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Efficient labeling of collinear sites

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dc.contributor.author Bekos, MA en
dc.contributor.author Kaufmann, M en
dc.contributor.author Symvonis, A en
dc.date.accessioned 2014-03-01T01:28:14Z
dc.date.available 2014-03-01T01:28:14Z
dc.date.issued 2008 en
dc.identifier.issn 15261719 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/18772
dc.subject Label Placement en
dc.subject Map Labeling en
dc.subject Polynomial Time Algorithm en
dc.title Efficient labeling of collinear sites en
heal.type journalArticle en
heal.identifier.primary 10.7155/jgaa.00170 en
heal.identifier.secondary http://dx.doi.org/10.7155/jgaa.00170 en
heal.publicationDate 2008 en
heal.abstract In this paper we study the map labeling problem where the sites to be labeled are restricted to a line L. Previous models studied in the map labeling literature fail to produce label placements (i.e. place each label next to the site it describes) without label overlaps for certain instances of the problem with dense point sets. To address this problem, we propose a new approach according to which, given n sites each associated with an axis-parallel rectangular label, we aim to place the labels in distinct positions on the 'boundary' of L so that they do not overlap and do not obscure the site set, and to connect each label with its associated site through a leader such that no two leaders intersect. We evaluate our labeling model under two minimization criteria: (i) to- tal leader length and (ii) total number of leader bends. We show that both problems are NP-complete if the labels can be placed on both sides of L, while we present polynomial time algorithms for the case where the labels can be placed on only one side of L. en
heal.journalName Journal of Graph Algorithms and Applications en
dc.identifier.doi 10.7155/jgaa.00170 en
dc.identifier.volume 12 en
dc.identifier.issue 3 en
dc.identifier.spage 357 en
dc.identifier.epage 380 en


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