Dr. William A. Massey

Personal

Prefix: Dr.
First Name: William
Middle Name: A.
Last Name: Massey

Education

Degree: B.A.
Graduation Year: 1977
Major: Mathematics

Degree: Ph.D.
Graduation Year: 1981
Major: Mathematics

Summary

Dr. Massey is an internationally known researcher in applied probability and has coauthored papers with colleagues from Canada, France and Israel. Some of his research interests are: Queueing Theory, Applied Probability, Stochastic Processes, Special Functions, and Performance Modelling of Telecommunication Systems.

Biography

Dr. Massey has made many original contributions as a mathematician by developing a theory of “dynamical queueing systems”. Classical queueing models assumed that calling rates were constant so they could use the static, equilibrium analysis of time homogeneous Markov chains. However, real communication systems call for the large scale analysis of queueing models with time-varying rates. His thesis at Stanford University created a dynamic, asymptotic method for time inhomogeneous Markov chains called “uniform acceleration” to deal with such problems. Moreover, his research on queueing networks led to new methods of comparing multi-dimensional, Markov processes by viewing them as “stochastic orderings” on “partially ordered spaces”. Finally, one of his most cited papers develops an algorithm to find a dynamic, optimal server staffing schedule for telephone call centers with time varying demand, which led to a patent. Another highly cited paper creates a temporally and spatially dynamic model for the offered load traffic of wireless communication networks.

Research Notes

Dr. Massey has published more than 50 papers in areas such as nonstationary queues, stochastic ordering, queueing networks, database theory, and wireless communications. See the attachment for selected publications.

Lifetime

Year Born: 1956