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Journal Articles Algorithmica Year : 2012

Succinct Representation of Labeled Graphs

Abstract

In many applications, the properties of an object being modeled are stored as labels on vertices or edges of a graph. In this paper, we consider succinct representation of labeled graphs. Our main results are the succinct representations of labeled and multi-labeled graphs (we consider planar triangulations, planar graphs and $k$-page graphs) to support various label queries efficiently. The additional space cost to store the labels is essentially the information-theoretic minimum. As far as we know, our representations are the first succinct representations of labeled graphs. We also have two preliminary results to achieve the main contribution. First, we design a succinct representation of unlabeled planar triangulations to support the rank/select of edges in ccw (counterclockwise) order in addition to the other operations supported in previous work. Second, we design a succinct representation for a $k$-page graph when $k$ is large to support various navigational operations more efficiently. In particular, we can test the adjacency of two vertices in $O(\lg k)$ time\footnote{We use $\log_2 x$ to denote the logarithmic base $2$ and $\lg x$ to denote $\lceil\log_2 x\rceil$. Occasionally this matters.}, while previous work uses $O(k)$ time.
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Dates and versions

hal-00712915 , version 1 (28-06-2012)

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Jérémy Barbay, Luca Castelli Aleardi, Meng He, Ian J. Munro. Succinct Representation of Labeled Graphs. Algorithmica, 2012, 62 (1-2), pp.224-257. ⟨10.1007/s00453-010-9452-7⟩. ⟨hal-00712915⟩
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