Papers › Column-Oriented Datalog Materialization for Large Knowledge Graphs (Extended Technical Report)
Column-Oriented Datalog Materialization for Large Knowledge Graphs (Extended Technical Report)
Jacopo Urbani, Ceriel Jacobs, Markus Krötzsch
The evaluation of Datalog rules over large Knowledge Graphs (KGs) is essential for many applications. In this paper, we present a new method of materializing Datalog inferences, which combines a column-based memory layout with novel optimization methods that avoid redundant inferences at runtime. The pro-active caching of certain subqueries further increases efficiency. Our empirical evaluation shows that this approach can often match or even surpass the performance of state-of-the-art systems, especially under restricted resources.
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