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Critical Rows of Almost-Factorable Matrices

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Combinatorial Optimization and Applications (COCOA 2019)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 11949))

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Abstract

An almost-factorable matrix is a matrix that has a k-rank nonnegative factorization after deleting a single row. We call such a row a critical row. In graph optimization, a critical edge is an edge which can be deleted to reduce a graph measure, such as the size of the minimum vertex cover. We prove a reduction between critical rows in matrices and critical edges in graphs. Additionally, we describe and experimentally test an algorithm to identify the critical row of a matrix.

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Correspondence to Peter Ballen .

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Ballen, P. (2019). Critical Rows of Almost-Factorable Matrices. In: Li, Y., Cardei, M., Huang, Y. (eds) Combinatorial Optimization and Applications. COCOA 2019. Lecture Notes in Computer Science(), vol 11949. Springer, Cham. https://doi.org/10.1007/978-3-030-36412-0_3

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  • DOI: https://doi.org/10.1007/978-3-030-36412-0_3

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-36411-3

  • Online ISBN: 978-3-030-36412-0

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