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» On the Conversion between Number Systems
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WSC
2007
15 years 9 months ago
Determining efficient simulation run lengths for real time decision making
Suppose that there are a number of alternative ways of operating a system, and a performance measure is available for comparing them. Simulation runs can be carried out to estimat...
Russell C. H. Cheng
ECIR
2004
Springer
15 years 8 months ago
A Study of User Interaction with a Concept-Based Interactive Query Expansion Support Tool
A medium-scale user study was carried out to investigate the usability of a concept-based query expansion support tool. The tool was fully integrated into the interface of an IR sy...
Hideo Joho, Mark Sanderson, Micheline Beaulieu
IVS
2008
90views more  IVS 2008»
15 years 6 months ago
Jigsaw: supporting investigative analysis through interactive visualization
Investigative analysts who work with collections of text documents connect embedded threads of evidence in order to formulate hypotheses about plans and activities of potential in...
John T. Stasko, Carsten Görg, Zhicheng Liu
JSAC
2007
69views more  JSAC 2007»
15 years 6 months ago
Multi-Antenna Downlink Channels with Limited Feedback and User Selection
Abstract— We analyze the sum-rate performance of a multiantenna downlink system carrying more users than transmit antennas, with partial channel knowledge at the transmitter due ...
Taesang Yoo, Nihar Jindal, Andrea J. Goldsmith
QUESTA
2008
82views more  QUESTA 2008»
15 years 6 months ago
Corrected asymptotics for a multi-server queue in the Halfin-Whitt regime
To obtain insight in the quality of heavy-traffic approximations for queues with many servers, we consider the steady-state number of waiting customers in an M/D/s queue as s . I...
Augustus J. E. M. Janssen, Johan van Leeuwaarden, ...