2 papers
cs.DB2026
Semi-interval Comparison Constraints in Query Containment and Their Impact on Certain Answer Computation
Foto N. Afrati, Matthew Damigos
We consider conjunctive queries with arithmetic comparisons (CQAC) and investigate the computational complexity of the problem: Given two CQAC queries, and , is contai…
cs.DB2025
Evaluating Continuous Basic Graph Patterns over Dynamic Link Data Graphs
Manolis Gergatsoulis, Matthew Damigos
In this paper, we investigate the problem of evaluating Basic Graph Patterns (BGP, for short, a subclass of SPARQL queries) over dynamic Linked Data graphs; i.e., Linked Data graph…