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FUIN
2006
139views more  FUIN 2006»
13 years 8 months ago
Efficient Parallel Query Processing by Graph Ranking
In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorithm due to M...
Dariusz Dereniowski, Marek Kubale
IPPS
2009
IEEE
14 years 3 months ago
Minimizing total busy time in parallel scheduling with application to optical networks
—We consider a scheduling problem in which a bounded number of jobs can be processed simultaneously by a single machine. The input is a set of n jobs J = {J1, . . . , Jn}. Each j...
Michele Flammini, Gianpiero Monaco, Luca Moscardel...
ICRA
2007
IEEE
171views Robotics» more  ICRA 2007»
14 years 2 months ago
Visual Servoing by Optimization of a 2D/3D Hybrid Objective Function
— In this paper, we present a new hybrid visual servoing algorithm for robot arm positioning task. Hybrid methods in visual servoing partially combine the 2D and 3D visual inform...
A. H. Abdul Hafez, C. V. Jawahar
INFOCOM
2007
IEEE
14 years 3 months ago
Fault-Tolerant Relay Node Placement in Heterogeneous Wireless Sensor Networks
— Existing work on placing additional relay nodes in wireless sensor networks to improve network connectivity typically assumes homogeneous wireless sensor nodes with an identica...
Xiaofeng Han, Xiang Cao, Errol L. Lloyd, Chien-Chu...
ICC
2009
IEEE
14 years 3 months ago
Robust Cyclic Space-Frequency Filtering for BICM-OFDM with Outdated CSIT
— In this paper, we introduce robust cyclic space– frequency (CSF) filtering for systems combining bit–interleaved coded modulation (BICM) and orthogonal frequency division ...
Harry Z. B. Chen, Robert Schober, Wolfgang H. Gers...