Grammar Engineering for the Ekegusii Language in Grammatical Framework

The knowledge-driven economy uses technology, thereby increasing the demand for language tools and resources to acquire and distribute the knowledge. Such tools and resources are scarce for the under resourced, spoken Bantu languages. This paper develops a computational grammar for the Ekegusii language in the Grammatical Framework (GF) to bridge the gap. The grammar development uses a bottom-up and modular-driven approach. A machine translation experiment was set up to evaluate the grammar resulting in BLEU and PER of 55.95% and 19.49%, respectively. This work contributes by providing computational grammar for an under-resourced language, thus providing a platform for analysis and synthesis, plus a machine translation within the GF ecosystem.

Modeling adnominal possession in multilingual grammar engineering

In this paper we describe insights gained from building an extension to the LinGO Grammar Matrix customization system to cover adnominal possessive phrases. We show how the wide range of such constructions attested in the world's languages can be handled with the typical major phrase types used in HPSG and discuss the value of feature bundling in the multilingual grammar engineering context.

Theoretical linguistics and grammar engineering as mutually constraining disciplines

This paper desribes four areas in which grammar engineers and theoretical linguists can interact. These include: using grammar engineering to confirm linguistic hypotheses; linguistic issues highlighted by grammar engineering; implementation capabilities guiding theoretical analyses; and insights into architecture issues. It is my hope that we will see more work in these areas in the future and more collaboration among grammar engineers and theoretical linguists. This is an area in which HPSG and LFG as a distinct advantage, given the strong communities and resources available.

Representing argument structure

Existing approaches to the representation of argument structure in grammar tend to focus either on semantics or on syntax. Our goal in this paper is to strike the right balance between the two levels by proposing an analysis that maintains the independence of the syntactic and semantic aspects of argument structure, and, at the same time, captures the interplay between the two levels. Our proposal is set in the context of the development of a large-scale grammar of Modern Hebrew within the framework of Head-driven Phrase Structure Grammar (HPSG). Consequently, an additional challenge it faces is to reconcile two conflicting desiderata: to be both linguistically coherentandrealistic in terms of the grammar engineering effort. We present a novel representation of argument structure that is fully implemented in HPSG, and demonstrate its many benefits to the coherence of our Hebrew grammar. We also highlight the additional dimensions of linguistic generalization that our proposal provides, which we believe are also applicable to grammars of other languages.