Sign Language & Linguistics - Volume 10, Issue 1, 2007

The work reported in this study is based on research that has been carried out while developing a sign synthesis system for Greek Sign Language (GSL): theoretical linguistic analysis as well as lexicon and grammar resources derived from this analysis. We focus on the organisation of linguistic knowledge that initiates the multi-functional processing required to achieve sign generation performed by a virtual signer. In this context, structure rules and lexical coding support sign synthesis of GSL utterances, by exploitation of avatar technologies for the representation of the linguistic message. Sign generation involves two subsystems: a Greek-to-GSL conversion subsystem and a sign performance subsystem. The conversion subsystem matches input strings of written Greek-to-GSL structure patterns, exploiting Natural Language Processing (NLP) mechanisms. The sign performance subsystem uses parsed output of GSL structure patterns, enriched with sign-specific information, to activate a virtual signer for the performance of properly coded linguistic messages. Both the conversion and the synthesis procedure are based on adequately constructed electronic linguistic resources. Applicability of sign synthesis is demonstrated with the example of a Web-based prototype environment for GSL grammar teaching.

This paper reports on a comparison of word order issues, and more specifically on the order of the verb and its arguments, in two unrelated sign languages: South African Sign Language and Flemish Sign Language. The study comprises the first part of a larger project in which a number of grammatical mechanisms and structures are compared across the two sign languages, using a corpus consisting of similar VGT and SASL-data of a various nature. The overall goal of the project is to contribute to a further understanding of the issue of the degree of similarity across unrelated sign languages. However, the different studies also mean a further exploration of the grammars of the two languages involved. In this paper the focus is on the analysis of isolated declarative sentences elicited by means of pictures. The results yield some interesting similarities across all signers but also indicate that — especially with regard to constituent order — there are important differences between the two languages.

Word order flexibility in sign languages has led some scholars to conclude that sign languages do not have any hierarchical structure. This paper shows that the word order patterns within Taiwan Sign Language nominals precisely follow Greenberg’s (1963:87) Universal 20. The manifestation of the universal in this sign language indicates that like oral languages, sign languages have hierarchical structures. Moreover, this paper also discusses the relation between syntactic hierarchy and linearization from the perspective of Taiwan Sign Language. The fact that the word order possibilities stated in Universal 20 are attested in a single language challenges the very notion of language parameter.