Hassan Ait-Kaci introduced the #/-term, an informational structure resembling feature-based functional structures but which also includes taxonomic inheritance (Ait-Kaci, 1984). We describe e-terms and how they have been incorporated into the Logic Grammar formalism. The result, which we call Inheritance Grammar, is a proper superset of DCG and includes many features of PATR-II. Its taxo-nomic ...

This paper describes a system in PROLOG for the automatic transforination of a grammar, written in LFG formalism, into a DCG-based parser. It demonstrates the main principles of the transformation, the representation of f-structures and constraints, the treatment of long-distance dependencies, and left rccursion. Finally some problem areas of the system and possibilities for overcoming them are...

This paper presents the design and implementation of an intelligent document understanding and reproduction system. The system analyses a printed document to create an electronic document. The electronic document is written in a standard type-setting language (L w), and is thus human usable. The output from processing the electronic document closely resembles the original printed document. A ne...

The sentential theory of propositional attitudes is very attractive to AI workers, but it is difficult to use such a theory to assign semantics to English sentences about attitudes. The problem is that a compositional semantics cannot easily build the logical forms that the theory requires. We present a new notation for a sentential theory, and a unification grammar that builds logical forms in...

The aim of this paper is to describe a technique for identifying the sources of several types of syntactic ambiguity in Arabic Sentences with a single parse only. Normally, any sentence with two or more structural representations is said to be syntactically ambiguous. However, Arabic sentences with only one structural representation may be ambiguous. Our technique for identifying Syntactic Ambi...

This paper proposes a generation method for feature-structured)ased unification grammars. As comlx~red with fixed ~rity term notation, feature structure notation is more tlexible for representing knowledge needed to generate idiom~ttic structures as well as genem~l constructions. The method enables feature strncture retrieval via nmltiple indices. The indexing mechanism, when used with a semant...

The paper presents an algorithm, written in PROLOG, for processing English sentences which contain either Gapping, Right Node Raising (RNR) or Reduced Conjunction (RC). The DCG (Definite Clause Grammar) formalism (Pereira & Warren 80) is adopted. The algorithm is highly efficient and capable of processing a full range of coordinate constructions containing any number of coordinate conjunctions ...

Since Heubner's (1985) pioneering study, there have been many studies on (mis) use/ non-use of articles by L2 learners from article-less and article languages. The present study investigated how Persian L2 learners of English produce and interpret English definite descriptions and demonstrative descriptions. It was assumed that definite and demonstrative descriptions share the same central sema...

Application of Cohen’s weighted kappa for inter-rater agreement requires the specification of a weighting matrix. An explicit formula for the determinants of the principal minors of the weighting matrix with Cicchetti–Allison weights is derived. Since all determinants are strictly positive, it follows that the Cicchetti–Allison weighting matrix is positive definite. © 2012 Elsevier B.V. All rig...