157 citations · 380 across the 20 of their papers we have counts for
27 papers
Indexing Techniques for Graph Reachability Queries
Chao Zhang, Angela Bonifati, M. Tamer Özsu
We survey graph reachability indexing techniques for efficient processing of graph reachability queries in two types of popular graph models: plain graphs and edge-labeled graphs.…
Large Language Models and Knowledge Graphs: Opportunities and Challenges
Jeff Z. Pan, Simon Razniewski, Jan-Christoph Kalo +13
Large Language Models (LLMs) have taken Knowledge Representation -- and the world -- by storm. This inflection point marks a shift from explicit knowledge representation to a renew…
From Large Language Models to Databases and Back: A discussion on research and education
Sihem Amer-Yahia, Angela Bonifati, Lei Chen +4
This discussion was conducted at a recent panel at the 28th International Conference on Database Systems for Advanced Applications (DASFAA 2023), held April 17-20, 2023 in Tianjin,…
PG-Schema: Schemas for Property Graphs
Renzo Angles, Angela Bonifati, Stefania Dumbrava +18
Property graphs have reached a high level of maturity, witnessed by multiple robust graph database systems as well as the ongoing ISO standardization effort aiming at creating a ne…
A Reachability Index for Recursive Label-Concatenated Graph Queries
Chao Zhang, Angela Bonifati, Hugo Kapp +2
Reachability queries checking the existence of a path from a source node to a target node are fundamental operators for querying and processing graph data. Current approaches for i…
Provenance-aware Discovery of Functional Dependencies on Integrated Views
Ugo Comignani, Laure Berti-Équille, Noël Novelli +1
The automatic discovery of functional dependencies(FDs) has been widely studied as one of the hardest problems in data profiling. Existing approaches have focused on making the FD…