Ivy I-Ming Liu is a Taiwanese and New Zealander statistician specializing in categorical and

ordinal data Ordinal data is a categorical, statistical data type where the variables have natural, ordered categories and the distances between the categories are not known. These data exist on an ordinal scale, one of four Level of measurement, levels of m ...

. She works as an associate professor and as head of the School of Mathematics and Statistics at

Victoria University of Wellington Victoria University of Wellington (), also known by its shorter names "VUW" or "Vic", is a public university, public research university in Wellington, New Zealand. It was established in 1897 by Act of New Zealand Parliament, Parliament, and w ...

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

Biography

Liu is originally from Taiwan and has a master's degree from

Iowa State University Iowa State University of Science and Technology (Iowa State University, Iowa State, or ISU) is a Public university, public land-grant university, land-grant research university in Ames, Iowa, United States. Founded in 1858 as the Iowa Agricult ...

. She completed her Ph.D. in 1995 at the

University of Florida The University of Florida (Florida or UF) is a public university, public land-grant university, land-grant research university in Gainesville, Florida, United States. It is a senior member of the State University System of Florida and a preem ...

under the supervision of Alan Agresti. After returning to Taiwan to work at

National Chung Hsing University National Chung Hsing University (NCHU; ; lit. National Resurgence University) is a comprehensive research university in South District, Taichung, Taiwan. Currently, NCHU is among the four universities of the Taiwan Comprehensive University Sys ...

, she came to the

University of Waikato The University of Waikato (), established in 1964, is a Public university, public research university located in Hamilton, New Zealand, Hamilton, New Zealand. An additional campus is located in Tauranga. The university performs research in nume ...

in February 1999 for a one-year visiting lectureship, before moving to Victoria University. She initially chose to work in

categorical data In statistics, a categorical variable (also called qualitative variable) is a variable (research), variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual or other unit of observation to a ...

with the hope that she could collaborate with her husband, then studying

sociology Sociology is the scientific study of human society that focuses on society, human social behavior, patterns of Interpersonal ties, social relationships, social interaction, and aspects of culture associated with everyday life. The term sociol ...

. However, he moved to different work before that hope could pan out. More specifically, her research has concerned

differential item functioning Differential item functioning (DIF) is a statistical property of a test item that indicates how likely it is for individuals from distinct groups, possessing similar abilities, to respond differently to the item. It manifests when individuals from d ...

dimension reduction Dimensionality reduction, or dimension reduction, is the transformation of data from a high-dimensional space into a low-dimensional space so that the low-dimensional representation retains some meaningful properties of the original data, ideally ...

for data whose components have mixed types, and multiple response data (survey data in which respondents can provide multiple answers to a question).

References

External links

Home page
* {{DEFAULTSORT:Liu, Ivy Year of birth missing (living people) Living people New Zealand statisticians Taiwanese statisticians Women statisticians Iowa State University alumni University of Florida alumni Academic staff of the University of Waikato Academic staff of Victoria University of Wellington