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Computing Interleaving and Bottleneck Distance for 2-D Interval Decomposable Modules Dey, Tamal
Description
Computation of the interleaving distance between persistence modules is a central task in topological data analysis. For $1$-D persistence modules, thanks to the isometry theorem, this can be done by computing the bottleneck distance with known efficient algorithms. The question is open for most $n$-D persistence modules, $n>1$, because of the well recognized complications of the indecomposables. Here, we consider a reasonably complicated class called {\em $2$-D interval decomposable} modules whose indecomposables may have a description of non-constant complexity. We present a polynomial time algorithm to compute the interleaving distance between two such indecomposables. This leads to a polynomial time algorithm for computing the bottleneck distance between two $2$-D interval decomposable modules, which bounds their interleaving distance from above. We give another algorithm to compute a new distance called {\em dimension distance} that bounds it from below.
Item Metadata
Title |
Computing Interleaving and Bottleneck Distance for 2-D Interval Decomposable Modules
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2018-08-07T11:32
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Description |
Computation of the interleaving distance between persistence modules is
a central task in topological data analysis. For $1$-D persistence
modules, thanks to the isometry theorem, this can be done by computing
the bottleneck distance with known efficient algorithms. The question is
open for most $n$-D persistence modules, $n>1$, because of the well
recognized complications of the indecomposables. Here, we consider a
reasonably complicated class called {\em $2$-D interval decomposable}
modules whose indecomposables may have a description of non-constant
complexity. We present a polynomial time algorithm to compute the
interleaving distance between two such indecomposables. This leads to a
polynomial time algorithm for computing the bottleneck distance between
two $2$-D interval decomposable modules, which bounds their interleaving
distance from above. We give another algorithm to compute a new
distance called {\em dimension distance} that bounds it from below.
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Extent |
28.0
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Ohio State University
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Series | |
Date Available |
2019-03-24
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0377386
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Faculty
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International