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PODS
2011
ACM
165views Database» more  PODS 2011»
7 years 10 months ago
Tight bounds for Lp samplers, finding duplicates in streams, and related problems
Hossein Jowhari, Mert Saglam, Gábor Tardos
PODS
2011
ACM
238views Database» more  PODS 2011»
7 years 10 months ago
Beyond simple aggregates: indexing for summary queries
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
Zhewei Wei, Ke Yi
PODS
2011
ACM
220views Database» more  PODS 2011»
7 years 10 months ago
Maximizing conjunctive views in deletion propagation
In deletion propagation, tuples from the database are deleted in order to reflect the deletion of a tuple from the view. Such an operation may result in the (often necessary) del...
Benny Kimelfeld, Jan Vondrák, Ryan Williams
PODS
2011
ACM
201views Database» more  PODS 2011»
7 years 10 months ago
Data exchange beyond complete data
In the traditional data exchange setting, source instances are restricted to be complete in the sense that every fact is either true or false in these instances. Although natural ...
Marcelo Arenas, Jorge Pérez, Juan L. Reutte...
PODS
2011
ACM
163views Database» more  PODS 2011»
7 years 10 months ago
Provenance views for module privacy
Scientific workflow systems increasingly store provenance information about the module executions used to produce a data item, as well as the parameter settings and intermediate...
Susan B. Davidson, Sanjeev Khanna, Tova Milo, Debm...
PODS
2011
ACM
229views Database» more  PODS 2011»
7 years 10 months ago
On the complexity of privacy-preserving complex event processing
Complex Event Processing (CEP) Systems are stream processing systems that monitor incoming event streams in search of userspecified event patterns. While CEP systems have been ad...
Yeye He, Siddharth Barman, Di Wang, Jeffrey F. Nau...
PODS
2011
ACM
161views Database» more  PODS 2011»
7 years 10 months ago
Querying semantic web data with SPARQL
Marcelo Arenas, Jorge Pérez
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