Exact(7)
With throughput time approximations in the inner-level queuing network, the outer-level semi-open queuing network is reduced to an M/G/C queue.
To the author's knowledge, there is no previous work on oscillator first-passage time approximations where the excitation is assumed to have a time-varying mean.
The determination of DNE limits, in real-time, is challenging; to reduce the computational time, approximations are made and mathematical models are simplified.
Since only explicit solutions of a small class of SDEs with Poisson random measure can be obtained, one needs, in general, discrete time approximations which can be divided into strong approximations and weak approximations.
To better observe the accuracy of the completion time approximations for the preemptive in case of failure service discipline, simulation results and approximations for the moments of the LP packets completion time, X2 and X 2 ∗, are compared in the upper part of Table3.
For this reason the time evolution of corresponding moments of the kinetic distribution function have been estimated and the results have been confronted to available analytical relaxation time approximations.
Similar(51)
A polynomial time approximation scheme is presented for this problem.
We design polynomial time approximation schemes for these three variants.
NC-approximation schemes for various NP-Hard and PSPACE-Hard problems restricted to geometric graphs are developed in [31].
Moreover, this expression is true within parabolic band approximation, but not with relaxation time approximation alone.
Such time approximation requires the solution of 3D elliptic equations at each time step.
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