Processing skyline queries in incomplete database: issues, challenges and future trends
In many contemporary database applications such as multi-criteria decision-making and real-time decision-support applications, data mining, ecommerce and recommendation systems, users need query operators to process the data aiming at finding the results that best fit with their preferences. Sky...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Science Publication
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/59700/ http://irep.iium.edu.my/59700/ http://irep.iium.edu.my/59700/ http://irep.iium.edu.my/59700/1/59700_Processing%20Skyline%20Queries%20in%20Incomplete.pdf http://irep.iium.edu.my/59700/7/59700_Processing%20skyline%20queries%20in%20incomplete%20database_SCOPUS.pdf |
| Summary: | In many contemporary database applications such as multi-criteria
decision-making and real-time decision-support applications, data mining, ecommerce
and recommendation systems, users need query operators to
process the data aiming at finding the results that best fit with their
preferences. Skyline queries are one of the most predominant query operators
that privileges to find the query results that return only those data items
whose dimension vector is not dominated by any other data item in the
database. Because of their usefulness and ubiquity, skyline queries have been
incorporated into different types of databases such as complete, incomplete
and uncertain. This paper attempts to survey and analyze the previous works
proposed to process skyline queries in the incomplete database. The
discussion focuses on examining these approaches highlighting the strengths
and the weaknesses of each work. Besides, we also discuss in detail the
current challenges in processing skyline queries in the incomplete database
and investigate the impact of incomplete data on skyline operation. A
summary of the most well-known works has been reported to identify the
limitations of these works. Some recommendations and future work
directions have been drawn to help researchers investigate the unsolved
problems related to skyline queries in a database system. |
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