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Schema Level and Data Level Mapping Composition

Mehedi Masud, Md Anisur Rahman
2013 International Journal of Computer Applications  
Schema mappings and data mappings constitute essential building blocks of data integration, data exchange and peer-to-peer data sharing systems.  ...  In this paper we consider the semantics of bi-level mapping that combines the schema-level and data-level mappings.  ...  AND CONCLUSION This paper presented a model of data sharing system and proposed mapping semantics, called bi-level mapping and its composition, combining the schema-level and the data-level mappings necessary  ... 
doi:10.5120/14473-2774 fatcat:lfvxm7jejjfwvftdudc2arz74q

The Piazza peer data management project

Igor Tatarinov, Peter Mork, Zachary Ives, Jayant Madhavan, Alon Halevy, Dan Suciu, Nilesh Dalvi, Xin (Luna) Dong, Yana Kadiyska, Gerome Miklau
2003 SIGMOD record  
Piazza is a peer data management system that enables sharing heterogeneous data in a distributed and scalable way.  ...  Then, users formulate queries over their preferred schema, and a query answering system expands recursively any mappings relevant to the query, retrieving data from other peers.  ...  As in peer-to-peer data sharing systems, we also allow any node to join the system and contribute resources (schemas, mappings, data, or computation) that improve the overall environment.  ... 
doi:10.1145/945721.945732 fatcat:im52arugnzarjdnakkrkroeoza

Mapping Composition Combining Schema and Data Level Heterogeneity in Peer Data Sharing Systems

Md. Rahman, Mehedi Masud
2013 Applied Mathematics & Information Sciences  
The mapping semantics that combines the schema-level and the data-level mappings is called bi-level mappings.  ...  Composition of mappings between peers has several computational advantages in a peer data management system, such as yielding more efficient query translation, pruning redundant paths, and better query  ...  Conclusion This paper presented a mapping semantics, called bilevel mapping, combining the schema-level and the data-level mappings necessary for resolving heterogeneity among peers in a peer data management  ... 
doi:10.12785/amis/070111 fatcat:jjktzfq6efbttovbbiwl3k5yue

Structured Query Translation in Peer to Peer Database Sharing Systems

Mehedi Masud, Fazel Keshtkar
2009 Data Science Journal  
This paper proposes a query translation mechanism between peers where peers are acquainted in data sharing systems through data-level mappings for sharing data.  ...  This paper presents a query translation mechanism between heterogeneous peers in Peer to Peer Database Sharing Systems (PDSSs). A PDSS combines a database management system with P2P functionalities.  ...  In the future, we would like to propose an approach to query translation that combines schema-level and data-level mappings and implement the algorithm in a large peer database sharing system. 7 Figure  ... 
doi:10.2481/dsj.008-011 fatcat:on7ol3lmrfh3zet5ppnj3cj3l4

Data Sharing and Querying for Peer-to-Peer Data Management Systems [chapter]

Anastasios Kementsietsidis
2004 Lecture Notes in Computer Science  
In this work, we investigate mechanisms to support data sharing and querying in a peer-to-peer data management system, that is, a peer-to-peer system where each peer manages its own data.  ...  To support data sharing, we propose the use of mapping tables which list pairs of corresponding data values that reside in different peers.  ...  system with its own schema and data.  ... 
doi:10.1007/978-3-540-30192-9_17 fatcat:o52rbfrrkvecndzlupotagirnq

Semantic Integration of Collection Description

Irene Lourdi, Christos Papatheodorou, Martin Doerr
2009 D-Lib Magazine  
In this paper, we discuss the use of ontologies for data integration. We consider two different settings depending on the system architecture: central and peer-to-peer data integration.  ...  , and in mapping support.  ...  Each peer represents an autonomous information system and connects to a super-peer via semantic mappings.  ... 
doi:10.1045/july2009-papatheodorou fatcat:z6rw5rjcabaz5jjg6jvpgsgs74

Collaborative Business Intelligence [chapter]

Stefano Rizzi
2012 Lecture Notes in Business Information Processing  
, federative approaches, where the integration is virtual and based on a global schema, and peer-to-peer approaches, that do not rely on a global schema to integrate the component data warehouses.  ...  Then we outline a new peer-to-peer framework, called Business Intelligence Network, where peers expose querying functionalities aimed at sharing business information for the decision-making process.  ...  combine the data [6] .  ... 
doi:10.1007/978-3-642-27358-2_9 fatcat:dcxgdkaz2rdm7edfac5tcjrc4i

A Semantic Overlay Network for P2P Schema-Based Data Integration

C. Comito, S. Patarin, D. Talia
2006 11th IEEE Symposium on Computers and Communications (ISCC'06)  
In PARIS, the combination of decentralized semantic data integration with gossip-based (unstructured) overlay topology management and (structured) distributed hash tables provides the required level of  ...  flexibility, adaptability and scalability, and still allows to perform rich queries on a number of autonomous data sources.  ...  These systems only provide data sharing at file level, and a limited query language, usually based on file name search.  ... 
doi:10.1109/iscc.2006.19 dblp:conf/iscc/ComitoPT06 fatcat:mlf6flz6ivdhnfvghdes3r2tf4

A New Document Sharing System Based on a Semantic Hierarchical Peer-to-Peer Network

Anis Ismail, Aziz Barbar, Mohammad Hajjar, Mohamed Quafafou
2017 International Journal of Engineering and Technology  
Peer-to-Peer (P2P) applications have been widely used in last years. A P2P application is usually used for sharing Music, Movies, Games, and other files.  ...  We have developed a P2P application based on community architecture structured around Peers and Super-Peers.  ...  ACKNOWLEDGMENT This work has been done as part of the project "Extraction des Communauté s dans les ré seaux sé mantiques pairs-à -pairs: Simulation et évaluation" at the Lebanese University.  ... 
doi:10.7763/ijet.2017.v9.960 fatcat:yxy6ivoikjdahlzwmnc3ilikxi

A New Document Sharing System Based on a Semantic Hierarchical Peer-to-Peer Network

Anis Ismail, Aziz Barbar, Mohammad Hajjar, Mohamed Quafafou
2017 International Journal of Information and Education Technology  
Peer-to-Peer (P2P) applications have been widely used in last years. A P2P application is usually used for sharing Music, Movies, Games, and other files.  ...  We have developed a P2P application based on community architecture structured around Peers and Super-Peers.  ...  ACKNOWLEDGMENT This work has been done as part of the project "Extraction des Communauté s dans les ré seaux sé mantiques pairs-à -pairs: Simulation et évaluation" at the Lebanese University.  ... 
doi:10.18178/ijiet.2017.7.5.901 fatcat:stp2pkqfxfb4jd23cbj6i5abtu

The Piazza Peer Data Management System

A.Y. Halevy, Z.G. Ives, J. Madhavan, P. Mork, D. Suciu, I. Tatarinov
2004 IEEE Transactions on Knowledge and Data Engineering  
PDMSs represent a natural step beyond data integration systems, replacing their single logical schema with an interlinked collection of semantic mappings between peers' individual schemas.  ...  PDMSs represent a natural step beyond data integration systems, replacing their single logical schema with an interlinked collection of semantic mappings between peers' individual schemas.  ...  ACKNOWLEDGMENTS This work was funded in part by US National Science Foundation ITR grants IIS-0205635 and IIS-9985114 and a gift from Microsoft Research.  ... 
doi:10.1109/tkde.2004.1318562 fatcat:jbp5xpw7gveqldv2elpfefpjbu

Self-Organizing Schema Mappings in the GridVine Peer Data Management System

Philippe Cudré-Mauroux, Suchit Agarwal, Adriana Budura, Parisa Haghani, Karl Aberer
2007 Very Large Data Bases Conference  
GridVine is a Peer Data Management System based on a decentralized access structure.  ...  Built following the principle of data independence, it separates a logical layer -where data, schemas and mappings are managed -from a physical layer consisting of a structured Peer-to-Peer network supporting  ...  We insert data, schemas and a set of manually created mappings in a network of several hundreds of peers.  ... 
dblp:conf/vldb/Cudre-MaurouxABHA07 fatcat:tjbaqy52b5cobnaudp4d3podjq

Don't Mind Your Vocabulary: Data Sharing Across Heterogeneous Peers [chapter]

Md. Mehedi Masud, Iluju Kiringa, Anastasios Kementsietsidis
2005 Lecture Notes in Computer Science  
The cornerstone of our approach is the use of both syntax and instance level schema mappings that each peer constructs and shares with other peers.  ...  The proposal combines both syntax and instance level mappings into a more general framework for query translation across heterogeneous boundaries.  ...  A peer database system (PDBS) consists of a peer or node of a P2P network which has been augmented both with a conventional data base management system and an interoperability layer that enables data sharing  ... 
doi:10.1007/11575771_20 fatcat:uq5pi7ugxfdstlajbeivt7whnu

Thematic Schema Building for Mediation-based Peer-to-Peer Architecture

Nicolas Lumineau, Anne Doucet, Stéphane Gançarski
2006 Electronical Notes in Theoretical Computer Science  
Recently, mediation tools and peer-to-peer systems have allowed an important evolution for data sharing.  ...  Mediators are now mature techniques to share structured and heterogeneous data distributed through a reasonable number of nodes.  ...  Peer-to-Peer Data Sharing Since several years, many scientific projects promote Peer Data Management Systems [3] , which integrate database management and peer-to-peer systems, to study how peer-to-peer  ... 
doi:10.1016/j.entcs.2005.11.032 fatcat:sxkhmgx53nacpnbpo5xa4phdve

Crossing the Structure Chasm

Alon Y. Halevy, Oren Etzioni, AnHai Doan, Zachary G. Ives, Jayant Madhavan, Luke K. McDowell, Igor Tatarinov
2003 Conference on Innovative Data Systems Research  
system, in which a web of data is created by establishing local mappings between schemas, and query answering is done over the transitive closure of these mappings; (3) a novel set of tools that are based  ...  REVERE includes three innovations: (1) a data creation environment that entices people to structure data and enables them to do it rapidly; (2) a data sharing environment, based on a peer data management  ...  components of the REVERE system.  ... 
dblp:conf/cidr/HalevyED03 fatcat:e6eo5x4jwrcpnaqgw35ycigzsi
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