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BACKGROUND It is unclear whether more timely cancer diagnosis brings favourable outcomes, with much of the previous evidence, in some cancers, being equivocal. We set out to determine whether there is an association between time to diagnosis, treatment and clinical outcomes, across all cancers for symptomatic presentations. METHODS Systematic review of(More)
Colisure presence-absence medium was compared with standard reference methods for detecting low numbers of total coliform bacteria and E. coli in drinking water when the bacteria were subjected to chlorine stress. When Colisure was compared with established reference methods to detect total coliforms in dilute, disinfected samples, Colisure yielded more(More)
Approved for public release; further dissemination unlimited. NOTICE: This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, make any warranty, express or(More)
We present The Cruncher, a simple representation framework and algorithm based on minimum description length for automatically forming an ontology of concepts from attribute-value data sets. Although unsupervised, when The Cruncher is applied to an animal data set, it produces a nearly zoologically accurate categorization. We demonstrate The Cruncher's(More)
A central problem in decision support tasks is operator overload , in which a human operator's performance suffers because he or she is overwhelmed by the cognitive requirements of a task. To alleviate this problem, it would be useful to provide the human operator with an automated assistant to share some of the task's cognitive load. However, the(More)
Many future decision support systems will be human-centric, i.e., require substantial human oversight and control. Because these systems often provide critical services, high assurance is needed that they satisfy their requirements. This paper, the product of an interdisciplinary research team of experts in formal methods, adaptive agents, and cognitive(More)