Re: Avviso di seminario

[Daniela Cocchi <cocchi@stat.unibo.it>]

At 15.17 04/12/96 +0100, you wrote:
>*******************************************************************
>
>          DIPARTIMENTO DI STATISTICA, PROBABILITA' 
>                 E STATISTICHE APPLICATE
>
>            UNIVERSITA' "LA SAPIENZA" - ROMA
>
>*******************************************************************
>
>*******************************************************************
>
>                        AVVISO DI SEMINARIO
>
>*******************************************************************
>
>
>   Lunedi' 16 dicembre, ore 11.30 - Aula VII 
>
>
>      CLUSTER ANALYSIS WITH MIXED MODE DATA, MISSING VALUES
>                   AND ERROR IN VARIABLES
>
>
>
>                    Petros Dellaportas 
>                    
>	     Athens University of Economics
>     	        Department of Statistics
>	 	     Athens, Greece
>	 	  
>
>
>
>			Abstract
>
>
>The classification of neolithic tools using cluster analysis 
>enables archaeologists to understand the function of the tools 
>and the technological and cultural conditions of the societies.
>In this paper, Bayesian classification is adopted to analyse
>data which raise the question of whether the observed
>morphological-dimensional variability among the tools is related 
>to their operational use.  The data present technical 
>difficulties for the practitioners, such as the presence of 
>mixed-mode data, missing data, and error in variables.	
>These complications are overcome by employing a finite mixture 
>model and Markov chain Monte Carlo methods.
>The analysis uses prior information which expresses the 
>archaeologist's belief that there are two tool groups similar
>to contemporary adzes and axes.  The resulting mixing densities 
>provide evidence that the morphological-dimensional variability
>among tools is related to the existence of these two tool groups.
>
>Keywords: Bayesian analysis; cluster analysis; error in variables;
>Markov chain Monte Carlo; missing data; mixed mode data.
>
CArissima, non ho proprio possibilità di venire, ma mi piacerebbe molto
ricevere il materiale, se il conferenziere ne distribuisce. Oppuredagli il
mioemail  e cosi' mi puo' inviare le sue opere complete. Bacioni
Ho ricevuto il Gori 2 la vendetta
Daniela
Daniela Cocchi
Dipartimento di Scienze Statistiche "Paolo Fortunati"
Via delle Belle Arti 41
40126 Bologna
Italy
tel. +39 51 258234
fax +39 51 232153