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» The Semantics of Extended SOFL
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WWW
2004
ACM
14 years 10 months ago
Index structures and algorithms for querying distributed RDF repositories
A technical infrastructure for storing, querying and managing RDF data is a key element in the current semantic web development. Systems like Jena, Sesame or the ICS-FORTH RDF Sui...
Heiner Stuckenschmidt, Richard Vdovjak, Geert-Jan ...
KDD
2006
ACM
175views Data Mining» more  KDD 2006»
14 years 9 months ago
A mixture model for contextual text mining
Contextual text mining is concerned with extracting topical themes from a text collection with context information (e.g., time and location) and comparing/analyzing the variations...
Qiaozhu Mei, ChengXiang Zhai
CHI
2003
ACM
14 years 9 months ago
Repairing usability problems identified by the cognitive walkthrough for the web
Methods for identifying usability problems in web page designs should ideally also provide practical methods for repairing the problems found. Blackmon et al. [2] proved the usefu...
Marilyn Hughes Blackmon, Muneo Kitajima, Peter G. ...
VLDB
2001
ACM
104views Database» more  VLDB 2001»
14 years 9 months ago
Global transaction support for workflow management systems: from formal specification to practical implementation
In this paper, we present an approach to global transactionmanagementinworkflowenvironments.Thetransaction mechanism is based on the well-known notion of compensation, but extended...
Paul W. P. J. Grefen, Jochem Vonk, Peter M. G. Ape...
PODS
2008
ACM
204views Database» more  PODS 2008»
14 years 9 months ago
Annotated XML: queries and provenance
We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...
J. Nathan Foster, Todd J. Green, Val Tannen