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Erschienen in: Neural Processing Letters 2/2018

09.11.2017

On the Impact of Using Utilities Rather than Costs for Graph Matching

verfasst von: Kaspar Riesen, Andreas Fischer, Horst Bunke

Erschienen in: Neural Processing Letters | Ausgabe 2/2018

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Abstract

The concept of graph edit distance constitutes one of the most flexible graph matching paradigms available. The major drawback of graph edit distance, viz. the exponential time complexity, has been recently overcome by means of a reformulation of the edit distance problem to a linear sum assignment problem. However, the substantial speed up of the matching is also accompanied by an approximation error on the distances. Major contribution of this paper is the introduction of a transformation process in order to convert the underlying cost model into a utility model. The benefit of this transformation is that it enables the integration of additional information in the assignment process. We empirically confirm the positive effects of this transformation on five benchmark graph sets with respect to the accuracy and run time of a distance based classifier.

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Fußnoten
2
The assignment problem can also be formulated as finding a matching in a complete bipartite graph and is therefore also referred to as bipartite graph matching problem.
 
3
Applying the greedy assignment on utilities rather than costs means that we replace \(\underset{\forall j }{\arg \min }\) by \(\underset{\forall j }{\arg \max }\), of course.
 
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Metadaten
Titel
On the Impact of Using Utilities Rather than Costs for Graph Matching
verfasst von
Kaspar Riesen
Andreas Fischer
Horst Bunke
Publikationsdatum
09.11.2017
Verlag
Springer US
Erschienen in
Neural Processing Letters / Ausgabe 2/2018
Print ISSN: 1370-4621
Elektronische ISSN: 1573-773X
DOI
https://doi.org/10.1007/s11063-017-9739-7

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