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212
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MDM
2009
Springer
16 years 1 months ago
2009
Springer
Indoor navigation highly depends on context and requires flexible data structures to support the many use cases and configurations. For example, an indoor navigation system must c...
175
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SIGIR
2009
ACM
16 years 1 months ago
2009
ACM
Long queries frequently contain many extraneous terms that hinder retrieval of relevant documents. We present techniques to reduce long queries to more effective shorter ones tha...
128
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PERVASIVE
2010
Springer
16 years 1 months ago
2010
Springer
It has been considered a fact that GPS performs too poorly inside buildings to provide usable indoor positioning. We analyze results of a measurement campaign to improve on the und...
165
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ICASSP
2008
IEEE
16 years 1 months ago
2008
IEEE
We pose the problem of tracing traitors, who have colluded to circumvent a multimedia fingerprinting system, as a sparse underdetermined linear problem. We propose a range of det...
153
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ICASSP
2008
IEEE
16 years 1 months ago
2008
IEEE
The conventional method of generating a basis that is optimally adapted (in MSE) for representation of an ensemble of signals is Principal Component Analysis (PCA). A more ambitio...