Browsing by Subject "Empirical likelihood"

Now showing items 1-7 of 7

    • Article  

      Density ratio model selection 

      Fokianos, Konstantinos (2007)
      The density ratio model presumes that the log-likelihood ratio of two unknown densities is of some known parametric linear form. However, the choice of the functional form has an impact on both estimation and testing. The ...
    • Article  

      Merging information for semiparametric density estimation 

      Fokianos, Konstantinos (2004)
      The density ratio model specifies that the likelihood ratio of m - 1 probability density functions with respect to the mth is of known parametric form without reference to any parametric model. We study the semiparametric ...
    • Article  

      A note on monte carlo maximization by the density ratio model 

      Fokianos, Konstantinos; Qin, J. (2008)
      It is well known that untractable normalizing constants of probability density functions complicate the calculation of maximum likelihood estimators. Usually numerical or Monte Carlo methods are employed in order to obtain ...
    • Article  

      On the effect of misspecifying the density ratio model 

      Fokianos, Konstantinos; Kaimi, I. (2006)
      The density ratio model specifies that the log-likelihood ratio of two unknown densities is of known linear form which depends on some finite dimensional parameters. The model can be broadened to allow for m-samples in a ...
    • Article  

      Order-restricted semiparametric inference for the power bias model 

      Davidov, O.; Fokianos, Konstantinos; Iliopoulos, George (2010)
      The power bias model, a generalization of length-biased sampling, is introduced and investigated in detail. In particular, attention is focused on order-restricted inference. We show that the power bias model is an example ...
    • Article  

      Statistical comparison of algorithms 

      Kedem, B.; Wolff, D. B.; Fokianos, Konstantinos (2004)
      A "reference" algorithm or instrument and its various "distortions" are considered, where the distortions carry some valid information about the reference. The objective is to combine data from the reference and the ...
    • Article  

      A two-sample model for the comparison of radiation doses 

      Fokianos, Konstantinos; Sarrou, I.; Pashalidis, Ioannis (2005)
      The t-test is one of the most well known parametric statistical procedures that can be applied to the problem of two-sample comparison. However, it relies on several assumptions that might not be satisfied in practice and ...