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Use of computer-aided detection (CAD) tools in screening mammography: a multidisciplinary investigation
We summarise a set of analyses and studies conducted to assess the effects of the use of a computer-aided detection (CAD) tool in breast screening. We have used an interdisciplinary approach that combines: (a) statistical analyses inspired by reliability modelling in engineering; (b) experimental studies of decisions of mammography experts using the tool, interpreted in the light of human factors psychology; and (c) ethnographic observations of the use of the tool both in trial conditions and in everyday screening practice. Our investigations have shown patterns of human behaviour and effects of computer-based advice that would not have been revealed by a standard clinical trial approach. For example, we found that the negligible measured effect of CAD could be explained by a range of effects on experts' decisions, beneficial in some cases and detrimental in others. There is some evidence of the latter effects being due to the experts using the computer tool differently from the intentions of the developers. We integrate insights from the different pieces of evidence and highlight their implications for the design, evaluation and deployment of this sort of computer tool
The effect of multidisciplinary collaborations on research diversification
This work verifies whether research diversification by a scientist is in some
measure related to their collaboration with multidisciplinary teams. The
analysis considers the publications achieved by 5300 Italian academics in the
sciences over the period 2004-2008. The findings show that a scientist's
outputs resulting from research diversification are more often than not the
result of collaborations with multidisciplinary teams. The effect becomes more
pronounced with larger and particularly with more diversified teams. This
phenomenon is observed both at the overall level and for the disciplinary
macro-areas
An Integrated Method for Determination of the Oswald Factor in a Multi-Fidelity Design Environment
Aircraft conceptual design often focuses on unconventional
configurations like for example forward
swept wings. Assessing the characteristics
of these configurations usually requires the use
of physic based analysis modules. This is due
to the fact that for unconventional configurations
no sucient database for historic based analysis
modules is available.
Nevertheless, physic based models require a
lot of input data and their computational cost can
be high. Generating input values in a trade study
manually is work-intensive and error-prone.
Conceptual design modules can be used to
generate sucient input data for physic based
models and their results can be re-integrated into
the conceptual design phase. In this study a direct
link between a conceptual design module
and an aerodynamic design module is presented.
Geometric information is generated by the conceptual
design module and the physic based results,
in form of the Oswald factor, are then fed
back.
Apart from the direct link, an equation for determination
of the Oswald factor is derived via a
Symbolic Regression Approach
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