Results 21 to 30 of about 5,338,929 (295)

A Pattern Mining Method for Teaching Practices

open access: yesFuture Internet, 2021
When integrating digital technology into teaching, many teachers experience similar challenges. Nevertheless, sharing experiences is difficult as it is usually not possible to transfer teaching scenarios directly from one subject to another because ...
Bernhard Standl   +1 more
doaj   +1 more source

A logical approach to graph databases

open access: yesJournal of Logical and Algebraic Methods in Programming, 2022
Peer ...
Pino Blanco, Elvira   +3 more
openaire   +5 more sources

Pragmatic Graph Rewriting Modifications [PDF]

open access: yes, 1999
We present new pragmatic constructs for easing programming in visual graph rewriting programming languages. The first is a modification to the rewriting process for nodes the host graph, where nodes specified as 'Once Only' in the LHS of a rewrite match ...
Rodgers, Peter   +3 more
core   +1 more source

Improving Query Response Time for Graph Data Using Materialization

open access: yesJISR on Computing, 2015
Graphs are used in many disciplines, from communication networks, biological, social networks including maths and other fields of science. This is the latest and most important field of computer science today.
Abdul Waheed, Saif-ur-Rahman
doaj   +1 more source

Constructing Crop Portraits Based on Graph Databases Is Essential to Agricultural Data Mining

open access: yesInformation, 2021
Neo4j is a graph database that can use not only data, but also data relationships. Crop portraits, a kind of property graph, model the crop entity in the real world based on data to realize the networked management of crop knowledge.
Yue-Xin Shi   +4 more
doaj   +1 more source

Processes and events in the centre: a dynamic data model for representing spatial change

open access: yesInternational Journal of Digital Earth, 2022
Traditional geographic information system models for map representation use superposition of layers to model physical reality, neglecting the integrity of the environment and limiting the ability to express interactions between features in complex ...
Yufeng He   +4 more
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

Which Category Is Better: Benchmarking Relational and Graph Database Management Systems

open access: yesData Science and Engineering, 2019
Over decades, relational database management systems (RDBMSs) have been the first choice to manage data. Recently, due to the variety properties of big data, graph database management systems (GDBMSs) have emerged as an important complement to RDBMSs. As
Yijian Cheng   +4 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

GOMS: Large-scale ontology management system using graph databases

open access: yesETRI Journal, 2022
Large-scale ontology management is one of the main issues when using ontology data practically. Although many approaches have been proposed in relational database management systems (RDBMSs) or object-oriented DBMSs (OODBMSs) to develop large-scale ...
Chun-Hee Lee, Dong-oh Kang
doaj   +1 more source

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