The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
Oct. 31, 2014
Snu R&db Foundation, Seoul, KR;
Korea University of Technology and Education Industry-university Cooperation Foundation, Cheonan-si, KR;
SNU R&DB Foundation, Seoul, KR;
Korea University of Technology and Education Industry-University Cooperation Foundation, Cheonan-si, KR;
Abstract
A skyline query is a query on a set of tuples which are not dominated by other tuples. The skyline query system includes a sky quad tree generator that generates a quad tree from data, and marks a leaf node, which cannot include a local skyline, as being dominated; a local skyline calculator that computes a local skyline of each leaf node, which is not marked as being dominated, in the sky quad tree; and a global skyline calculator that computes a global skyline by using the local skyline. A quad tree is a tree where each internal node has exactly four children. The skyline query is a query for calculating a skyline, a dynamic skyline, or a reverse skyline from the data, where a dynamic skyline includes dynamic attributes and a reverse skyline identifies queries corresponding to certain skyline results.