157 citations · 161 across the 4 of their papers we have counts for
5 papers
Reasoning on Property Graphs with Graph Generating Dependencies
Larissa C. Shimomura, Nikolay Yakovets, George Fletcher
Graph Generating Dependencies (GGDs) informally express constraints between two (possibly different) graph patterns which enforce relationships on both graph's data (via property v…
The Future is Big Graphs! A Community View on Graph Processing Systems
Sherif Sakr, Angela Bonifati, Hannes Voigt +38
Graphs are by nature unifying abstractions that can leverage interconnectedness to represent, explore, predict, and explain real- and digital-world phenomena. Although real users a…
Answer Graph: Factorization Matters in Large Graphs
Zahid Abul-Basher, Nikolay Yakovets, Parke Godfrey +2
Our answer-graph method to evaluate SPARQL conjunctive queries (CQs) finds a factorized answer set first, an answer graph, and then finds the embedding tuples from this. This appro…
GGDs: Graph Generating Dependencies
Larissa C. Shimomura, George Fletcher, Nikolay Yakovets
We propose Graph Generating Dependencies (GGDs), a new class of dependencies for property graphs. Extending the expressivity of state of the art constraint languages, GGDs can expr…
Towards Query Optimization for SPARQL Property Paths
Nikolay Yakovets, Parke Godfrey, Jarek Gryz
The extension of SPARQL in version 1.1 with property paths offers a type of regular path query for RDF graph databases. Such queries are difficult to optimize and evaluate efficien…