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230
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GIS
2005
ACM
16 years 4 months ago
Dimension-refined topological predicates
Topological predicates, as derived from the 9-intersection model, have been widely recognized in GIS, spatial database systems, and many other geo-related disciplines. They are ba...
Mark McKenney, Alejandro Pauly, Reasey Praing, Mar...
PODS
2009
ACM
134views Database» more  PODS 2009»
16 years 4 months ago
Equivalence of nested queries with mixed semantics
We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
David DeHaan
143
Voted
EDBT
2006
ACM
194views Database» more  EDBT 2006»
16 years 3 months ago
Hermes - A Framework for Location-Based Data Management
The aim of this paper is to demonstrate Hermes, a robust framework capable of aiding a spatio-temporal database developer in modeling, constructing and querying a database with dyn...
Nikos Pelekis, Yannis Theodoridis, Spyros Vosinaki...
CLEANDB
2006
ACM
113views Database» more  CLEANDB 2006»
15 years 9 months ago
Column Heterogeneity as a Measure of Data Quality
Data quality is a serious concern in every data management application, and a variety of quality measures have been proposed, including accuracy, freshness and completeness, to ca...
Bing Tian Dai, Nick Koudas, Beng Chin Ooi, Divesh ...
HASKELL
2006
ACM
15 years 9 months ago
User-level transactional programming in Haskell
Correct handling of concurrently accessed external resources is a demanding problem in programming. The standard approaches rely on database transactions or concurrency mechanisms...
Peter Thiemann