The paper is focused on a concept-based query language that permits querying by using only application domain concepts. The query language has features making it simple and transparent for end-users: each query operation is completely defined by its result signature and nested operation’s signatures; a query’s signature represents an unordered set of application domain concepts; join predicates...

In this paper we describe an alternative solution to the impedance-mismatch problem between programming and query languages: rather than embed queries in a programming language, as done in LINQ [4] systems, we embed programs in a query language, and dub the result “QINL”. We have implemented our solution in a prototype software system, FQL, available at categoricaldata.net/fql.html. Because bot...

The rapid increase of multimedia data makes multimedia query more and more important. To better satisfy users’ query requirements, developing a functional multimedia query language is becoming a promising and interesting task. In this paper, we propose a graphical multimedia query language called GMQL, which is developed based on a semi-structured data organization model. In GMQL, we combine th...

For many cross-language retrieval tasks, the predominant approach is to translate the query into the language of the document collection (target language). This often gives results as good as, if not better, than translating the document collection into the query language (source language). In this paper, we evaluate query versus document translation for the ImageCLEF 2004 bilingual ad hoc retr...