On Generalized Pólya Urn Models
2013 ◽
Vol 50
(04)
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pp. 1169-1186
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Keyword(s):
We study an urn model introduced in the paper of Chen and Wei (2005), where at each discrete time step m balls are drawn at random from the urn containing colors white and black. Balls are added to the urn according to the inspected colors, generalizing the well known Pólya-Eggenberger urn model, case m = 1. We provide exact expressions for the expectation and the variance of the number of white balls after n draws, and determine the structure of higher moments. Moreover, we discuss extensions to more than two colors. Furthermore, we introduce and discuss a new urn model where the sampling of the m balls is carried out in a step-by-step fashion, and also introduce a generalized Friedman's urn model.
2013 ◽
Vol 50
(4)
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pp. 1169-1186
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Keyword(s):
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2006 ◽
Vol 43
(4)
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pp. 938-951
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Keyword(s):
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2019 ◽
Vol 34
(4)
◽
pp. 469-483
1997 ◽
Vol 34
(02)
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pp. 426-435
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Keyword(s):
2005 ◽
Vol 57
(1)
◽
pp. 49-59
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Keyword(s):
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2000 ◽
Vol 49
(2)
◽
pp. 163-173
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2008 ◽
Vol DMTCS Proceedings vol. AI,...
(Proceedings)
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