Results 21 to 30 of about 3,576,657 (341)

Incremental View Maintenance for Deductive Graph Databases Using Generalized Discrimination Networks [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2016
Nowadays, graph databases are employed when relationships between entities are in the scope of database queries to avoid performance-critical join operations of relational databases.
Thomas Beyhl, Holger Giese
doaj   +1 more source

Neural Graph Databases

open access: yesCoRR, 2022
Graph databases (GDBs) enable processing and analysis of unstructured, complex, rich, and usually vast graph datasets. Despite the large significance of GDBs in both academia and industry, little effort has been made into integrating them with the predictive power of graph neural networks (GNNs).
Maciej Besta   +7 more
openaire   +3 more sources

Extended Property-level k-vertex Cardinality Constraints Model for Graph Databases

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
Graph databases are nowadays considered the most appropriate solution for highly connected domains. Nevertheless, the lack of a fixed schema perplexes the implementation of business rules and inhibits the usage of graph database technology in practical ...
Martina Šestak, Muhamed Turkanović
doaj   +1 more source

Semantic acyclicity on graph databases [PDF]

open access: yesProceedings of the 32nd ACM SIGMOD-SIGACT-SIGAI symposium on Principles of database systems, 2013
Summary: It is known that unions of acyclic conjunctive queries (CQs) can be evaluated in linear time, as opposed to arbitrary CQs, for which the evaluation problem is NP-complete. It follows from techniques in the area of constraint-satisfaction problems that semantically acyclic unions of CQs -- i.e., unions of CQs that are equivalent to a union of ...
Pablo Barceló Baeza   +2 more
openaire   +8 more sources

The Application of Graph in BIM/GIS Integration

open access: yesBuildings, 2022
Information exchange between building information modelling (BIM) and geographic information system (GIS) is problematic, especially in terms of semantic information.
Junxiang Zhu   +5 more
doaj   +1 more source

Managing 3D GIS Data for Indoor Environment Using Property Graph Database

open access: yesIEEE Access, 2023
With the diversification of three-dimensional (3D) urban space data sources and data collection methods, the Open Geospatial Consortium published 3D spatial data standards in Geography Markup Language (GML).
Hanme Jang, Kiyun Yu, Seula Park
doaj   +1 more source

i-DATAQUEST : a Proposal for a Manufacturing Data Query System Based on a Graph [PDF]

open access: yes, 2020
During the manufacturing product life cycle, an increasing volume of data is generated and stored in distributed resources. These data are heterogeneous, explicitly and implicitly linked and they could be structured and unstructured.
Antoine Mallet   +9 more
core   +1 more source

AN EMPIRICAL COMPARISON OF NEO4J AND TIGERGRAPH DATABASES FOR NETWORK CENTRALITY

open access: yesScience Journal of University of Zakho, 2023
Graph databases have recently gained a lot of attention in areas where the relationships between data and the data itself are equally important, like the semantic web, social networks, and biological networks.
Bahzad Chicho   +1 more
doaj   +1 more source

Integration Strategy and Tool between Formal Ontology and Graph Database Technology

open access: yesElectronics, 2021
Ontologies, and especially formal ones, have traditionally been investigated as a means to formalize an application domain so as to carry out automated reasoning on it. The union of the terminological part of an ontology and the corresponding assertional
S. Ferilli
semanticscholar   +1 more source

A Graph Rewriting Visual Language for Database Programming [PDF]

open access: yes, 1997
Textual database programming languages are computationally complete, but have the disadvantage of giving the user a non-intuitive view of the database information that is being manipulated.
Rodgers, Peter   +3 more
core   +1 more source

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