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» Database and Information Retrieval Techniques for XML
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VLDB
2008
ACM
178views Database» more  VLDB 2008»
14 years 8 months ago
The Bdual-Tree: indexing moving objects by space filling curves in the dual space
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...
Man Lung Yiu, Yufei Tao, Nikos Mamoulis
IDEAS
2006
IEEE
109views Database» more  IDEAS 2006»
14 years 1 months ago
Collaborative Filtering Process in a Whole New Light
Collaborative Filtering (CF) Systems are gaining widespread acceptance in recommender systems and ecommerce applications. These systems combine information retrieval and data mini...
Panagiotis Symeonidis, Alexandros Nanopoulos, Apos...
MIDDLEWARE
2005
Springer
14 years 1 months ago
Adaptive query processing in mobile environment
These last years, the evolution of nomadic terminals and mobile networks has yield to the development of the ubiquitous computing. In this context, actual query evaluation and opt...
Hocine Grine, Thierry Delot, Sylvain Lecomte
IJCV
2007
211views more  IJCV 2007»
13 years 7 months ago
The CLEF 2005 Automatic Medical Image Annotation Task
In this paper, the automatic annotation task of the 2005 CLEF cross-language image retrieval campaign (ImageCLEF) is described. This paper focuses on the database used, the task s...
Thomas Deselaers, Henning Müller, Paul Clough...
DATESO
2009
119views Database» more  DATESO 2009»
13 years 5 months ago
Efficiency Improvement of Narrow Range Query Processing in R-tree
Indexing methods for efficient processing of multidimensional data are very requested in many fields, like geographical information systems, drawing documentations etc. Well-known ...
Peter Chovanec, Michal Krátký