usecase-queries - JR - Druid

usecase-queries

Public
By JR

In this example, we have a closer look at the context emc:emc_id_e_3_d_3_o_3.

As the query below shows, the context emc:emc_id_e_3_d_3_o_3 contains :

  • 32 properties in the delta context
  • 7 properties in the epsilon context
  • 4 properties in the omega context

In the query below, we can have a closer look at the 7 properties in the epsilon context:

Now we have a look at the pairs that are identical in this context.

Given that there are no activated reasoners, the query below returns the pairs in which the context emc:emc_id_e_3_d_3_o_3 represent their most specific context. The query result shows that there is only one pair of entities that are linked in this context.

In this final query, we have a look at the pairs that are identical in this context with an activated RDFS reasoner.

The query below, which is the same as the one above, exploits the order relation between the contexts using the rdfs:subPropertyOf relation. It returns all pairs that are identical in the context emc:emc_id_e_3_d_3_o_3 or any context that is more specific than it.

The query result shows that there are 11 pairs of entities that are linked in this context.