Efficient querying of multidimensional RDF data with aggregates: Comparing NoSQL, RDF and relational data stores

Ravat, Franck; Song, Jiefu; Teste, Olivier; Santos, Cássia Trojahn dos

doi:10.1016/j.ijinfomgt.2020.102089

Cited by 18 publications

(4 citation statements)

References 47 publications

(58 reference statements)

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“…Most developer agreed that the database system are generally much more matured and have more features than typical RDF/OWL. The transactions are much cruder, and the cost per unit information stored in RDF/OWL is noticeably higher than database (Ravat, Song, Teste, & Trojahn, 2020). Therefore, it is more efficient to use the database instead of RDF/OWL to get the benefit of flexibility and the power of the database system, without neglecting the modeling of knowledge using ontology.…”

Section: Fig 11 -Measurement For Searching Resultsmentioning

confidence: 99%

Semantic Approach for Al-Quran Knowledge Representation in Islamic Knowledge Management Framework

Ta’a

Arif

Bakar

et al. 2021

JQSR

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Using ontology data model to accurately represent Al-Quran knowledge using its inherent structure of Division (Juz), Chapter (Surah), and Verse (Ayah) should be done within the framework of the Islamic Knowledge Management (IKM). Data modelling neglecting the IKM framework would result in inaccuracy and irrelevant result in knowledge processing activities involving the Al-Quran. Many of the current approaches utilizing conventional knowledge management methods such as taxonomy, hierarchy, or tree structure are limited in the sense that they only define the concepts of knowledge without relating it to a theme that defined from corpus of Islamic knowledge. In the case of Al-Quran, a classification of themes from background knowledge are important to provide a structural explanation of the knowledge and to ensure that the results obtained from a searching function of the corpus of the knowledge will result in an accurate and appropriate meaning intended by the Islamic knowledge. The aims of this paper is to demonstrate the construction of Al-Quran ontology and elaborate the searching method for representing and retrieving the relevance and accurate verses toward the theme of Al-Quran by using the semantic-based approach. The specification of Al-Quran ontology of which the prototype application was built on has been validated by experts. The evaluation test of the Al-Quran ontology application furthermore shows high precision result from searching functions done. With a good level of accuracy achieved from the test, it is hopeful that Al-Quran ontology application will provide a new experience of Al-Quran themes searching and browsing within the IKM framework for the Al-Quran readers. A capability to efficiently and accurately performing search of Al-Quran will certainly improve their understanding of Al-Quran contents.

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Section: Fig 11 -Measurement For Searching Resultsmentioning

confidence: 99%

Semantic Approach for Al-Quran Knowledge Representation in Islamic Knowledge Management Framework

Ta’a

Arif

Bakar

et al. 2021

JQSR

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“…The objective is to propose guidelines for the implementation choice according to the analytical needs. Finally, we identified a possible extension of our solution in other domains, such as the Semantic Web domain [8,21]. We will verify its implementation in new environments and make a performance comparison with classic graph database systems such as the ones used in our paper.…”

Section: Discussionmentioning

confidence: 99%

Querying Temporal Property Graphs

Ravat

Song

Vallès-Parlangeau

2022

Advanced Information Systems Engineering

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Nowadays, in many real-world problems, objects are characterized by properties and interactions that evolve over time. Several temporal property graph models associated with query languages are proposed in the literature to manage the temporal and interconnectivity features of such problems. However, they are not widely used due to the lack of a conceptual view. To overcome this drawback, we propose useroriented operators to analyze temporal evolution of property graphs. We also define translation rules between our operators and existing property graph query languages to implement them directly. To illustrate the feasibility of our solution, we present two case studies based on a Neo4j and an OrientDB implementations of our operators and show some real-world querying examples.

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“…In our future works, we will extend our experiments to other types of data stores such as relational data stores since they can outperform both NoSQL graph stores and RDF triples stores [21]. This will require to extend the translation rules between the conceptual and logical level to be applicable to relational data stores.…”

Section: Discussionmentioning

confidence: 99%

Towards an Efficient Approach to Manage Graph Data Evolution: Conceptual Modelling and Experimental Assessments

Ravat

Song

Vallès-Parlangeau

2021

Research Challenges in Information Science

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This paper describes a new temporal graph modelling solution to organize and memorize changes in a business application. To do so, we enrich the basic graph by adding the concepts of states and instances. Our model has first the advantage of representing a complete temporal evolution of the graph, at the level of: (i) the graph structure, (ii) the attribute set of entities/relationships and (iii) the attributes' value of entities/relationships. Then, it has the advantage of memorizing in an optimal manner evolution traces of the graph and retrieving easily temporal information about a graph component. To validate the feasibility of our proposal, we implement our proposal in Neo4j, a data store based on property graph model. We then compare its performance in terms of storage and querying time to the classical modelling approach of temporal graph. Our results show that our model outperforms the classical approach by reducing disk usage by 12 times and saving up to 99% queries' runtime.

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Efficient querying of multidimensional RDF data with aggregates: Comparing NoSQL, RDF and relational data stores

Cited by 18 publications

References 47 publications

Semantic Approach for Al-Quran Knowledge Representation in Islamic Knowledge Management Framework

Semantic Approach for Al-Quran Knowledge Representation in Islamic Knowledge Management Framework

Querying Temporal Property Graphs

Towards an Efficient Approach to Manage Graph Data Evolution: Conceptual Modelling and Experimental Assessments

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