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stat.ME2017
Estimating Tail Probabilities of the Ratio of the Largest Eigenvalue to the Trace of a Wishart Matrix
Yinqiu He, Gongjun Xu
This paper develops an efficient Monte Carlo method to estimate the tail probabilities of the ratio of the largest eigenvalue to the trace of the Wishart matrix, which plays an imp…
stat.ME2017
The Sufficient and Necessary Condition for the Identifiability and Estimability of the DINA Model
Yuqi Gu, Gongjun Xu
Cognitive Diagnosis Models (CDMs) are useful statistical tools in cognitive diagnosis assessment. However, as many other latent variable models, the CDMs often suffer from the non-…