A Domain Speci c Lexicon Acquisition Tool for Cross Language Information Retrieval

With the recent enormous increase of information dissemination via the web as in centive there is a growing interest in supporting tools for cross language retrieval In this paper we describe a disclosure and retrieval approach that ful lls the needs of both information providers and users by o ering fast and cheap access to a large amounts of documents from various language domains Relevant information can be retrieved irre spective of the language used for the speci cation of a query In order to realize this type of multilingual functionality the availability of several translation tools is needed both of a generic and a domain speci c nature Domain speci c tools are often not available or only against large costs In this paper we will therefore focus on a way to reduce these costs namely the automatic derivation of multilingual resources from so called parallel text corpora The bene ts of this approach will be illustrated for an example system i e the demonstrator developed within the project Twenty One which is tuned to information from the area of sustainable development