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Searching for authors named "Anastasios Kementsietsidis" – sorted by Relevance.

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  • Data sharing and querying for peer-to-peer data management systems  
  • by Anastasios Kementsietsidis — 2004 — In EDBT PhD Workshop
  • …Abstract. 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 v…
  • Cited by 1 (0 self) – Add To MetaCart
  • Data Sharing through Query Translation in Autonomous Sources  
  • by Anastasios Kementsietsidis, Marcelo Arenas — 2004 — In VLDB
  • …autonomous data sources in an environment where constraints cannot be placed on the shared contents of sources. Our solutions rely on the use of mapping tables which define how data from di#erent sources are associated. In this setting, the answer to a local query, that is, a query posed agai…
  • Cited by 4 (3 self) – Add To MetaCart
  • D.: iMONDRIAN: A visual tool to annotate and query scientific databases  
  • by Floris Geerts, Anastasios Kementsietsidis, Diego Milano — 2006 — J.W., Matthes,F.,Hatzopoulos,M.,Boehm,K.,Kemper,A.,Grust,T.,Boehm,C.(eds.) EDBT 2006. LNCS
  • …Abstract. We demonstrate iMONDRIAN, a component of the MONDRIAN annotation management system. Distinguishing features of MONDRIAN are (i) the ability to annotate sets of values (ii) the annotation-aware query algebra. On top of that, iMONDRIAN offers an intuitive visual interface to annotate and que…
  • Cited by 1 (1 self) – Add To MetaCart
  • Mondrian: Annotating and querying databases through colors and blocks  
  • by Floris Geerts, Anastasios Kementsietsidis, Diego Milano — 2006 — in ICDE ’06: Proceedings of the 22nd International Conference on Data Engineering (ICDE’06
  • …Annotations play a central role in the curation of scientific databases. Despite their importance, data formats and schemas are not designed to manage the increasing variety of annotations. Moreover, DBMS’s often lack support for storing and querying annotations. Furthermore, annotations and data ar…
  • Cited by 23 (2 self) – Add To MetaCart
  • Managing Data Mappings in the Hyperion Project  
  • by Anastasios Kementsietsidis, Marcelo Arenas, Renée J. Miller — 2003 — In Proceedings of the 19th International Conference on Data Engineering (ICDE
  • …We consider the problem of mapping data in peerto -peer systems. Such systems rely on simple value searches to locate data of interest. However, different peers may use different values to identify or describe the same data. To accommodate this, peer-to-peer systems often rely on mapping tables that…
  • Cited by 7 (1 self) – Add To MetaCart
  • Don't Mind Your Vocabulary: Data Sharing Across Heterogeneous Peers  
  • by Md. Mehedi Masud, Anastasios Kementsietsidis — 2005 — In Proc. of CoopIS
  • …Abstract. The strong dynamics of peer-to-peer networks, coupled with the diversity of peer vocabularies, makes query processing in peer database systems a very challenging task. In this paper, we propose a framework for translating expressive relational queries across heterogeneous peer databases. O…
  • Cited by 2 (1 self) – Add To MetaCart
  • Mapping Data in Peer-to-Peer Systems: Semantics and Algorithmic Issues  
  • by Anastasios Kementsietsidis, Marcelo Arenas, Renée J. Miller — 2003
  • …We consider the problem of mapping data in peer-topeer data-sharing systems. Such systems often rely on the use of mapping tables listing pairs of corresponding values to search for data residing in dierent peers. In this paper, we address semantic and algorithmic issues related to the use of mappin…
  • Cited by 70 (4 self) – Add To MetaCart
  • Rewriting Regular XPath Queries on XML Views  
  • by Wenfei Fan, Floris Geerts, Xibei Jia Anastasios Kementsietsidis — 2007 — In Proc. ICDE
  • …We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approach the problem by rewriting queries on views into equivalent queries on the underlying document, and thus avoid the overh…
  • Cited by 8 (3 self) – Add To MetaCart
  • Coordinating Peer Databases Using ECA Rules  
  • by Vasiliki Kantere Iluju, Iluju Kiringa, John Mylopoulos, Anastasios Kementsietsidis, Marcelo Arenas — 2003 — In Proc. DBISP2P 2003
  • …Peer databases are stand-alone, independently developed databases that are linked to each other through acquaintances. They each contain local data, a set of mapping tables and expressions, and a set of ECA rules that are used to exchange data among them. The set of acquaintances and peers const…
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