Date of Award

Spring 12-8-2018

Document Type


Degree Name

Master of Science (MS)

First Advisor

Danielle Albers. Szafir

Second Advisor

Chenhao Tan

Third Advisor

Qin Lv


Many real-world datasets are incomplete due to factors such as data collection failures or misalignments between fused datasets. Visualizations of incomplete datasets should allow analysts to draw conclusions from their data while effectively reasoning about the quality of the data and resulting conclusions. I conducted a pair of crowdsourced studies to measure how the methods used to impute and visualize missing data may bias perceptions of data quality. The experiments used different design choices for line graphs and bar charts to estimate averages and trends in incomplete time series datasets. The results provide preliminary guidance for visualization designers to consider when working with incomplete data in different domains and scenarios.

Available for download on Sunday, October 10, 2021