Tuplespace-based computing for the Semantic Web: a survey of the state-of-the-art

Lyndon J. B. Nixon, Elena Simperl, Reto Krummenacher, Francisco Martin-Recuerda
2008 Knowledge engineering review (Print)  
Semantic technologies promise to solve many challenging problems of the present Web applications. As they achieve a feasible level of maturity, they become increasingly accepted in various business settings at enterprise level. By contrast, their usability in open environments such as the Webwith respect to issues such as scalability, dynamism and openness-still requires additional investigation. In particular, Semantic Web services have inherited the Web service communication model, which is
more » ... imarily based on synchronous message exchange technology such as remote procedure call (RPC), thus being incompatible with the REST (REpresentational State Transfer) architectural model of the Web. Recent advances in the field of middleware propose 'semantic tuplespace computing' as an instrument for coping with this situation. Arguing that truly Webcompliant Web service communication should be based, analogously to the conventional Web, on shared access to persistently published data instead of message passing, space-based middleware introduces a coordination infrastructure by means of which services can exchange information in a time-and reference-decoupled manner. In this article, we introduce the most important approaches in this newly emerging field. Our objective is to analyze and compare the solutions proposed so far, thus giving an account of the current state-of-the-art, and identifying new directions of research and development. BaseformService: Returns the lemmatized (base) form of the input word http://wortschatz.uni-leipzig.de:8100/axis/services/Baseform?wsdl SentencesService: Returns sample sentences containing the input word http://wortschatz.uni-leipzig.de:8100/axis/services/Sentences?wsdl SynonymsService: Thesaurus which returns synonyms of the input word http://wortschatz.uni-leipzig.de:8100/axis/services/Synonyms?wsdl RightCollocationFinderService: Returns linguistic collocations that occur to the right of the given input word http://wortschatz.uni-leipzig.de:8100/axis/services/RightCollocationFinder?wsdl LeftCollocationFinderService: Returns linguistic collocations that occur to the left of the given input word http://wortschatz.uni-leipzig.de:8100/axis/services/LeftCollocationFinder?wsdl toi-wetter: The weather service of T-Online
doi:10.1017/s0269888907001221 fatcat:z6k24gw6ujcbnoz5f2p23iwoum