The statistics of natural images have often been used to account for various properties of animal visual systems. However, for most visual tasks, the images themselves are not important; it is the physical properties of the surfaces which generated them that guide behaviour. Here, we present statistical characterisations of the surface reflectances encountered within four different visual envir...

introduction genetic evaluation and estimation of breeding value are one of the most fundamental elements of breeding programmes for genetic improvement. recently, genomic selection has become an efficient method to approach this aim. the accuracy of estimated genomic breeding value is the most important factor in genomic selection. different studies have been performed addressing the factors a...

The development of objective prior distributions for discrete parameter spaces is considered. Formal approaches to such development – such as the reference prior approach – often result in a constant prior for a discrete parameter, which is questionable for problems that exhibit certain types of structure. To take advantage of structure, this article proposes embedding the original problem in a...

The prediction distribution of generalized geometric series distribution (GGSD) and of its truncated and size-biased forms is derived and studied under the non-informative and beta prior distributions. The prediction distributions for all the models are beta distribution, but the parameters of the prediction distributions depend on the choice of the prior distribution as well as the model under...

As part of their analysis of the NORTA method, Ghosh and Henderson [2003] developed an algorithm for generating a random correlation matrix. The derivation of the algorithm is correct up until the discussion of the parameters of the beta distribution on page 288. The parameters α1 and α2 were reported to take the values (k − 1)/2 and (d − k)/2 respectively. The value of α2 is incorrect, and sho...

We develop a new continuous distribution called the beta-Burr type X distribution that extends the Burr type X distribution. The properties provide a comprehensive mathematical treatment of this distribution. Further more, various structural properties of the new distribution are derived, that includes moment generating function and the rth moment thus generalizing some results in the literatur...

Aim The aim of this study was to obtain more accurate estimates of the liver cancer incidence rate after correcting for misclassification error in cancer registry across Iranian provinces. Background Nowadays having a thorough knowledge of geographic distribution of disease incidence has become essential for identifying the influential factors on cancer incidence. Methods Data of liver canc...

In this paper we deal with a degenerate version of the trisecant conjecture (see Welters [W1]). Let (X , [Θ]) be an indecomposable principally polarized abelian variety and let Θ be a symmetric representative of the polarization. We shall denote by θ a non-zero section of the sheaf O X (Θ). The linear system |2Θ| is base-point-free and it is independent of the choice of Θ. The image of the morp...

background: skin cancer can be treated by various methods. electron radiotherapy has been a useful therapeutic modality in the treatment of skin cancers in areas which are difficult to cure by other methods. depth dose distribution of 166ho using varskin2 code is presented in this work. material and methods: depth dose distribution of 166ho was calculated, using varskin2 code by adding of 166ho...