Feedback control of waiting times

Feedback control of waiting times.

Feedback loops are known as a versatile tool for controlling transport in small systems, which usually have large intrinsic fluctuations. Here we investigate the control of a temporal correlation function, the waiting-time distribution, under active and passive feedback conditions. We develop a general formalism and then specify to the simple unidirectional transport model, where we compare cos...

Minimal waiting times in static traffic control

The paper discusses the question of the optimal control of an unsymmetric bottleneck system with Poisson arrival processes having the minimization of the mean individual waiting time as objective. The setup allows the straightforward generalization to more complicated forms of traffic organization. The notion of the mean individual waiting time is based on a theorem of the Little type, which is...

Predicting joint replacement waiting times.

Currently, the median waiting time for total hip and knee replacement in Ontario is greater than 6 months. Waiting longer than 6 months is not recommended and may result in lower post-operative benefits. We developed a simulation model to estimate the proportion of patients who would receive surgery within the recommended waiting time for surgery over a 10-year period considering a wide range o...

Nhs Waiting times in Wales

Waiting for a Retweet: Modeling Waiting Times in Information Propagation

Social media are increasingly used to disseminate emergency warnings, alerts, and other hazard-related information. In this context, the timing of information propagation is of immediate interest. Time-sensitive information must reach members of the general public before the pertinence of the information expires. In this research we build a preliminary model for the time between information dis...