Comment on Article by Celeux Et Al
نویسنده
چکیده
The authors point to several problems occurring if DIC = 2D(θ) − D(θ) is applied to missing data models: (i) the focus of the model depends on whether the missing data z are considered as observations or as parameters or integrated out; (ii) the parameter θ may be non-identifiable; (iii) θ can be a poor estimator of θ. They then investigate modifications of DIC mainly based on estimates other than θ in D(θ) respectively pD = D(θ) − D(θ) and/or on integration w.r.t. the missing data.
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