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SIGMOD
2002
ACM
119views Database» more  SIGMOD 2002»
14 years 10 months ago
Rate-based query optimization for streaming information sources
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 continue...
Stratis Viglas, Jeffrey F. Naughton
BNCOD
2003
138views Database» more  BNCOD 2003»
13 years 11 months ago
Aggregate Table-Driven Querying via Navigation Ontologies in Distributed Statistical Databases
In this paper we describe a query paradigm based on ontologies, aggregate table-driven querying and expansion of QBE. It has two novel features: visually specifying aggregate table...
Yaxin Bi, David A. Bell, Joanne Lamb
SIGMOD
2003
ACM
140views Database» more  SIGMOD 2003»
14 years 10 months ago
A Comprehensive XQuery to SQL Translation using Dynamic Interval Encoding
The W3C XQuery language recommendation, based on a hierarchical and ordered document model, supports a wide variety of constructs and use cases. There is a diversity of approaches...
David DeHaan, David Toman, Mariano P. Consens, M. ...
ER
2007
Springer
95views Database» more  ER 2007»
14 years 4 months ago
Providing Semantically Equivalent, Complete Views for Multilingual Access to Integrated Data
Today, there are several approaches supporting an integrated processing of XML and (object-)relational data sources. However, each of these approaches favors a single data model f...
Iryna Kozlova, Norbert Ritter, Martin Husemann
EDBTW
2006
Springer
14 years 2 months ago
Hash-Based Structural Join Algorithms
Abstract. Algorithms for processing Structural Joins embody essential building blocks for XML query evaluation. Their design is a difficult task, because they have to satisfy many ...
Christian Mathis, Theo Härder