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Aspects of Robust Statistics are important in many areas. Based on the International Conference on Robust Statistics 2001 (ICORS 2001) in Vorau, Austria, this volume discusses future directions of the discipline, bringing together leading scientists, experienced researchers and practitioners, as well as younger researchers. The papers cover a multitude of different aspects of Robust Statistics. For instance, the fundamental problem of data summary (weights of evidence) is considered and its robustness properties are studied. Further theoretical subjects include e.g.: robust methods for skewness, time series, longitudinal data, multivariate methods, and tests. Some papers deal with computational aspects and algorithms. Finally, the aspects of application and programming tools complete the volume.
Aspects of Robust Statistics are important in many areas. Based on the International Conference on Robust Statistics 2001 (ICORS 2001) in Vorau, Austria, this volume discusses future directions of the discipline, bringing together leading scientists, experienced researchers and practitioners, as well as younger researchers. The papers cover a multitude of different aspects of Robust Statistics. For instance, the fundamental problem of data summary (weights of evidence) is considered and its robustness properties are studied. Further theoretical subjects include e.g.: robust methods for skewness, time series, longitudinal data, multivariate methods, and tests. Some papers deal with computational aspects and algorithms. Finally, the aspects of application and programming tools complete the volume.
This book assembles papers which were presented at the biennial sympo sium in Computational Statistics held und er the a uspices of the International Association for Statistical Computing (IASC), a section of ISI, the Interna tional Statistical Institute. This symposium named COMPSTAT '94 was organized by the Statistical Institutes of the University of Vienna and the University of Technology of Vienna, Austria. The series of COMPSTAT Symposia started 1974 in Vienna. Mean while they took place every other year in Berlin (Germany, 1976), Leiden (The Netherlands, 1978), Edinburgh (Great Britain, 1980), Toulouse (France, 1982), Prague (Czechoslovakia, 1984), Rom (Italy, 1986), Copenhagen (Den mark, 1988), Dubrovnik (Yugoslavia, 1990) and Neuchatel (Switzerland, 1992). This year we are celebrating the 20th anniversary in Vienna, Austria. It has obviously been observed a movement from "traditional" computa tional statistics with emphasis on methods which produce results quickly and reliably, to computationally intensive methods like resampling procedures, Bayesian methods, dynamic graphics, to very recent areas like neural net works, accentuation on spatial statistics, huge data sets, analysis strategies, etc. For the organization of the symposium, new guidelines worked out by the IASC in written form were in effect this time. The goal was to refresh somehow the spirit of the start of COMPSTAT '74, keep the tradition of the series and ensure a certain continuity in the sequence of biannual meetings."
Geostatistik ist ein relativ neuer Zweig der Statistik, der sich mit der Anwendung von statistischen Methoden in den Geowissenschaften besch.!lftigt. Quantitative Analysen dieser Art werden aber auch in sehr modernen Disziplinen wie Umweltschutz, Raumplanung, etc. gebraucht. Man sollte deshalb vielleicht besser das Stichwort "Statistische Analysen von r.!lumlich- abh.!lngigen Daten" verwenden. Der Gegenstand "Geostatistik" ist unmittelbar mit dem Namen G. Matheron, dem Statistiker aus Fontainebleau in Frankreich verbunden. Er legte vor fast 20 Jahren das Fundament fUr diesen Wissenschaftszweig. Ein theoretische Standardwerk in Buchform erschien 1978 von Journel und Huijbregts, das allerdings fUr Anwender manchmal nicht so einfach zu lesen ist. Die vorliegende Schrift entstand nach intensivem Studium des oben erw.!lhnten Buches, dem sichtlich viele Ideen und Beispiele entnommen sind. Sie diente auch als Unterlage einer mehrj.!lhrigen Vorlesung Uber "Mathematische Methoden in der Montangeologie" an der Montanuniversit.!lt Leoben. Auf tiefgreifende theoretische Behandlungen wurde weitgehend verzichtet, dem Leser sollen eher einige sinnvolle Anwendungen kurz n.!lher gebracht und WeiterfUhrendes durch Literaturhinweise erg.!lnzt werden. Wichtige Anregungen fUr den Text kamen auch aus verschie- denen unver8ffentlichten Skripten wie das von Prof. H. Siemes aus Aaachen, A.G. Royle aus Leeds und J.-M. Rendu aus Johannesburg. Eingeleitet wurde die Arbeit jedoch durch die Erm8glichung der Abhaltung der Vorlesung in Leoben, fUr die ich besonders den Professoren Ch. Schmidt und W. Imrich danke. Viel Motivation und Anregung erhielt ich durch die Diskussionen mit R. Sinding-Larson und H. Omre aus Norwegen sowie mit D. Francois-Bongarcon aus Fontainebleau.
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