This paper presents a novel strategy for temporal coalescing. Temporal coalescing merges the temporal extents of value-equivalent tuples. A temporal extent is usually coalesced of...
Linked Data semantic sources, in particular DBpedia, can be used to answer many user queries. PowerAqua is an open multi-ontology Question Answering (QA) system for the Semantic We...
Vanessa Lopez, Andriy Nikolov, Marta Sabou, Victor...
From beginning of 1994 to the end of 1996, the IRO-DB ESPRIT project has developed tools for accessing relational and object-oriented databases in an integrated way. The system is...
Peter Fankhauser, Georges Gardarin, M. Lopez, J. M...
In order to navigate huge document collections efficiently, tagged hierarchical structures can be used. For users, it is important to correctly interpret tag combinations. In this ...
Web search engines often federate many user queries to relevant structured databases. For example, a product related query might be federated to a product database containing thei...