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» The Complexity of Iterated Multiplication
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TMI
2008
91views more  TMI 2008»
15 years 3 months ago
System Calibration and Statistical Image Reconstruction for Ultra-High Resolution Stationary Pinhole SPECT
For multi-pinhole SPECT, iterative reconstruction algorithms are preferred over analytical methods, because of the often complex multi-pinhole geometries and the ability of iterat...
Frans van der Have, Brendan Vastenhouw, Marc Rentm...
AAAI
2011
14 years 3 months ago
Pushing the Power of Stochastic Greedy Ordering Schemes for Inference in Graphical Models
We study iterative randomized greedy algorithms for generating (elimination) orderings with small induced width and state space size - two parameters known to bound the complexity...
Kalev Kask, Andrew Gelfand, Lars Otten, Rina Decht...
ICASSP
2009
IEEE
15 years 10 months ago
Factor graph based design of an OFDM-IDMA receiver performing joint data detection, channel estimation, and channel length selec
We present a factor graph based design of a receiver for pilotassisted OFDM-IDMA systems transmitting over frequency-selective channels. The receiver performs joint iterative mult...
Clemens Novak, Gerald Matz, Franz Hlawatsch
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WECWIS
2007
IEEE
130views ECommerce» more  WECWIS 2007»
15 years 10 months ago
Improved Rules for the Resource Allocation Design
Iterative Combinatorial Auctions (ICA) have been getting increasing attention both from researchers and in practice as they can increase efficiency of complex markets with substi...
Pasha Shabalin, Bernd Laqua, Alexander Pikovsky
AIED
2007
Springer
15 years 10 months ago
Effect of Metacognitive Support on Student Behaviors in Learning by Teaching Environments
We have developed environments that use teaching as a metacognitive, reflective, and iterative process to help middle school students learn about complex processes. We demonstrate ...
Jason Tan, John Wagster, Yanna Wu, Gautam Biswas