Pre-election polls can suffer from survey effects. For instance, individuals taking part in the poll may become more aware of the upcoming election so that they become more inclined to vote. Such effects cause biases in forecasted outcomes of elections. We propose a simple methodology that takes...

Pre-election polls can suffer from survey effects. For instance, individuals taking part in the poll may become more aware of the upcoming election so that they become more inclined to vote. Such effects cause biases in forecasted outcomes of elections. We propose a simple methodology that takes...

Modernization of study occasions and raise of education quality at SU Opava, started in the year 2006, continuous demands of educational programmes innovation at Silesian University are being discussed and solved. These demands arise primarily due to information and communication technology...

In this paper, we prove that for the fractional Brownian motion Bt with Hurst parameter H, the quasi-sure limit of the form is zero, where , p>1/H.

Count data often exhibit overdispersion and/or require an adjustment for zero outcomes with respect to a Poisson model. Zero-modified Poisson (ZMP) and zeromodified generalized Poisson (ZMGP) regression models are useful classes of models for such data. In the literature so far only score tests...