# Rh/Fragment 138 08

## < Rh

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 Typus Verschleierung Bearbeiter Hindemith Gesichtet
Untersuchte Arbeit:
Seite: 138, Zeilen: 8-15
Quelle: Hoffman et al. 2008
Seite(n): 2 (Exzerpt), Zeilen: 1. Spalte: 33ff
Notice that popular tables become less and less likely to sit down at a new table. In this representation the dishes correspond to probability density functions, and the process of ordering a dish l corresponds to drawing the parameters &#x03C6l to a probability density function, as for example a Gaussian from a prior distribution G over those parameters. The process of a customer l choosing a table cl corresponds to choosing a distribution &#x03C6cl from which to draw an observation yl. Since the structure of the process, is that customers tend to sit at tables with many other customers producing the cluster behaviour, thought it has an infinite number of mixture components to choose from. Notice that popular tables become more popular, and that as more customers come in they become less and less likely to sit down at a new table.

[...]. The “dishes” in the CRP correspond to probability density functions, and the process of “ordering” a dish k corresponds to drawing the parameters &#x03C6k to a PDF from a prior distribution H over those parameters. (For example, each dish k can be a Gaussian with parameters {&#x03BCk, &#x03A3k}= &#x03C6k ~ H.) The process of a customer t choosing a table zt corresponds to choosing a distribution &#x03C6zt from which to draw an observation yt [...]. Since customers in the CRP tend to sit at tables with many other customers, the DPMM tends to draw points from the same mixture components again and again even though it has an infinite number of mixture components to choose from.

 Anmerkungen Kein Quellenverweis zu finden, obwohl der Text weitgehend wörtlich mit der Quelle übereinstimmt (wobei die Variablen anders benannt sind). Man beachte den sinnlosen ersten Satz in der Dissertation, der aber trotzdem wörtlich mit Satzfragmenten aus der Quelle übereinstimmt. Sichter (Hindemith), WiseWoman