Advanced information retrieval Web services for digital libraries

Web service as a standardized XML-based protocol has been useful for inter-system communication and integration. However, Web services in the IR domain have not been widely used. In a previous paper [Fu, Y., & Mostafa, J. (2004). Toward information retrieval Web services for digital libraries. IEEE/ACM Joint Conference on Digital Libraries 2004. Tucson, Arizona], we discussed a system supporting several information retrieval (IR) functions. This system called LUCAS is a Web service for extracting, weighing, and ranking terms. In this paper, we are going to discuss a more advanced version of the system called Lucas II. This updated implementation includes functions of term generation, clustering, and document classification that can be applied to different knowledge domains.