Symmetric Hash Join

Replicating data fragments in Linked Data improves data availability and performances of federated query engines. Existing… Expand

In this paper we explore effects of threading regarding inter and intra operator parallelism in a distributed database system. We… Expand

In dynamic, on-the-fly relational data integration settings, such as data mashups, there is a need to reconcile values… Expand

Progressive join algorithms are join algorithms that produce results incrementally as input data is available. Because they are… Expand

Data streaming systems face the possibility of having to shed load in the case of CPU or memory resource limitations. We study… Expand

This paper addresses the problem of supporting ranked join in peer-to-peer (P2P) networks. Ranked queries produce results that… Expand

We explore join optimizations in the presence of both time-based constraints (sliding windows) and value-based constraints… Expand

Join algorithms must be re-designed when processing stream data instead of persistently stored data. Data streams are potentially… Expand

Interest in incremental and adaptive query processing has led to the investigation of equijoin evaluation algorithms that are non… Expand

Spatial applications frequently need to join two data sets based on some spatial relationship between objects in the two data… Expand