We propose a new nonlinear classification method based on a Bayesian "sum-of-trees" model, the Bayesian Additive Classification Tree (BACT), whichextends the Bayesian Additive Regression Tree (BART) method into the classification context. Like BART, the BACT is a Bayesian nonparametric...

This paper presents a new method for spatially adaptive local likelihood estimation which applies to a broad class of nonparametric models, including the Gaussian, Poisson and binary response models. The main idea of the method is given a sequence of local likelihood estimates ("weak"...

This paper investigates industry classification systems. During the last 50 yearsthere has been a considerable discussion of problems regarding the classification of economic data by industries. From my perspective, the central point of each classification is to determine a balance between...

We derive the decomposition of the ranked continuous semimartingales i.e. order-statistics processes. We apply it to portfolios generated by functions of the ranked market weights. Thus we generalize recent results of Fernholz.

The main purpose of this paper is to demonstrate the data reduction technique of self-organizing maps and to compare it with data reduction techniques in SPSS. Especially, factor analysis and multidimensional scaling (MDS) are chosen...

The understanding of human behavior in sequential decision tasks is im-portant for economics and socio-psychological sciences. In search tasks,for example when individuals search for the best price of a product, theyare confronted in sequential steps with different situations and they haveto...

Classification schemes are an important issue in the collective use of large document collections. We have investigated the classification of technical documentations in two engineering domains: a steel mill and a sewerage plant company. In both cases we found a coexistence of different...

In diesem ersten Teil einer Reihe von Arbeitspapieren werden Grundbegriffeder Typtheorie (Datentyp, Typkompatibilität, Typsystem) vonProgrammiersprachen eingeführt. Es wird eine Klassifizierung vonTypsystemen vorgenommen.[...]

This book presents the dynamic extension of the Restricted Random Walk Cluster Algorithm by Schöll and Schöll-Paschinger. The dynamic variant allows to quickly integrate changes in the underlying object set or the similarity matrix into the clusters; the results are indistinguishable from the...

Auf Basis verschiedener Annahmen zeigt der folgende Beitrag, daß die von Turowski vorgeschlagenen Objekte der Standardisierung nicht den spezifischen Belangen der Wiederauffindbarkeit von Fachkomponenten genügen. Aus diesem Grund werden die Turowski'schen Standardisierungsobjekte um das Objekt...