Dorota Maria Dabrowska is a

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Polish people, people from Poland or of Polish descent * Polish chicken * Polish brothers (Mark Polish and Michael Polish, born 1970), American twin ...

statistician known for applying

nonparametric statistics Nonparametric statistics is a type of statistical analysis that makes minimal assumptions about the underlying distribution of the data being studied. Often these models are infinite-dimensional, rather than finite dimensional, as in parametric s ...

and

semiparametric model In statistics, a semiparametric model is a statistical model that has parametric and nonparametric components. A statistical model is a parameterized family of distributions: \ indexed by a parameter \theta. * A parametric model is a model i ...

s to

counting process A counting process is a stochastic process In probability theory and related fields, a stochastic () or random process is a mathematical object usually defined as a family of random variables in a probability space, where the index of the famil ...

es and

survival analysis Survival analysis is a branch of statistics for analyzing the expected duration of time until one event occurs, such as death in biological organisms and failure in mechanical systems. This topic is called reliability theory, reliability analysis ...

. Dabrowska's estimator, from her paper "Kaplan–Meier estimate on the plane" (''

Annals of Statistics The ''Annals of Statistics'' is a peer-reviewed statistics journal published by the Institute of Mathematical Statistics. It was started in 1973 as a continuation in part of the '' Annals of Mathematical Statistics (1930)'', which was split into ...

'', 1988) is a widely used tool for bivariate survival under random censoring.

Early life

Dąbrowska earned a master's degree in mathematics from the

University of Warsaw The University of Warsaw (, ) is a public university, public research university in Warsaw, Poland. Established on November 19, 1816, it is the largest institution of higher learning in the country, offering 37 different fields of study as well ...

. She completed her Ph.D. in statistics in 1984 at the

University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California), is a Public university, public Land-grant university, land-grant research university in Berkeley, California, United States. Founded in 1868 and named after t ...

. Her dissertation, supervised by Kjell Doksum, was ''Rank Tests for Independence for Bivariate Censored Data''.

Career

After completing her doctorate, she joined the faculty at the

University of California, Los Angeles The University of California, Los Angeles (UCLA) is a public university, public Land-grant university, land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school the ...

, where she is a professor of

biostatistics Biostatistics (also known as biometry) is a branch of statistics that applies statistical methods to a wide range of topics in biology. It encompasses the design of biological experiments, the collection and analysis of data from those experimen ...

and statistics. At UCLA, she made fundamental contributions to the estimation and asymptotic theory in semi-Markov and Markov renewal models. As well as being a researcher in statistics, Dabrowska is also one of the translators of an influential 1923 paper on

randomized experiment In scientific method, science, randomized experiments are the experiments that allow the greatest reliability and validity of statistical estimates of treatment effects. Randomization-based inference is especially important in experimental design ...

s by

Jerzy Neyman Jerzy Spława-Neyman (April 16, 1894 – August 5, 1981; ) was a Polish mathematician and statistician who first introduced the modern concept of a confidence interval into statistical hypothesis testing and, with Egon Pearson, revised Ronald Fis ...

, originally written in

. Dabrowska is a Fellow of the

Institute of Mathematical Statistics The Institute of Mathematical Statistics is an international professional and scholarly society devoted to the development, dissemination, and application of statistics and probability. The Institute currently has about 4,000 members in all parts ...

References

{{DEFAULTSORT:Dabrowska, Dorota M. Year of birth missing (living people) Living people American women statisticians Polish statisticians University of Warsaw alumni UC Berkeley College of Letters and Science alumni UCLA School of Public Health faculty Fellows of the Institute of Mathematical Statistics 21st-century American women