On a direct estimator for average production intervals

Wei Li; James M. Tien

doi:10.1016/0167-6377(95)00036-J

On a direct estimator for average production intervals

Research output: Contribution to journal › Article › peer-review

Abstract

Nozari and Whitt proposed an indirect approach to estimating the average production interval (i.e., the length of time between starting and finishing work on each good or defect-free product), based on measurements of the work-in-process inventory and the production rate. A necessary and sufficient condition for the consistency or validity of their estimator is derived herein. Our validity condition also yields an alternate estimator for the average production interval; as a direct estimator, it has better asymptotic efficiency than the indirect estimator.

Original language	English (US)
Pages (from-to)	41-47
Number of pages	7
Journal	Operations Research Letters
Volume	18
Issue number	1
DOIs	https://doi.org/10.1016/0167-6377(95)00036-J
State	Published - Aug 1995
Externally published	Yes

Keywords

Applications
Average production intervals
Direct and indirect estimations
Networks
Queues

ASJC Scopus subject areas

Software
Management Science and Operations Research
Industrial and Manufacturing Engineering
Applied Mathematics
Statistics, Probability and Uncertainty
Discrete Mathematics and Combinatorics
Modeling and Simulation

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AB - Nozari and Whitt proposed an indirect approach to estimating the average production interval (i.e., the length of time between starting and finishing work on each good or defect-free product), based on measurements of the work-in-process inventory and the production rate. A necessary and sufficient condition for the consistency or validity of their estimator is derived herein. Our validity condition also yields an alternate estimator for the average production interval; as a direct estimator, it has better asymptotic efficiency than the indirect estimator.

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KW - Direct and indirect estimations

KW - Networks

KW - Queues

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On a direct estimator for average production intervals

Abstract

Keywords

ASJC Scopus subject areas

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