Performance metrics are used in various stages of the process aimed at solving a classification problem. Unfortunately, most of these metrics are in fact biased, meaning that they strictly depend on the class ratio –i.e., on the imbalance between negative and positive samples. After pointing to the source of bias for the most acknowledged metrics, novel unbiased metrics are defined, able to cap...

among various practical measures used for restriction of the ground surface settlement in such tunnels driven in soft ground, selection of an appropriate excavation method plays a significant role. in this paper, employing suggested diagram by yu & chern, corresponding values of niayesh tunnel has been inserted into the diagram. later, two excavation methods namely: central diaphragm and si...

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In pattern forming systems such as Rayleigh-Bénard convection or directional solidification, a large number of linearly stable, patterned steady states exist when the basic, simple steady state is unstable. Which of these steady states will be realized in a given experiment appears to depend on unobservable details of the system’s initial conditions. We show, however, that weak, Gaussian white ...

The increase in complexity of integrated circuits results in the need to develop hardware platforms shared among a set of applications in the same domain. Today’s general purpose processors cannot satisfy the future aggressive timing and power constraints for a specific application. On the other hand, conventional ASIC design methodologies are costly and require a long time-to-market for today’...