DocumentCode
140965
Title
VoidWiz: Resolving incompleteness using network effects
Author
Christodoulakis, Christina ; Faloutsos, Christos ; Miller, Robert J.
Author_Institution
Dept. of Comput. Sci., Univ. of Toronto, Toronto, ON, Canada
fYear
2014
fDate
March 31 2014-April 4 2014
Firstpage
1230
Lastpage
1233
Abstract
If Lisa visits Dr. Brown, and there is no record of the drug he prescribed her, can we find it? Data sources, much to analysts´ dismay, are too often plagued with incompleteness, making business analytics over the data difficult. Data entries with incomplete values are ignored, making some analytic queries fail to accurately describe how an organization is performing. We introduce a principled way of performing value imputation on missing values, allowing a user to choose a correct value after viewing possible values and why they were inferred. We achieve this by turning our data into a graph network and performing link prediction on nodes of interest using the belief propagation algorithm.
Keywords
belief maintenance; data analysis; data visualisation; learning (artificial intelligence); VoidWiz system; analytic queries; belief propagation algorithm; business analytics; data entries; data sources; graph network; link prediction; network effects; value imputation; Algorithm design and analysis; Belief propagation; Clinical trials; Data visualization; Drugs; Educational institutions; Prediction algorithms;
fLanguage
English
Publisher
ieee
Conference_Titel
Data Engineering (ICDE), 2014 IEEE 30th International Conference on
Conference_Location
Chicago, IL
Type
conf
DOI
10.1109/ICDE.2014.6816748
Filename
6816748
Link To Document