Results 1 to 10 of about 312,052 (308)

Assessing bias and precision in state policy evaluations: a comparative analysis of time-varying estimators using policy simulations. [PDF]

open access: yesAm J Epidemiol
Griswold M   +8 more
europepmc   +1 more source

Rare event ABC-SMC 2. [PDF]

open access: yesStat Comput
Kerama I, Thorne T, Everitt RG.
europepmc   +1 more source
Some of the next articles are maybe not open access.

A hybrid estimator for selectivity estimation

IEEE Transactions on Knowledge and Data Engineering, 1999
Traditional sampling-based estimators infer the actual selectivity of a query based purely on runtime information gathering, excluding the previously collected information, which underutilizes the information available. Table-based and parametric estimators extrapolate the actual selectivity of a query based only on the previously collected information,
Yibei Ling   +3 more
openaire   +2 more sources

Estimation of Variance of the Ratio Estimator

Biometrika, 1982
SUMMARY A general class of estimators of the variance of the ratio estimator is considered, which includes two standard estimators vo and v2 and approximates another estimator VH suggested by Royall & Eberhardt (1975). Asymptotic expansions for the variances and biases of the proposed estimators are obtained.
openaire   +1 more source

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