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INTEROP
1999
Springer
129views GIS» more  INTEROP 1999»
15 years 11 months ago
Interoperability in Practice: Problems in Semantic Conversion from Current Technology to OpenGIS
This work investigates the practical issue of mapping existing GIS to the OpenGIS standards. We describe the data models used in three systems (MGE, ARC/INFO and SPRING) and analys...
Gilberto Câmara, Rogério Thomé...
VTC
2008
IEEE
110views Communications» more  VTC 2008»
16 years 1 months ago
FFT Sign Search with Secondary Code Constraints for GNSS Signal Acquisition
— New GNSS signals are usually characterized by the presence of secondary codes and high data rates that can make the sign of the transmitted signal change each primary code peri...
Daniele Borio
IWANN
2005
Springer
16 years 10 days ago
Heuristic Search over a Ranking for Feature Selection
In this work, we suggest a new feature selection technique that lets us use the wrapper approach for finding a well suited feature set for distinguishing experiment classes in hig...
Roberto Ruiz, José Cristóbal Riquelm...
ECIR
2011
Springer
14 years 10 months ago
SkipBlock: Self-indexing for Block-Based Inverted List
In large web search engines the performance of Information Retrieval systems is a key issue. Block-based compression methods are often used to improve the search performance, but c...
Stéphane Campinas, Renaud Delbru, Giovanni ...
CVPR
2008
IEEE
16 years 8 months ago
Dimensionality reduction by unsupervised regression
We consider the problem of dimensionality reduction, where given high-dimensional data we want to estimate two mappings: from high to low dimension (dimensionality reduction) and f...
Miguel Á. Carreira-Perpiñán, ...