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SEMWEB
2010
Springer
14 years 7 months ago
Combining Approximation and Relaxation in Semantic Web Path Queries
We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...
Alexandra Poulovassilis, Peter T. Wood
VLDB
1999
ACM
188views Database» more  VLDB 1999»
15 years 2 months ago
SPIRIT: Sequential Pattern Mining with Regular Expression Constraints
Discovering sequential patterns is an important problem in data mining with a host of application domains including medicine, telecommunications, and the World Wide Web. Conventio...
Minos N. Garofalakis, Rajeev Rastogi, Kyuseok Shim
JDWM
2006
104views more  JDWM 2006»
14 years 9 months ago
Navigation Rules for Exploring Large Multidimensional Data Cubes
Navigating through multidimensional data cubes is a nontrivial task. Although On-Line Analytical Processing (OLAP) provides the capability to view multidimensional data through ro...
Navin Kumar, Aryya Gangopadhyay, George Karabatis,...
PLDI
1992
ACM
15 years 1 months ago
Debugging Optimized Code with Dynamic Deoptimization
: SELF's debugging system provides complete source-level debugging (expected behavior) with globally optimized code. It shields the debugger from optimizations performed by th...
Urs Hölzle, Craig Chambers, David Ungar
ICDE
2007
IEEE
159views Database» more  ICDE 2007»
15 years 11 months ago
The Multi-Relational Skyline Operator
Most of the existing work on skyline query has been extensively used in decision support, recommending systems etc, and mainly focuses on the efficiency issue for a single table. ...
Wen Jin, Martin Ester, Zengjian Hu, Jiawei Han