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» Estimating Robust Query Models with Convex Optimization
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143
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SIGIR
2009
ACM
15 years 11 months ago
An improved markov random field model for supporting verbose queries
Recent work in supervised learning of term-based retrieval models has shown significantly improved accuracy can often be achieved via better model estimation [2, 10, 11, 17]. In ...
Matthew Lease
DKE
2006
123views more  DKE 2006»
15 years 5 months ago
Cost models for distance joins queries using R-trees
The K-Closest-Pairs Query (K-CPQ), a type of distance join in spatial databases, discovers the K pairs of objects formed from two different datasets with the K smallest distances....
Antonio Corral, Yannis Manolopoulos, Yannis Theodo...
199
Voted
SSDBM
2002
IEEE
149views Database» more  SSDBM 2002»
15 years 10 months ago
A Cost Model for Interval Intersection Queries on RI-Trees
The efficient management of interval data represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tree1 ), an effi...
Hans-Peter Kriegel, Martin Pfeifle, Marco Pöt...
158
Voted
CDC
2008
IEEE
15 years 11 months ago
Robust generalized asymptotic regulation against non-stationary sinusoidal disturbances
Abstract— Attenuation of sinusoidal disturbances with uncertain and arbitrarily time-varying frequencies is considered in the form of a generalized asymptotic regulation problem....
Hakan Köroglu, Carsten W. Scherer
GLOBECOM
2009
IEEE
15 years 2 months ago
Power Allocation for Cooperative Diversity Networks with Inaccurate CSI: A Robust and Constrained Kalman Filter Approach
In this paper, a novel Kalman filter-based power allocation scheme is developed for cooperative networks with inaccurate channel state information (CSI). The channel estimation err...
Mohamad Khattar Awad, Veluppillai Mahinthan, Xuemi...