نتایج جستجو برای: gini index
تعداد نتایج: 397450 فیلتر نتایج به سال:
When incomes are ranked in descending order the social-evaluation function corresponding to the Gini relative inequality index can be written as a linear function with the weights being the odd numbers in increasing order. We generalize this function by allowing the weights to be an arbitrary non-decreasing sequence of numbers. This results in a class of generalized Gini relative inequality ind...
Abstract In this paper, we introduce a map $$\varPhi $$ Φ , which call zonoid from the space of all non-negative, finite Borel measures on $${\mathbb {R}}^n$$ R n with first moment to zonoids . This map, connecting measure theory ...
The paper discusses the properties of an attribute selection criterion for building rough set reducts based on discernibility matrix and compares it with Entropy and Gini index used for building decision trees. It has been shown theoretically and experimentally that Entropy and Gini index work better if the reduct is later used for prediction of previously unseen cases, and the criterion based ...
Although attention has been given to obtaining reliable standard errors for the plugin estimator of the Gini index, all standard errors suggested until now are either complicated or quite unreliable. An approximation is derived for the estimator by which it is expressed as a sum of IID random variables. This approximation allows us to develop a reliable standard error that is simple to compute....
Measuring changes of the T cell receptor (TCR) repertoire is important to many fields of medicine. Flow cytometry is a popular technique to study the TCR repertoire, as it quickly provides insight into the TCR-Vβ usage among well-defined populations of T cells. However, the interpretation of the flow cytometric data remains difficult, and subtle TCR repertoire changes may go undetected. Here, w...
Most inequality research on the relationship between inequality and mental health has focused on cross-country variation. Findings from within-country data are mixed. We examined whether changes in municipal Gini index or in the share of people living in relative poverty were linked to changes in the use of antidepressants in several Finnish municipalities between 1995 and 2010. We found that m...
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