This dissertation focuses on developing and evaluating hybrid approaches for analyzing free-form text in the medical domain. This research draws on natural language processing (NLP) techniques that are used to parse and extract concepts based on a controlled vocabulary. Once important concepts are extracted, additional machine learning algorithms,…

The purpose of this qualitative study was to investigate how school administrators respond during a crisis. Relevant research pertaining to crisis decision-making will be presented, focusing on the three steps of crisis decision theory (a) assessing the severity of the negative event (b) determining response options, and (c) evaluating response…

The amount of online information has grown exponentially over the past few decades, and users become more and more dependent on ranking and recommendation systems to address their information seeking needs. The advance in information technologies has enabled users to provide feedback on the utilities of the underlying ranking and recommendation…