relation, leads to cyclic dominance and unsatisfying the transitivity property of skylines. This problem becomes more severe in dynamic database in which new items are inserted or items are deleted or updated from the database. Besides, most of the works that handled the incomplete issue assumed that items are static. In this paper we propose the new approach which finds the most relevant data items that meet user’s preferences for dynamic incomplete databases.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Computer Science and Information Technology
Publisher: WSEAS Press
Keywords: Skyline queries; Preference queries; Incomplete database; Dynamic database
Depositing User: Nabilah Mustapa
Date Deposited: 05 Jul 2018 09:35
Last Modified: 05 Jul 2018 09:35
URI: http://psasir.upm.edu.my/id/eprint/64460
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