The varying coefficient (VC) model is a generalization of ordinary linear model, which can not only retain strong interpretability but also has the flexibility nonparametric model. In this paper, we investigate VC with hierarchical structure. A unified variable selection method for proposed, simultaneously select nonzero effects and estimate unknown functions. Meanwhile, selected enforces struc...

Although it is generally accepted that hierarchical phrase structures are instrumental in describing human language, their role in cognitive processing is still debated. We investigated the role of hierarchical structure in sentence processing by implementing a range of probabilistic language models, some of which depended on hierarchical structure, and others of which relied on sequential stru...