Zoè Lacroix Edna Ruckhaus Maria-Esther Vidal (Eds.) RED’12 Fifth International Workshop on REsource Discovery Workshop co-located with the 9th Extended Semantic Web Con- ference (ESWC 2012) Heraklion, Greece, May 27th, 2012 Proceedings c 2012 for the individual papers by the papers’ authors. Copying permitted for private and academic purposes. Re-publication of material from this volume requires permission by the copyright owners. Editors’ addresses: Arizona State University {zoe.lacroix}@asu.edu Universidad Simón Bolı́var Department of Computer Science Valle de Sartenejas Caracas 1086, Venezuela {ruckhausl | mvidal}@ldc.usb.ve Preface This volume contains abstracts from the technical program of the Fifth International Work- shop on REsource Discovery, held on May 27th, 2012. After four successful events, first in Linz, Austria, joined to IIWAS (2008), then in Lyon, France, collocated with VLDB (2009), next in Pontoise, France, joined again to IIWAS (2010), and the fourth edition in conjunction with ESWC11. Finally, the fifth International Workshop on REsource Dis- covery (RED 2012) was run again together with ESWC in Heraklion, Greece. A resource may be a data repository, a database management system, a SPARQL endpoint, a link between resources, an entity in a social network, a semantic wiki, or a linked ser- vice. Resources are characterized by core information including a name, a description of its functionality, its URLs, and various additional Quality of Service parameters that ex- press its non-functional characteristics. Resource discovery is the process of identifying, locating and selecting existing resources that satisfy specific functional and non-functional requirements; also, resource discovery includes the problem of predicting links between resources. Current research includes crawling, indexing, ranking, clustering, and rewriting techniques, for collecting and consuming the resources for a specific request; additionally, processing techniques are required to ensure an efficient and effective access of the re- sources. The Fifth International Workshop on Resource Discovery aimed at bringing together re- searchers from the database, artificial intelligence and semantic web areas, to discuss re- search issues and experiences in developing and deploying concepts, techniques and appli- cations that address various issues related to resource discovery. This fifth edition focused on techniques to efficiently collect and consume resources that are semantically described. Approaches of special interest contribute to solve the resource discovery problem such as query rewriting in Databases, service selection and composition in Service Oriented Archi- tectures, social network navigational techniques, link prediction techniques, and strategies to process queries against Linked Data or SPARQL endpoints. We received seven submissions, out of which we selected five for inclusion in the digital and printed proceedings. We set up an exciting program which included three invited talks. The first on Semantic Source Modeling given by our invited speaker, José Luis Ambite; the second, on the advantages of using semantic annotations in medical image visualiza- tion given by Alexandra La Cruz; finally, Edna Ruckhaus presented Probabilistic Models and Reasoning Techniques to Detect Inconsistencies in Linked Data. We organized two sessions, one on Techniques for Resource Discovery and another section on Applications of Resource Discovery. We thank the 25 members of our Program Committee, the invited speakers and the authors for their valuable contribution to the workshop. We are also grateful to ESWC organizers for their support in making this meeting successful. We kindly acknowledge the National Science Foundation (grant IIS 0944126), and the DID-USB. May 2012 Zoé Lacroix, Edna Ruckhaus, Maria-Esther Vidal Workshop Chairs and Organizing Committee Zoè Lacroix, Arizona State University, USA Edna Ruckhaus, Universidad Simón Bolı́var, Venezuela Maria-Esther Vidal, Universidad Simón Bolı́var Program Committee Maribel Acosta, AIFB, Karlsruhe Institute of Technology, Germany. José Luis Ambite, University Southern California, USA. Yudith Cardinale, Universidad Simón Bolı́var, Venezuela. Oscar Corcho, Universidad Politecnica de Madrid, Spain. Jose Cordeiro, Polytechnic Institute of Setubal, Portugal. Valeria De Antonelis, Universita degli Studi di Brescia, Italy. Alberto Fernandez, Universidad Juan Carlos I, Spain. Norbert Fuhr, University of Duisburg, Germany. Manolis Gergatsoulis, Ionian University, Greece. Marlene Goncalves, Universidad Simón Bolı́var, Venezuela. Andreas Harth, AIFB, Karlsruhe Institute of Technology, Germany. H.V. Jagadish, University of Michigan, USA. Nikos Kiourtis, National Technical University of Athens, Greece. Birgitta Koning-Ries University oj Jena, Germany. Gunter Ladwig, AIFB, Karlsruhe Institute of Technology, Germany. Maria Maleshkova, KMI, The Open University, United Kingdom. Anja Metzner, University of Applied Scinces, Augsburg, Germany. Pascal Moli, Nantes University, LINA, France. Fatiha Sais, LRI (Paris-Sud 11 University & CNRS), France. Sherif Sakr, National ICT Australia (NICTA) and University of New South Wales (UNSW), Australia. Miguel-Angel Sicilia, University of Alcala, Spain. Hala Skaf-Moli, Nantes University, LINA, France. Dimitrios Skotas, University of Hannover, Germany. Andreas Thor, Universitat Leipzig, Germany. Maciej Zaremba, DERI and National University of Ireland, Ireland. Table of Contents SDDS based Hierarchical DHT Systems for an Efficient Resource Discovery in Data Grid Systems 52-66 Riad Mokadem, Abdelkader Hameurlain and Franck Morvan Towards Service-Oriented Resource Discovery by means of Semantic Web Reasoning 67-80 Alexey Cheptsov Should I quit using my resource? Modeling Resource Usage through Game Theory 81-88 Paraskevas V. Lekeas FaCETa: Backward and Forward Recovery for Execution of Transactional Composite WS 89-103 Rafael Angarita, Yudith Cardinale and Marta Rukoz Discovering Semantic Equivalence of People behind Online Profiles 104-118 Keith Cortis, Simon Scerri, Ismael Rivera and Siegfried Handschuh