Multi-Engine Machine Translation System Based On Web Services

Machine Translation has gained great progress with the fast development of the Internet, the globalization of economy and the wide expansion of Electronic Business. Usually, users obtain Machine Translation services through purchasing corresponding software or visiting the web sites which provide online translation services. Each of these methods has its limitation. For example, users have to pay expensively to obtain a license, or the translation is always unsatisfied when using online translation services.As a distributed computing architecture, Web Services, together with J2EE technologies, will become the de facto standard for developing Web-based applications. In this paper, we propose a mechanism that wraps machine translation methods as web services, so that both enterprises and individuals can conveniently enjoy these translation services with high translation quality and dramatically low cost.Chapter 1 gives an introduction to Web Services and Machine Translation, and provides a background and a motive for our study.Chapter 2 gives some important concepts about Web Services, and introduces the three standard technologies, such as UDDI, WSDL and SOAP, used to implement Web services.Chapter 3 gives some important concepts and methods about Machine Translation, observes a historical overview, and compares the merits and demerits of some mainly used machine translation methods. After that, we introduce a method of Multi-Engine Machine Translation and show its advantagesin getting more accurate translations.Chapter 4 shows an implementation of multi-engine machine translation system based on Web Services technologies, where stateless session bean serves as service endpoint, and JAX-RPC (Java API for XML based RPC) is used to call remote services through SOAP message.Chapter 5 concludes this thesis by stating the advantages, limitations and further works of our Machine Translation services architecture.