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APN
2010
Springer
14 years 8 months ago
Learning Workflow Petri Nets
Workflow mining is the task of automatically producing a workflow model from a set of event logs recording sequences of workflow events; each sequence corresponds to a use case or ...
Javier Esparza, Martin Leucker, Maximilian Schlund
RWEB
2009
Springer
15 years 4 months ago
Logical Foundations of XML and XQuery
XML is the underlying representation formalism of much web-data. Thus to reason about web-data essentially boils down to reasoning about data in XML format. In this course the stud...
Maarten Marx
ICDE
2007
IEEE
220views Database» more  ICDE 2007»
15 years 11 months ago
Structural Selectivity Estimation for XML Documents
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
Damien K. Fisher, Sebastian Maneth
ICDE
1997
IEEE
101views Database» more  ICDE 1997»
15 years 11 months ago
Selectivity Estimation in the Presence of Alphanumeric Correlations
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Min Wang, Jeffrey Scott Vitter, Balakrishna R. Iye...
SIGMOD
2009
ACM
192views Database» more  SIGMOD 2009»
15 years 10 months ago
Scalable join processing on very large RDF graphs
With the proliferation of the RDF data format, engines for RDF query processing are faced with very large graphs that contain hundreds of millions of RDF triples. This paper addre...
Thomas Neumann, Gerhard Weikum