Ontojuris Project: A Multilingual Legal Document Search System Based on a Graphical Ontology Editor

The Ontojuris project consists of a multilingual system for legal information retrieval (IR) associated with an ontology editor. The system accepts queries in one language, and allows IR based on similarity of documents, written in one of several languages. The multilingual ontology editor works with the concept of Universal Words (UW´s). The UW´s are universal representations of things and objects, and it is developed inside the Universal Networking Language Project (UNL), allowing query expansion in a multilingual way. Query expansion can improve the searching process required by user, including additional terms which have similar meaning to the original query. In this study, we proposed a new expansion method which is based on domain ontology and UW´s, to achieve better performance for a multilingual IR. So, the Ontojuris project aims to facilitate access to information on legislation in the area of Intellectual Property Law, Consumer Rights and Electronic Law in the consortium formed by researches in Brazil, Chile, Spain and Argentina.