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» Towards Declarative Queries on Adaptive Data Structures
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ICDE
2004
IEEE
137views Database» more  ICDE 2004»
14 years 8 months ago
Selectivity Estimation for XML Twigs
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...
Neoklis Polyzotis, Minos N. Garofalakis, Yannis E....
EXACT
2009
13 years 5 months ago
Towards the Explanation of Workflows
Across many fields involving complex computing, software systems are being augmented with workflow logging functionality. The log data can be effectively organized using declarativ...
James Michaelis, Li Ding, Deborah L. McGuinness
SIGMOD
2003
ACM
96views Database» more  SIGMOD 2003»
14 years 7 months ago
Toward network data independence
A number of researchers have become interested in the design of global-scale networked systems and applications. Our thesis here is that the database community's principles a...
Joseph M. Hellerstein
IDEAS
2003
IEEE
96views Database» more  IDEAS 2003»
14 years 23 days ago
Evaluating Nested Queries on XML Data
In the past few years, much attention has been paid to the study of semistructured data, i.e., data with irregular, possibly unstable, and rapidly changing structure, and, in part...
Carlo Sartiani
ICDE
2009
IEEE
156views Database» more  ICDE 2009»
14 years 9 months ago
Distributed Structural Relaxation of XPath Queries
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...
Georgia Koloniari, Evaggelia Pitoura