117 citations · 329 across the 10 of their papers we have counts for
10 papers
Efficient randomized-adaptive designs
Feifang Hu, Li-Xin Zhang, Xuming He
Response-adaptive randomization has recently attracted a lot of attention in the literature. In this paper, we propose a new and simple family of response-adaptive randomization pr…
The Gaussian approximation for multi-color generalized Friedman's urn model
Li-Xin Zhang, Feifang Hu
The Friedman's urn model is a popular urn model which is widely used in many disciplines. In particular, it is extensively used in treatment allocation schemes in clinical trials.…
A New Family of Covariate-Adjusted Response Adaptive Designs and their Asymptotic Properties
Li-Xin Zhang, Feifang Hu
It is often important to incorporating covariate information in the design of clinical trials. In literature, there are many designs of using stratification and covariate-adaptive…
Adaptive Allocation Theory in Clinical Trials
Li-Xin Zhang
Various adaptive randomization procedures (adaptive designs) have been proposed to clinical trials. This paper discusses several broad families of procedures, such as the play-the-…
On the rates of the other law of the logarithm
Li-Xin Zhang
By using the strong approximation, this paper establishes several limit results on the convergent rate of a infinite series of probabilities on the other law of iterated logarithm.
Precise Asymptotics in Chung's law of the iterated logarithm
Li-Xin Zhang
This paper gives sufficent and necessary conditions on a kind of limit results to hold on the precise convergent rate of an infinite series of probabilities on the Chung type law o…