Web search logs contain extremely sensitive data, as evidenced by the recent AOL incident. However, storing and analyzing search logs can be very useful for many purposes (i.e. in...
We present some architectural and technological insights on SAP’s HANA database and derive research challenges for future enterprise application development. The HANA database m...
Joos-Hendrik Boese, Cafer Tosun, Christian Mathis,...
With the popularization of GPS-enabled devices there is an increasing interest for location-based queries. In this context, one interesting problem is processing top-k spatial key...
Cloud-based data management platforms often employ multitenant databases, where service providers achieve economies of scale by consolidating multiple tenants on shared servers. I...
Sean Kenneth Barker, Yun Chi, Hyun Jin Moon, Hakan...
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...