Abstract The Linked Data paradigm builds upon the backbone of distributed knowledge
bases connected by typed links. The mere volume of current knowledge bases as well as …

Historical maps provide rich information for researchers in many areas, including the social
and natural sciences. These maps contain detailed documentation of a wide variety of …

Point of Interest (POI) data constitute the cornerstone of any application, service or product
even remotely related to our physical surroundings. From navigation applications to social …

The SPARQL standard provides operators to retrieve exact matches on data, such as graph
patterns, filters and grou**. This work proposes and evaluates two new algebraic …

We extend the concept of worst-case optimal equijoins in graph databases to the case
where some nodes are required to be within the k-nearest neighbors (kNN) of others under …

We propose techniques that support the efficient computation of multidimensional similarity
joins in an RDF/SPARQL setting, where similarity in an RDF graph is measured with respect …

Link discovery is central to the integration and use of data across RDF knowledge bases.
Geospatial information is increasingly represented according to the Linked Data principles …

The growth of Web of Data led to the development of dataset recommendation
methodologies, which automate the discovery of datasets that may contain same or related …

Historical maps provide a rich source of data for social science researchers since they
contain detailed documentation of a wide variety of factors, such as land-use changes …

Preserving historical city architectures and making them (publicly) available has emerged as
an important field of the cultural heritage and digital humanities research domain. In this …