NUI Galway – UL Alliance First Annual ENGINEERING AND - ARAN ...

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Enabling Federation of Government Metadata Repositories Gofran Shukair 1 , Nikos Loutas 1 , Fadi Maali 1 , Vassilios Peristeras 2 1 Digital Enterprise Research Institute, NUI Galway (firstname.lastname)@deri.org 2 EC, DG for Informatics, Interoperability Solutions for European Public Administrations Abstract Data models, taxonomies, ontologies, code lists and semantic data exchange formats are the key resources for creating interoperable data exchange. These resources exists in several national repositories that differ in scope and in target group they are addressing and they are implemented using different technologies and expose different user interfaces to the end user. However the semantic content they include can often be reused even bypass the domain they were originally designed for. Seamless data exchange has been the motivation to enable interoperability of these different repositories in order to reach a federation of repositories where users can search for resources or assets in all the available repositories using a unified user interface. 1. Introduction Resources, such as data models and schemata, taxonomies, ontologies, code lists are the means for seamless data exchange. In the context of this work, we use the term asset to refer to these types of resources. When it comes to government data, assets exist in isolated national e-government metadata repositories that differ (i) in scope, (ii) in target group they are addressing, (iii) are implemented using different technologies and (iv) expose different user interfaces to the end user. The semantic content they include can often be reused even bypass the domain they were originally designed for. But the physical isolation of these repositories and the heterogeneity of the assets hamper the reusability of common concepts. Hence, this research aims to (a) define a common data model to describe the assets of national egovernment metadata repositories and (b) to develop a proof-of-concept prototype showcasing the added-value of federation through cross-repository asset discovery and retrieval using a single point of access. 2. Common Model Development This section introduces the Asset Description Metadata Schema (ADMS) and discusses its implementation using linked data and Semantic Web technologies. Thus, ADMS is implemented as an RDF Schema vocabulary which includes the core elements and the attributes needed to model an asset. We reuse properties from existing linked data vocabularies (e.g. DCAT 1 , DCMI 2 ) in the definition of an asset (Figure 1). 1 F. Maali, R. Cyganiak, V. Peristeras. Enabling interoperability of government data catalogues. In Electronic Government, LNCS, 2010. 2 http://dublincore.org/ 113 An asset is a container dedicated to group artefact types that enable cross-repository interoperability and seamless data exchange. It is defined as a subclass dcat:Dataset with additional properties like dc:publisher and dc:spatial. The property adms:release is used for differentiating between the versions of each asset and the asset itself, Each asset will be related to its latest release using the property adms:release. Each release will be related to its previous one using. dc:hasVersion. Figure 1. ADMS Model in RDF 3. Proof of concept Architecture Figure 2 shows the proposed architecture where assets from different national e-government metadata repositories can be queried and retrieved through a single point of access (SPARQL endpoint). Valueadded services, such as data mashups and faceted browsers, and third party applications can be built on top of this architecture. ADMS defines the administrative and descriptive metadata of the assets housed in the repositories. These assets can then queried and retrieved using querying API. Repositories can be connected to the federation and publish their assets’ metadata using the Publishing API and services. Figure 2. Proof of Concept prototype Acknowledgments. This work is a joint effort between ]init[, EC ISA, NUI Galway and the University of Macedonia. It is funded in part by Science Foundation Ireland under Grant No. SFI/08/CE/I1380 (Lion-2).
114 Fig.1 - The RDF representation of a particular car. :myCarSet a csp:And ; csp:and [csp:var :gearbox ; csp:val :Manual], [csp:var :fuel ; csp:val :Petrol, :Diesel] . Fig.2 - An RDF representation of cars with manual gearbox and diesel type of fuel.
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NUI Galway - UL Alliance First Annu
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FULL TABLE OF CONTENTS 1 GAMES, VIS
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4 MECHANICAL AND BIOMEDICAL ENGINEE
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5.21 Detecting Topics and Events in
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8.7 Modelling Extreme Flood Events
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GAMES, VISUALISATION & EDUCATION 1.
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Generation and Analysis of Graph St
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Evolution and Analysis of Strategie
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Abstract The delivery of multimedia
Page 20 and 21:
Applications of Reinforcement Learn
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Assessing the effects of interactiv
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Real-time depth map generation usin
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An analysis of the capability of pr
Page 28 and 29:
Building Information Modelling duri
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Dwelling Energy Measurement Procedu
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Numerical Modelling of Tidal Turbin
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Energy Storage using Microencapsula
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Data Centre Energy Efficiency Mark
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An embodied energy and carbon asses
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SmartOp - Smart Buildings Operation
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Ocean Wave Energy Exploitation in D
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Future Smart Grid Synchronization C
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Web-Based Building Energy Usage Vis
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Image Recognition and Classificatio
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Android Based Multi-Feature Elderly
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Determining Subjects’ Activities
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New Analysis Techniques for ICU Dat
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National E-Prescribing Systems in I
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Using Mashups to Satisfy Personalis
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3D Computational Modeling of Blood
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Experimental and Computational Inve
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Experimental Analysis of the Therma
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Simulating Actin Cytoskeleton Remod
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Computational Analysis of Transcath
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An In vitro Shear Stress System for
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Development of a Micropipette Aspir
Page 74 and 75: A Computational Test-Bed to Examine
Page 76 and 77: Computational Modeling of Ceramic-b
Page 78 and 79: Multi-Scale Computational Modelling
Page 80 and 81: Development of a mixed-mode cohesiv
Page 82 and 83: Active Computational Modelling of C
Page 84 and 85: Modelling the Management of Medical
Page 86 and 87: SOCIAL MEDIA, SEARCH & RECOMMENDATI
Page 88 and 89: Improving Twitter Search by Removin
Page 90 and 91: Abstract The goal of this research
Page 92 and 93: Generalized Blockmodeling Samantha
Page 94 and 95: Life-Cycles and Mutual Effects of S
Page 96 and 97: dcat: Searching Public Sector Infor
Page 98 and 99: The Effect of User Features on Chur
Page 100 and 101: User Similarity and Interaction in
Page 102 and 103: Improving Categorisation in Social
Page 104 and 105: Natural Language Queries on Enterpr
Page 106 and 107: Studying Forum Dynamics from a User
Page 108 and 109: Provenance in the Web of Data: a bu
Page 110 and 111: Towards Social Descriptions of Serv
Page 112 and 113: ENVIRONMENTAL ENGINEERING 6.1 Asses
Page 114 and 115: Novel Agri-engineering solutions fo
Page 116 and 117: Evaluation of amendments to control
Page 118 and 119: Determination of optimal applicatio
Page 120 and 121: Treatment of Piggery Wastewaters us
Page 122 and 123: NEXT GENERATION INTERNET 7.1 Extens
Page 126 and 127: Curated Entities for Enterprise Uma
Page 128 and 129: Mobile Web + Social Web + Semantic
Page 130 and 131: Engaging Citizens in the Policy-Mak
Page 132 and 133: Preference-based Discovery of Dynam
Page 134 and 135: RDF On the Go: An RDF Storage and Q
Page 136 and 137: Policy Modeling meets Linked Open D
Page 138 and 139: A Contextualized Perspective for Li
Page 140 and 141: Improving discovery in Life Science
Page 142 and 143: The Semantic Public Service Portal
Page 144 and 145: Personalized Content Delivery on Mo
Page 146 and 147: A Framework to Describe Localisatio
Page 148 and 149: The influence of secondary settleme
Page 150 and 151: Analysis of Shear Transfer in Void-
Page 152 and 153: Cost-Effective Sustainable Construc
Page 154 and 155: Modelling Extreme Flood Events due
Page 156 and 157: Axial Load Capacity of a Driven Cas
Page 158 and 159: Chemical amendment of dairy cattle
Page 160 and 161: Seismic Design of Concentrically Br
Page 162 and 163: MODELLING, ALGORITHMS & CONTROL 9.1
Page 164 and 165: Eigen-based Approach for Leverage P
Page 166 and 167: Evolutionary Modelling of Industria
Page 168 and 169: Abstract: Graphical Semantic Wiki f
Page 170 and 171: Low Coverage Genome Assembly Using
Page 172 and 173: Evolving a Robust Open-Ended Langua
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Context Stamp - A Topic-based Conte
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DSP-Based Control of Multi-Rail DC-
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Topographical Cues - Controlling Ce
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Creep Relaxation and Crack Growth P
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Finite Element Modelling of Failure
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Influence of Fluorine and Nitrogen
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Phase Decompositions of Bioceramic
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High Resolution Microscopical Analy
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An Experimental and Numerical Analy
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Thermomechanical characterisation o
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A multiaxial damage mechanics metho
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The effect of citrate ester plastic
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