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Some problems on graph databases

open access: yesТруды Института системного программирования РАН, 2018
Graph databases appear to be the most popular and relevant among non-relational databases. Its popularity is caused by its relatively easy implementation in the problems in which data have big numbers of relations such as protein-protein interaction and ...
R. I. Guralnik
doaj   +1 more source

Performance introspection of graph databases [PDF]

open access: yesProceedings of the 6th International Systems and Storage Conference on - SYSTOR '13, 2013
The explosion of graph data in social and biological networks, recommendation systems, provenance databases, etc. makes graph storage and processing of paramount importance. We present a performance introspection framework for graph databases, PIG, which provides both a toolset and methodology for understanding graph database performance.
Macko, Peter   +2 more
openaire   +3 more sources

Two for one: Querying property graph databases using SPARQL via gremlinator

open access: yes, 2022
Art.12In the past decade Knowledge graphs have become very popular and frequently rely on the Resource Description Framework (RDF) or Property Graphs (PG) as their data models.
Thakkar, Harsh   +3 more
core   +1 more source

Data aggregation and indexing support from multiple sources using graph model in medical expert system databases

open access: yesInformatika, 2020
One of the key problems in developing and integrating expert systems for medical research is the problem of data aggregation. Most of the times, general information about the patient and data about undergone research procedures exist as part of several ...
A. V. Kurachkin, V. S. Sadau
doaj   +1 more source

Outlier Recognition via Linguistic Aggregation of Graph Databases

open access: yesApplied Sciences, 2021
Datasets frequently contain uncertain data that, if not interpreted with care, may affect information analysis negatively. Such rare, strange, or imperfect data, here called “outliers” or “exceptions” can be ignored in further processing or, on the other
Adam Niewiadomski   +2 more
doaj   +1 more source

Updating graph databases with Cypher [PDF]

open access: yesProceedings of the VLDB Endowment, 2019
The paper describes the present and the future of graph updates in Cypher, the language of the Neo4j property graph database and several other products. Update features include those with clear analogs in relational databases, as well as those that do not correspond to any relational operators.
Alastair Green   +8 more
openaire   +3 more sources

Towards a Semantics-Based Recommendation System for Cultural Heritage Collections

open access: yesApplied Sciences, 2023
While the use of semantic technologies is now commonplace in the cultural heritage sector and several semantically annotated cultural heritage datasets are publicly available, there are few examples of cultural portals that exploit these datasets and ...
Jiayu Li, Antonis Bikakis
doaj   +1 more source

Suitability of Graph Database Technology for the Analysis of Spatio-Temporal Data

open access: yesFuture Internet, 2020
Every day large quantities of spatio-temporal data are captured, whether by Web-based companies for social data mining or by other industries for a variety of applications ranging from disaster relief to marine data analysis.
Sedick Baker Effendi   +2 more
doaj   +1 more source

An approach for system analysis with model-based systems engineering and graph data engineering

open access: yesData-Centric Engineering, 2022
Model-based systems engineering (MBSE) aims at creating a model of a system under development, covering the complete system with a level of detail that allows to define and understand its behavior and enables to define any interface and work package ...
Florian Schummer, Maximillian Hyba
doaj   +1 more source

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

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