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This part of the paper introduces some possible implementations of Self-Scaling Variable Metric algorithms based on the theory presented in Part I. These implementations are analyzed theoretically and discussed qualitatively. A special class of SSVM algorithms is introduced, which has the...
Persistent link: https://www.econbiz.de/10009214140
Typical queues do not have constant arrival rates. This paper discusses effective computational methods for dealing with queues having nonstationary arrival processes. It presents a computationally undemanding approximate method for finding the time dependent mean and standard deviation of the...
Persistent link: https://www.econbiz.de/10009214329
A new criterion is introduced for comparing the convergence properties of variable metric algorithms, focusing on stepwise descent properties. This criterion is a bound on the rate of decrease in the function value at each iterative step (single-step convergence rate). Using this criterion as a...
Persistent link: https://www.econbiz.de/10009191458
A simple model is presented which allows us to determine the optimal size, fillup, and drawdown rates for a Strategic Petroleum Reserve (SPR) under a variety of supply and demand conditions. The optimal policy variables are determined by minimizing an analytic expression which we derive for the...
Persistent link: https://www.econbiz.de/10009198273