Sequential rerandomization

Randomization , Rerandomization and Matching in Clinical Trials

Randomization was a key contribution of Sir Ronald Fisher to the conduct of scientific investigations. Along with the protective aspects of randomization, Fisher also noted that the distribution induced by randomization can form the basis of inference. Indeed, in some instances, the randomization test and related procedures seem to be the only tools available for inference. Several authors have...

Haphazard Intentional Allocation and Rerandomization to Improve Covariate Balance in Experiments

In randomized experiments, a single random allocation can yield groups that differ meaningfully with respect to a given covariate. Furthermore, it is unfeasible to control the allocation with respect to a moderate number of covariates. As a response to this problem, Morgan and Rubin [1, 2] proposed an approach based on rerandomization to ensure that the final allocation obtained is balanced. Ho...

Sequential Methods and Their Applications

Sequential?

This paper is a survey where we try to organise the known answers to the question whether a given finite automaton with multiplicity in a semiring K is equivalent to a sequential, or input deterministic, one. We shall see that depending on K, the question goes from obvious to open, that the answer goes from yes to undecidable. We review results on sequentiality in the cases of series of finite ...

Mining hybrid sequential patterns and sequential rules

The problem addressed in this paper is to discover the frequently occurred sequential patterns from databases. Basically, the existing studies on finding sequential patterns can be roughly classified into two main categories. In the first category, the discovered patterns are continuous patterns, where all the elements in the pattern appear in consecutive positions in transactions. The second c...