9 citations · 12 across the 4 of their papers we have counts for
6 papers · 1 filter
Static Analysis of Graph Database Transformations
Iovka Boneva, Benoit Groz, Jan Hidders +2
We investigate graph transformations, defined using Datalog-like rules based on acyclic conjunctive two-way regular path queries (acyclic C2RPQs), and we study two fundamental stat…
Inference of Shape Expression Schemas Typed RDF Graphs
Benoît Groz, Aurélien Lemay, Sławek Staworko +1
We consider the problem of constructing a Shape Expression Schema (ShEx) that describes the structure of a given input RDF graph. We employ the framework of grammatical inference,…
Consistency and Certain Answers in Relational to RDF Data Exchange with Shape Constraints
Iovka Boneva, Jose Lozano, Sławek Staworko
We investigate the data exchange from relational databases to RDF graphs inspired by R2RML with the addition of target shape schemas. We study the problems of consistency i.e., che…
Relational to RDF Data Exchange in Presence of a Shape Expression Schema
Iovka Boneva, Jose Lozano, Sławek Staworko
We study the relational to RDF data exchange problem, where the tar- get constraints are specified using Shape Expression schema (ShEx). We investi- gate two fundamental problems:…
Consistent Query Answers in the Presence of Universal Constraints
Slawomir Staworko, Jan Chomicki
The framework of consistent query answers and repairs has been introduced to alleviate the impact of inconsistent data on the answers to a query. A repair is a minimally different…
Priority-Based Conflict Resolution in Inconsistent Relational Databases
Slawomir Staworko, Jan Chomicki
We study here the impact of priorities on conflict resolution in inconsistent relational databases. We extend the framework of repairs and consistent query answers. We propose a se…