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This paper reports the results of feature reduction in the analysis of a population based dataset for which there were no specific target variables. All attributes were assessed as potential targets in models derived from the full dataset and from subsets of it. The feature selection methods used were of the filter and wrapper types as well as clustering(More)
INTRODUCTION The clinical need for needle-based therapies capable of accessing tissues unreachable by conventional needles has motivated substantial research into steerable needles (see [1] and [2] for a review of these technologies). In particular, it has been observed that curved paths can be useful in percutaneous procedures [3]. Gilbert, et al., showed(More)
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