4 papers
The KG-ER Conceptual Schema Language
Enrico Franconi, Benoît Groz, Jan Hidders +4
We propose KG-ER, a conceptual schema language for knowledge graphs that describes the structure of knowledge graphs independently of their representation (relational databases, pr…
On the generic information capacity of relational schemas with a single binary relation
Benoît Groz, Jan Hidders, Nina Pardal +2
We consider database schemas consisting of a single binary relation, with key constraints and inclusion dependencies. Over this space of 20 schemas, we completely characterize when…
Cutwidth Bounds via Vertex Partitions
Antoine Amarilli, Benoît Groz
We study the cutwidth measure on graphs and ways to bound the cutwidth of a graph by partitioning its vertices. We consider bounds expressed as a function of two quantities: on the…
Edge-Minimum Walk of Modular Length in Polynomial Time
Antoine Amarilli, Benoît Groz, Nicole Wein
We study the problem of finding, in a directed graph, an st-walk of length r mod q which is edge-minimum, i.e., uses the smallest number of distinct edges. Despite the vast literat…