Graph-based keyword spotting in historical manuscripts using Hausdorff edit distance
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2019
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01A - Journal article
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Pattern Recognition Letters
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Volume
121
Issue / Number
Pages / Duration
61-67
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Elsevier
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Abstract
Keyword spotting enables content-based retrieval of scanned historical manuscripts using search terms, which, in turn, facilitates the indexation in digital libraries. Recent approaches include graph-based representations that capture the complex structure of handwriting. However, the high representational power of graphs comes at the cost of high computational complexity for graph matching. In this article, we investigate the potential of Hausdorff edit distance (HED) for keyword spotting. It is an efficient quadratic-time approximation of the graph edit distance. In a comprehensive experimental evaluation with four types of handwriting graphs and four benchmark datasets (George Washington, Parzival, Botany, and Alvermann Konzilsprotokolle), we demonstrate a strong performance of the proposed HED-based method when compared with the state of the art, both, in terms of precision and speed.
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0167-8655
Language
English
Created during FHNW affiliation
Yes
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Publication status
Published
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Closed
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Citation
Ameri, M. R., Stauffer, M., Riesen, K., Bui, T. D., Fischer, A., & Fischer, A. (2019). Graph-based keyword spotting in historical manuscripts using Hausdorff edit distance. Pattern Recognition Letters, 121, 61–67. https://doi.org/10.1016/j.patrec.2018.05.003