- The core innovation claimed by the paper is the reduction in computational complexity through a two-stage solution, first estimating marginals and then dependencies. However, this approach isn't novel, as seen in references [1,2]. The paper would benefit from a clearer distinction of how its methodology differs significantly from these existing methods.
- The paper's primary contribution seems to be an incremental advancement in efficiency over the TACTiS approach. More substantial evidence or arguments are needed to establish this as a significant contribution to the field.
- When evaluating the model's efficacy, the improvement in terms of Negative Log-Likelihood (NLL) is notable. However, the Mean Continuous Ranked Probability Score (CRPS) metric indicates that these improvements are only marginal when compared to the TACTiS model.
[1] Andersen, Elisabeth Wreford. "Two-stage estimation in copula models used in family studies." Lifetime Data Analysis 11 (2005)
[2] Joe, Harry. "Asymptotic efficiency of the two-stage estimation method for copula-based models." Journal of Multivariate Analysis 94.2 (2005).
- The paper's primary contribution seems to be an incremental advancement in efficiency over the TACTiS approach. More substantial evidence or arguments are needed to establish this as a significant contribution to the field.