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Modeling daily arrivals to a telephone call center

Avramidis, A.N., Deslauriers, A. and L'Ecuyer, P. (2004) Modeling daily arrivals to a telephone call center Management Science, 50, (7), pp. 896-908. (doi:10.1287/mnsc.1040.0236).

Record type: Article

Abstract

We develop stochastic models of time-dependent arrivals, with focus on the application to call centers. Our models reproduce three essential features of call center arrivals observed in recent empirical studies: a variance larger than the mean for the number of arrivals in any given time interval, a time-varying arrival intensity over the course of a day, and nonzero correlation between the arrival counts in different periods within the same day. For each of the new models, we characterize the joint distribution of the vector of arrival counts, with particular focus on characterizing how the new models are more flexible than standard or previously proposed models. We report empirical results from a study on arrival data from a real-life call center, including the essential features of the arrival process, the goodness of fit of the estimated models, and the sensitivity of various simulated performance measures of the call center to the choice of arrival process model.

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More information

Published date: July 2004
Keywords: call center, arrival process, multivariate distribution, doubly stochastic poisson process, input modeling, correlation
Organisations: Operational Research

Identifiers

Local EPrints ID: 48876
URI: http://eprints.soton.ac.uk/id/eprint/48876
ISSN: 0025-1909
PURE UUID: 497854c1-14da-42b0-9eb6-79b37303c506

Catalogue record

Date deposited: 17 Oct 2007
Last modified: 17 Jul 2017 14:57

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Contributors

Author: A.N. Avramidis
Author: A. Deslauriers
Author: P. L'Ecuyer

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