We give an example of a neural net withou t hidden layers and with a sigmoid transfer funct ion, together with a training set of binary vectors, for which the sum of the squared errors, regarded as a function of the weights, has a local minimum which is not a global minimum. The example consists of a set of 125 t raining instances, with four weights and a th reshold to be learned. We do not kno...

the objective of this study was to determine the allowed and desired limits for heavy soils of texture (clay loom), as it has operational capability (friability), these limits were 6.34 mm for planting and 10.62 mm for harvesting in each raining or irrigation episode. we determined some factors that affect soil wetness and water content as follow: the amount and severity of rain, the condition ...

ethods: Sixteen surgical residents had initial psychomotor bility testing; then they were randomized to either the VR raining group (n 8) or the control non-VR-trained group (n 8). Virtual reality training was done using the MIST-VR imulator diathermy task. Training was considered complete hen expert criterion levels were achieved. All subjects in both roups then performed laparoscopic cholecys...

I sat with my aunt and uncle, Linda and Robert Glancy, at the kitchen table of their home in North London’s Hampstead Garden Suburb. As usual for Sunday lunch, smoked salmon, egg salad, liver pâté and bagels featured prominently, and though I can’t quite recall, it was likely raining. “Well, Graham started swimming when?”, my uncle asked himself, after I questioned him about my dad’s athletic c...