Modern epidemiologic and clinical studies aimed at analyzing a time to an event endpoint T routinely collect, in addition to (possibly censored) information on T, high dimensional data often in the form of baseline (i.e. timeindependent covariates V (0)) and time-varying covariates V (t) , t > 0, measured at frequent intervals. Scientific interest, however, often focuses on a low dimensional fu...

As an essential data processing technology, cluster analysis has been widely used in various fields. In clustering, it is necessary to select appropriate measures evaluate the similarity data. this paper, firstly, a center selection method based on grey relational degree proposed solve problem of sensitivity initial selection. Secondly, combining advantages Euclidean distance, DTW and SPDTW wei...