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Searching for authors named "Leonidas Galanis" – sorted by Relevance.

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  • et al  
  • by Leonidas Galanis, David J. Dewitt — 2000 — In Proc Int Conf Intell Syst Mol Biol
  • …Abstract. Computing aggregates over distributed data sets constitutes an interesting class of distributed queries. Recent advances in peer-to-peer discovery of data sources and query processing techniques have made such queries feasible and potentially more frequent. The concurrent execution of mult…
  • Cited by 1 (0 self) – Add To MetaCart
  • Processing Queries in a Large Peer-to-Peer System  
  • by Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, David J. Dewitt — 2003 — In Proceedings of CAISE’03
  • …Abstract. While current search engines seem to easily handle the size of the data available on the Internet, they cannot provide fresh results. The most up-to-date data always resides on the data sources. Efficiently interconnecting data providers, however, is not an easy problem. Peer-to-peer compu…
  • Cited by 13 (1 self) – Add To MetaCart
  • Locating data sources in large distributed systems  
  • by Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, David J. Dewitt — 2003 — In VLDB
  • …Querying large numbers of data sources is gaining importance due to increasing numbers of independent data providers. One of the key challenges is executing queries on all relevant information sources in a scalable fashion and retrieving fresh results. The key to scalability is to send queries only …
  • Cited by 32 (0 self) – Add To MetaCart
  • Locating Data Sources in Large Distributed Systems  
  • by Leonidas Galanis Yuan, Yuan Wang, Shawn R. Jeffery, David J. Dewitt — 2003 — In VLDB
  • …Querying large numbers of data sources is gaining importance due to increasing numbers of independent data providers. One of the key challenges is executing queries on all relevant information sources in a scalable fashion and retrieving fresh results. The key to scalability is to send queries…
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  • Following the paths of XML Data: An algebraic framework for XML query evaluation  
  • by Leonidas Galanis, Efstratios Viglas, David J. DeWitt, Jeffrey. F. Naughton, David Maier — 2001
  • …This paper introduces an algebraic framework for expressing and evaluating queries over XML data. It presents the underlying assumptions of the framework, describes the input and output of the algebraic operators, and defines these operators and their semantics. It evaluates the framework with reg…
  • Cited by 12 (0 self) – Add To MetaCart
  • The Niagara Internet Query System  
  • by Jeffrey Naughton, David Dewitt, David Maier, Ashraf Aboulnaga, Jianjun Chen, Leonidas Galanis, Jaewoo Kang, Rajasekar Krishnamurthy, Qiong Luo, Naveen Prakash, Ravishankar Ramamurthy, Jayavel Shanmugasundaram, Feng Tian, Kristin Tufte, Stratis Viglas — 2001 — IEEE Data Engineering Bulletin
  • …Recently, there has been a great deal of research into XML query languages to enable the execution of database-style queries over XML files. However, merely being an XML query-processing engine does not render a system suitable for querying the Internet. A useful system must provide mechanisms to (a…
  • Cited by 51 (8 self) – Add To MetaCart
  • Mixed Mode XML Query Processing  
  • by Alan Halverson, Josef Burger, Leonidas Galanis, Ameet Kini, Rajasekar Krishnamurthy, Ajith Nagaraja Rao, Feng Tian, Stratis D. Viglas, Yuan Wang, Jeffrey F. Naughton, David J. DeWitt — 2003 — In VLDB
  • …Querying XML documents typically involves both tree-based navigation and pattern matching similar to that used in structured information retrieval domains.…
  • Cited by 13 (0 self) – Add To MetaCart
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