Abstract Knowledge graphs such as Yago and Freebase have become a powerful asset for
enhancing search, and are being intensively used in both academia and industry. Many …

An increasing number of applications rely on RDF, OWL 2, and SPARQL for storing and
querying data. SPARQL, however, is not targeted towards end-users, and suitable query …

Purpose–The purpose of this paper is to discuss sentiment search, which not only retrieves
data related to submitted keywords but also identifies sentiment opinion implied in the …

Semantic search attempts to go beyond the current state of the art in information access by
addressing information needs on the semantic level, ie considering the meaning of users' …

Much research has been done to combine the fields of Databases and Natural Language
Processing. While many works focus on the problem of deriving a structured query for a …

Abstract Knowledge graphs (KGs) are a key ingredient to complement search results,
discover entities and their relations and support several knowledge discovery tasks. We face …

Abstract In the decade (2001–2011) that has passed since Semantic Wikis were first
proposed, systems have been conceived, developed and used for various purposes. This …

Identifying and interpreting user intent are fundamental to semantic search. In this paper, we
investigate the association of intent with individual words of a search query. We propose that …

Mathematics is becoming increasingly collaborative, but software does not sufficiently
support that: Social Web applications do not currently make mathematical knowledge …

Wikis allow users to collaboratively create and maintain content. Semantic wikis, which
provide the additional means to annotate the content semantically and thereby allow to …