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Fitting a manifold of large reach to noisy data

Authors: Charles Fefferman; Sergei Ivanov; Matti Lassas; Hariharan Narayanan;

Fitting a manifold of large reach to noisy data

Abstract

Let [Formula: see text] be a [Formula: see text]-smooth compact submanifold of dimension [Formula: see text]. Assume that the volume of [Formula: see text] is at most [Formula: see text] and the reach (i.e. the normal injectivity radius) of [Formula: see text] is greater than [Formula: see text]. Moreover, let [Formula: see text] be a probability measure on [Formula: see text] whose density on [Formula: see text] is a strictly positive Lipschitz-smooth function. Let [Formula: see text], [Formula: see text] be [Formula: see text] independent random samples from distribution [Formula: see text]. Also, let [Formula: see text], [Formula: see text] be independent random samples from a Gaussian random variable in [Formula: see text] having covariance [Formula: see text], where [Formula: see text] is less than a certain specified function of [Formula: see text] and [Formula: see text]. We assume that we are given the data points [Formula: see text] [Formula: see text], modeling random points of [Formula: see text] with measurement noise. We develop an algorithm which produces from these data, with high probability, a [Formula: see text] dimensional submanifold [Formula: see text] whose Hausdorff distance to [Formula: see text] is less than [Formula: see text] for [Formula: see text] and whose reach is greater than [Formula: see text] with universal constants [Formula: see text]. The number [Formula: see text] of random samples required depends almost linearly on [Formula: see text], polynomially on [Formula: see text] and exponentially on [Formula: see text].

Keywords

Applications of global analysis to the sciences, Analysis of algorithms and problem complexity, Learning and adaptive systems in artificial intelligence, Mathematics - Statistics Theory, Statistics Theory (math.ST), reach, data, manifold learning, 65C60, FOS: Mathematics, Global differential geometry, manifold hypothesis

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green