A Cost Variance Investigation Using Belief Functions
نویسندگان
چکیده
Using belief functions, this paper develops a model of the situation of a management team trying to decide if a cost process is in-control, or out-of-control and, thus, in need of investigation. Belief functions allow accounting for uncertainty and information about the cost processes, extending traditional probability theory approaches. The purpose of this paper is to build and investigate the ramifications of that model. In addition, an example is used to illustrate the process.
منابع مشابه
A Partially Observable Markovian Maintenance Process with Continuous Cost Functions
In this paper a two-state Markovian maintenance process where the true state is unknown will be considered. The operating cost per period is a continuous random variable which depends on the state of the process. If investigation cost is incurred at the beginning of any period, the system wit I be returned to the "in-control" state instantaneously. This problem is solved using the average crite...
متن کاملOn The Fractional Minimal Cost Flow Problem of a Belief Degree Based Uncertain Network
A fractional minimal cost flow problem under linear type belief degree based uncertainty is studied for the first time. This type of uncertainty is useful when no historical information of an uncertain event is available. The problem is crisped using an uncertain chance-constrained programming approach and its non-linear objective function is linearized by a variable changing approach. An illus...
متن کاملbelief function and the transferable belief model
Beliefs are the result of uncertainty. Sometimes uncertainty is because of a random process and sometimes the result of lack of information. In the past, the only solution in situations of uncertainty has been the probability theory. But the past few decades, various theories of other variables and systems are put forward for the systems with no adequate and accurate information. One of these a...
متن کاملAn Investigation of Norm of Belief’s Proper Formulation
That falsity is a defect in belief can be captured with a prohibitive norm holding that truth is the necessary condition for permissibility of belief. Furthermore, such a formulation avoids the difficulties encountered in earlier literature that offered prescriptive norms. The normativity of belief thesis is widely discussed in the literature. I criticise bi-conditional formulation of the norm ...
متن کاملEconomical Design of Double Variables Acceptance Sampling With Inspection Errors
The paper presents an economical model for double variable acceptance sampling with inspection errors. Taguchi cost function is used as acceptance cost while quality specification functions are normal with known variance. An optimization model is developed for double variables acceptance sampling scheme at the presence of inspection errors with either constant or monotone value functions. The m...
متن کامل