Optimal resource allocation in stochastic activity networks via the electromagnetism approach: a platform implementation in Java

An optimal resource allocation approach to stochastic multimodal projects had been previously developed by applying a Dynamic Programming model which proved to be very demanding computationally. A new approach, the Electromagnetism-like Mechanism, has also been adopted and implemented in Mat lab, to solve this problem. This paper presents the implementation of the Electromagnetism approach using an Object Oriented language, Java, and a distributed version to be run in a computer network, in order to take advantage of available computational resources.info:eu-repo/semantics/publishedVersio

The Theory of Networks and Management Science: Part II

The second part of the expository paper started with Elmaghraby, S. E. 1970. The theory of networks and management science. Part I. Management Sci. 17(1, September) 1-34.

The Economic Lot Scheduling Problem (ELSP): Review and Extensions

The ELSP is a time-honored problem that "has been around" since 1915. It is the problem of accommodating cyclical production patterns when several products are made on a single facility. Recent contributions to its resolution resulted in either analytical approaches to a restricted problem, or heuristic approaches to the entire problem. This paper reviews critically the various contributions to the problem, and extends the analysis in the following four directions: (a) An improved analytical approach, (b) A test for feasibility, (c) A systematic means for escape from infeasibility, and (d) A procedure for the determination of a basic period for a given set of multipliers to achieve a feasible schedule.

An Algebra for the Analysis of Generalized Activity Networks

This paper generalizes the approach of activity networks, exemplified by PERT and CPM, to networks in which activites and events occur probabilistically and contain logical relationships of a more complicated nature. For example, from a specific event some activities are undertaken with certainty while others probabilistically. It presents an algebra of analysis taking the decision rules or logical structure of the system as given. The approach is applicable to the analysis of practical situations such as contract bidding, flow in shops, etc.

Rejoinder

Author's rejoinder to comments [Yen, J. Y. 1971. On elmaghraby's "the theory of networks and management science." Management Sci. 18(1, September) 84-86.] about his paper.