Robust and Scalable Learning of Complex Intrinsic Dataset Geometry via ElPiGraph.
Robust and Scalable Learning of Complex Intrinsic Dataset Geometry via ElPiGraph.
复制标题
DOI:
10.3390/e22030296
复制
发表时间:
2020-03-04
期刊:
影响因子:
--
通讯作者:
Zinovyev A
中科院分区:
文献类型:
--
作者:
Albergante L;Mirkes E;Bac J;Chen H;Martin A;Faure L;Barillot E;Pinello L;Gorban A;Zinovyev A
Multidimensional datapoint clouds representing large datasets are frequently characterized by non-trivial low-dimensional geometry and topology which can be recovered by unsupervised machine learning approaches, in particular, by principal graphs. Principal graphs approximate the multivariate data by a graph injected into the data space with some constraints imposed on the node mapping. Here we present ElPiGraph, a scalable and robust method for constructing principal graphs. ElPiGraph exploits and further develops the concept of elastic energy, the topological graph grammar approach, and a gradient descent-like optimization of the graph topology. The method is able to withstand high levels of noise and is capable of approximating data point clouds via principal graph ensembles. This strategy can be used to estimate the statistical significance of complex data features and to summarize them into a single consensus principal graph. ElPiGraph deals efficiently with large datasets in various fields such as biology, where it can be used for example with single-cell transcriptomic or epigenomic datasets to infer gene expression dynamics and recover differentiation landscapes.
登录
查看更多内容
影响因子:
1.6
作者:
Delicado, P
通讯作者:
Delicado, P
影响因子:
3.7
作者:
Gorban, A. N.;Sumner, N. R.;Zinovyev, A. Y.
通讯作者:
Zinovyev, A. Y.
DOI:
10.1126/science.aar5780
发表时间:
2018-06-01
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Briggs JA;Weinreb C;Wagner DE;Megason S;Peshkin L;Kirschner MW;Klein AM
通讯作者:
Klein AM
影响因子:
4.3
作者:
Failmezger H;Jaegle B;Schrader A;Hülskamp M;Tresch A
通讯作者:
Tresch A
影响因子:
16.6
作者:
Chen, Huidong;Albergante, Luca;Pinello, Luca
通讯作者:
Pinello, Luca