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SIGMOD
2001
ACM
146views Database» more  SIGMOD 2001»
14 years 7 months ago
On Supporting Containment Queries in Relational Database Management Systems
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
Chun Zhang, Jeffrey F. Naughton, David J. DeWitt, ...
EDBT
2004
ACM
133views Database» more  EDBT 2004»
14 years 7 months ago
HOPI: An Efficient Connection Index for Complex XML Document Collections
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
Ralf Schenkel, Anja Theobald, Gerhard Weikum
ICDE
2010
IEEE
428views Database» more  ICDE 2010»
14 years 7 months ago
Supporting Top-K Keyword Search in XML Databases
Keyword search is considered to be an effective information discovery method for both structured and semistructured data. In XML keyword search, query semantics is based on the con...
Liang Jeff Chen, Yannis Papakonstantinou
ICDE
2010
IEEE
263views Database» more  ICDE 2010»
14 years 7 months ago
Managing Uncertainty of XML Schema Matching
Abstract-- Despite of advances in machine learning technologies, a schema matching result between two database schemas (e.g., those derived from COMA++) is likely to be imprecise. ...
Reynold Cheng, Jian Gong, David W. Cheung
DOCENG
2006
ACM
14 years 1 months ago
Comparing XML path expressions
XPath is the standard declarative language for navigating XML data and returning a set of matching nodes. In the context of XSLT/XQuery analysis, query optimization, and XML type ...
Pierre Genevès, Nabil Layaïda