Concurrent estimation
Encyclopedia
In discrete event simulation
concurrent estimation is a technique used to estimate the effect of alternate parameter settings on a discrete event system. For example from observation of a (computer simulated) telecommunications system with a specified buffer size
, one estimates what the performance would be if the buffer size had been set to the alternate values 
. Effectively the technique generates (during a single simulation run) 
alternative histories for the system state variables, which have the same probability of occurring as the main simulated state path; this results in a computational saving as compared to running 
additional simulations, one for each alternative parameter value.
The technique was developed by Cassandras, Strickland and Panayiotou.
Discrete Event Simulation
In discrete-event simulation, the operation of a system is represented as a chronological sequence of events. Each event occurs at an instant in time and marks a change of state in the system...
concurrent estimation is a technique used to estimate the effect of alternate parameter settings on a discrete event system. For example from observation of a (computer simulated) telecommunications system with a specified buffer size
, one estimates what the performance would be if the buffer size had been set to the alternate values . Effectively the technique generates (during a single simulation run) alternative histories for the system state variables, which have the same probability of occurring as the main simulated state path; this results in a computational saving as compared to running additional simulations, one for each alternative parameter value.The technique was developed by Cassandras, Strickland and Panayiotou.