A Fractal Dimension for Measures via Persistent Homology
A Fractal Dimension for Measures via Persistent Homology
复制标题
通过持久同调测量的分形维数
DOI:
10.1007/978-3-030-43408-3_1
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Shonkwiler, C.
中科院分区:
文献类型:
--
作者:
Adams, H.;Aminian, M;Farnel, E.;Kirby, M.;Mirth, J.;Neville, R.;Peterson, C.;Shonkwiler, C.
We use persistent homology in order to define a family of fractal dimensions, denotedfor each homological dimensioni≥ 0, assigned to a probability measureμon a metric space. The case of zero-dimensional homology (i= 0) relates to work by Steele (Ann Probab 16(4): 1767–1787, 1988) studying the total length of a minimal spanning tree on a random sampling of points. Indeed, ifμis supported on a compact subset of Euclidean spaceform≥ 2, then Steele’s work implies thatif the absolutely continuous part ofμhas positive mass, and otherwise. Experiments suggest that similar results may be true for higher-dimensional homology 0 <i<m, though this is an open question. Our fractal dimension is defined by considering a limit, as the number of pointsngoes to infinity, of the total sum of thei-dimensional persistent homology interval lengths fornrandom points selected fromμin an i.i.d. fashion. To some measuresμ, we are able to assign a finer invariant, a curve measuring the limiting distribution of persistent homology interval lengths as the number of points goes to infinity. We prove this limiting curve exists in the case of zero-dimensional homology whenμis the uniform distribution over the unit interval, and conjecture that it exists whenμis the rescaled probability measure for a compact set in Euclidean space with positive Lebesgue measure.
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DOI:
--
发表时间:
2015-07
期刊:
J. Mach. Learn. Res.
影响因子:
--
作者:
Henry Adams;T. Emerson;M. Kirby;R. Neville;C. Peterson;Patrick D. Shipman;Sofya Chepushtanova;Eric M. Hanson;Francis C. Motta;Lori Ziegelmeier
通讯作者:
Henry Adams;T. Emerson;M. Kirby;R. Neville;C. Peterson;Patrick D. Shipman;Sofya Chepushtanova;Eric M. Hanson;Francis C. Motta;Lori Ziegelmeier
DOI:
10.1515/zna-1982-1117
发表时间:
1982
期刊:
Zeitschrift für Naturforschung A
影响因子:
--
作者:
J. Farmer
通讯作者:
J. Farmer
影响因子:
1.8
作者:
K. S. Alexander
通讯作者:
K. S. Alexander
DOI:
10.1002/9781118548745
发表时间:
2013
期刊:
--
影响因子:
--
作者:
R. Vallin
通讯作者:
R. Vallin
影响因子:
1.5
作者:
Owada, Takashi;Bobrowski, Omer
通讯作者:
Bobrowski, Omer