Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Irwin Greenberg"'
Autor:
Irwin Greenberg
Publikováno v:
Operations Research Letters. 21:153-158
Level-crossing problems are encountered in a number of stochastic processes such as queueing, dams, inventory and in the cumulative sum (CUSUM) charts of statistical quality control. Approximate computational methods, using Markov chains to determine
Autor:
Irwin Greenberg, Arnold Barnett
Publikováno v:
Interfaces. 21:96-102
The paper discusses the continuing controversy about the magnitudes of particular risks and proper ranking of various hazards that affect our longevity and the longevity of our descendants.
Autor:
Irwin Greenberg
Publikováno v:
Mathematical and Computer Modelling. 15:51-54
An 'explosive' stochastic process features an intensity function that decays exponentially in the absence of occurrences and increases in jumps following each occurrence. Two such processes are examined and some transient and steady-state probabiliti
Autor:
Irwin Greenberg
Publikováno v:
Journal of the American Society for Information Science. 41:330-333
Probability estimates for letters in a finite alphabet are derived in order to apply the Huffman algorithm to determine an optimal binary prefix-condition code. The estimates maximize the entropy subject to constraints specifying second-level orderin
Autor:
Irwin Greenberg
Publikováno v:
Naval Research Logistics Quarterly. 27:223-230
Single server queues with general interarrival and service times are approximated by queues with two-point (Bernoulli) interarrival times and exponential service times. The parameters are chosen such that the first four moments of the difference of t
Autor:
Irwin Greenberg
Publikováno v:
Mathematische Operationsforschung und Statistik. Series Optimization. 14:277-284
An algorithm is developed which yields the straight lines that bound a set of points from below and from above and which minimizes the sum of the vertical distances from the points to the lines. The algorithm can also be used to construct bounds so t
Autor:
Irwin Greenberg
Publikováno v:
IIE Transactions. 18:398-401
The classical stochastic inventory problem yields a solution for the optimum amount to stock for a given demand distribution. In the inverse inventory problem the amount stocked is given and the decision maker must determine the optimum value of the
Autor:
Jack Gostl, Irwin Greenberg
Publikováno v:
Communications of the ACM. 28:500-505
Inexact or real-world queueing techniques are used to determine that the number of buffers provided in system design is indeed adequate to guard against message loss.
Autor:
Irwin Greenberg
Publikováno v:
Naval Research Logistics Quarterly. 24:451-455
Single server queues with hyperexponential service times are studied. Explicit expressions are derived for the waiting time and state distributions.