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Combining RDF and SPARQL with CP-theories to reason about preferences in a Linked Data setting

Vito Walter Anelli, Renato De Leone, Tommaso Di Noia, Thomas Lukasiewicz, Jessica Rosati, Axel Polleres
2018 Semantic Web Journal  
In this paper, we show how to combine them with Semantic Web technologies in order to encode in a standard SPARQL 1.1 query the semantics of a set of CP statements representing user preferences by means  ...  The framework that we propose allows a standard SPARQL client to query Linked Data datasets, and to order the results of such queries relative to a set of user preferences.  ...  Acknowledgments The authors wish to thank Francesco Paolo Albano for his unvaluable help in the implementation of the full framework and for his continuous support in its maintenance and further development  ... 
doi:10.3233/sw-180339 fatcat:myri77dzrfg45g2hgldcobkocq

Preference Queries with Ceteris Paribus Semantics for Linked Data [chapter]

Jessica Rosati, Tommaso Di Noia, Thomas Lukasiewicz, Renato De Leone, Andrea Maurino
2015 Lecture Notes in Computer Science  
In this paper, we show how to combine them with Semantic Web technologies in order to encode in a standard SPARQL 1.1 query the semantics of a set of CP statements representing user preferences by means  ...  The framework that we propose allows a standard SPARQL client to query Linked Data datasets, and to order the results of such queries relative to a set of user preferences.  ...  Section 4 proposes an RDF vocabulary to represent the CP-theory with the preferential statements of a user and then embeds the RDF version of the CP-theory into a SPARQL query able to retrieve a ranked  ... 
doi:10.1007/978-3-319-26148-5_28 fatcat:sw44lct5abge3hkiuwqhophif4

An Ontological Framework to Facilitate Early Detection of 'Radicalization' (OFEDR)—A Three World Perspective

Linda Wendelberg
2021 Journal of Imaging  
This paper presents an ontology that involves using information from various sources from different disciplines and combining it in order to predict whether a given person is in a radicalization process  ...  It is reasoned that an ontology exists as a world three object in the real world.  ...  Thanks to Ogerta Elezaj for the advice of using the Protégé software. Conflicts of Interest: The author report no conflict of interest.  ... 
doi:10.3390/jimaging7030060 pmid:34460716 pmcid:PMC8321290 fatcat:e7zvhlwinjfgtah3wa4de4ib6y

Efficient Query Processing in RDF Databases [chapter]

Andrey Gubichev, Thomas Neumann
2014 Emerging Directions in Database Systems and Applications  
Since the high-performance RDF systems are often implemented as triple stores (i.e., they represent RDF data as a single table with three attributes, at least conceptually), the query optimization strategies  ...  Furthermore, we present a novel RDF statistical synopsis that accurately estimates cardinalities in large SPARQL queries.  ...  The common way to store linked data -employed by the triple stores -is to conceptually view RDF data as a single table with three columns that correspond to Subject, Predicate, Object.  ... 
doi:10.1201/b16859-8 fatcat:xu6mdl3uvnhmzcvzdbap2i2eiq

SkyPackage: From Finding Items to Finding a Skyline of Packages on the Semantic Web [chapter]

Matthew Sessoms, Kemafor Anyanwu
2013 Lecture Notes in Computer Science  
We formalize the problem and discuss our implementation strategy for a loose integration with an open source RDF system, and evaluate the algorithm using synthetic and real world datasets.  ...  in a package and total cost.  ...  ACKNOWLEDGEMENTS First and foremost, I want to thank God for making all things possible. I want to thank my advisor, Dr. Kemafor Anyanwu, for her advice, efforts, and patience in guiding my research.  ... 
doi:10.1007/978-3-642-37996-3_4 fatcat:47zpjtq43rfbvijshgdwe2bale

D3.1 First version of ontologies and semantic repository

Georgios Meditskos (CERTH), Zoe Vasileiou (CERTH),Panagiotis Mhtzias (CERTH), Anastasios Karakostas (CERTH), Stefanos Vrochidis (CERTH), Jesús Gorroñogoitia (ATOS
2020 Zenodo  
In addition,it describes the first version of the Semantic Reasoner module that populates the SODALITE Knowledge Base (KB) with the resource models and Abstract Application Deployment Models (AADMs) composed  ...  (abstraction layer) and the representation and mapping of cloud applications and infrastructures to ontological entities.  ...  Eclipse RDF4J Eclipse RDF4J is a powerful Java framework for processing and handling RDF data. This includes 37 creating, parsing, scalable storage, reasoning and querying with RDF and Linked Data.  ... 
doi:10.5281/zenodo.4280700 fatcat:4u7gtlwe5bhrzftb5ksaf4pko4

When Things Matter: A Data-Centric View of the Internet of Things [article]

Yongrui Qin, Quan Z. Sheng, Nickolas J.G. Falkner, Schahram Dustdar, Hua Wang, Athanasios V. Vasilakos
2014 arXiv   pre-print
objects to the Internet and facilitating machine-to-human and machine-to-machine communication with the physical world.  ...  A fundamental challenge centers around managing IoT data, typically produced in dynamic and volatile environments, which is not only extremely large in scale and volume, but also noisy, and continuous.  ...  Basically, Linked Data refers to a set of best practices to be followed in order to publish and link data on the Web, using the following basic principles 5 : -Use URIs as names for things.  ... 
arXiv:1407.2704v2 fatcat:crbago2kqrbsbaoaig63yfvbua

When things matter: A survey on data-centric internet of things

Yongrui Qin, Quan Z. Sheng, Nickolas J.G. Falkner, Schahram Dustdar, Hua Wang, Athanasios V. Vasilakos
2016 Journal of Network and Computer Applications  
objects to the Internet and facilitating machineto-human and machine-to-machine communication with the physical world.  ...  A fundamental challenge centers around managing IoT data, typically produced in dynamic and volatile environments, which is not only extremely large in scale and volume, but also noisy, and continuous.  ...  We express our gratitude to the anonymous reviewers for their comments and suggestions which have greatly helped us to improve this work.  ... 
doi:10.1016/j.jnca.2015.12.016 fatcat:4roub2ifdjgide4kxhmqqrk44i

A verified algebra for read–write Linked Data

Ross Horne, Vladimiro Sassone
2014 Science of Computer Programming  
A high level language is defined that concisely captures query and update languages for Linked Data. The language is provided with a concise operational semantics.  ...  The aim of this work is to verify an algebra for high level languages for reading and writing Linked Data.  ...  An Abstract Syntax for Read-Write Linked Data The concrete syntax for both RDF and SPARQL Query are specified in W3C recommendations [24, 34] .  ... 
doi:10.1016/j.scico.2013.07.005 fatcat:3e3g3l7hfzd5bifzpfhsmln5du

Ontology-Based Production Simulation with OntologySim

Marvin Carl May, Lars Kiefer, Andreas Kuhnle, Gisela Lanza
2022 Applied Sciences  
Imagine the possibility to save a simulation at any time, modify or analyze it, and restart again with exactly the same state.  ...  The OntologySim can help solving this challenge by providing the ability to generate truly cyber physical systems, both interlocked with reality and providing a simulation framework.  ...  Based on a grounded theory literature review [35] , a large set of papers dealing with both simulation and ontology or both digital twin and ontology in the domain of production research were identified  ... 
doi:10.3390/app12031608 fatcat:tpyre464zjfpddrhp6chiv6e6y

Top-k Web Service Compositions Using Fuzzy Dominance Relationship

Karim Benouaret, Djamal Benslimane, Allel Hadjali, Mahmoud Barhamgi
2011 2011 IEEE International Conference on Services Computing  
In this paper, we present an approach to automatically compose Data Web services while taking into account the user preferences. User preferences are modeled thanks to fuzzy sets.  ...  Data Web service composition is a powerful means to answer users' complex queries. User preferences are a key aspect that must be taken into account in the composition scheme.  ...  This approach can reason about a user's incomplete and constrained preference. In [7] , a method to rank semantic web services is proposed.  ... 
doi:10.1109/scc.2011.86 dblp:conf/IEEEscc/BenouaretBHB11 fatcat:75p5tk4r2nei7cbxvflrh5aeqm

Web Service Compositions with Fuzzy Preferences

Karim Benouaret, Djamal Benslimane, Allel Hadjali, Mahmoud Barhamgi, Zakaria Maamar, Quan Z. Sheng
2014 ACM Transactions on Internet Technology  
In this paper, we present a novel approach to compute the top-k data service compositions based on user preferences.  ...  In our approach, we model user preferences using fuzzy sets and incorporate them into the composition query.  ...  In [Wang et al. 2008] , the authors use a qualitative graphical representation of preference, CP-nets, to deal with services selection in terms of user preferences.  ... 
doi:10.1145/2576231 fatcat:zkbjwd5mtzeqjizybskqpko7ne

XACML Policy Evaluation with Dynamic Context Handling

Nariman Ammar, Zaki Malik, Elisa Bertino, Abdelmounaam Rezgui
2015 IEEE Transactions on Knowledge and Data Engineering  
We provide an XACML-based implementation of a dynamic privacy policy management framework and an evaluation of the applicability of our system in comparison to some of the existing approaches.  ...  In this regard, a number of works have provided enhancements to the performance of XACML policy enforcement point (PEP) component, but very few have focused on enhancing the accuracy of that component.  ...  We combine, in a novel way, existing techniques from the fields of probability theory and information theory.  ... 
doi:10.1109/tkde.2015.2415473 fatcat:fdpvgkg7ajbtrbfywq3ph7dwze

OntoTouTra: Tourist Traceability Ontology Based on Big Data Analytics

Juan Francisco Mendoza-Moreno, Luz Santamaria-Granados, Anabel Fraga Vázquez, Gustavo Ramirez-Gonzalez
2021 Applied Sciences  
In this regard, unifying tourism terminology in a traceability system is a challenge because we need a central repository that promotes standards for tourists and suppliers in forming a formal body of  ...  A knowledge base provides us with information on the preparation, planning, and implementation or operation stages.  ...  Acknowledgments: This research was financially supported by the Ministry of Science, Technology, and Innovation of Colombia (733-2015) and by the Universidad Santo Tomás Seccional Tunja.  ... 
doi:10.3390/app112211061 fatcat:gzabwc344zfolhoxnoaf7ygxae

Quality of Service-Aware Complex Event Service Composition in Real-time Linked Dataspaces [chapter]

Feng Gao, Edward Curry
2019 Real-time Linked Dataspaces  
CP 1 is optimised for latency, with the weight of latency set to 1.0 and other QoS weights set to 0.1; while CP 2 is optimised for network consumption, with the weight of network consumption set to 1.0  ...  The RLD combines the pay-as-you-go paradigm of dataspaces with linked data, knowledge graphs, and realtime stream and event processing capabilities to support a large-scale distributed heterogeneous collection  ... 
doi:10.1007/978-3-030-29665-0_11 fatcat:tv333ygpjnaj5b76tdapxflacq
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