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1. Freeze-casting for PLGA/carbonated apatite composite scaffolds: structure and properties

Author

Benjamin Duployer, Roberto Hübler, Christophe Tenailleau, Dominique Poquillon, Christèle Combes, Mariane Schardosim, Sophie Cazalbou, Jérémy Soulié, Christian Rey, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
Scaffold, Materials science, Matériaux, Composite number, Bioengineering, Composite, 02 engineering and technology, Porous scaffolds, 010402 general chemistry, 01 natural sciences, Apatite, [SPI.MAT]Engineering Sciences [physics]/Materials, Biomaterials, chemistry.chemical_compound, Polylactic Acid-Polyglycolic Acid Copolymer, Apatites, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Lactic Acid, Composite material, Porosity, Génie des procédés, chemistry.chemical_classification, Bone engineering, Tissue Engineering, Tissue Scaffolds, Carbonated apatite, PLGA, Porosimetry, Polymer, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, Mechanics of Materials, visual_art, visual_art.visual_art_medium, Dimethyl carbonate, 0210 nano-technology, Polyglycolic Acid
Abstract

International audience; This paper focuses on the fabrication of three-dimensional porous PLGA-biomimetic carbonated apatite composite scaffolds by freeze-casting and using dimethyl carbonate as a solvent. Several charge/polymer ratios were tested in order to finely understand the influence of the filler rate on the scaffold porosity and mechanical and degradation properties using complementary characterization techniques (SEM, mercury porosimetry and X-ray microtomography). It was demonstrated that the apatite ratio within the composite scaffold has a strong influence in terms of architecture, material cohesion, mechanical properties and in vitro degradation properties. An optimum biomimetic apatite ratio was reached to combine good mechanical properties (higher rigidity) and material cohesion. In vitro degradation studies showed that higher apatite filler rates limited PLGA degradation and enhanced the hydrophilicity of the scaffolds which is expected to improve the biological properties of the scaffolds in addition to the bioactivity related to the presence of the apatite analogous to bone mineral.

Published
2017
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2. VOAR 3.0 : a Configurable Environment for Manipulating Multiple Ontology Alignments

Author

Severo, Bernardo, Trojahn, Cassia, Vieira, Renata, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-TT]Computer Science [cs]/Document and Text Processing, Traitement du texte et du document, Ontology and alignment libraries
Abstract

International audience; This paper presents a Web-based environment for visualizing, editing and evaluating multiple ontology alignments. Users can configure their environment according to their needs and tasks, choosing different visualization modes and creating different profiles. They can apply a set of operations on the alignments (filtering, merge, etc.) and evaluate them against a reference one, using classical metrics. Ontology and alignment libraries allow for users storing and searching them in the system. In this demo, these functionalities will be demonstrated.

Published
2017

3. Analysing top-level and domain ontology alignments from matching systems

Author

Schmidt, D., Trojahn, C., Renata Vieira, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
Traitement du texte et du document, Construction and integration of domain ontologies
Abstract

Top-level ontologies play an important role in the construction and integration of domain ontologies, providing a well-founded reference model that can be shared across knowledge domains. While most efforts in ontology matching have been particularly dedicated to domain ontologies, the problem of matching domain and top-level ontologies has been addressed to a lesser extent. This is a challenging task, specially due to the different levels of abstraction of these ontologies. In this paper, we present a comprehensive analysis of the alignments between one domain ontology from the OAEI Conference track and three well known top-level ontologies (DOLCE, GFO and SUMO), as generated by a set of matching tools. A discussion of the problem is presented on the basis of the alignments generated by the tools, compared to the analysis of three evaluators. This study provides insights for improving matching tools to better deal with this particular task.

Published
2016

4. Validating Top-level and Domain Ontology Alignments using WordNet

Author

Schmidt, Daniela, Trojahn dos Santos, Cassia, Vieira, Renata, Kamel, Mouna, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] ( PUCRS ), Institut de recherche en informatique de Toulouse ( IRIT ), and Institut National Polytechnique [Toulouse] ( INP ) -Université Toulouse 1 Capitole ( UT1 ) -Université Toulouse - Jean Jaurès ( UT2J ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS )

Subjects
Logique en informatique, [INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG], WordNet, [INFO.INFO-LO]Computer Science [cs]/Logic in Computer Science [cs.LO], [ INFO.INFO-LO ] Computer Science [cs]/Logic in Computer Science [cs.LO], [ INFO.INFO-CL ] Computer Science [cs]/Computation and Language [cs.CL], Informatique et langage, Intelligence artificielle, [ INFO.INFO-AI ] Computer Science [cs]/Artificial Intelligence [cs.AI], [ INFO.INFO-LG ] Computer Science [cs]/Machine Learning [cs.LG], [INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL], Apprentissage, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract

International audience; Matching domain and top-level ontologies is an important task but still an open problem in the ontology matching field, particularly due to their different levels of abstraction. Beyond that, validating candidate alignments is crucial before exploiting them within ontology construction and integration processes involving such kinds of ontologies. This paper concerns the automatic validation of candidate alignments between top and domain ontologies, exploiting WordNet background knowledge. We apply our approach for validating alignments generated by a set of matching tools and discuss the results against manual validation. Our experiments are based on one domain ontology and three well-known top-level ontologies.

Published
2016

5. A GUI for Visualising and Manipulating Multiple Ontology Alignments

Author

Severo, B., Trojahn, C., Renata Vieira, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Institut National Polytechnique de Toulouse - INPT (FRANCE), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-TT]Computer Science [cs]/Document and Text Processing, Traitement du texte et du document, Multiple ontology alignments
Abstract

International audience; This paper presents a Web-based environment for visualising and manipulating multiple ontology alignments at schema-level. While most solutions are limited to the visualisation of single alignments and are still provided as part of specific standalone matching systems, we propose an open environment that is not bound to any specific system. Within this graphical environment, users can manually create, suppress and edit correspondences and apply a set of operations on alignments (filtering, merge, difference, etc.). Evaluating multiple alignments, against a reference one, can also be carried out using classical evaluation metrics. In this demo, all these tasks will be demonstrated.

Published
2015

6. Comparing Semantic Relatedness between Word Pairs in Portuguese Using Wikipedia

Author

Roger Granada, Cassia Trojahn, Renata Vieira, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), and Université Toulouse - Jean Jaurès (UT2J)

Subjects
business.industry, Computer science, Informatique et langage, 02 engineering and technology, Semantic relatedness, computer.software_genre, [INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL], language.human_language, Semantic similarity, Similarity dataset, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, language, 020201 artificial intelligence & image processing, Artificial intelligence, Portuguese, business, computer, Natural language processing, Word (computer architecture), Natural language
Abstract

International audience; The growth of available data in digital format has been facilitating the development of new models to automatically infer the semantic similarity between word pairs. However, there are still many natural languages without sufficient resources to evaluate measures of semantic relatedness. In this paper we translated word pairs from a well-known baseline for evaluating semantic relatedness measures into Portuguese and performed a manual evaluation of each pair. We compared the correlation with similar datasets in other languages and generated LSA models from Wikipedia articles in order to verify the pertinence of each dataset and how semantic similarity conveys across languages.

Published
2014

7. Monitoring On-line Timing Information to Support Mixed-Critical Workloads

Author

Kritikakou, Angeliki, Baldellon, Olivier, Pagetti, Claire, Rochange, Christine, Roy, Matthieu, Vargas, Fabian, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Laboratoire d'Analyse et d'Architecture des Systèmes - LAAS (Toulouse, France), ONERA - The French Aerospace Lab [Toulouse], ONERA, Équipe Tolérance aux fautes et Sûreté de Fonctionnement informatique (LAAS-TSF), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Groupe de Recherche en Architecture et Compilation pour les systèmes embarqués (IRIT-TRACES), Institut de recherche en informatique de Toulouse (IRIT), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Pontifical Catholic University of Rio Grande do Sul (PUC-RS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
Mixed-critical workloads, Architectures Matérielles, Worst case execution time, Système d'exploitation, Réseaux et télécommunications, [INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC], Systèmes embarqués
Abstract

International audience; Many/multi-cores architectures provide tremendous increase in computation power, increasing the possibility of executing additional tasks on the system. In critical embedded systems, e.g. aeronautical systems, the uncertainty of the non-uniform and concurrent memory access scheme prohibits the full utilization of the system potentials. Classical Worst Case Execution Time (WCET) estimation techniques upper bound the memory accesses -considering a fully congested memory bus - resulting in safe, but pessimistic, bounds. The proposed approach explores the increase in the system utilization by less critical tasks, while guaranteeing the safety of the critical task.

Published
2013

8. Results of the ontology alignment evaluation initiative 2013

Author

Cucena Grau, Bernardo, Dragisic, Zlatan, Eckert, Kai, Euzenat, Jérôme, Ferrara, Alfio, Granada, Roger, Ivanova, Valentina, Jiménez-Ruiz, Ernesto, Kempf, Andreas Oskar, Lambrix, Patrick, Nikolov, Andriy, Heiko Paulheim, Ritze, Dominique, Scharffe, Francois, Shvaiko, Pavel, Trojahn, Cássia, Zamazal, Ondrej, Department of Computer Science [Oxford], University of Oxford, Department of Computer and Information Science - Linköping University, Linköping University (LIU), Institut für Informatik [Mannheim], Universität Mannheim, Computer mediated exchange of structured knowledge (EXMO), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire d'Informatique de Grenoble (LIG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Dipartimento di Elettronica e Informazione (DEI), Politecnico di Milano [Milan] (POLIMI), Pontifical Catholic University of Rio Grande do Sul (PUC-RS), Leibniz-Institute for the Social Sciences [Mannheim] (GESIS), Fluid Operations AG, Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Informatica Trentina [Trento], MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Vytsoka Skola Ekonomicka v Praze (VSE), Vysoká škola ekonomická v Praze, Infra-Seals, European Project: 238975,EC:FP7:INFRA,FP7-INFRASTRUCTURES-2008-2,SEALS(2009), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire d'Informatique de Grenoble (LIG), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Institut polytechnique de Grenoble (FRANCE), Institut National de la Recherche en Informatique et en Automatique - INRIA (FRANCE), Université Pierre Mendès France, Grenoble 2 - UPMF (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Università degli Studi di Milano (ITALY), Université de Montpellier 2 (FRANCE), Fluid operations AG (GERMANY), Informatica Trentina (ITALY), Leibniz Institute for the Social Sciences - GESIS (GERMANY), Linköpings Universitet - LiU (SWEDEN), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), Université Joseph Fourier Grenoble 1 - UJF (FRANCE), University of Oxford (UNITED KINGDOM), University of Economics (CZECH REPUBLIC), University of Mannheim (GERMANY), Laboratoire d'Informatique de Grenoble - LIG (Grenoble, France), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier - LIRMM (Montpellier, France), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), University of Oxford [Oxford], Universität Mannheim [Mannheim], Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF), Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), Leibniz-Institute for the Social Sciences [Mannheim] (GESIS ), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), and Université Fédérale Toulouse Midi-Pyrénées

Subjects
Logique en informatique, Ontology matching, [INFO.INFO-OH]Computer Science [cs]/Other [cs.OH], Informatique et langage, OAEI, Intelligence artificielle, Apprentissage, Ontology Alignment Evaluation Initiative
Abstract

cuencagrau2013a; International audience; Ontology matching consists of finding correspondences between semantically related entities of two ontologies. OAEI campaigns aim at comparing ontology matching systems on precisely defined test cases. These test cases can use ontologies of different nature (from simple thesauri to expressive OWL ontologies) and use different modalities, e.g., blind evaluation, open evaluation and consensus. OAEI 2013 offered 6 tracks with 8 test cases followed by 23 participants. Since 2010, the campaign has been using a new evaluation modality which provides more automation to the evaluation. This paper is an overall presentation of the OAEI 2013 campaign.

9. Exploiting BabelNet for generating subsumption

Author

Kamel, M., Schmidt, D., Cassia Trojahn, Vieira, R., Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-TT]Computer Science [cs]/Document and Text Processing, Traitement du texte et du document, Ontology matching
Abstract

International audience; Whereas the ontology matching field has developed fully in the last decades, most matching approaches are still limited to generating equivalences between entities of different ontologies. However, for many tasks, finding subsumption relations may be useful. Despite the variety of matching approaches in the literature, most of them rely on string-based techniques as an initial estimate of the likelihood that two elements refer to the same real world phenomenon, hence, the found correspondences represent equivalences with terms similarly written rather than subsumptions. This paper presents an approach relying on background knowledge from BabelNet (BN) [3] and on the notion of context. The latter has been exploited in different ways in ontology matching [2, 4]. They are used for disambiguating the senses that better express the meaning of ontology concepts when looking for subsumption relations between them in BN.

10. PLATAL - A tool for web hierarchies extraction and alignment

Author

Severo, B., Cassia Trojahn, Vieira, R., Pontifícia Universidade Católica do Rio Grande do Sul, MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
Logique en informatique, [INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG], [INFO.INFO-LO]Computer Science [cs]/Logic in Computer Science [cs.LO], Informatique et langage, ComputerApplications_COMPUTERSINOTHERSYSTEMS, Intelligence artificielle, Apprentissage, [INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL], [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract

International audience; This paper presents PLATAL, a modular and extensible toolfor extraction of hierarchical structures from web pages which can be automatically aligned and also manually edited via a graphical interface. Evaluation of alignments can be carried out using standard measures.

11. VOAR: A visual and integrated ontology alignment environment

Author

Severo, B., Cassia Trojahn, Vieira, R., Pontifícia Universidade Católica do Rio Grande do Sul [Porto Alegre] (PUCRS), MEthodes et ingénierie des Langues, des Ontologies et du DIscours (IRIT-MELODI), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Pontificia Universidade Catolica do Rio Grande do Sul - PUCRS (BRAZIL), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
Logique en informatique, Tools, [INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG], Applications, Systems, [INFO.INFO-LO]Computer Science [cs]/Logic in Computer Science [cs.LO], Informatique et langage, Intelligence artificielle, Apprentissage, [INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL], Semantic Web, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract

International audience; Ontology alignment is a key process for enabling interoperability between ontology-based systems in the Linked Open Data age. From two input ontologies, this process generates an alignment (set of correspondences) between them. In this paper we present VOAR, a new web-based environment for ontology alignment visualization and manipulation. Within this graphical environment, users can manually create/edit correspondences and apply a set of operations on alignments (filtering, merge, difference, etc.). VOAR allows invoking external ontology matching systems that implement a specific alignment interface, so that the generated alignments can be manipulated within the environment. Evaluating multiple alignments together against a reference one can also be carried out, using classical evaluation metrics (precision, recall and f-measure). The status of each correspondence with respect to its presence or absence in reference alignment is visually represented. Overall, the main new aspect of VOAR is the visualization and manipulation of alignments at schema level, in an integrated, visual and web-based environment.

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