Organising large-scale Web information retrieval systems into hierarchies of topic-specific search resources can improve both the quality of results and the efficient use of com...
This paper addresses the various facets of emergent semantics in content retrieval systems such as Knowledge Sifter, an architecture and system based on the use of specialized agen...
— Query term suggestion that interactively expands the queries is an indispensable technique to help users formulate high-quality queries and has attracted much attention in the ...
The Web is a valuable source of language speci c resources but the process of collecting, organizing and utilizing these resources is di cult. We describe CorpusBuilder, an approa...
Large amounts of information are posted daily on the Web, such as articles published online by traditional news agencies or blog posts referring to and commenting on various events...
Odysseas Papapetrou, George Papadakis, Ekaterini I...