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Concepts and a case study for a flexible class of graphical markov models

Författare och institution:
Nanny Wermuth (Institutionen för matematiska vetenskaper, matematisk statistik, Chalmers/GU); D.R. Cox (-)
Publicerad i:
Robustness and Complex Data Structures: Festschrift in Honour of Ursula Gather, s. 331-350
ISBN:
9783642354946
Publikationstyp:
Kapitel
Förlag:
Springer
Publiceringsår:
2013
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
With graphical Markov models, one can investigate complex dependences, summarize some results of statistical analyses with graphs and use these graphs to understand implications of well-fitting models. The models have a rich history and form an area that has been intensively studied and developed in recent years. We give a brief review of the main concepts and describe in more detail a flexible subclass of models, called traceable regressions. These are sequences of joint response regressions for which regression graphs permit one to trace and thereby understand pathways of dependence. We use these methods to reanalyze and interpret data from a prospective study of child development, now known as the ‘Mannheim Study of Children at Risk’. The two related primary features concern cognitive and motor development, at the age of 4.5 and 8 years of a child. Deficits in these features form a sequence of joint responses. Several possible risks are assessed at birth of the child and when the child reached age 3 months and 2 years.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Matematik
Postens nummer:
236189
Posten skapad:
2016-05-10 15:50
Posten ändrad:
2016-07-05 14:06

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