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Large variations in the pattern of normal fetal heart-rate traces near term are described. The presence of flat or bimodal frequency distributions of pulse intervals in these traces complicates the derivation of a baseline by statistical methods. A system is described for deriving an appropriate baseline from which accelerations or decelerations may be(More)
Subquadrangles are a natural way in which to represent constraints as they do not restrict any subset of their scope. There are already known methods for converting any given constraint into a set of subquadrangles, but we require a method by which an entire constraint satisfaction problem instance can be converted as a whole. In this paper we present two(More)
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