Efficient Skyline Querying with Variable User Preferences on Nominal Attributes

Details Efficient Skyline Querying with Variable User Preferences on Nominal Attributes Efficient Skyline Querying with Variable User Preferences on Nominal Attributes

2007-10-13

arxiv.org/abs/0710.2604v1

Computer Science

Databases

10 pages

Scientific paper

Current skyline evaluation techniques assume a fixed ordering on the attributes. However, dynamic preferences on nominal attributes are more realistic in known applications. In order to generate online response for any such preference issued by a user, we propose two methods of different characteristics. The first one is a semi-materialization method and the second is an adaptive SFS method. Finally, we conduct experiments to show the efficiency of our proposed algorithms.

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