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IJCNN
2006
IEEE
14 years 3 months ago
Design of Optimal PI Controllers for Doubly Fed Induction Generators Driven by Wind Turbines Using Particle Swarm Optimization
– When subjected to transient disturbances in the power grid, the variable frequency converter (VFC) is the most sensitive part in the variable-speed wind turbine generator syste...
Wei Qiao, Ganesh K. Venayagamoorthy, Ronald G. Har...
ICDE
2005
IEEE
122views Database» more  ICDE 2005»
14 years 2 months ago
Autonomous Index Optimization in XML Databases
Abstract— Defining suitable indexes is a major task when optimizing a database. Usually, a human database administrator defines a set of indexes in the design phase of the data...
Beda Christoph Hammerschmidt, Martin Kempa, Volker...
SIGIR
2005
ACM
14 years 2 months ago
Basic issues on the processing of web queries
Search engines represent a key component of Web economy these days. Despite that, there is not much technical literature available on their design, fine tuning, and internal oper...
Claudine Santos Badue, Ramurti A. Barbosa, Paulo B...
SIGIR
2005
ACM
14 years 2 months ago
Server selection methods in hybrid portal search
The TREC .GOV collection makes a valuable web testbed for distributed information retrieval methods because it is naturally partitioned and includes 725 web-oriented queries with ...
David Hawking, Paul Thomas
SIGMETRICS
2005
ACM
120views Hardware» more  SIGMETRICS 2005»
14 years 2 months ago
Managing server energy and operational costs in hosting centers
The growing cost of tuning and managing computer systems is leading to out-sourcing of commercial services to hosting centers. These centers provision thousands of dense servers w...
Yiyu Chen, Amitayu Das, Wubi Qin, Anand Sivasubram...