2022
DOI: 10.1007/s00453-022-00994-0
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Light Spanners for High Dimensional Norms via Stochastic Decompositions

Abstract: Spanners for low dimensional spaces (e.g. Euclidean space of constant dimension, or doubling metrics) are well understood. This lies in contrast to the situation in high dimensional spaces, where except for the work of Har-Peled, Indyk and Sidiropoulos (SODA 2013), who showed that any n-point Euclidean metric has an O(t)-spanner with Õ(n 1+1/t 2 ) edges, little is known.In this paper we study several aspects of spanners in high dimensional normed spaces. First, we build spanners for finite subsets of p with 1 … Show more

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Cited by 5 publications
(2 citation statements)
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“…We note that the trees obtained here are in fact ultrametrics 1 . This result provides a special type of spanner with distortion O(α) and O(n • λ 1/α • log λ • log α) edges, which improves the recent spanner construction of [28], whose number of edges was larger by a factor of O(log λ n) (though their spanner has additionally bounded lightness). The lower bound mentioned above for doubling spaces implies that our tree cover bounds cannot be substantially improved.…”
Section: Our Resultsmentioning
confidence: 66%
“…We note that the trees obtained here are in fact ultrametrics 1 . This result provides a special type of spanner with distortion O(α) and O(n • λ 1/α • log λ • log α) edges, which improves the recent spanner construction of [28], whose number of edges was larger by a factor of O(log λ n) (though their spanner has additionally bounded lightness). The lower bound mentioned above for doubling spaces implies that our tree cover bounds cannot be substantially improved.…”
Section: Our Resultsmentioning
confidence: 66%
“…1 In this paper we require the partition property of SPCS for metric embeddings into ℓ∞, and for the oblivious buy-at-bulk. This property is also crucial in the construction of ultrametric covers [FL22a,Fil23,FGN23].…”
mentioning
confidence: 99%