A Navigational Language for RDF
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List of Numeric Codes for Railway Companies (RICS Code) Contact : [email protected]
List of numeric codes for railway companies (RICS Code) contact : [email protected] reference : http://www.uic.org/rics code short name full name country request date allocation date modifieddate beginvalidityof validityendof recent Freight Passenger Infra- structure Holding Integrated Other url 0006 StL Holland Stena Line Holland BV NL 01/07/2004 01/07/2004 x http://www.stenaline.nl/ferry/ 0010 VR VR-Yhtymä Oy FI 30/06/1999 30/06/1999 x http://www.vr.fi/ 0012 TRFSA Transfesa ES 30/06/1999 30/06/1999 04/10/2016 x http://www.transfesa.com/ 0013 OSJD OSJD PL 12/07/2000 12/07/2000 x http://osjd.org/ 0014 CWL Compagnie des Wagons-Lits FR 30/06/1999 30/06/1999 x http://www.cwl-services.com/ 0015 RMF Rail Manche Finance GB 30/06/1999 30/06/1999 x http://www.rmf.co.uk/ 0016 RD RAILDATA CH 30/06/1999 30/06/1999 x http://www.raildata.coop/ 0017 ENS European Night Services Ltd GB 30/06/1999 30/06/1999 x 0018 THI Factory THI Factory SA BE 06/05/2005 06/05/2005 01/12/2014 x http://www.thalys.com/ 0019 Eurostar I Eurostar International Limited GB 30/06/1999 30/06/1999 x http://www.eurostar.com/ 0020 OAO RZD Joint Stock Company 'Russian Railways' RU 30/06/1999 30/06/1999 x http://rzd.ru/ 0021 BC Belarusian Railways BY 11/09/2003 24/11/2004 x http://www.rw.by/ 0022 UZ Ukrainski Zaliznytsi UA 15/01/2004 15/01/2004 x http://uz.gov.ua/ 0023 CFM Calea Ferată din Moldova MD 30/06/1999 30/06/1999 x http://railway.md/ 0024 LG AB 'Lietuvos geležinkeliai' LT 28/09/2004 24/11/2004 x http://www.litrail.lt/ 0025 LDZ Latvijas dzelzceļš LV 19/10/2004 24/11/2004 x http://www.ldz.lv/ 0026 EVR Aktsiaselts Eesti Raudtee EE 30/06/1999 30/06/1999 x http://www.evr.ee/ 0027 KTZ Kazakhstan Temir Zholy KZ 17/05/2004 17/05/2004 x http://www.railway.ge/ 0028 GR Sakartvelos Rkinigza GE 30/06/1999 30/06/1999 x http://railway.ge/ 0029 UTI Uzbekistan Temir Yullari UZ 17/05/2004 17/05/2004 x http://www.uzrailway.uz/ 0030 ZC Railways of D.P.R.K. -
General Court of the European Union PRESS RELEASE No 5/15 Luxembourg, 15 January 2015
General Court of the European Union PRESS RELEASE No 5/15 Luxembourg, 15 January 2015 Judgment in Case T-1/12 Press and Information France v European Commission The General Court confirms that the aid granted by the SNCF to SeaFrance is incompatible with the internal market SeaFrance, now wound up, was a French public limited company that was indirectly 100% owned by the French public entity the SNCF. It operated maritime passenger and freight transport services between the ports of Calais and Dover. In 2009, SeaFrance owned six vessels and employed 1 550 staff. From 2008, SeaFrance’s financial situation systematically deteriorated owing to unfavourable conditions, internal difficulties and industrial action. The SNCF therefore set up a credit line in favour of SeaFrance. That rescue aid was approved by the Commission on 18 August 2010.1 The French authorities subsequently notified the Commission of a restructuring aid package in favour of SeaFrance along with a restructuring plan. That restructuring was to be financed mainly by State aid in the form of a recapitalisation of SeaFrance in the amount of €223 million. Following a complaint of a competitor of SeaFrance, the French authorities communicated, at the end of 2011, a modified restructuring plan: the recapitalisation of SeaFrance was now to be limited to €166.3 million and to be accompanied by two loans granted by the SNCF. The first loan, of €99.7 million, was intended to finance the restructuring, while the second loan sought to replace a loan pertaining to one of the vessels of the fleet. By decision of 24 October 2011,2 the Commission found that the rescue aid agreed in 2010 and the restructuring measures set out in the 2011 plan (recapitalisation and loans) constituted State aid incompatible with the internal market. -
Semantics Developer's Guide
MarkLogic Server Semantic Graph Developer’s Guide 2 MarkLogic 10 May, 2019 Last Revised: 10.0-8, October, 2021 Copyright © 2021 MarkLogic Corporation. All rights reserved. MarkLogic Server MarkLogic 10—May, 2019 Semantic Graph Developer’s Guide—Page 2 MarkLogic Server Table of Contents Table of Contents Semantic Graph Developer’s Guide 1.0 Introduction to Semantic Graphs in MarkLogic ..........................................11 1.1 Terminology ..........................................................................................................12 1.2 Linked Open Data .................................................................................................13 1.3 RDF Implementation in MarkLogic .....................................................................14 1.3.1 Using RDF in MarkLogic .........................................................................15 1.3.1.1 Storing RDF Triples in MarkLogic ...........................................17 1.3.1.2 Querying Triples .......................................................................18 1.3.2 RDF Data Model .......................................................................................20 1.3.3 Blank Node Identifiers ..............................................................................21 1.3.4 RDF Datatypes ..........................................................................................21 1.3.5 IRIs and Prefixes .......................................................................................22 1.3.5.1 IRIs ............................................................................................22 -
Transport Research Market Uptake (Market-Up) Deliverable: D 2.1
Project ID: 265841 Transport Research Market Uptake (Market-up) Deliverable: D 2.1 Characterisation of the context of RTD initiatives per sectoral area Lead partner: UNIZA Consortium: Project co-funded by the European Commission TIS (PORTUGAL) - Co-ordinator within the Seventh Framework Programme CLEPA (BELGIUM) EMEC (BELGIUM) FRAUNHOFER (GERMANY) BME (HUNGARY) INOVA+ (PORTUGAL) UNIZA (SLOVAKIA) UA (BELGIUM) INNOVA (ITALY) Due Date of Deliverable: October 2011 Start Date of Project: 1 October 2010 Completion Date of Deliverable: December 2011 Duration: 24 Months Dissemination Level PU Public X PP Restricted to other programme participants (including the Commission Services) RE Restricted to a group specified by the consortium (including the Commission Services) CO Confidential, only for members of the consortium (including the Commission Services) Market-up D2.1: Characterisation of the context of RTD initiatives per sectoral area Foreword This report, FP7 Market-up project Deliverable 2.1, was prepared by the team at UNIZA with contributions from all members of the project consortium. The key data concerning Member States was collected by the Market-up team and provided to Transport NCP‟s for validation purposes. Market-up team is particularly thankful to the NCPs from Denmark, Austria, Latvia, Portugal, Slovakia, France and Lithuania for their contribution in the review of our findings. Opinions on main findings on barriers and particularly those faced by the transport SMEs were discussed with Technological Platforms during data collection and specific discussion topics have circulated and feedback asked for. Main findings from D2.1 were also presented in the Review Workshop held on the 26th October in Brussels, which discussion helped to improve our analysis and to enrich the discussion on perspectives for innovation in the transport sector. -
RDF Query Languages Need Support for Graph Properties
RDF Query Languages Need Support for Graph Properties Renzo Angles1, Claudio Gutierrez1, and Jonathan Hayes1,2 1 Dept. of Computer Science, Universidad de Chile 2 Dept. of Computer Science, Technische Universit¨at Darmstadt, Germany {rangles,cgutierr,jhayes}@dcc.uchile.cl Abstract. This short paper discusses the need to include into RDF query languages the ability to directly query graph properties from RDF data. We study the support that current RDF query languages give to these features, to conclude that they are currently not supported. We propose a set of basic graph properties that should be added to RDF query languages and provide evidence for this view. 1 Introduction One of the main features of the Resource Description Framework (RDF) is its ability to interconnect information resources, resulting in a graph-like structure for which connectivity is a central notion [GLMB98]. As we will argue, basic concepts of graph theory such as degree, path, and diameter play an important role for applications that involve RDF querying. Considering the fact that the data model influences the set of operations that should be provided by a query language [HBEV04], it follows the need for graph operations support in RDF query languages. For example, the query “all relatives of degree 1 of Alice”, submitted to a genealogy database, amounts to retrieving the nodes adjacent to a resource. The query “are suspects A and B related?”, submitted to a police database, asks for any path connecting these resources in the (RDF) graph that is stored in this database. The query “what is the Erd˝osnumber of Alberto Mendelzon”, submitted to (a RDF version of) DBLP, asks simply for the length of the shortest path between the nodes representing Erd˝osand Mendelzon. -
Web and Semantic Web Query Languages: a Survey
Web and Semantic Web Query Languages: A Survey James Bailey1, Fran¸coisBry2, Tim Furche2, and Sebastian Schaffert2 1 NICTA Victoria Laboratory Department of Computer Science and Software Engineering The University of Melbourne, Victoria 3010, Australia http://www.cs.mu.oz.au/~jbailey/ 2 Institute for Informatics,University of Munich, Oettingenstraße 67, 80538 M¨unchen, Germany http://pms.ifi.lmu.de/ Abstract. A number of techniques have been developed to facilitate powerful data retrieval on the Web and Semantic Web. Three categories of Web query languages can be distinguished, according to the format of the data they can retrieve: XML, RDF and Topic Maps. This ar- ticle introduces the spectrum of languages falling into these categories and summarises their salient aspects. The languages are introduced us- ing common sample data and query types. Key aspects of the query languages considered are stressed in a conclusion. 1 Introduction The Semantic Web Vision A major endeavour in current Web research is the so-called Semantic Web, a term coined by W3C founder Tim Berners-Lee in a Scientific American article describing the future of the Web [37]. The Semantic Web aims at enriching Web data (that is usually represented in (X)HTML or other XML formats) by meta-data and (meta-)data processing specifying the “meaning” of such data and allowing Web based systems to take advantage of “intelligent” reasoning capabilities. To quote Berners-Lee et al. [37]: “The Semantic Web will bring structure to the meaningful content of Web pages, creating an environment where software agents roaming from page to page can readily carry out sophisticated tasks for users.” The Semantic Web meta-data added to today’s Web can be seen as advanced semantic indices, making the Web into something rather like an encyclopedia. -
XML-Based RDF Data Management for Efficient Query Processing
XML-Based RDF Data Management for Efficient Query Processing Mo Zhou Yuqing Wu Indiana University, USA Indiana University, USA [email protected] [email protected] Abstract SPARQL[17] is a W3C recommended RDF query language. A The Semantic Web, which represents a web of knowledge, offers SPARQL query contains a collection of triples with variables called new opportunities to search for knowledge and information. To simple access patterns which form graph patterns for describing harvest such search power requires robust and scalable data repos- query requirements. For SELECT ?t example, the SPARQL itories that can store RDF data and support efficient evaluation of WHERE {?p type Person. ?r ?x ?t. SPARQL queries. Most of the existing RDF storage techniques rely ?p name ?n. ?p write ?r} query on the left re- on relation model and relational database technologies for these trieves all properties of tasks. They either keep the RDF data as triples, or decompose it reviews written by a person whose name is known. into multiple relations. The mis-match between the graph model The needs to develop applications on the Semantic Web and sup- of the RDF data and the rigid 2D tables of relational model jeop- port search in RDF graphs call for RDF repositories to be reliable, ardizes the scalability of such repositories and frequently renders a robust and efficient in answering SPARQL queries. As in the con- repository inefficient for some types of data and queries. We pro- text of RDB and XML, the selection of storage models is critical to pose to decompose RDF graph into a forest of semantically cor- a data repository as it is the dominating factor to determine how to related XML trees, store them in an XML repository and rewrite evaluate queries and how the system behaves when it scales up. -
Answering SPARQL Queries Modulo RDF Schema with Paths Faisal Alkhateeb, Jérôme Euzenat
Answering SPARQL queries modulo RDF Schema with paths Faisal Alkhateeb, Jérôme Euzenat To cite this version: Faisal Alkhateeb, Jérôme Euzenat. Answering SPARQL queries modulo RDF Schema with paths. [Research Report] RR-8394, INRIA. 2013, pp.46. hal-00904961 HAL Id: hal-00904961 https://hal.inria.fr/hal-00904961 Submitted on 15 Nov 2013 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Answering SPARQL queries modulo RDF Schema with paths Faisal Alkhateeb, Jérôme Euzenat RESEARCH REPORT N° 8394 November 2013 Project-Teams Exmo ISSN 0249-6399 ISRN INRIA/RR--8394--FR+ENG Answering SPARQL queries modulo RDF Schema with paths Faisal Alkhateeb∗, Jérôme Euzenat† Project-Teams Exmo Research Report n° 8394 — November 2013 — 46 pages Abstract: SPARQL is the standard query language for RDF graphs. In its strict instantiation, it only offers querying according to the RDF semantics and would thus ignore the semantics of data expressed with respect to (RDF) schemas or (OWL) ontologies. Several extensions to SPARQL have been proposed to query RDF data modulo RDFS, i.e., interpreting the query with RDFS semantics and/or considering external ontologies. We introduce a general framework which allows for expressing query answering modulo a particular semantics in an homogeneous way. -
Workshop 2013 02-2
WORKSHOP 2013 Sota el patrocini de: Cercle Fundació Abertis Fundació Cercle d'Infraestructures d’Infraestructures Relator: Lluís Inglada (Institut Cerdà) Comitè organitzador: Pere Macias Modest Batlle Toni Brunet Sergi Loughney El futur de les Carles Cabrera Lluís Inglada infraestructures Josep Maria Oliveras Sílvia Borges de transport: Secretaria de redacció: Silvia Borges [email protected] competència o Disseny i maquetació: complementarietat Fabrizio Rodilossi [email protected] entre modes Impressió: Gràfiques Ossó [email protected] Correcció: Glòria Farrés Castell de Castellet i La Gornal D.L. B-27.592-2013 4 de octubre de 2013 El futur de les infraestructures de transport: competència o complementarietat entre modes a jornada de treball de les Fundacions Abertis i participació del director del Port de Barcelona, José Al- Cercle d'Infraestructures al Castell de Castellet berto Carbonell, de Jaume Bonavia, director d'Alfil Lo- de Foix es va dedicar, el 2013, a les relacions de gistics, i del director de Logística de BASF, José Curado. complementarietat i de competència entre mo- Com és habitual, en el Workshop van participar també Ldes de transport. alts dirigents de les administracions competents en in- Cal recordar que aquell any la crisi econòmica era espe- fraestructures i transports, el secretari general d’Infraes- cialment intensa, i que en el camp de les infraestructu- tructures del Ministeri de Foment, Manuel Niño, el se- res tots els indicadors d'activitat assenyalaven mínims. cretari general de Territori i Mobilitat de la Generalitat, En aquest context van voler presentar experiències que Ricard Font, i el Sr. Patrick Boeuf, responsable del sector poguessin assenyalar camins de sortida al sector. -
A Comparison of RDF Query Languages
A Comparison of RDF Query Languages Peter Haase1, Jeen Broekstra2, Andreas Eberhart1, Raphael Volz1 1Institute AIFB, University of Karlsruhe, D-76128 Karlsruhe, Germany haase, eberhart, volz @aifb.uni-karlsruhe.de f 2 g Vrije Universiteit Amsterdam, The Netherlands [email protected] Abstract. The purpose of this paper is to provide a rigorous compari- son of six query languages for RDF. We outline and categorize features that any RDF query language should provide and compare the individ- ual languages along these features. We describe several practical usage examples for RDF queries and conclude with a comparison of the expres- siveness of the particular query languages. The usecases, sample data and queries for the respective languages are available on the web1. 1 Introduction The Resource Description Framework (RDF) is considered to be the most rele- vant standard for data representation and exchange on the Semantic Web. The recent recommendation of RDF has just completed a major clean up of the initial proposal [9] in terms of syntax [1], along with a clarification of the un- derlying data model [8], and its intended interpretation [5]. Several languages for querying RDF documents and have been proposed, some in the tradition of database query languages (i.e. SQL, OQL), others more closely inspired by rule languages. No standard for RDF query language has yet emerged, but the dis- cussion is ongoing within both academic institutions, Semantic Web enthusiasts and the World Wide Web Consortium (W3C). The W3C recently chartered a working group2 with a focus on accessing and querying RDF data. We present a comparison of six representative query languages for RDF, highlighting their common features and differences along general dimensions for query languages and particular requirements for RDF. -
A RPL Through RDF: Expressive Navigation in RDF Graphs
A RPL through RDF: Expressive Navigation in RDF Graphs Harald Zauner1, Benedikt Linse1,2,TimFurche1,3, and François Bry1 1 Institute for Informatics, University of Munich, Oettingenstraße 67, 80538 München, Germany 2 Thomson Reuters, Landsberger Straße 191a, 80687 München, Germany 3 Oxford University Computing Laboratory, Wolfson Building, Parks Road, Oxford, OX1 3QD, England http://rpl.pms.ifi.lmu.de/ Abstract. RPL (pronounced “ripple”) is the most expressive path lan- guage for navigating in RDF graphs proposed to date that can still be evaluated with polynomial combined complexity. RPL is a lean language well-suited for integration into RDF rule languages. This integration en- ables a limited form of recursion for traversing RDF paths of unknown length at almost no additional cost over conjunctive triple patterns. We demonstrate the power, ease, and efficiency of RPL with two appli- cations on top of the RPL Web interface. The demonstrator implements RPL by transformation to extended nested regular expressions (NREs). For these extended NREs we have implemented an evaluation algorithm with polynomial data complexity. To the best of our knowledge, this demo is the first implementation of NREs (or similarly expressive RDF path languages) with this complexity. 1Motivation With the promise of exciting “new kinds of usage scenarios”, you finally got your boss at company C to embrace linked data and connect your community forum and contact database to other online communities and FOAF profiles of your contacts. Your boss now wants to put that technology to use: “I want to cooperate with X on topic Y ! Can you get me the name of any person that works at X and that’s connected to us via people that are also interested in Y (so that they have an interest in connecting us). -
Concurrence Et Transport
Concurrences REVUE DES DROITS DE LA CONCURRENCE | COMPETITION LAW REVIEW Concurrence et transport Conférence l Concurrences N° 4-2015 www.concurrences.com Jean-François Cordet Préfet de la région Nord-Pas-de-Calais Lille Grégoire Marlot Directeur régulation Europe économie, SNCF Réseau, Paris Anne Yvrande-Billon Vice-présidente, Autorité de régulation des activités ferroviaires (ARAF), Paris Umberto Berkani Rapporteur général adjoint, Autorité de la concurrence, Paris Sylvain Justier Avocat associé, Magenta, Paris Jean-François Benevise Directeur régional, DIRECCTE du Nord-Pas-de-Calais, Lille Conférence Concurrence et transport Lille, 16 avril 2015 Institut Pasteur DISCOURS D’oUVERTURE DEUXIÈME PARTIE Jean-François Cordet Préfet de la région Nord-Pas-de-Calais Lille Enjeux et problématiques du secteur du transport PREMIÈRE PARTIE au regard du droit Concurrence et de la concurrence régulation dans L’action de l’Autorité de la concurrence dans le secteur des transports Art. Intellectuelle). Personal use of this document is authorised within the limits Intellectuelle and DRM protection. L. 335-2 Code de la Propriété L 122-5 le secteur ferroviaire Umberto Berkani Rapporteur général adjoint, Autorité de la concurrence, Paris La concurrence dans le transport ferroviaire : Enjeux et problématique Complémentarité et interaction du droit Grégoire Marlot de la concurrence et du droit sectoriel Directeur régulation Europe économie, SNCF Réseau, Paris Sylvain Justier Avocat associé, Magenta, Paris Quelles perspectives d’ouverture à la concurrence du marché du transport ferroviaire en France ? Anne Yvrande-Billon DISCOURS DE CLÔTURE Jean-François Benevise Vice-présidente, Autorité de régulation des activités ferroviaires (ARAF), Paris Directeur régional, DIRECCTE du Nord-Pas-de-Calais, Lille Concurrences + www.concurrences.com The papers of this conference délit pénalement sanctionné jusqu'à 3 ans d'emprisonnement et 300 000 € d'amende (art.