6533b826fe1ef96bd1284e92
RESEARCH PRODUCT
COVARIANCE AND CORRELATION ESTIMATORS IN BIPARTITE SYSTEMS
E. Pucciosubject
Bipartite systemsBiological systemsWallenius non-central Hypergeometric DistributionCorrelation AnalysisComplex SystemsSocial systemsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)description
We present a weighted estimator of the covariance and correlation in bipartite complex systems with a double layer of heterogeneity. The advantage provided by the weighted estimators lies in the fact that the unweighted sample covariance and correlation can be shown to possess a bias. Indeed, such a bias affects real bipartite systems, and, for example, we report its effects on two empirical systems, one social and the other biological. On the contrary, our newly proposed weighted estimators remove the bias and are better suited to describe such systems.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-02-27 |