Horizontal service composition for language services

Ahlem Ben Hassine, Shigeo Matsubara, Toru Ishida

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)


In the Language Grid, automatically composing Web services is a crucial task. This task involves vertical and horizontal composition. Vertical composition consists of defining an appropriate combination of simple processes to perform a composition task. Horizontal composition consists of determining the most appropriate Web service from among a set of functionally equivalent ones for each component process. The latter is important in language services. For the horizontal composition of Web services, we propose a generic formalization of any Web service composition problem based on a constraint optimization problem (COP) and then propose an incremental user-intervention-based protocol to find the optimal composite Web service according to some predefined criteria at run-time.

Original languageEnglish
Title of host publicationCognitive Technologies
Number of pages15
Publication statusPublished - 2011 Jan 1
Externally publishedYes

Publication series

NameCognitive Technologies
ISSN (Print)1611-2482


ASJC Scopus subject areas

  • Software
  • Artificial Intelligence

Cite this

Hassine, A. B., Matsubara, S., & Ishida, T. (2011). Horizontal service composition for language services. In Cognitive Technologies (9783642211775 ed., pp. 53-67). (Cognitive Technologies; No. 9783642211775). Springer-Verlag. https://doi.org/10.1007/978-3-642-21178-2_4