The package implements Louis' identity for CUB models for rating data, to retrieve the observed information matrix within the Expectation-Maximization algorithm. On this basis, an acceleration strategy is derived and then a best-subset search through the covariate space for feeling and uncertainty is implemented.
Rosaria Simone
| Package: | fastCUB |
| Type: | Package |
| Version: | 0.0.2 |
| Date: | 2019-03-05 |
Louis T.A. (1982). Finding the Observed Information Matrix when Using the EM Algorithm,
Journal of the Royal Statistical Society, Series B, 44, 226--233
Simone R. (2020). An Accelerated EM algorithm for mixture models with uncertainty for rating data.
under Review