Sarah O'Connell

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Constraint programming is a technology which is now widely used to solve combinatorial problems in industrial applications. However, using it requires considerable knowledge and expertise in the field of constraint reasoning. This paper introduces a framework for automatically learning constraint networks from sets of instances that are either acceptable(More)
In this paper we view interactive constraint acquisition as the process of learning constraints from examples and focus on the roles played by both the user and the system during an interactive session. We consider our user as a teacher who provides positive examples to an automated constraint acquisition system. Each positive example represents a solution(More)
Delayed diagnosis of HIV infection has negative clinical, economic and public health implications. The study primary aim was to identify factors associated with late HIV presentation (Late Presenters [LPS], CD4 cell count < 350 cells/mm3). A secondary aim was to identify changing trends of late HIV presentation from 2002 to 2014 at our centre. A(More)
We describe a 79-year-old Irish man who, because he had hyposplenism and splenic atrophy due to adult celiac disease, became critically ill from a severe Babesia divergens infection. Greater awareness of the possible consequences of splenic dysfunction from adult celiac disease, such as serious pneumococcal infections and babesiosis, is warranted.
In an era of antiretroviral therapy (ART) for all HIV-1-infected patients, our primary aim was to describe prevalence and characteristics of patients disengaged from care at an urban ambulatory HIV clinic. We conducted a nested case-control study. All patients who disengaged from care (defined as being lost to follow-up for at least one year) from 2007 to(More)
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