Now showing items 21-25 of 25
OBDA Beyond Relational DBs: A Study for MongoDB
(CEUR Workshop Proceedings, 2016)
The database landscape has been significantly diversified during the last decade, resulting in the emergence of a variety of non-relational (also called NoSQL) databases, e.g., XML and JSON-document databases, key-value ...
Beyond OWL 2 QL in OBDA: Rewritings and approximations
Ontology-based data access (OBDA) is a novel paradigm facilitating access to relational data, realized by linking data sources to an ontology by means of declarative mappings. DL-LiteR, which is the logic underpinning the ...
A Semantic Approach to Polystores
(IEEE Computer Society, 2016)
In the database community Polystores is an emerging and promising approach for data federation that aims at designing a unified querying layer over multiple data models. In the Semantic Web community a similar in spirit ...
Managing Change in Graph-structured Data Using Description Logics
Graph-structured data, which are receiving increased attention in the database community, are tightly connected to Description Logics (DLs), given that these two formalims share the underlying interpretation structures. ...
Research Directions for Principles of Data Management (Abridged)
In April 2016, a community of researchers working in the area of Principles of Data Management (PDM) joined in a workshop at the Dagstuhl Castle in Germany. The workshop was organized jointly by the Executive Committee of ...