Uncertainty Annotated Databases - A Lightweight Approach for Approximating Certain Answers (extended version)
arXiv: Databases, 2019.
Certain answers are a principled method for coping with uncertainty that arises in many practical data management tasks. Unfortunately, this method is expensive and may exclude useful (if uncertain) answers. Thus, users frequently resort to less principled approaches to resolve the uncertainty. In this paper, we propose Uncertainty Annota...More
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