Abstract: A knowledge graph (KG) manages large-scale and real-world facts as a big graph in a schema-flexible manner. Aggregate query is a fundamental query over KGs, e.g., “what is the average price ...

This is a project implenting Random Sampling for Group-By Queries (1) in Flink Platform. The goal of this project is to sample streaming tuples, answering effectively Single Aggregate along with a ...

Data uncertainty arises in many situations. A common approach to query processing over uncertain data is to sample many “possible worlds” from the uncertain data, and run queries against the possible ...

Aggregate Industries has opened a new sampling lab at its Express Asphalt plant in Doncaster amid ongoing plans to extend supply of its SuperColour® range. Located in the Kirk Sandall Industrial ...