In this paper we design a distance labeling scheme with O(log n) bit labels for interval graphs and circular-arc graphs with n vertices. The set of all the labels is constructible in O(n) time if the interval representation of the graph is given and sorted. As a byproduct we give a new and simpler O(n) space data-structure computable after O(n) preprocessing time, and supporting constant worst-case time distance queries for interval and circular-arc graphs. These optimal bounds improve the previous scheme of Katz, Katz, and Peleg (STACS '00) by a log n factor. To the best of our knowledge, the interval graph family is the first hereditary family having 2Ω(n log n) unlabeled n-vertex graphs and supporting a o(log2 n) bit distance labeling scheme. © Springer-Verlag 2003.
CITATION STYLE
Gavoille, C., & Paul, C. (2003). Optimal distance labeling for interval and circular-arc graphs. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2832, 254–265. https://doi.org/10.1007/978-3-540-39658-1_25
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