نتایج جستجو برای: compositional data
تعداد نتایج: 2424312 فیلتر نتایج به سال:
Social network items have been included in several cross-national surveys (e.g., Generations and Gender Programme, European Quality of Life Survey, International Social Survey Programme). In these surveys, several different methods and questionnaire items are applied to measure similar or identical constructs. These methods are the name generator method and the simplified role relation method. ...
Functional data analysis (FDA) deals with samples where a whole function is observed for each individual. A particular case is when the observed functions are densities, that is also an example of infinite dimensional compositional data. We focus on the dimensionality reduction problem for this particular type of data. Several methods are considered here: functional principal components analysi...
Summary Differential abundance tests for compositional data are essential and fundamental in various biomedical applications, such as single-cell, bulk RNA-seq microbiome analysis. However, because of the constraint prevalence zero counts data, differential analysis on remains a complicated unsolved statistical problem. This article proposes new test, robust to address these challenges. Compare...
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