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SIGMOD
2009
ACM
191views Database» more  SIGMOD 2009»
16 years 7 months ago
Scalable skyline computation using object-based space partitioning
The skyline operator returns from a set of multi-dimensional objects a subset of superior objects that are not dominated by others. This operation is considered very important in ...
Shiming Zhang, Nikos Mamoulis, David W. Cheung
SIGMOD
2007
ACM
151views Database» more  SIGMOD 2007»
16 years 7 months ago
The case for a wide-table approach to manage sparse relational data sets
A "sparse" data set typically has hundreds or even thousands of attributes, but most objects have non-null values for only a small number of these attributes. A popular ...
Eric Chu, Jennifer L. Beckmann, Jeffrey F. Naughto...
PODS
2001
ACM
85views Database» more  PODS 2001»
16 years 7 months ago
On XML Integrity Constraints in the Presence of DTDs
The paper investigates XML document speci cations with DTDs and integrity constraints, such as keysand foreign keys. We study the consistency problem of checking whether a given s...
Wenfei Fan, Leonid Libkin
EDBT
2008
ACM
146views Database» more  EDBT 2008»
16 years 7 months ago
Attribute selection in multivariate microaggregation
Microaggregation is one of the most employed microdata protection methods. The idea is to build clusters of at least k original records, and then replace them with the centroid of...
Javier Herranz, Jordi Nin, Vicenç Torra
ICSE
2003
IEEE-ACM
16 years 7 months ago
From HCI to Software Engineering and Back
Methods to assess and ensure system usability are becoming increasingly important as market edge becomes less dependent on function and more dependent on ease of use, and as recog...
José Creissac Campos, Michael D. Harrison