Matches in SemOpenAlex for { <https://semopenalex.org/work/W4287549498> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W4287549498 abstract "Compositional data and multivariate count data with known totals are challenging to analyse due to the non-negativity and sum-to-one constraints on the sample space. It is often the case that many of the compositional components are highly right-skewed, with large numbers of zeros. A major limitation of currently available estimators for compositional models is that they either cannot handle many zeros in the data or are not computationally feasible in moderate to high dimensions. We derive a new set of novel score matching estimators applicable to distributions on a Riemannian manifold with boundary, of which the standard simplex is a special case. The score matching method is applied to estimate the parameters in a new flexible truncation model for compositional data and we show that the estimators are scalable and available in closed form. Through extensive simulation studies, the scoring methodology is demonstrated to work well for estimating the parameters in the new truncation model and also for the Dirichlet distribution. We apply the new model and estimators to real microbiome compositional data and show that the model provides a good fit to the data." @default.
- W4287549498 created "2022-07-25" @default.
- W4287549498 creator A5019248593 @default.
- W4287549498 creator A5038938718 @default.
- W4287549498 date "2020-12-22" @default.
- W4287549498 modified "2023-09-27" @default.
- W4287549498 title "Score matching for compositional distributions" @default.
- W4287549498 doi "https://doi.org/10.48550/arxiv.2012.12461" @default.
- W4287549498 hasPublicationYear "2020" @default.
- W4287549498 type Work @default.
- W4287549498 citedByCount "0" @default.
- W4287549498 crossrefType "posted-content" @default.
- W4287549498 hasAuthorship W4287549498A5019248593 @default.
- W4287549498 hasAuthorship W4287549498A5038938718 @default.
- W4287549498 hasBestOaLocation W42875494981 @default.
- W4287549498 hasConcept C105795698 @default.
- W4287549498 hasConcept C106195933 @default.
- W4287549498 hasConcept C11413529 @default.
- W4287549498 hasConcept C134306372 @default.
- W4287549498 hasConcept C161584116 @default.
- W4287549498 hasConcept C165064840 @default.
- W4287549498 hasConcept C169214877 @default.
- W4287549498 hasConcept C177264268 @default.
- W4287549498 hasConcept C182310444 @default.
- W4287549498 hasConcept C185429906 @default.
- W4287549498 hasConcept C199360897 @default.
- W4287549498 hasConcept C2524010 @default.
- W4287549498 hasConcept C2781147490 @default.
- W4287549498 hasConcept C28826006 @default.
- W4287549498 hasConcept C33923547 @default.
- W4287549498 hasConcept C41008148 @default.
- W4287549498 hasConcept C58489278 @default.
- W4287549498 hasConcept C62438384 @default.
- W4287549498 hasConceptScore W4287549498C105795698 @default.
- W4287549498 hasConceptScore W4287549498C106195933 @default.
- W4287549498 hasConceptScore W4287549498C11413529 @default.
- W4287549498 hasConceptScore W4287549498C134306372 @default.
- W4287549498 hasConceptScore W4287549498C161584116 @default.
- W4287549498 hasConceptScore W4287549498C165064840 @default.
- W4287549498 hasConceptScore W4287549498C169214877 @default.
- W4287549498 hasConceptScore W4287549498C177264268 @default.
- W4287549498 hasConceptScore W4287549498C182310444 @default.
- W4287549498 hasConceptScore W4287549498C185429906 @default.
- W4287549498 hasConceptScore W4287549498C199360897 @default.
- W4287549498 hasConceptScore W4287549498C2524010 @default.
- W4287549498 hasConceptScore W4287549498C2781147490 @default.
- W4287549498 hasConceptScore W4287549498C28826006 @default.
- W4287549498 hasConceptScore W4287549498C33923547 @default.
- W4287549498 hasConceptScore W4287549498C41008148 @default.
- W4287549498 hasConceptScore W4287549498C58489278 @default.
- W4287549498 hasConceptScore W4287549498C62438384 @default.
- W4287549498 hasLocation W42875494981 @default.
- W4287549498 hasOpenAccess W4287549498 @default.
- W4287549498 hasPrimaryLocation W42875494981 @default.
- W4287549498 hasRelatedWork W1980905932 @default.
- W4287549498 hasRelatedWork W1999189895 @default.
- W4287549498 hasRelatedWork W2014892214 @default.
- W4287549498 hasRelatedWork W2033632298 @default.
- W4287549498 hasRelatedWork W2040248213 @default.
- W4287549498 hasRelatedWork W2042341437 @default.
- W4287549498 hasRelatedWork W2078585418 @default.
- W4287549498 hasRelatedWork W2085818158 @default.
- W4287549498 hasRelatedWork W2152704622 @default.
- W4287549498 hasRelatedWork W2117701737 @default.
- W4287549498 isParatext "false" @default.
- W4287549498 isRetracted "false" @default.
- W4287549498 workType "article" @default.