This paper investigates the sample weighting effect on Genetic Parallel Programming (GPP) that evolves parallel programs to solve the training samples captured directly from a real-world system. The distribution of these samples can be extremely biased. Standard GPP assigns equal weights to all samples. It slows down evolution because crowded regions of samples dominate the fitness evaluation a...

there are several methods to ranking dmus in data envelopment analysis (dea) and candidates in voting system. this paper proposes a new two phases method based on dea’s concepts. the first phase presents an aspiration rank for each candidate and second phase propose final ranking.

THE 55TH SESSION OF THE COMMISSION ON THE STATUS OF WOMEN (CSW) OF THE UNITED NATIONS (UN) closed last month with little fanfare, but there was cause for celebration. For the fi rst time, the CSW, traditionally a forum to examine improvement of women’s rights and gender equality, merged this broad interest with issues of science and technology (S&T). This makes sense because empowering women as...

Twisted mass QCD (tmQCD) has been introduced as a solution to the problem of unphysical fermion zero modes in lattice QCD with quarks of the Wilson type. We here argue that O(a) improvement of the tmQCD action and simple quark bilinear operators can be more economical than in the standard framework. In particular, an improved and renormalized estimator of the pion decay constant in two-flavour ...

Simulations in full QCD are extremely slow, and are still carried out far from the continuum limit. A possible solution for this problem is the use of improved actions, for which the simulation gives the continuum limit at higher values of the cutoff a, reducing computational costs. An important step in the improvement program was taken recently by the Alpha collaboration, with the nonperturbat...

We present a comprehensive study of the masses of pseudoscalar and vector mesons, as well as octet and decuplet baryons computed in O(a)-improved quenched lattice QCD. Results have been obtained using the nonperturbative definition of the improvement coefficient csw , and also its estimate in tadpole improved perturbation theory. We investigate effects of improvement on the incidence of excepti...

Abstract The endodontic revascularization may be an alternative treatment for necrotic immature teeth, however, several steps cause tooth discoloration. This study evaluated the use of three calcium silicate-based cements with different radiopacifying agents on color alteration (∆E) extracted premolars after simulation revascularization. Forty single rooted were shaped #1-6 gates Glidden drills...