Besides good predictive performance, the naive Bayesian classifier can also offer a valuable insight into the structure of the training data and effects of the attributes on the class probabilities. This structure may be effectively revealed through visualization of the classifier. We propose a new way to visualize the naive Bayesian model in the form of a nomogram. The advantages of the propos...

We read with great interest the recent article by Pan et al describing the development of a nomogram to predict the 5-year and 8-year survival probability for patients with nondisseminated nasopharyngeal cancer. However, there are some aspects surrounding the evaluation of the model and reporting of the study that are of concern. When evaluating the performance of a clinical prediction model, i...

The functions, w = f(z), that describe the transformation of Fresnel's reflection coefficients of parallel and perpendicularly polarized light between normal and oblique incidence, as well as their inverses, z = g(w), are studied in detail as conformal mappings between the complex z and w planes for angles of incidence of 15, 30, 45, 60, and 75 degrees . New nomograms are obtained for the deter...

The locus of all points in the complex plane of the dielectric function ?[?(r) + j?(i) = |?| exp(jtheta)], that represent all possible interfaces characterized by the same pseudo-Brewster angle theta(p)B of minimum p reflectance, is derived in the polar form: |?| = l cos(zeta/3), where l = 2(tan(2)Phi(p)B)k, zeta = arccos(- costheta cos(2)Phi(p)B/k(3)), and k = (1 - 2/3 sin(2)Phi(p)B)(1/2). Fam...

Currently, increasing the efficiency of using fleet cars and functioning a road enterprise for construction highways by forming an optimal set machines based on developed normative labor intensity production vehicles elements highways, in mixed enterprise, is very relevant task. A technique has been optimizing "norm" input machines. Methodology standardizing equipment calculating rate developed...