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2003
Springer

Sweepline the Music!

10 years 9 months ago
Sweepline the Music!
Abstract. The problem of matching sets of points or sets of horizontal line segments in plane under translations is considered. For finding the exact occurrences of a point set of size m within another point set of size n we give an algorithm with running time O(mn), and for finding partial occurrences an algorithm with running time O(mnlogm). To find the largest overlap between two line segment patterns we develop an algorithm with running time O(mnlog(mn)). All algorithms are based on a simple sweepline traversal of one of the patterns in the lexicographic order. The motivation for the problems studied comes from music retrieval and analysis.
Esko Ukkonen, Kjell Lemström, Veli Mäkin
Added 06 Jul 2010
Updated 06 Jul 2010
Type Conference
Year 2003
Where BIRTHDAY
Authors Esko Ukkonen, Kjell Lemström, Veli Mäkinen
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