Streszczenie. This paper presents a formal syntax framework of natural languages for computational linguistics. The abstract syntax of natural languages, particularly English, and their formal manipulations are described. On the basis of the abstract syntax, a universal language processing model and the deductive grammar of English are developed toward the formalization of Chomsky’s universal g...

This paper presents a novel technique called "universal guides" which explores inherent properties of logic grammars (changing variable binding status) in order to characterize tbrmal criteria for termination in a derivation process. The notion of universal guides also offers a new framework in which both parsing and generation can be viewed merely as two different instances of the same generic...

The outcome of scientific research depends on how a phenomenon is viewed and how the questions are phrased. This applies also to the nativist view of language acquisition. As a complement to MacWhinney’s discussion of nativism from the viewpoint of cognitive psychology, I would like to devote this commentary to the question of the title from the viewpoint of computational linguistics. Formally,...

In this paper, we present a method for comparing Lexicalized Tree Adjoining Grammars extracted from annotated corpora for three languages: English, Chinese and Korean. This method makes it possible to do a quantitative comparison between the syntactic structures of each language, thereby providing a way of testing the Universal Grammar Hypothesis, the foundation of modern linguistic theories. 1...