Computer Implementation of MMLE/EM Algorithm for Two-Parametric Logistic Model


Цветков, Димитър (2003) Computer Implementation of MMLE/EM Algorithm for Two-Parametric Logistic Model Internaional Conference on Computer Systems and Technlologies – CompSysTech'2003.


 Concurrent estimation of the structural and ability parameters in the IRT models shows some non-trivial problems as lack of convergence or obtaining of non-realistic values. One can look for various heuristic improvements to solve this situation but here we will describe another approach – Marginal Maximum Likelihood Estimation (MMLE) [1, 3] instead of usual Maximum Likelihood Estimation [2, 4]. We also will describe the very handy EM implementation of MMLE [2]. We give the corresponding formula
  Статия
  IRT, MMLE/EM, two-parametric logistic model


Природни науки, математика и информатика Математика
Природни науки, математика и информатика Информатика и компютърни науки

Natural sciences, mathematics and informatics Mathematics
Natural sciences, mathematics and informatics Informatics and Computer Science

 Издадено
  4762
 Димитър Цветков

Научният архив поддържа инициативата за отворен достъп OAI 2.0 с начален адрес: http://da.uni-vt.bg/oai2/