
doi: 10.1111/sjos.12042
handle: 10852/62370 , 11250/226105
ABSTRACTWe derive two types of Akaike information criterion (AIC)‐like model‐selection formulae for the semiparametric pseudo‐maximum likelihood procedure. We first adapt the arguments leading to the original AIC formula, related to empirical estimation of a certain Kullback–Leibler information distance. This gives a significantly different formula compared with the AIC, which we name the copula information criterion. However, we show that such a model‐selection procedure cannot exist for copula models with densities that grow very fast near the edge of the unit cube. This problem affects most popular copula models. We then derive what we call the cross‐validation copula information criterion, which exists under weak conditions and is a first‐order approximation to exact cross validation. This formula is very similar to the standard AIC formula but has slightly different motivation. A brief illustration with real data is given.
model selection, 330, cross-validation-CIC, maximum pseudo-likelihood estimators, 510, CIC, copulae, Asymptotic properties of nonparametric inference, AIC, multivariate rank statistics, Nonparametric hypothesis testing, Asymptotic properties of parametric estimators
model selection, 330, cross-validation-CIC, maximum pseudo-likelihood estimators, 510, CIC, copulae, Asymptotic properties of nonparametric inference, AIC, multivariate rank statistics, Nonparametric hypothesis testing, Asymptotic properties of parametric estimators
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 75 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
