Gaussian Process Ranking of Multiple Time Series

Implements a Gaussian process (GP)-based ranking method which can be used to rank multiple time series according to their temporal activity levels. An example is the case when expression levels of all genes are measured over a time course and the main concern is to identify the most active genes, i.e. genes which show significant non-random variation in their expression levels. This is achieved by computing Bayes factors for each time series by comparing the marginal likelihoods under time-dependent and time-independent GP models. Additional variance information from pre-processing of the observations is incorporated into the GP models, which makes the ranking more robust against model overfitting. The package supports exporting the results to 'tigreBrowser' for visualisation, filtering or ranking.

GPrank - R package


Reference manual

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0.1.4 by Hande Topa, 3 years ago

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Authors: Hande Topa [aut, cre] , Antti Honkela [aut]

Documentation:   PDF Manual  

MIT + file LICENSE license

Imports gptk, matrixStats, tigreBrowserWriter, RColorBrewer

Suggests knitr, rmarkdown

See at CRAN