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SIGMOD
2007
ACM
144views Database» more  SIGMOD 2007»
14 years 9 months ago
The TopX DB&IR engine
This paper proposes a demo of the TopX search engine, an extensive framework for unified indexing, querying, and ranking of large collections of unstructured, semistructured, and ...
Martin Theobald, Ralf Schenkel, Gerhard Weikum
FROCOS
2007
Springer
14 years 3 months ago
Languages Modulo Normalization
Abstract. We propose a new class of tree automata, called tree automata with normalization (TAN). This framework extends equational tree automata, and improved the results of them:...
Hitoshi Ohsaki, Hiroyuki Seki
MFCS
2004
Springer
14 years 2 months ago
Complexity of Decision Problems for Simple Regular Expressions
We study the complexity of the inclusion, equivalence, and intersection problem for simple regular expressions arising in practical XML schemas. These basically consist of the conc...
Wim Martens, Frank Neven, Thomas Schwentick
SYRCODIS
2008
184views Database» more  SYRCODIS 2008»
13 years 10 months ago
Towards Cost-based Query Optimization in Native XML Database Management Systems
In the last few years, XML became a de-facto standard for the exchange of structured and semi-structured data. The database research community took this development into account b...
Andreas M. Weiner, Christian Mathis, Theo Här...
XIMEP
2005
ACM
106views Database» more  XIMEP 2005»
14 years 2 months ago
Combining a Publish and Subscribe Collaboration Architecture with XQuery Approaches
Markup languages, representations, schemas, and tools have significantly increased the ability for organizations to share their information. Languages such as the Extensible Marku...
M. Brian Blake, David H. Fado, Gregory A. Mack