An Improved Ems Algorithm For Back-Projection Of AIDS Incidence Data

Ian C. Marschner; Lyndsey F. Watson

doi:10.1080/00949659408811595

An Improved Ems Algorithm For Back-Projection Of AIDS Incidence Data

Ian C. Marschner, Lyndsey F. Watson

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

5 Citations (Scopus)

Abstract

An iterative procedure for estimating HIV incidence from AIDS incidence data is discussed. The approach, proposed by Becker et al. (1991), makes use of the EM algorithm combined with a smoothing step. In this paper we suggest a modification of the method, based on an alternative choice for the complete data model used to invoke the EM algorithm. It is found that this modification improves the stability and flexibility of the estimates, although it generally leads to slower convergence.

Original language	English
Pages (from-to)	1-20
Number of pages	20
Journal	Journal of Statistical Computation and Simulation
Volume	50
Issue number	1-2
DOIs	https://doi.org/10.1080/00949659408811595
Publication status	Published - 1 Aug 1994
Externally published	Yes

Keywords

Back-projection
EM-algorithm
HIV/AIDS incidence
smoothing

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10.1080/00949659408811595

Cite this

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abstract = "An iterative procedure for estimating HIV incidence from AIDS incidence data is discussed. The approach, proposed by Becker et al. (1991), makes use of the EM algorithm combined with a smoothing step. In this paper we suggest a modification of the method, based on an alternative choice for the complete data model used to invoke the EM algorithm. It is found that this modification improves the stability and flexibility of the estimates, although it generally leads to slower convergence.",

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year = "1994",

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AB - An iterative procedure for estimating HIV incidence from AIDS incidence data is discussed. The approach, proposed by Becker et al. (1991), makes use of the EM algorithm combined with a smoothing step. In this paper we suggest a modification of the method, based on an alternative choice for the complete data model used to invoke the EM algorithm. It is found that this modification improves the stability and flexibility of the estimates, although it generally leads to slower convergence.

KW - Back-projection

KW - EM-algorithm

KW - HIV/AIDS incidence

KW - smoothing

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An Improved Ems Algorithm For Back-Projection Of AIDS Incidence Data

Abstract

Keywords

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