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SSDBM
2008
IEEE
177views Database» more  SSDBM 2008»
14 years 2 months ago
Prioritized Evaluation of Continuous Moving Queries over Streaming Locations
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
Kostas Patroumpas, Timos K. Sellis
OTM
2007
Springer
14 years 2 months ago
Processing Location-Dependent Queries with Location Granules
Existing approaches for the processing of location-dependent queries implicitly assume location data expressed at maximum precision (e.g., GPS). However, there exist applications w...
Sergio Ilarri, Eduardo Mena, Carlos Bobed
COMPGEOM
1997
ACM
14 years 20 days ago
Robust Proximity Queries: An Illustration of Degree-Driven Algorithm Design
Abstract. In the context of methodologies intended to confer robustness to geometric algorithms, we elaborate on the exact-computation paradigm and formalize the notion of degree o...
Giuseppe Liotta, Franco P. Preparata, Roberto Tama...
ADBIS
2010
Springer
174views Database» more  ADBIS 2010»
13 years 10 months ago
Exploiting the Semantics of Location Granules in Location-Dependent Queries
Abstract. The need for location-based services has motivated an important research effort in the efficient processing of location-dependent queries. Most of the existing approaches...
Carlos Bobed, Sergio Ilarri, Eduardo Mena
CIKM
2007
Springer
14 years 2 months ago
The role of documents vs. queries in extracting class attributes from text
Challenging the implicit reliance on document collections, this paper discusses the pros and cons of using query logs rather than document collections, as self-contained sources o...
Marius Pasca, Benjamin Van Durme, Nikesh Garera