Alumni Directory

Marie Vendettuoli
PhD, Summer 2013

Home Dept: Statistics

PhD Dissertation title: chromatoplotsGUI visualizing metabolomics analysis in R

PhD Advisor: Heike Hofmann and Dianne Cook

Area of PhD research: A non-trivial problem when analyzing gas-chromatography mass spectrometry (GC-MS) data in the field of metabolomics is identifying relevant peaks for an entire experiment. Grouping components across multiple spectra is complex due to the variations inherent in biological systems, bench sample preparation, and observation method. We present an analytical method for examining an entire experiment for the purpose of identifying candidate metabolites for further analysis. Using this method enables grouping of metabolites at different levels of structural similarity across multiple spectra in an experiment. We also present the R package chromatoplotsGUI to extend the analysis workflow using a set of interactive visualizations for each analysis stage. We find the visualizations of chromatoplotsGUI to be an effective tool in the task of debugging package dependencies.

Employment upon graduating:
Computer Scientist
USDA
Ames, IA

What HCI classes were invaluable to my success?
HCI 521

HCI issues that interest me: Visualization of Statistical Graphics

A website recommend, and why: http://flowingdata.com/; github.com
Examples of infovis and statistical graphics; social coding repository

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