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In this case , the minumum number of iterations for each iterative diagonalization is also commented out as the default value ( 3 ) is usually best . The generic algorithm can also be readily extended to soft decision decoding of any binary linear block code with a dense parity check matrix , where most versions of iterative decoding algorithms do not perform well . Many partitioned scientific programs can be modeled as iterative execution ofcomputational tasks , represented by iterative task graphs ( ITGs ) . The issues addressed encompass the design of error-resilient source codes , joint source-channel source codes , and multiply descriptive codes , minimizing the impact of channel noise ( packet losses , bit errors ) on the quality of the reconstructed signal , as well as of turbo or iterative decoding techniques in order to address the tradeoff performance-complexity . In this paper weconsider the scheduling of a weighted iterative task graph ( ITG ) in thepresence of communication overhead . Moreover , with practical application data from one of the largest cotton colored weaving enterprises in China , numerical computational results show that these genetic algorithms are effective and robust , and that especially the performance of the hybrid genetic algorithm based on simulated annealing and the iterative heuristic fine-tuning operator is the best among them . The third expression , the iterative expression , is evaluated at the end of each iteration and is typically used to increment the loop counter . With the optimize insultor keyword commented out , PARATEC will do the default method of potential mixing along with iterative diagonalization to get to the ground state . This tutorial provides an understanding of the principles governing the codes behavior , analytical tools to evaluate the maximum likelihood performance , design rules for both the constituent codes and the interleaver , explanation of the maximum-a-posteriori algorithms which form the core of the iterative decoding algorithms , extensive analytical and simulation results , a comparative analysis of the implementation complexity , and a number of important applications like third-generation wireless communications , and deep-space communications . Then comes the energy breakdown after the first iterative diagonalization . This is achieved through use of just-in-time performance prediction coupled with iterative heuristic algorithms for optimisation of the meta-schedule . Each agent is a representative of a local grid resource and utilises predictive application performance data and iterative heuristic algorithms to engineer local load balancing across multiple hosts . By coupling application performance data with iterative heuristic algorithms , the framework is able to balance the processes of minimising run-to-completion time ( makespan ) and idle time , whilst adhering to service deadlines on a per-task basis . Each grid scheduler utilises predictive application performance data and an iterative heuristic algorithm to engineer local load balancing across multiple processing nodes . Johnson ( essentially the same method ) have improved over the Broyden method especially when an incomplete partial iterative diagonalization is used in place of a full exact diagonalization . The break and continue statements work with a for loop like they do with a while loop , except that continue causes the iterative expression to be evaluated before the loop conditional expression is checked . Abstract : Error-correcting codes which employ iterative decoding algorithms are now considered state of the art in communications .