Prototypes for building the P2P network

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1 NeP4B Networked Peers For Business WP 3 Task T 3.5 Deliverable P3.5.1 s for building the P2P network (Final, 30/06/2009) Abstract This deliverable describes the non integrated prototype releases of semantic p2p network. For each one of the four components a technical sheet is provided, while an install manual a user manual for each one are available within the consortium. The detailed of the semantic p2p network is contained within WP4 deliverables.

2 Document information Document ID P3.5.1 Keywords Software prototype Classification FINAL Date of reference 30/06/2009 Distribution level NeP4B Consortium Editor Maurizio Vincini UniMo Authors Version history Date Version Description 30/06/2009 FINAL 1.0 Final version 20/06/2009 DRAFT 0.5 Draft version Pagina 2 di 14 P3.5.1 s for building the P2P network Version 1.0

3 Contents 1 EXECUTIVE SUMMARY P A SYSTEM FOR SECURE REPUTATION DISTRIBUTION MECHANISM P A SYSTEM FOR THE DISCOVER OF SEMANTIC MAPPINGS AMONG PEERS P A SYSTEM FOR THE DISTRIBUTED QUERY SUPPORT FOR PROCESSING SEMANTIC QUERIES OVER THE P2P NETWORK P THE DISTRIBUTED VERSION OF THE WSMO DISCOVERY ENGINE QOS- AWARE Pagina 3 di 14 P3.5.1 s for building the P2P network Version 1.0

4 1 Executive Summary This deliverable describes the non integrated prototype releases of semantic p2p network. For each one of the four components a technical sheet is provided, while an install manual a user manual for each one are available within the consortium. The detailed of the semantic p2p network is contained within WP4 deliverables. Pagina 4 di 14 P3.5.1 s for building the P2P network Version 1.0

5 2 P A system for secure reputation distribution mechanism P A system for secure reputation distribution mechanism Release Date 01/09/09 Responsible Unit Involved Units Authors Contact Author CEFRIEL CEFRIEL Alessio Carenini (alessio.carenini@cefriel.it) Alessio Carenini (alessio.carenini@cefriel.it) Development Environment Programming Languages Compilers Java, Python Java Reference Architecture Run-Time Environment Multi-platform Browser User Interface Comm-line interface Data Input Data Output Interaction with other prototypes P The current prototype is a non-integrated version Pagina 5 di 14 P3.5.1 s for building the P2P network Version 1.0

6 Interaction with other Peer Network prototypes Pagina 6 di 14 P3.5.1 s for building the P2P network Version 1.0

7 3 P A system for the discover of semantic mappings among peers P A system for the discover of semantic mappings among peers Release Date Responsible Unit Involved Units IsGroup - Unimo IsGroup - Unimo Authors Contact Author Development Environment Rita Lenzi Federica Mreoli Riccardo Martoglia rita.lenzi@unimo.it mreoli.federica@unimo.it riccardo.martoglia@unimo.it Programming Languages Compilers Windows Java, SQL, SPARQL jdk-6u14-windows-i586 Reference Architecture Run-Time Environment Windows Browser User Interface Data Input Data Output Class SmartMatch contains the main method Peer s RDF schemas contained into text files collected into the same folder. Such folder path must be indicated as parameter at the beginning of SmartMatch class files must have the extension.rdfa An XML file which collects obtained results. It is articulated into two different sections: the first one reports schemas' information while the other one the mapping between pairs of them. The final result is presented in the file starting from matching between RDF classes, followed by matching between properties finally between a property in source schema a path in the target one. All such results are associated to score representing the semantic similarity between the two mapping elements. Interaction with other prototypes P The interface is represented by the XML file containing mapping results. Mapping pairs (two classes, two properties or a property a path together Pagina 7 di 14 P3.5.1 s for building the P2P network Version 1.0

8 with their similarity value) are read by the query reformulation module in order to route the query towards the most semantic related peer to rewrite it in terms of such peer schema. Interaction with other Peer Network prototypes P A system for the discover of semantic mappings among peers Release Date Responsible Unit Involved Units Authors Contact Author ISTI-CNR ISTI-CNR Claudio Gennaro Matteo Mordacchini Fabrizio Falchi claudio.gennaro@isti.cnr.it matteo.mordacchini@isti.cnr.it Development Environment Programming Languages Compilers Windows/Linux C++/Java GCC 4.3.3/jdk1.6.0_03 Reference Architecture Run-Time Environment Windows Browser User Interface Data Input Data Output Class ImageIndex contains the main method. The file filename.txt containing in each line the address of the WSDLs of MILOS repositories to be indexed, the number of pivots to use during the indexing phase. A binary filename.idx file which collects the index statistics obtained from multimedia files to be used by the P Interaction with other prototypes P Pagina 8 di 14 P3.5.1 s for building the P2P network Version 1.0

9 The interface is represented by the binary file filename.idx containing indexing results. The generated file is the used by used by the prototype P in order to route rewrite the semantic/multimedia queries. Interaction with other Peer Network prototypes P This index file is generated by querying all the instances of the P (A system for aggregate querying data sources multimedia sources) in order to generate the global statics of the multimedia data stored in the semantic peer. Pagina 9 di 14 P3.5.1 s for building the P2P network Version 1.0

10 4 P A system for the distributed query support for processing semantic queries over the P2P network P A system for the distributed query support for processing semantic queries over the P2P network Release Date Responsible Unit Involved Units ISTI-CNR IsGroup Unimo ISTI - CNR Authors Contact Author Development Environment Rita Lenzi Federica Mreoli Riccardo Martoglia Claudio Gennaro Matteo Mordacchini rita.lenzi@unimo.it mreoli.federica@unimo.it riccardo.martoglia@unimo.it claudio.gennaro@isti.cnr.it matteo.mordacchini@isti.cnr.it Programming Languages Compilers Windows Java, SPARQL jdk-6u14-windows-i586 Reference Architecture Run-Time Environment Windows Browser User Interface Since the semantic peers (WP2) accept queries written in OQL I 3, the first release of this prototype will work in st-alone modality, i.e., it will only generate a textual file with the rewritten queries in SPARQL for each peer involved in query execution. As soon as a SPARQL to OQL I 3 translator will be made available, the prototype will be integrated with the semantic peers. The prototype interface is newquery(int peer, String sparqlquery) that accepts a query written in SPARQL the first peer to query. It returns an array of strings containing a set of rows with the following structure: First element of a row: peer identifier i Pagina 10 di 14 P3.5.1 s for building the P2P network Version 1.0

11 Second element of a row: query SPARQL rewritten for the peer i Third element of a line: global score of the peer i Data Input Data Output Interaction with other prototypes P This prototype depends on the semantic matching P prototype because the query routing reformulation are based on a mapping between involved peers schemas. Mapping pairs, which comprehend class matching, property matching property-path matching together with their similarity values, are read from the XML file returned by such prototype. P This prototype depends on the multimedia index provided by P represented by a binary file with idx extension. This file collects all the statistics of the multimedia files contained in the peers of the network it is necessary for helping this prototype finding the peers the best match the query. Interaction with other Peer Network prototypes Pagina 11 di 14 P3.5.1 s for building the P2P network Version 1.0

12 5 P The distributed version of the WSMO Discovery Engine QoS-aware P The distributed version of the WSMO Discovery Engine QoS-aware Release Date 01/09/09 Responsible Unit Involved Units Authors Contact Author CEFRIEL CEFRIEL Alessio Carenini Alessio Carenini (alessio.carenini@cefriel.it) Development Environment Programming Languages Compilers Java Sun Java 1.5 compiler Reference Architecture Run-Time Environment Multi platform Browser User Interface Data Input Data Output Application library WSML files Evaluation Scenario Java object Interaction with other prototypes P The current prototype is a non-integrated version Pagina 12 di 14 P3.5.1 s for building the P2P network Version 1.0

13 Interaction with other Peer Network prototypes Pagina 13 di 14 P3.5.1 s for building the P2P network Version 1.0

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Toward a Unified View of Data and Services

Semantic Data & Service Integration Workshop,Berlin, Toward a Unified View of Data and Services Carlo Batini Matteo Palmonari Andrea Maurino University of Milan-Bicocca Italy Sonia Bergamaschi Francesco