Descripción: “...Documents are semantically enriched with annotations that are obtained from domain ontology. The extended semantic retrieval takes into account both, keywords expressed in the user query as well, its meaning, which is represented by ontology. ...”

Descripción: “...Through revising the ontological differentiation between relationships of constitution and causation, this paper shows that constructivism faces serious challenges in providing explanations for the unfolding of regionalism. ...”