Semantic-based approach to improve the description and the discovery of Linguistic Web Services

This paper deals with the description and the discovery of Web Services in the linguistic information system. The previous studies have proved the lack of semantics within the descriptions of the linguistic Web Services (LingWS for short) which negatively affects the quality of their discovery. In order to overcome this problem, we propose to integrate the nonfunctional linguistic properties and their relationships inside the advertisements and to semantically annotate the several elements of the LingWS descriptions. Thus, we suggest an extension of OWL-S that promotes such a proposal. Moreover, we ensure the semantic annotation through a linguistic domain ontology that we have developed using the ISO standards of linguistic data categories (ISO 12620). This proposal is consolidated with the implementation of an editor called OWL-LingS (stands for OWL for Linguistic Services). As for the discovery task, we have extended the OWLS-MX hybrid matchmaker by integrating the nonfunctional linguistic properties within its matching algorithm. The obtained matchmaker, called OWL-LingS-MX, promotes the creation of the user requests according to the extended description of LingWS. The performance of OWL-LingS-MX matchmaker is shown through a comparison with three famous OWL-S matchmakers on the same computer. These systems are iSeM, OWLSM, and OWLS-MX.