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ACM Transactions on Management Information Systems (TMIS) : Volume 7

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Issue 4(Special Issue on Informatics for Smart Health and Wellbeing), December 2013

Smart Health and Wellbeing

Modeling Throughput of Emergency Departments via Time Series: An Expectation Maximization Algorithm

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I Can Help You Change! An Empathic Virtual Agent Delivers Behavior Change Health Interventions

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Modeling Throughput of Emergency Departments via Time Series: An Expectation Maximization Algorithm

Content Provider	ACM Digital Library
Author	Mcclean, Sally Liu, Dongmei Young, Terry Wang, Zidong Liu, Xiaohui Eatock, Julie
Copyright Year	2014
Abstract	In this article, the expectation maximization (EM) algorithm is applied for modeling the throughput of emergency departments via available time-series data. The dynamics of emergency department throughput is developed and evaluated, for the first time, as a stochastic dynamic model that consists of the noisy measurement and first-order autoregressive (AR) stochastic dynamic process. By using the EM algorithm, the model parameters, the actual throughput, as well as the noise intensity, can be identified simultaneously. Four real-world time series collected from an emergency department in West London are employed to demonstrate the effectiveness of the introduced algorithm. Several quantitative indices are proposed to evaluate the inferred models. The simulation shows that the identified model fits the data very well.
Starting Page	1
Ending Page	16
Page Count	16
File Format	PDF
ISSN	2158656X
e-ISSN	21586578
DOI	10.1145/2544105
Volume Number	4
Issue Number	4
Journal	ACM Transactions on Management Information Systems (TMIS)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-12-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	EM algorithm Healthcare Emergency department Modeling Time series data
Content Type	Text
Resource Type	Article
Subject	Management Information Systems Computer Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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Modeling Throughput of Emergency Departments via Time Series: An Expectation Maximization Algorithm

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