Lianne Ippel

foto Lianne IppelMethodology and Statistics
Social and Behavioral Science
Tilburg University

Supervisors
Prof. J.K. Vermunt & Dr M.C. Kaptein

On October 13th 2017, Lianne Ippel will defend her thesis entitled

cover-thesis-ippelMultilevel Modeling for Data Streams with Dependent Observations

(Thesis and summary not available yet)

Project

Streaming Estimation of Response Heterogeneity
In social science, we often encounter hierarchical or grouped data (e.g. observations within individuals). Taking this grouped structure into account enables the estimation of an effect per unit (e.g. per person). During this project we will study the estimation of these individual level effects, while the data enter. This is especially advantageous in interactive web applications. These applications often gather extremely large datasets and require a short computation time. The existing methods to estimate individual level effects are insufficient, because the estimation procedure is lengthy and/or they require all data in computer memory which can become problematic due to memory limitations. We will use methods that do not require all data in memory, because they use summations such as an average which can be updated a point at a time.

 

Financed by
Tilburg University

Period
1 October 2013- 31 August 2017