Abstract The Question Answering (QA) task aims to provide precise and quick answers to
user questions from a collection of documents or a database. This kind of IR system is sorely …

In this paper we motivate why it is crucial to associate linguistic information with ontologies
and why more expressive models, beyond the label systems implemented in RDF, OWL and …

Search and information retrieval systems are becoming more expressive in interpreting user
queries beyond the traditional weighted bag-of-words model of document retrieval. For …

While the amount of knowledge available as linked data grows, so does the need for
providing end users with access to this knowledge. Especially question answering systems …

Information providers are faced with a critical challenge to process, retrieve and present
information to their users in order to satisfy their complex information needs, because data …

The decentral architecture behind the Web has led to pieces of information being distributed
across data sources with varying structure. Hence, answering complex questions often …

A complex video event classification, search and retrieval system can generate a semantic
representation of a video or of segments within the video, based on one or more complex …

Currently, the dominant technology for providing non-technical users with access to Linked
Data is keyword-based search. This is problematic because keywords are often inadequate …

As modern search engines are approaching the ability to deal with queries expressed in
natural language, full support of natural language interfaces seems to be the next step in the …

A computing device displays a data visualization interface and receives user selection of a
data source and a natural language command directed to the data source. The device forms …