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» Modeling and Engineering Adaptive Complex Systems
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ICC
2007
IEEE
114views Communications» more  ICC 2007»
14 years 3 months ago
Downlink MC-2D-CDMA over Time-Variant Frequency-Selective Rayleigh Fading Channels
Abstract— In this paper, the performance of a downlink synchronous MC-CDMA system with joint frequency-time domain spreading over time-variant frequency-selective Rayleigh fading...
Rui Fa, Bayan S. Sharif, Charalampos Tsimenidis
EUROSYS
2010
ACM
14 years 3 months ago
XCPU3: Workload Distribution and Aggregation
The mainstream adoption of cluster, grid, and most recently cloud computing models have broadened the applicability of parallel programming from scientific communities to the bus...
Pravin Shinde, Eric Van Hensbergen
SEW
2006
IEEE
14 years 3 months ago
Integrating Probability with Time and Shared-Variable Concurrency
Complex software systems typically involve features like time, concurrency and probability, where probabilistic computations play an increasing role. It is challenging to formaliz...
Huibiao Zhu, Shengchao Qin, Jifeng He, Jonathan P....
VLDB
2007
ACM
166views Database» more  VLDB 2007»
14 years 3 months ago
To Share or Not To Share?
Intuitively, aggressive work sharing among concurrent queries in a database system should always improve performance by eliminating redundant computation or data accesses. We show...
Ryan Johnson, Nikos Hardavellas, Ippokratis Pandis...
IR
2006
13 years 9 months ago
Automatic question answering using the web: Beyond the Factoid
In this paper we describe and evaluate a Question Answering (QA) system that goes beyond answering factoid questions. Our approach to QA assumes no restrictions on the type of que...
Radu Soricut, Eric Brill