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» Ranking in Spatial Databases

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ICASSP
2011
IEEE

173views Signal Processing» more ICASSP 2011»

Multi-rank processing for passive ranging in underwater acoustic environments subject to spatial coherence loss

12 years 11 months ago

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In this work we derive the maximum likelihood estimator for passive wavefront curvature ranging systems operating in environments subject to a spatial coherence loss. As a consequ...

Hongya Ge, Ivars P. Kirsteins

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SIGMOD
2005
ACM

164views Database» more SIGMOD 2005»

RankSQL: Query Algebra and Optimization for Relational Top-k Queries

14 years 8 months ago

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This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...

Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...

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CIKM
2005
Springer

157views Information Technology» more CIKM 2005»

MailRank: using ranking for spam detection

14 years 1 months ago

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Can we use social networks to combat spam? This paper investigates the feasibility of MailRank, a new email ranking and classiﬁcation scheme exploiting the social communication ...

Paul-Alexandru Chirita, Jörg Diederich, Wolfg...

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VLDB
2009
ACM

124views Database» more VLDB 2009»

Instance optimal query processing in spatial networks

14 years 8 months ago