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Controlled Query Evaluation over Lightweight Ontologies

Bernardo Cuenca Grau, Evgeny Kharlamov, Egor V. Kostylev, Dmitriy Zheleznyakov
2014 International Workshop on Description Logics  
We study confidentiality enforcement in ontologies under the Controlled Query Evaluation (CQE) framework.  ...  We study two natural classes of censors that can be realised using existing infrastructure for query answering and propose optimal CQE algorithms for the standardised profiles of the ontology language  ...  Controlled Query Evaluation (CQE) is a prominent formal framework for confidentiality enforcement.  ... 
dblp:conf/dlog/GrauKKZ14 fatcat:og6yr6r6prel7pgnyc4jeurfwm

Query Ranking in Information Integration [chapter]

Rodolfo Stecher, Stefania Costache, Claudia Niederée, Wolfgang Nejdl
2010 Lecture Notes in Computer Science  
higher degrees of controlled relaxation introduced, and present the performed evaluation.  ...  We have developed an integration approach which relies on partial mappings for query rewriting and combines them with a controlled way of relaxation.  ...  Our evaluations performed over real world datasets show the efficiency of our introduced ranking function.  ... 
doi:10.1007/978-3-642-13094-6_19 fatcat:c5ivnoaus5f7hgu7j63ohbwu7y

Controlled Query Evaluation in Description Logics Through Instance Indistinguishability (Extended Abstract)

Gianluca Cima, Domenico Lembo, Riccardo Rosati, Domenico Fabio Savo
2020 International Workshop on Description Logics  
Controlled query evaluation (CQE) is a declarative framework for privacypreserving query answering investigated in the literature on knowledge representation and database theory [16, 7, 3] .  ...  , has the same data complexity upper bound as evaluating queries over a database (i.e., AC 0 ).  ... 
dblp:conf/dlog/CimaLRS20 fatcat:k4molkbphfawla5hpnqnoqdxzm

oneM2M Architecture Based User Centric IoT Application Development

Soumya Kanti Datta, Amelie Gyrard, Christian Bonnet, Karima Boudaoud
2015 2015 3rd International Conference on Future Internet of Things and Cloud  
The performance of the mobile application is evaluated in terms of CPU load and power consumption. Finally overall contributions and future directions are summarized.  ...  The framework integrates a lightweight version of the Machineto-Machine Measurement framework and has been adapted for smart devices enabling them to reason on sensor data.  ...  The performance evaluation of the prototype mobile application demonstrates the lightweight implementation.  ... 
doi:10.1109/ficloud.2015.7 dblp:conf/ficloud/DattaGBB15 fatcat:h4ynsa7ttfeffkbpp5dbkibyoa

Integrating Ontology Storage and Ontology-based Applications Through Client-side Query and Transformations

Peter Mika
2002 Workshop on Evaluation of Ontology-based Tools  
This paper investigates the integration of ontology storage and ontology-based applications through the example of the EnerSearch case study conducted within the On-To-Knowledge research project.  ...  We look at the problem of integrating the Sesame storage and query facility with its client application and identify both functional and technical needs for a new software package for client-side query  ...  Despite its relative simplicity, evaluation times for this query ranged over a few dozen minutes even for an ontology with few hundred concepts.  ... 
dblp:conf/eon/Mika02 fatcat:c7djnd567jaofm4zkd27vqerky

Linked Data Access Goes Mobile: Context-Aware Authorization for Graph Stores

Luca Costabello, Serena Villata, Nicolas Delaforge, Fabien Gandon
2012 The Web Conference  
To encourage data providers to publish a maximum of data on the Web, we propose a mechanism to define lightweight access control policies for graph stores.  ...  The framework architecture is designed as a pluggable filter for generic SPARQL endpoints, and it has been evaluated on a test dataset.  ...  The model is grounded on the S4AC ontology (Figure 1 ). Our access control model is integrated with lightweight ontologies adopted in the Social Web and the Web of Data.  ... 
dblp:conf/www/CostabelloVDG12a fatcat:kjooagyre5ey5fhi4jbix75xli

Epistemic Integrity Constraints for Ontology-Based Data Management

Marco Console, Maurizio Lenzerini
Ontology-based data management (OBDM) is a powerful knowledge-oriented paradigm for managing data spread over multiple heterogeneous sources.  ...  In OBDM, the data sources of an information system are handled through the reconciled view provided by an ontology, i.e., the conceptualization of the underlying domain of interest expressed in some formal  ...  ∃ȳ.b B κ (x) ∧ h B κ (x,ȳ) is a first-order formula that can be evaluated directly over D. Protection.  ... 
doi:10.1609/aaai.v34i03.5667 fatcat:ij3qcf6gwva3fmt2gxdwz7evci

A Lightweight Approach for Knowledge Sharing in Distributed Software Teams [chapter]

Walid Maalej, Hans-Jörg Happel
2008 Lecture Notes in Computer Science  
We propose an ontology-based framework to capture, access and share developers' experiences in a decentralized, contextualized manner.  ...  In distributed teams, development infrastructures have to fill communication gaps with lightweight articulation and sharing facilities for evolving development knowledge.  ...  The basic underlying infrastructure for all semantic services of the proposed framework is an ontology management system, which stores, allows queries to, and performs inferencing over ontology-based metadata  ... 
doi:10.1007/978-3-540-89447-6_4 fatcat:fnej6okrcjbora73jvx2wjecsm

Organizing open archives via lightweight ontologies to facilitate the use of heterogeneous collections

J. Alfredo Sánchez, María Auxilio Medina, Oleg Starostenko, Antonio Benitez, Eduardo López Domínguez
2012 ASLIB Proceedings  
The paper aims to introduce OntOAIr, a semi-automatic method for constructing lightweight ontologies of documents in repositories such as those provided by the Open Archives Initiative (OAI).  ...  Design/methodology/approach -OntOAIr uses simplified document representations, a clustering algorithm, and ontological engineering techniques.  ...  In lightweight ontologies, there is not a strong distinction between terms and concepts. Terms make controlled vocabularies available for the classification of content and they are use-dependent.  ... 
doi:10.1108/00012531211196701 fatcat:tzc2aenvdzcuhay2eu5kqizhji

Large-Scale Reasoning on Expressive Horn Ontologies

Carlo Allocca, Francesco Calimeri, Cristina Civili, Roberta Costabile, Bernardo Cuteri, Alessio Fiorentino, Davide Fuscà, Stefano Germano, Giovanni Laboccetta, Marco Manna, Simona Perri, Kristian Reale (+3 others)
2019 Datalog  
In this scenario, it is convenient to reduce standard reasoning tasks to query evaluation over (deductive) databases. From a theoretical viewpoint much has been done.  ...  To fill the gap, the paper presents owl2dlv, a novel and modern Datalog system for evaluating SPARQL queries over very large OWL 2 knowledge bases. owl2dlv builds on the well-known ASP system dlv by incorporating  ...  This work has been partially supported by Samsung under project "Enhancing the DLV system for large-scale ontology reasoning", by MISE under project "S2BDW" (F/050389/01-03/X32) -"Horizon2020" PON I&C2014  ... 
dblp:conf/datalog/AlloccaCCCCFFGL19 fatcat:4kvt6iqpozdnpptucfcpld536i

Lightweight Community-Driven Ontology Evolution [chapter]

Katharina Siorpaes
2007 Lecture Notes in Computer Science  
domain experts, and (4) the community does not have control over the ontology evolution.  ...  The contribution of this thesis is a methodology and prototype for communitygrounded building and evolution of lightweight domain ontologies.  ...  is not available. (4) Most ontologies are built by a group of engineers and the user community does not have direct control over the evolution of the ontology.  ... 
doi:10.1007/978-3-540-76298-0_76 fatcat:p4wboereyjczxf42nmhgikhh6i

Authorization Framework for Medical Data

Geetha Madadevaiah, RV Prasad, Amogh Hiremath, Michel Dumontier, Andre Dekker
2019 International Journal of Database Management Systems  
The framework builds on the advantages of the Semantic Web technologies and makes it secure and robust for sharing sensitive information in a controlled environment.  ...  A lightweight ontologywas developed, to collect consent from the users indicating which part of their data they want to share with another user having a particular role.  ...  CONCLUSION The authors built a lightweight ontology to collect the consents from the users indicating which data entities they want to share with another user with a specific role.  ... 
doi:10.5121/ijdms.2019.11302 fatcat:kav2izdswrbbzk2bdztjwtmeqa

Software Architecture Documentation: The Road Ahead

Antony Tang, Peng Liang, Hans van Vliet
2011 2011 Ninth Working IEEE/IFIP Conference on Software Architecture  
We propose to index software documents with a suitable lightweight ontology to improve the retrieval and traceability of software knowledge.  ...  A Lightweight Ontology An ontology defines a common vocabulary for those who need to organize and share information in a given domain.  ...  A lightweight ontology for indexing knowledge in requirements and architecture design documents B.  ... 
doi:10.1109/wicsa.2011.40 dblp:conf/wicsa/TangLV11 fatcat:fbirjecoofcsjnnv4aeubwgy5u

Ontologies and Data Management: A Brief Survey

Thomas Schneider, Mantas Šimkus
2020 Künstliche Intelligenz  
This survey gives an overview of research work on the use of ontologies for accessing incomplete and/or heterogeneous data.  ...  In order to align and complete data, systems may rely on taxonomies and background knowledge that are provided in the form of an ontology.  ...  The evaluation of an OMQ Q over an ABox A yields a relation, which is called the query answer (to Q over A).  ... 
doi:10.1007/s13218-020-00686-3 pmid:32999532 pmcid:PMC7497697 fatcat:zeskjfjrpvcojjh6q3yjzhlyci

IoT-Stream: A Lightweight Ontology for Internet of Things Data Streams and Its Use with Data Analytics and Event Detection Services

Tarek Elsaleh, Shirin Enshaeifar, Roonak Rezvani, Sahr Thomas Acton, Valentinas Janeiko, Maria Bermudez-Edo
2020 Sensors  
It includes modules needed to annotate, consume, and query data annotated with IoT-Stream.  ...  It takes advantage of common knowledge sharing of the semantics, but keeping the inferences and queries simple.  ...  STARQL Streaming and Temporal ontology Access with a Reasoning-based Query Language SysML Systems Modelling Language TCP/IP Transmission Control Protocol/Internet Protocol W3C World Wide Web Consortium  ... 
doi:10.3390/s20040953 pmid:32053898 pmcid:PMC7071512 fatcat:fodkog3canenxfpikp3itiwya4
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