We study the existing models for right-censored competing risks data and with masked failure cause. By introducing a new random variable hidden behind the current models, we give a practical interpretation of the symmetry assumption made by almost all researchers in this field. We further point...

This article reports the results of an empirical study on summertime environmental performances of a pocket park in Hong Kong. The results suggest that (i) wind condition has a critical impact on outdoor air temperature (Ta), especially in a tropical area like Hong Kong and (ii) building...

Understanding and incorporating individuals’ preferences in decision making is increasingly considered essential in the health field. Data from DCEs can provide valuable insights into the trade-offs individuals are willing to undertake in respect to CRC screening. Such insights can be used by...

Consider the model "Y"&equals;"&bgr;"-super-′<b>X</b>&plus;"&epsi;". Let "F"₀ be the unknown cumulative distribution function of the random variable "&epsi;". Consistency of the semi-parametric Maximum likelihood estimator of ("&bgr;","F"₀), denoted by <formula format="inline"><file name="sjos_491_mu1.gif" type="gif" /></formula>, has not been established under any interval censorship (IC) model. We prove...

Consider nonparametric problems of estimating an unknown distribution function, F, under the loss L(F,a)=[integral operator] F(t)-a(t)2(F(t))[alpha](1 -F(t))[beta]dF(t), where [alpha][set membership, variant][-1,0] and [beta][set membership, variant][-1,1]. It is proved that the Empirical...

Cox's proportional hazards (PH) model is applicable to continuous random (response) variables as well as to discontinuous ones. We make two remarks on the PH models for discontinuous random (response) variables. (1) In general, the proportional hazards relation can only occur in the interior of...

In case 2 interval censoring the random survival time X of interest is not directly observable, but only known to have occurred before Y, between Y and Z, or after Z, where (Y, Z) is a pair of observable inspection times such that Y Z. We consider the large sample properties of the generalized...