The model of Niyogi (2002) simulates the mutual bootstrapping effects of syntactic and semantic knowledge in verb learning, that is the use of syntax to aid in inducing the semantics of a verb, and the use of semantics to narrow down possible syntactic frames in which a verb can participate.
this model relies on manually assigned priors for associations between syntactic and semantic features, and is tested on a toy language with very limited vocabulary and a constrained syntax.