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Searching for authors named "Stratis Viglas" – sorted by Relevance.

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  • The Case for Holistic Query Evaluation  
  • by Konstantinos Krikellas, Marcelo Cintra, Stratis D. Viglas
  • …We present the case for holistic query evaluation: a novel model for query processing by generating specific, highly optimized code at runtime, that is then compiled and executed. The model is based on the notion of embedding various query operations in a single nested-loops construct. This leads to…
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  • Rate-Based Query Optimization for Streaming Information Sources  
  • by Stratis D. Viglas, Jeffrey F. Naughton — 2002 — In Proc. of the 2002 ACM SIGMOD Intl. Conf. on Management of Data
  • …Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continues to be successful, the advent of the Internet and the need to execute queries over streaming sources requires a differen…
  • Cited by 86 (2 self) – Add To MetaCart
  • Evaluating Window Joins over Unbounded Streams  
  • by Jaewoo Kang Jeffrey, Jeffrey F. Naughton, Stratis D. Viglas — 2003 — In ICDE
  • …We investigate algorithms for evaluating sliding window joins over pairs of unbounded streams. We introduce a unittime -basis cost model to analyze the expected performance of these algorithms. Using this cost model, we propose strategies for maximizing the efficiency of processing joins in thre…
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  • 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
  • P2P, Ad Hoc and Sensor Networks – All the Different or All the Same? Working Group Summary  
  • by Peter A. Boncz, Angela Bonifati, Joos-hendrik Böse, Stefan Böttcher, Fu Berlin, Universität Paderborn, Panos Kypros, Chrysanthis Le Gruenwald, Vasco Universität Paderborn, Birgitta König-ries, Wolfgang May, Universität Jena, Universitt Göttingen, Anirban Mondal, Sebastian Obermeier, Aris Ouksel, George Samaras, Brahmananda Sapkota, Rita Steinmetz, Stratis D. Viglas
  • …Summary. Currently, data management technologies are in the process of finding their way into evolving networks, i.e. P2P, ad hoc and wireless sensor networks. We examine the properties, differences and commonalities of the different types of evolving networks, in order to enable the development of …
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